Mayfield

Mayfield Fund is a California-based venture capital firm founded in 1969 and headquartered in Menlo Park, with an additional office in Mumbai. It focuses on early-stage to growth investments in technology companies across sectors including enterprise software, data infrastructure, semiconductors, communications, artificial intelligence, consumer technology, health and wellness, energy tech, and related services. The firm pursues global opportunities, with emphasis on California—especially the San Francisco and San Jose area—and cross-border investments in Europe, India and China, including companies with substantial operations in India or China. Typical investments range from about $1 million to $15 million, with follow-on rounds and the potential for debt investments around $1 million. Mayfield often leads rounds or co-invests with other investors and helps assemble syndicates to support portfolio companies.

Rajeev Batra

Partner

Navin Chaddha

Managing Director

Tim Chang

Partner

Rishi Garg

Venture Partner

Vikram Godse

Partner and Managing Director, India

Past deals in Telecommunications

Retym

Series D in 2025
Retym is a startup focused on semiconductor technology. It aims to revolutionize the data center and telecommunications industries through its innovative solutions. The company's team comprises experienced ASIC designers, optical communications experts, and seasoned investors.

Knowlarity

Series C in 2016
Knowlarity is a leading provider of cloud-based business communication solutions. It offers a range of services, including virtual phone numbers, interactive voice response (IVR) systems, toll-free numbers, and call center software. The company also specializes in AI-driven products such as speech recognition, chatbots, and voicebots, along with video and messaging solutions. Knowlarity's platforms enable businesses to streamline communication processes, enhance customer interactions, and improve overall operational efficiency.

Netsil

Seed Round in 2015
Netsil Inc. is a company that specializes in monitoring solutions for distributed cloud applications. Founded in 2012 and headquartered in San Francisco, California, Netsil provides an observability platform that enables DevOps teams to ensure uptime and performance of their applications. Its flagship product, the Application Operations Center (AOC), automatically creates a comprehensive map of applications, identifying both internal and external services while capturing their dependencies. This topology map allows for real-time monitoring of key performance indicators, helping teams address service-level pain points and troubleshoot performance bottlenecks without requiring code instrumentation. By leveraging high-resolution metrics, Netsil equips Site Reliability Engineers (SREs) and DevOps professionals with the visibility necessary for incident response, capacity planning, and effective deployment management. As of March 2018, Netsil operates as a subsidiary of Nutanix, Inc.

ServiceMax

Series F in 2015
ServiceMax, Inc. is a leading provider of cloud-based field service software solutions, specializing in Service Execution Management, which encompasses both Field Service Management and Asset Service Management. Founded in 1999 and headquartered in Pleasanton, California, with additional offices across the globe, ServiceMax offers a comprehensive platform designed to enhance the productivity of equipment-centric service operations for various sectors, including life sciences, industrial manufacturing, oil and gas, telecommunications, and more. The company's offerings include advanced features such as work order management, scheduling and dispatch, inventory and contract management, and analytics, all aimed at improving efficiency and customer service. ServiceMax also provides tailored solutions like ServiceMax Linx for automated scheduling and workforce optimization, as well as ServicePulse for enhanced collaboration. By leveraging its cloud-based technology, ServiceMax enables enterprises to optimize their service processes, increase revenue, and ensure compliance while delivering superior customer experiences.

Knowlarity

Series B in 2014
Knowlarity is a leading provider of cloud-based business communication solutions. It offers a range of services, including virtual phone numbers, interactive voice response (IVR) systems, toll-free numbers, and call center software. The company also specializes in AI-driven products such as speech recognition, chatbots, and voicebots, along with video and messaging solutions. Knowlarity's platforms enable businesses to streamline communication processes, enhance customer interactions, and improve overall operational efficiency.

ServiceMax

Series E in 2014
ServiceMax, Inc. is a leading provider of cloud-based field service software solutions, specializing in Service Execution Management, which encompasses both Field Service Management and Asset Service Management. Founded in 1999 and headquartered in Pleasanton, California, with additional offices across the globe, ServiceMax offers a comprehensive platform designed to enhance the productivity of equipment-centric service operations for various sectors, including life sciences, industrial manufacturing, oil and gas, telecommunications, and more. The company's offerings include advanced features such as work order management, scheduling and dispatch, inventory and contract management, and analytics, all aimed at improving efficiency and customer service. ServiceMax also provides tailored solutions like ServiceMax Linx for automated scheduling and workforce optimization, as well as ServicePulse for enhanced collaboration. By leveraging its cloud-based technology, ServiceMax enables enterprises to optimize their service processes, increase revenue, and ensure compliance while delivering superior customer experiences.

HealthTap

Series B in 2013
HealthTap is a virtual-first healthcare provider that delivers affordable urgent and primary care services to all Americans, regardless of insurance status. The company aims to ensure equitable access to quality physician care across the nation. HealthTap's platform allows users to connect with doctors through various means, including limited texting, video appointments, and urgent care consultations with the next available physician. Additionally, the service offers free responses to health inquiries from a network of volunteer doctors across different specialties, empowering users to select and maintain a long-term primary care physician for their ongoing health needs.

ServiceMax

Series D in 2012
ServiceMax, Inc. is a leading provider of cloud-based field service software solutions, specializing in Service Execution Management, which encompasses both Field Service Management and Asset Service Management. Founded in 1999 and headquartered in Pleasanton, California, with additional offices across the globe, ServiceMax offers a comprehensive platform designed to enhance the productivity of equipment-centric service operations for various sectors, including life sciences, industrial manufacturing, oil and gas, telecommunications, and more. The company's offerings include advanced features such as work order management, scheduling and dispatch, inventory and contract management, and analytics, all aimed at improving efficiency and customer service. ServiceMax also provides tailored solutions like ServiceMax Linx for automated scheduling and workforce optimization, as well as ServicePulse for enhanced collaboration. By leveraging its cloud-based technology, ServiceMax enables enterprises to optimize their service processes, increase revenue, and ensure compliance while delivering superior customer experiences.

HealthTap

Series A in 2011
HealthTap is a virtual-first healthcare provider that delivers affordable urgent and primary care services to all Americans, regardless of insurance status. The company aims to ensure equitable access to quality physician care across the nation. HealthTap's platform allows users to connect with doctors through various means, including limited texting, video appointments, and urgent care consultations with the next available physician. Additionally, the service offers free responses to health inquiries from a network of volunteer doctors across different specialties, empowering users to select and maintain a long-term primary care physician for their ongoing health needs.

ServiceMax

Series C in 2011
ServiceMax, Inc. is a leading provider of cloud-based field service software solutions, specializing in Service Execution Management, which encompasses both Field Service Management and Asset Service Management. Founded in 1999 and headquartered in Pleasanton, California, with additional offices across the globe, ServiceMax offers a comprehensive platform designed to enhance the productivity of equipment-centric service operations for various sectors, including life sciences, industrial manufacturing, oil and gas, telecommunications, and more. The company's offerings include advanced features such as work order management, scheduling and dispatch, inventory and contract management, and analytics, all aimed at improving efficiency and customer service. ServiceMax also provides tailored solutions like ServiceMax Linx for automated scheduling and workforce optimization, as well as ServicePulse for enhanced collaboration. By leveraging its cloud-based technology, ServiceMax enables enterprises to optimize their service processes, increase revenue, and ensure compliance while delivering superior customer experiences.

Echelon

Post in 2011
Echelon Corporation specializes in the development, marketing, and sale of embedded components, modules, edge servers, and software tailored for various automation markets, including building, industrial, and transportation sectors. The company offers a diverse range of products, including chips, gateways, and control networking solutions branded under LONWORKS and IzoT. Its portfolio also features the LumInsight and Lumewave products, which encompass both wired and wireless control nodes, smart gateways, and a software-based Central Management System designed for managing lighting networks. Echelon serves original equipment manufacturers and systems integrators, facilitating the integration of its products into their systems. The company's offerings extend to the electric utility industry through its Networked Energy Services system, which enhances communication between utilities and customers. Headquartered in Santa Clara, California, Echelon Corporation has a global marketing reach across the Americas, Europe, the Middle East, Africa, and the Asia Pacific/Japan, utilizing a network of direct sales organizations, representatives, and distributors. Established in 1988, Echelon operates as a subsidiary of Adesto Technologies Corporation.

Narus

Venture Round in 2009
Narus, a subsidiary of The Boeing Company, specializes in cybersecurity solutions, leveraging advanced analytics to proactively identify cyber threats from both internal and external sources. The company's product lineup includes the NarusInsight system, a traffic intelligence platform that captures, analyzes, and correlates Internet protocol traffic. Additionally, the NarusInsight Secure Suite is designed to assist service providers and government entities in detecting network attacks, abuse, and behavioral anomalies. By employing sophisticated big data analytics, Narus enhances organizations' ability to predict and characterize advanced security threats, ultimately empowering them to safeguard their critical assets. The company serves a diverse clientele, including governments, carriers, and enterprises worldwide.

Borqs Technologies

Series B in 2009
Borqs Technologies specializes in developing software solutions and products for Android-based smart connected devices. It offers customizable hardware products like trackers, smart watches, ruggedized handsets, tablets, and mobile connectivity modules. The company generates revenue primarily from hardware sales, with a significant portion coming from its key market, China.

Ubicom

Series E in 2009
Ubicom is a privately held company based in Sunnyvale, California, specializing in the development of communications and media processor (CMP) and software platforms. The company focuses on addressing the specific needs of real-time interactive applications and multimedia content delivery within the digital home environment. Ubicom offers optimized system-level solutions tailored for original equipment manufacturers (OEMs) across a diverse range of products, including wireless routers, access points, VoIP gateways, and streaming media devices. Their innovative multithreaded processor design and real-time operating system, combined with application-level solutions, aim to deliver a high-quality user experience characterized by exceptional ease of use.

WiChorus

Series C in 2008
WiChorus is a company that specializes in software solutions for network management within the telecommunications sector. It develops innovative products for both mobile and fixed networks, aiming to enhance operational efficiency for service providers. Notably, WiChorus offers a smartcore platform that supports the deployment of 4G packet core infrastructure, including WiMAX and LTE networks. This platform includes capabilities for service and subscriber management, content management, and network optimization, allowing operators to enhance performance while effectively monetizing their internet services. Through its advanced technology, WiChorus enables telecommunications operators to achieve superior network intelligence and performance.

WiChorus

Series B in 2007
WiChorus is a company that specializes in software solutions for network management within the telecommunications sector. It develops innovative products for both mobile and fixed networks, aiming to enhance operational efficiency for service providers. Notably, WiChorus offers a smartcore platform that supports the deployment of 4G packet core infrastructure, including WiMAX and LTE networks. This platform includes capabilities for service and subscriber management, content management, and network optimization, allowing operators to enhance performance while effectively monetizing their internet services. Through its advanced technology, WiChorus enables telecommunications operators to achieve superior network intelligence and performance.

Jaxtr

Series A in 2007
Jaxtr, Inc. is a social communications company based in Mountain View, California, founded in 2005. The company offers a range of services that integrate global calling, SMS, and social networking. Jaxtr initially gained attention with its VOIP widget, which allows users to receive calls while keeping their personal phone numbers private. It provides users with free local numbers to bypass expensive international charges and charges a nominal fee for connections to mobile phones. Additionally, Jaxtr operates Cafe Jaxtr, a social network designed for users to connect and discuss shared interests, while also offering free global SMS to enhance user engagement. The company differentiates itself from competitors by enabling calls from any phone, including mobile and landline, without requiring software downloads or Internet access. As of June 2009, Jaxtr operates as a subsidiary of Sabse Technologies Inc.

Hammerhead Systems

Series D in 2007
Hammerhead Systems, Inc. provides MPLS and Ethernet aggregation and switching solutions for business services, residential broadband, and wireless backhaul markets in the United States and internationally. It offers HSX 6000, which enables aggregation, interworking, and migration of access protocols across various core infrastructure; and Pegador SOA EMS, an element management system that provides Web services through XML/SOAP. The company was founded in 2002 and is headquartered in Mountain View, California. On May 21, 2009, Hammerhead Systems, Inc filed a voluntary petition for liquidation under Chapter 7 in the US Bankruptcy Court for the Northern District of California, San Jose.

Jaxtr

Seed Round in 2007
Jaxtr, Inc. is a social communications company based in Mountain View, California, founded in 2005. The company offers a range of services that integrate global calling, SMS, and social networking. Jaxtr initially gained attention with its VOIP widget, which allows users to receive calls while keeping their personal phone numbers private. It provides users with free local numbers to bypass expensive international charges and charges a nominal fee for connections to mobile phones. Additionally, Jaxtr operates Cafe Jaxtr, a social network designed for users to connect and discuss shared interests, while also offering free global SMS to enhance user engagement. The company differentiates itself from competitors by enabling calls from any phone, including mobile and landline, without requiring software downloads or Internet access. As of June 2009, Jaxtr operates as a subsidiary of Sabse Technologies Inc.

Casabi

Series B in 2007
Casabi is a provider of Voice over IP applications that offers an end-to-end solution for telecom carriers, enabling the delivery of web-based content and services to various IP-connected devices, including cordless phones and smart home devices. The company's flagship product, CasaCenter, is an integrated suite of cloud-based services designed to enhance family communication and organization. It features tools such as a family dashboard, messaging capabilities, a shared calendar, task lists, and a comprehensive address book, along with visual voicemail and SMS functionalities. Casabi recognizes the increasing prevalence of broadband and connected home devices, which has created a demand for a cohesive system that optimally delivers relevant content and applications to low-cost device screens. By facilitating seamless interaction among diverse technologies, Casabi aims to enhance the user experience in smart homes, starting with telephony and expanding to other connected devices.

Tejas Networks

Venture Round in 2007
Tejas Networks Limited is an Indian company that specializes in designing, developing, and manufacturing optical and data networking products. Established in 2000 and headquartered in Bengaluru, the company serves a diverse clientele, including telecommunications service providers, internet service providers, utility companies, defense organizations, and government entities, both domestically and internationally. Tejas Networks offers a wide range of products, including converged packet optical solutions, enterprise Ethernet switches, and high-density metro core platforms. Their offerings also encompass multi-service provisioning platforms, LTE solutions, and advanced GPON elements for optical access networks. Additionally, Tejas Networks provides software solutions for network management and optimization, along with services such as network planning, installation, and customer support. The company's products are utilized in various applications, including access networks and wireless backhaul, contributing significantly to its revenue primarily from the Indian market.

Narus

Venture Round in 2006
Narus, a subsidiary of The Boeing Company, specializes in cybersecurity solutions, leveraging advanced analytics to proactively identify cyber threats from both internal and external sources. The company's product lineup includes the NarusInsight system, a traffic intelligence platform that captures, analyzes, and correlates Internet protocol traffic. Additionally, the NarusInsight Secure Suite is designed to assist service providers and government entities in detecting network attacks, abuse, and behavioral anomalies. By employing sophisticated big data analytics, Narus enhances organizations' ability to predict and characterize advanced security threats, ultimately empowering them to safeguard their critical assets. The company serves a diverse clientele, including governments, carriers, and enterprises worldwide.

Ubicom

Series C in 2006
Ubicom is a privately held company based in Sunnyvale, California, specializing in the development of communications and media processor (CMP) and software platforms. The company focuses on addressing the specific needs of real-time interactive applications and multimedia content delivery within the digital home environment. Ubicom offers optimized system-level solutions tailored for original equipment manufacturers (OEMs) across a diverse range of products, including wireless routers, access points, VoIP gateways, and streaming media devices. Their innovative multithreaded processor design and real-time operating system, combined with application-level solutions, aim to deliver a high-quality user experience characterized by exceptional ease of use.

Fultec Semiconductor

Series C in 2006
Fultec Semiconductor is a circuit protection semiconductor company based in Mountain View, California, founded in 2001. It specializes in producing transient blocking devices designed to safeguard telecommunication and data communication systems from over-voltage and over-current conditions. The company's products provide extensive bandwidth circuit protection against various electrical threats, including lightning strikes, power induction, power cross, and short circuit events. Fultec's offerings find applications across multiple sectors such as telecommunications, data communications, sensors, automotive, and power distribution. As of 2008, Fultec Semiconductor operates as a subsidiary of Bourns, Inc.

PingCo

Series A in 2006
PingCo.com designs, develops, and provides online cell phone software that enables text messaging over data channel. The company is based in China.

Hammerhead Systems

Series C in 2006
Hammerhead Systems, Inc. provides MPLS and Ethernet aggregation and switching solutions for business services, residential broadband, and wireless backhaul markets in the United States and internationally. It offers HSX 6000, which enables aggregation, interworking, and migration of access protocols across various core infrastructure; and Pegador SOA EMS, an element management system that provides Web services through XML/SOAP. The company was founded in 2002 and is headquartered in Mountain View, California. On May 21, 2009, Hammerhead Systems, Inc filed a voluntary petition for liquidation under Chapter 7 in the US Bankruptcy Court for the Northern District of California, San Jose.

Pure Networks

Series B in 2006
Pure Networks, Inc. is a Seattle-based company that specializes in developing networking software and services tailored for home networks, small businesses, original equipment manufacturers, and broadband and Internet service providers across the United States. Established in 2002, the company offers a range of products, including Network Magic Pro, which assists clients in setting up and managing their networks, and Network Magic Essentials, which connects various devices. Additionally, it provides tools such as Speed Meter Pro for diagnosing network issues and Networks Security Scan for identifying security vulnerabilities. For corporate clients, Pure Networks delivers platforms for custom software development, device installation automation, and support solutions aimed at reducing operational costs. The company's offerings also include technologies that enhance network setup and maintenance for original equipment manufacturers and broadband providers.

Casabi

Series A in 2005
Casabi is a provider of Voice over IP applications that offers an end-to-end solution for telecom carriers, enabling the delivery of web-based content and services to various IP-connected devices, including cordless phones and smart home devices. The company's flagship product, CasaCenter, is an integrated suite of cloud-based services designed to enhance family communication and organization. It features tools such as a family dashboard, messaging capabilities, a shared calendar, task lists, and a comprehensive address book, along with visual voicemail and SMS functionalities. Casabi recognizes the increasing prevalence of broadband and connected home devices, which has created a demand for a cohesive system that optimally delivers relevant content and applications to low-cost device screens. By facilitating seamless interaction among diverse technologies, Casabi aims to enhance the user experience in smart homes, starting with telephony and expanding to other connected devices.

Inphi

Series D in 2005
Inphi Corporation is a provider of high-speed analog and mixed-signal semiconductor solutions, primarily serving the communications, data center, and computing markets in the United States. The company specializes in products that enhance data transmission capabilities, including amplifiers, encoders, multiplexers, and clock recovery devices, operating at speeds up to 100 Gbps. These solutions are integral to the functionality of servers, routers, switches, and storage systems, addressing bandwidth bottlenecks and optimizing throughput while minimizing latency. Inphi collaborates with system vendors to create proprietary simulation models that predict performance prior to semiconductor fabrication. The company's extensive product line also supports applications in test and measurement equipment and military radar systems. Inphi sells its products directly to original equipment manufacturers and indirectly through module manufacturers and original design manufacturers. Founded in 2000 and based in Sunnyvale, California, Inphi was previously known as TCom Communications, Inc. before rebranding in 2001.

Sunrocket

Series B in 2005
Sunrocket is a US-based company that specializes in redeveloping brand equity in underperforming and distressed assets. Founded in early 2004 by former MCI executives Joyce Dorris and Paul Erickson, the company has undergone a management overhaul aimed at creating a customer-focused online platform. Sunrocket.com aspires to be a comprehensive resource for home and business communication services, equipment, and products. The company offers access to industry-leading communication technologies and mobile entertainment, emphasizing cost-effective solutions. Additionally, Sunrocket is expanding its market presence to include international customers, further enhancing its service offerings and reach.

LGC Wireless

Series B in 2005
LGC Wireless, Inc. specializes in developing in-building wireless solutions, focusing on voice and data coverage as well as capacity for compact GSM and CDMA networks. The company provides a range of offerings including distributed antenna systems, wireless LAN solutions, and network systems tailored for public operators and equipment manufacturers. Its modular products encompass base station subsystems, network switching solutions, and various value-added services designed to enhance wireless data support and maintenance. Additionally, LGC Wireless delivers professional services such as needs assessments, site surveys, project management, and onsite support for various sectors, including hospitality, corporate environments, government, healthcare, and transportation. Founded in 1996 and headquartered in San Jose, California, LGC Wireless operates across multiple regions, including North America, Europe, and Asia Pacific. The company is a subsidiary of ADC Telecommunications Inc.

T-RAM Semiconductor

Series C in 2005
T-RAM Semiconductor is a fabless semiconductor company that specializes in memory products utilizing its proprietary Thin-Capacitively-Coupled-Thyristor (TCCT) technology. This innovative approach enables the production of memory cells that are significantly smaller—one-fourth to one-eighth the size—compared to traditional 6T-SRAM technology. By leveraging its TCCT technology, T-RAM Semiconductor aims to deliver higher density and lower-cost High Performance Synchronous SRAM solutions. These products are designed to meet the discrete and embedded memory requirements of high-performance computer servers, networking, and telecommunications sectors.

Bevocal

Series E in 2005
BeVocal, Inc. is a provider of hosted customer automated self-service solutions, primarily serving communications service providers and enterprise call centers. Founded in 1999 and headquartered in Mountain View, California, the company specializes in developing speech-based customer care solutions tailored for the mobile communications market. BeVocal offers an integrated suite of voice and data applications, including speech-enabled call routing and destination applications that facilitate automated service interactions. Its self-service systems empower users to navigate customer service processes independently, thereby reducing the need for live agents. The solutions provided by BeVocal enhance customer satisfaction and drive revenue growth by enabling efficient customer service activation, care, and fulfillment. In 2007, BeVocal became a subsidiary of Nuance Communications, Inc.

Inphi

Series C in 2004
Inphi Corporation is a provider of high-speed analog and mixed-signal semiconductor solutions, primarily serving the communications, data center, and computing markets in the United States. The company specializes in products that enhance data transmission capabilities, including amplifiers, encoders, multiplexers, and clock recovery devices, operating at speeds up to 100 Gbps. These solutions are integral to the functionality of servers, routers, switches, and storage systems, addressing bandwidth bottlenecks and optimizing throughput while minimizing latency. Inphi collaborates with system vendors to create proprietary simulation models that predict performance prior to semiconductor fabrication. The company's extensive product line also supports applications in test and measurement equipment and military radar systems. Inphi sells its products directly to original equipment manufacturers and indirectly through module manufacturers and original design manufacturers. Founded in 2000 and based in Sunnyvale, California, Inphi was previously known as TCom Communications, Inc. before rebranding in 2001.

Orative Corporation

Series B in 2004
Orative Corporation develops mobile software solutions that improve voice communications for business mobile phone users. Its Orative Enterprise Software, a client-server solution, provides users to coordinate conversations, collaborate with colleagues, screen unwanted calls and interruptions, and access personal and corporate phone books. Orative was founded in 2002 and is headquartered in San Jose, California. Orative Corporation operates as a subsidiary of Cisco Systems, Inc.

Tasman Networks

Venture Round in 2004
Tasman Networks is a manufacturer of Multi-service edge router.

Pure Networks

Series A in 2004
Pure Networks, Inc. is a Seattle-based company that specializes in developing networking software and services tailored for home networks, small businesses, original equipment manufacturers, and broadband and Internet service providers across the United States. Established in 2002, the company offers a range of products, including Network Magic Pro, which assists clients in setting up and managing their networks, and Network Magic Essentials, which connects various devices. Additionally, it provides tools such as Speed Meter Pro for diagnosing network issues and Networks Security Scan for identifying security vulnerabilities. For corporate clients, Pure Networks delivers platforms for custom software development, device installation automation, and support solutions aimed at reducing operational costs. The company's offerings also include technologies that enhance network setup and maintenance for original equipment manufacturers and broadband providers.

Ubicom

Series B in 2004
Ubicom is a privately held company based in Sunnyvale, California, specializing in the development of communications and media processor (CMP) and software platforms. The company focuses on addressing the specific needs of real-time interactive applications and multimedia content delivery within the digital home environment. Ubicom offers optimized system-level solutions tailored for original equipment manufacturers (OEMs) across a diverse range of products, including wireless routers, access points, VoIP gateways, and streaming media devices. Their innovative multithreaded processor design and real-time operating system, combined with application-level solutions, aim to deliver a high-quality user experience characterized by exceptional ease of use.

MobileWay

Series D in 2004
MobileWay is a provider of mobile services that focuses on facilitating direct and secure connections to wireless operator networks globally. The company operates in two primary areas: mobile marketing and entertainment services tailored for brands and media firms, as well as network services designed for operators and content companies. With a robust network of 150 direct operator connections, MobileWay manages the deployment of wireless data applications, enabling businesses to deliver wireless multimedia messaging solutions effectively.

Mobile 365

Series D in 2004
Mobile 365 is the new company formed from the merger of the two leaders in the mobile messaging world: InphoMatch, the leader in interoperable data and messaging services for mobile operators, and Mobileway, the leader in messaging solutions for brands and content providers. It is the global leader in the delivery, billing, and settlement of mobile messaging services. Their extensive footprint enables us to reach more mobile users—with more types of mobile data—than anyone else on the globe. They reliably deliver messages, premium content, and value-added services for the leading mobile operators, content providers, brands, and media companies worldwide.

Hammerhead Systems

Series B in 2004
Hammerhead Systems, Inc. provides MPLS and Ethernet aggregation and switching solutions for business services, residential broadband, and wireless backhaul markets in the United States and internationally. It offers HSX 6000, which enables aggregation, interworking, and migration of access protocols across various core infrastructure; and Pegador SOA EMS, an element management system that provides Web services through XML/SOAP. The company was founded in 2002 and is headquartered in Mountain View, California. On May 21, 2009, Hammerhead Systems, Inc filed a voluntary petition for liquidation under Chapter 7 in the US Bankruptcy Court for the Northern District of California, San Jose.

MobileWay

Series C in 2003
MobileWay is a provider of mobile services that focuses on facilitating direct and secure connections to wireless operator networks globally. The company operates in two primary areas: mobile marketing and entertainment services tailored for brands and media firms, as well as network services designed for operators and content companies. With a robust network of 150 direct operator connections, MobileWay manages the deployment of wireless data applications, enabling businesses to deliver wireless multimedia messaging solutions effectively.

Peribit Networks

Series D in 2003
Peribit Networks, founded in 2000 and based in Santa Clara, California, specializes in WAN optimization solutions designed to enhance network performance for enterprise customers. The company offers a range of platforms and software that enable increased WAN capacity, faster application performance, and prioritized application delivery, while also providing visibility into network and application performance. Utilizing its proprietary Molecular Sequence Reduction (MSR) technology, Peribit Networks effectively analyzes and eliminates redundant data from WAN traffic, which can account for 70% to 90% of capacity being wasted on repetitive information. This innovative approach allows applications to operate significantly more efficiently over the WAN, benefiting over 900 enterprise customers globally.

Sylantro

Series D in 2003
Sylantro Systems specializes in providing software solutions for telecommunications service providers, enabling them to deliver hosted Voice over Internet Protocol (VoIP) applications and services to a variety of customers, including businesses and consumers. Its flagship platform, Synergy, is designed for carriers, allowing them to quickly launch a range of high-value telephony services, such as IP Trunking and hosted PBX solutions. In addition to its core software offerings, Sylantro also provides maintenance services, training, installation, and consulting to support telecom carriers and application service providers in delivering outsourced business communication services.

PostX

Series B in 2003
PostX ensures the secure electronic delivery of information vital to business and customer relationships. PostX delivers significant cost savings and benefits from an increase in effective communications with employees, partners, and customers. They enable secure delivery via Email, the Web, and Wireless networks to your customers, partners and employees.

Hammerhead Systems

Series A in 2003
Hammerhead Systems, Inc. provides MPLS and Ethernet aggregation and switching solutions for business services, residential broadband, and wireless backhaul markets in the United States and internationally. It offers HSX 6000, which enables aggregation, interworking, and migration of access protocols across various core infrastructure; and Pegador SOA EMS, an element management system that provides Web services through XML/SOAP. The company was founded in 2002 and is headquartered in Mountain View, California. On May 21, 2009, Hammerhead Systems, Inc filed a voluntary petition for liquidation under Chapter 7 in the US Bankruptcy Court for the Northern District of California, San Jose.

Orative Corporation

Series A in 2003
Orative Corporation develops mobile software solutions that improve voice communications for business mobile phone users. Its Orative Enterprise Software, a client-server solution, provides users to coordinate conversations, collaborate with colleagues, screen unwanted calls and interruptions, and access personal and corporate phone books. Orative was founded in 2002 and is headquartered in San Jose, California. Orative Corporation operates as a subsidiary of Cisco Systems, Inc.

Bevocal

Series D in 2003
BeVocal, Inc. is a provider of hosted customer automated self-service solutions, primarily serving communications service providers and enterprise call centers. Founded in 1999 and headquartered in Mountain View, California, the company specializes in developing speech-based customer care solutions tailored for the mobile communications market. BeVocal offers an integrated suite of voice and data applications, including speech-enabled call routing and destination applications that facilitate automated service interactions. Its self-service systems empower users to navigate customer service processes independently, thereby reducing the need for live agents. The solutions provided by BeVocal enhance customer satisfaction and drive revenue growth by enabling efficient customer service activation, care, and fulfillment. In 2007, BeVocal became a subsidiary of Nuance Communications, Inc.

SkyStream Networks

Venture Round in 2003
SkyStream Networks develops market-leading networking solutions for advanced video and IP services. Our solutions enable our service provider, enterprise and federal customers to deliver enhanced video and IP services cost-effectively over wired and wireless networks. SkyStream's customers and partners include BT, Clear Channel Worldwide, Convergent Media, EchoStar Communications Corporation, Gilat, New Skies Satellites, Safeway, Telefonica and Telespazio.

Leapstone Systems

Series B in 2003
Leapstone Systems, Inc. specializes in communication software solutions tailored for network operators in the United States. The company offers the Communications Convergence Engine, a versatile software platform that facilitates the design, packaging, deployment, and management of diverse content and services. Its product suite includes serviceBROKER, which allows operators to seamlessly integrate various services such as voice and IPTV. By providing a unified platform for creating and managing converged video, voice, and data service bundles, Leapstone Systems enables wireline, wireless, and cable operators to enhance their service offerings across multiple networks and devices.

Packet Design

Series A in 2003
Packet Design, LLC specializes in performance analytics technology for network operators, enterprises, and government agencies. Founded in 2003 and based in San Jose, California, the company offers an integrated suite of IP traffic and route analysis solutions, prominently featuring its Route Explorer system. This system is tailored for network engineers and operators, providing real-time monitoring, application path analysis, and advanced diagnostic tools. Key modules include Traffic Explorer for traffic flow insights, Layer 2 and Layer 3 routing analysis, and Multicast Explorer for visibility into services like market trading data and multimedia distribution. With capabilities in network simulation, troubleshooting, and cloud management, Packet Design enables clients to enhance service delivery, reduce churn, and optimize network performance. As of July 2018, the company operates as a subsidiary of Ciena Corporation.

Tasman Networks

Venture Round in 2002
Tasman Networks is a manufacturer of Multi-service edge router.

Inphi

Series B in 2002
Inphi Corporation is a provider of high-speed analog and mixed-signal semiconductor solutions, primarily serving the communications, data center, and computing markets in the United States. The company specializes in products that enhance data transmission capabilities, including amplifiers, encoders, multiplexers, and clock recovery devices, operating at speeds up to 100 Gbps. These solutions are integral to the functionality of servers, routers, switches, and storage systems, addressing bandwidth bottlenecks and optimizing throughput while minimizing latency. Inphi collaborates with system vendors to create proprietary simulation models that predict performance prior to semiconductor fabrication. The company's extensive product line also supports applications in test and measurement equipment and military radar systems. Inphi sells its products directly to original equipment manufacturers and indirectly through module manufacturers and original design manufacturers. Founded in 2000 and based in Sunnyvale, California, Inphi was previously known as TCom Communications, Inc. before rebranding in 2001.

Moxi Digital

Venture Round in 2002
Moxi Digital, Inc. is a home-entertainment platform company, designs software and hardware for cable and satellite set-top boxes. Founded in January 2000 by WebTV(R) creator Steve Perlman, Moxi Digital, Inc. is focused delivering a total home entertainment solution that enhances and simplifies the consumer experience, while providing new revenue opportunities for broadband operators. The Company will fulfill this promise by providing advanced platforms, products and enabling technologies to broadband network operators such as cable, satellite and DSL providers. Moxi can provide a complete end-to-end solution including both hardware and software or specific components that are integrated into existing cable and satellite systems. The Company's first all-in-one home entertainment platform, the Moxi Media Center, is a combination digital set-top box, video and music jukebox, media server, and Internet gateway and firewall. Through this device, which costs about the same as a basic digital set-top box in a typical home configuration, operators can deliver revenue-generating video, music and data applications to subscribers. Headquartered in Palo Alto, California, the privately-held start-up has attracted $67 million in Series A financing from America Online, Cisco Systems, EchoStar Communications, Mayfield, Vulcan Ventures, The Barksdale Group, The Washington Post Company and Macromedia Ventures.

Voxeo

Series C in 2002
Voxeo offers hosting and premise platform solutions designed to enhance communication for businesses of varying sizes. The company specializes in automating and connecting common phone calls through Interactive Voice Response (IVR) and Voice over Internet Protocol (VoIP) technology. By leveraging next-generation communication applications, Voxeo aims to improve customer service while reducing operational costs. Their services also integrate with mobile devices and social networks, allowing enterprises to better engage with their customers.

Peribit Networks

Series C in 2002
Peribit Networks, founded in 2000 and based in Santa Clara, California, specializes in WAN optimization solutions designed to enhance network performance for enterprise customers. The company offers a range of platforms and software that enable increased WAN capacity, faster application performance, and prioritized application delivery, while also providing visibility into network and application performance. Utilizing its proprietary Molecular Sequence Reduction (MSR) technology, Peribit Networks effectively analyzes and eliminates redundant data from WAN traffic, which can account for 70% to 90% of capacity being wasted on repetitive information. This innovative approach allows applications to operate significantly more efficiently over the WAN, benefiting over 900 enterprise customers globally.

Wavesplitter

Venture Round in 2002
WaveSplitter Technologies, Inc. specializes in the development, manufacturing, and distribution of both active and passive optical components for broadband networks catering to enterprise and residential markets. The company offers a diverse product range, including passive pump laser combiners, isolators, wavelength division multiplexers, and transceivers designed for various network types such as LANs, metro, access, and long haul. Additionally, it provides HDMI optical extender cables, fused fiber and planar light guide circuit products, and various optical modules. WaveSplitter's offerings aim to enhance the performance and capacity of optical networks while reducing infrastructure costs for its customers. Founded in 1996 and originally known as Applied Fiber Optics, the company is headquartered in Fremont, California, with additional facilities in Taipei, Taiwan, and Shenzhen, China.

Monet Mobile Networks

Venture Round in 2002
Headquartered in Seattle, Monet Mobile Networks Inc. (formerly Burst Wireless Inc.) was founded by telecommunications industry veterans in mid-1999. Monet is a wireless Internet service provider, offering users fast, mobile access to the complete Internet, email, corporate intranet applications, data and customer support. The Monet service can be purchased online at www.monetmobile.com, at Wireless Retail, Inc., Blockbuster Video, Best Buy stores and other authorized dealers in Sioux Falls, S.D., Fargo, N.D. and Moorhead, MN for $49.95 per month. The company's investors include Mayfield, Soros Private Equity Partners, Qualcomm, Intel Capital and Hook Partners. For more information, please visit www.monetmobile.com.

Bevocal

Series C in 2002
BeVocal, Inc. is a provider of hosted customer automated self-service solutions, primarily serving communications service providers and enterprise call centers. Founded in 1999 and headquartered in Mountain View, California, the company specializes in developing speech-based customer care solutions tailored for the mobile communications market. BeVocal offers an integrated suite of voice and data applications, including speech-enabled call routing and destination applications that facilitate automated service interactions. Its self-service systems empower users to navigate customer service processes independently, thereby reducing the need for live agents. The solutions provided by BeVocal enhance customer satisfaction and drive revenue growth by enabling efficient customer service activation, care, and fulfillment. In 2007, BeVocal became a subsidiary of Nuance Communications, Inc.

White Rock Networks

Series C in 2002
White Rock Networks, Inc. is a technology company that specializes in transport and switching, Ethernet service delivery, and Internet Protocol (IP) aggregation solutions targeted at carriers. Founded in 1999 and headquartered in Richardson, Texas, the company provides an array of transport and switching solutions, including SONET transport, Ethernet and TDM access, integrated ADM/DCS, standalone mini DCS, DWDM, and wireless backhaul systems. Additionally, White Rock Networks offers services related to dispersion compensation and various amplification techniques, enhancing signal quality and transmission reliability. The company's IP aggregation services encompass router port aggregation, backhaul solutions, and carrier-grade Voice over IP (VoIP) services, enabling efficient data transmission and communication for telecommunications providers.

QuantumShift Communications

Series C in 2001
A fundamental shift has occurred in communications services. The change affects a company's ability to grow. It impacts revenues and profitability. It determines how well an enterprise can serve its customers, work with its partners, support its employees. Yet, surprisingly, it is often overlooked by top executives. Quite simply, communications services have become mission critical. Voice, data, cellular, local, long distance, Internet access, DSL, VPN, calling cards, PBX, voice mail, unified messaging, network management, broadband access – these services are the lifeblood of any enterprise that wants to tackle global markets, innovate at Internet speed, and engage in the continuous transformation that is demanded by today's competitive environment. Unfortunately, the process of procuring and managing them has become increasingly chaotic and costly. Communications has become the third largest operational expense in mid-size companies. Even at that expense, much of it remains hidden, scattered throughout the enterprise, distributed among the business units, duplicated by mergers and acquisitions. Communications managers find themselves inundated with a mind-numbing array of service options, overwhelmed with literally boxes of bills, and continually asking for more headcount. Managing these multiple vendors diverts critical resources away from core business initiatives. Billing errors reduce funding for research, product development, marketing, and sales. Outages and downtime undermine relationships with customers and partners. With so much at stake, a comprehensive, single-source solution is needed for procuring and managing communications services.

Voxeo

Series C in 2001
Voxeo offers hosting and premise platform solutions designed to enhance communication for businesses of varying sizes. The company specializes in automating and connecting common phone calls through Interactive Voice Response (IVR) and Voice over Internet Protocol (VoIP) technology. By leveraging next-generation communication applications, Voxeo aims to improve customer service while reducing operational costs. Their services also integrate with mobile devices and social networks, allowing enterprises to better engage with their customers.

PostX

Series B in 2001
PostX ensures the secure electronic delivery of information vital to business and customer relationships. PostX delivers significant cost savings and benefits from an increase in effective communications with employees, partners, and customers. They enable secure delivery via Email, the Web, and Wireless networks to your customers, partners and employees.

MobileWay

Series B in 2001
MobileWay is a provider of mobile services that focuses on facilitating direct and secure connections to wireless operator networks globally. The company operates in two primary areas: mobile marketing and entertainment services tailored for brands and media firms, as well as network services designed for operators and content companies. With a robust network of 150 direct operator connections, MobileWay manages the deployment of wireless data applications, enabling businesses to deliver wireless multimedia messaging solutions effectively.

TeraLogic

Venture Round in 2001
TeraLogic designs integrated circuits, software and platforms for digital TV.

Clearwater Networks

Series B in 2001
Clearwater Networks (formerly XStream Logic) is developing the industry’s first single-processor packet processing solution capable of performing 7-layer packet processing at 10-Gigabit data rates. XStream’s family of network processors is targeted at solving the critical bottleneck in next-generation network infrastructure equipment: layers 4-7 packet processing. Edge and core routers, content-aware web switches, network attached storage devices, and other networking appliances all require the need to implement advanced services that are beyond the capability of existing semiconductor solutions. XStream ’s products are able to solve a wide variety of applications and advanced services using a simple, single-processor architecture that reduces system complexity and improves customers’ time to market.

Inphi

Series A in 2001
Inphi Corporation is a provider of high-speed analog and mixed-signal semiconductor solutions, primarily serving the communications, data center, and computing markets in the United States. The company specializes in products that enhance data transmission capabilities, including amplifiers, encoders, multiplexers, and clock recovery devices, operating at speeds up to 100 Gbps. These solutions are integral to the functionality of servers, routers, switches, and storage systems, addressing bandwidth bottlenecks and optimizing throughput while minimizing latency. Inphi collaborates with system vendors to create proprietary simulation models that predict performance prior to semiconductor fabrication. The company's extensive product line also supports applications in test and measurement equipment and military radar systems. Inphi sells its products directly to original equipment manufacturers and indirectly through module manufacturers and original design manufacturers. Founded in 2000 and based in Sunnyvale, California, Inphi was previously known as TCom Communications, Inc. before rebranding in 2001.

Wavesplitter

Venture Round in 2000
WaveSplitter Technologies, Inc. specializes in the development, manufacturing, and distribution of both active and passive optical components for broadband networks catering to enterprise and residential markets. The company offers a diverse product range, including passive pump laser combiners, isolators, wavelength division multiplexers, and transceivers designed for various network types such as LANs, metro, access, and long haul. Additionally, it provides HDMI optical extender cables, fused fiber and planar light guide circuit products, and various optical modules. WaveSplitter's offerings aim to enhance the performance and capacity of optical networks while reducing infrastructure costs for its customers. Founded in 1996 and originally known as Applied Fiber Optics, the company is headquartered in Fremont, California, with additional facilities in Taipei, Taiwan, and Shenzhen, China.

Sylantro

Series C in 2000
Sylantro Systems specializes in providing software solutions for telecommunications service providers, enabling them to deliver hosted Voice over Internet Protocol (VoIP) applications and services to a variety of customers, including businesses and consumers. Its flagship platform, Synergy, is designed for carriers, allowing them to quickly launch a range of high-value telephony services, such as IP Trunking and hosted PBX solutions. In addition to its core software offerings, Sylantro also provides maintenance services, training, installation, and consulting to support telecom carriers and application service providers in delivering outsourced business communication services.

AlterEgo Networks

Series B in 2000
AlterEgo Networks Inc. specializes in providing Adaptive Network Services for the wireless Internet. The company operates a robust nationwide network of distributed servers that efficiently adapt and deliver rich, customized web content and applications at high speeds. This service is designed for users accessing the Internet through various wireless and connected devices, including PDAs, cell phones, pagers, mobile laptops, and other Internet appliances. By focusing on infrastructure and services tailored for the mobile Internet, AlterEgo Networks aims to enhance user experiences across a diverse range of platforms.

Voxeo

Venture Round in 2000
Voxeo offers hosting and premise platform solutions designed to enhance communication for businesses of varying sizes. The company specializes in automating and connecting common phone calls through Interactive Voice Response (IVR) and Voice over Internet Protocol (VoIP) technology. By leveraging next-generation communication applications, Voxeo aims to improve customer service while reducing operational costs. Their services also integrate with mobile devices and social networks, allowing enterprises to better engage with their customers.

Sphera Optical Networks

Venture Round in 2000
Sphera Optical Networks, Inc. specializes in the design and development of optical metropolitan networks tailored for Internet Service Providers (ISPs), Application Service Providers (ASPs), and global service providers. The company provides a range of services including point-to-point connections, HUB services, and optical virtual private networks. Additionally, Sphera offers resources such as metrohub white papers and network management solutions, enabling clients to optimize their network performance and enhance service delivery. Through its innovative approach, Sphera aims to support the growing demand for high-capacity and reliable optical networking solutions in metropolitan areas.

Comstellar Technologies

Series A in 2000
Comstellar Technologies is a technology company based in Los Altos, California that develops communications infrastructure, including network components and subsystems for optical and wireless communications. The firm focuses on delivering essential network hardware to support scalable, high-capacity connectivity across technology platforms.

QuantumShift Communications

Series C in 2000
A fundamental shift has occurred in communications services. The change affects a company's ability to grow. It impacts revenues and profitability. It determines how well an enterprise can serve its customers, work with its partners, support its employees. Yet, surprisingly, it is often overlooked by top executives. Quite simply, communications services have become mission critical. Voice, data, cellular, local, long distance, Internet access, DSL, VPN, calling cards, PBX, voice mail, unified messaging, network management, broadband access – these services are the lifeblood of any enterprise that wants to tackle global markets, innovate at Internet speed, and engage in the continuous transformation that is demanded by today's competitive environment. Unfortunately, the process of procuring and managing them has become increasingly chaotic and costly. Communications has become the third largest operational expense in mid-size companies. Even at that expense, much of it remains hidden, scattered throughout the enterprise, distributed among the business units, duplicated by mergers and acquisitions. Communications managers find themselves inundated with a mind-numbing array of service options, overwhelmed with literally boxes of bills, and continually asking for more headcount. Managing these multiple vendors diverts critical resources away from core business initiatives. Billing errors reduce funding for research, product development, marketing, and sales. Outages and downtime undermine relationships with customers and partners. With so much at stake, a comprehensive, single-source solution is needed for procuring and managing communications services.

T-RAM Semiconductor

Series A in 2000
T-RAM Semiconductor is a fabless semiconductor company that specializes in memory products utilizing its proprietary Thin-Capacitively-Coupled-Thyristor (TCCT) technology. This innovative approach enables the production of memory cells that are significantly smaller—one-fourth to one-eighth the size—compared to traditional 6T-SRAM technology. By leveraging its TCCT technology, T-RAM Semiconductor aims to deliver higher density and lower-cost High Performance Synchronous SRAM solutions. These products are designed to meet the discrete and embedded memory requirements of high-performance computer servers, networking, and telecommunications sectors.

Ubicom

Venture Round in 2000
Ubicom is a privately held company based in Sunnyvale, California, specializing in the development of communications and media processor (CMP) and software platforms. The company focuses on addressing the specific needs of real-time interactive applications and multimedia content delivery within the digital home environment. Ubicom offers optimized system-level solutions tailored for original equipment manufacturers (OEMs) across a diverse range of products, including wireless routers, access points, VoIP gateways, and streaming media devices. Their innovative multithreaded processor design and real-time operating system, combined with application-level solutions, aim to deliver a high-quality user experience characterized by exceptional ease of use.

Excess Bandwidth

Series B in 2000
Excess Bandwidth Corp. specializes in the development of algorithms and high-performance integrated circuits designed for high-bandwidth communications. The company focuses on creating symmetrical digital subscriber line physical-layer chips and mixed signal semiconductors that facilitate the connection of Internet voice and data services across multiple devices using copper twisted-pair wires. Established in 1998, Excess Bandwidth is recognized for being the first to develop technology that complies with the G.shdsl/HDSL2 high-speed symmetric DSL specifications set by international standards bodies, allowing efficient transmission of high-speed voice and data over a single pair of wires. As a privately held entity, the company is funded through venture capital.

Bevocal

Series B in 2000
BeVocal, Inc. is a provider of hosted customer automated self-service solutions, primarily serving communications service providers and enterprise call centers. Founded in 1999 and headquartered in Mountain View, California, the company specializes in developing speech-based customer care solutions tailored for the mobile communications market. BeVocal offers an integrated suite of voice and data applications, including speech-enabled call routing and destination applications that facilitate automated service interactions. Its self-service systems empower users to navigate customer service processes independently, thereby reducing the need for live agents. The solutions provided by BeVocal enhance customer satisfaction and drive revenue growth by enabling efficient customer service activation, care, and fulfillment. In 2007, BeVocal became a subsidiary of Nuance Communications, Inc.

NewPort Communications

Series B in 2000
NewPort Communications is a supplier of mixed-signal integrated circuits for the high-speed communications market. The Company's business objective is to develop highly integrated single-chip solutions that enable economic scaling of the existing bandwidth capacity of today's fiber-based networks.

Avanex

Series D in 1999
Avanex was an optical components company designing and manufacturing optical components primarily for fiber-optic communication networks.

Tasman Networks

Venture Round in 1999
Tasman Networks is a manufacturer of Multi-service edge router.

QuantumShift Communications

Series B in 1999
A fundamental shift has occurred in communications services. The change affects a company's ability to grow. It impacts revenues and profitability. It determines how well an enterprise can serve its customers, work with its partners, support its employees. Yet, surprisingly, it is often overlooked by top executives. Quite simply, communications services have become mission critical. Voice, data, cellular, local, long distance, Internet access, DSL, VPN, calling cards, PBX, voice mail, unified messaging, network management, broadband access – these services are the lifeblood of any enterprise that wants to tackle global markets, innovate at Internet speed, and engage in the continuous transformation that is demanded by today's competitive environment. Unfortunately, the process of procuring and managing them has become increasingly chaotic and costly. Communications has become the third largest operational expense in mid-size companies. Even at that expense, much of it remains hidden, scattered throughout the enterprise, distributed among the business units, duplicated by mergers and acquisitions. Communications managers find themselves inundated with a mind-numbing array of service options, overwhelmed with literally boxes of bills, and continually asking for more headcount. Managing these multiple vendors diverts critical resources away from core business initiatives. Billing errors reduce funding for research, product development, marketing, and sales. Outages and downtime undermine relationships with customers and partners. With so much at stake, a comprehensive, single-source solution is needed for procuring and managing communications services.

Wavesplitter

Venture Round in 1999
WaveSplitter Technologies, Inc. specializes in the development, manufacturing, and distribution of both active and passive optical components for broadband networks catering to enterprise and residential markets. The company offers a diverse product range, including passive pump laser combiners, isolators, wavelength division multiplexers, and transceivers designed for various network types such as LANs, metro, access, and long haul. Additionally, it provides HDMI optical extender cables, fused fiber and planar light guide circuit products, and various optical modules. WaveSplitter's offerings aim to enhance the performance and capacity of optical networks while reducing infrastructure costs for its customers. Founded in 1996 and originally known as Applied Fiber Optics, the company is headquartered in Fremont, California, with additional facilities in Taipei, Taiwan, and Shenzhen, China.

Clearwater Networks

Series A in 1999
Clearwater Networks (formerly XStream Logic) is developing the industry’s first single-processor packet processing solution capable of performing 7-layer packet processing at 10-Gigabit data rates. XStream’s family of network processors is targeted at solving the critical bottleneck in next-generation network infrastructure equipment: layers 4-7 packet processing. Edge and core routers, content-aware web switches, network attached storage devices, and other networking appliances all require the need to implement advanced services that are beyond the capability of existing semiconductor solutions. XStream ’s products are able to solve a wide variety of applications and advanced services using a simple, single-processor architecture that reduces system complexity and improves customers’ time to market.

Ubicom

Series B in 1999
Ubicom is a privately held company based in Sunnyvale, California, specializing in the development of communications and media processor (CMP) and software platforms. The company focuses on addressing the specific needs of real-time interactive applications and multimedia content delivery within the digital home environment. Ubicom offers optimized system-level solutions tailored for original equipment manufacturers (OEMs) across a diverse range of products, including wireless routers, access points, VoIP gateways, and streaming media devices. Their innovative multithreaded processor design and real-time operating system, combined with application-level solutions, aim to deliver a high-quality user experience characterized by exceptional ease of use.

Qtera

Series B in 1999
Qtera Corporation, founded in 1988 by Fahri Diner, is headquartered in Boca Raton, Florida. The company specializes in the development of photonic transport systems designed for telecommunication service providers, including both new IP-based carriers and long-distance carriers. Qtera's innovative systems enable a cost-effective approach to bandwidth by eliminating the necessity for opto-electronic regeneration in ultra-high-capacity backbones. This technology enhances the efficiency and scalability of communication networks, positioning Qtera as a key player in the telecommunications infrastructure sector.

PostX

Series A in 1999
PostX ensures the secure electronic delivery of information vital to business and customer relationships. PostX delivers significant cost savings and benefits from an increase in effective communications with employees, partners, and customers. They enable secure delivery via Email, the Web, and Wireless networks to your customers, partners and employees.

Calico Commerce

Debt Financing in 1998
Calico Commerce specializes in developing business software solutions for e-commerce, offering a range of products designed to facilitate online sales. Their suite includes tools like Calico Advisor, Calico Network Advisor, MarketMaker, Price Point, and Loyalty Builder, which assist companies in selling complex goods and services over the internet. Founded in 1994 and based in Burlingame, California, Calico Commerce serves various industries including telecommunications, financial services, retail, and manufacturing. Its eSales Suite supports businesses by guiding customers through the buying process across multiple selling channels, such as online platforms, resellers, and call centers, thereby enhancing sales efficiency.

Assured Access Technology

Series A in 1997
Assured Access Technology specializes in the development and manufacturing of networking equipment, focusing on solutions for carriers and service providers. The company offers a range of products, including multi-service access concentrators and network management systems, which facilitate both data and voice over IP (VoIP) services. Its LAN and WAN access technologies empower carriers and service providers to deliver a diverse portfolio of access solutions, enhancing the connectivity options available to their customers.

Packet Engines

Funding Round in 1997
Packet Engines is a developer and manufacturer specializing in Gigabit Ethernet and routing-switch technology. The company focuses on creating networking solutions, offering a range of products that include switches, hubs, and network interface cards. In addition to hardware, Packet Engines also provides intellectual property licenses related to its innovative networking systems. Through its products, the company aims to enhance network performance and reliability for users across various sectors.

Calico Commerce

Venture Round in 1997
Calico Commerce specializes in developing business software solutions for e-commerce, offering a range of products designed to facilitate online sales. Their suite includes tools like Calico Advisor, Calico Network Advisor, MarketMaker, Price Point, and Loyalty Builder, which assist companies in selling complex goods and services over the internet. Founded in 1994 and based in Burlingame, California, Calico Commerce serves various industries including telecommunications, financial services, retail, and manufacturing. Its eSales Suite supports businesses by guiding customers through the buying process across multiple selling channels, such as online platforms, resellers, and call centers, thereby enhancing sales efficiency.

Redback Networks

Seed Round in 1996
Redback Networks, Inc. specializes in advanced telecommunications networking equipment, catering to markets in North America, Europe, the Middle East, Africa, and Asia-Pacific. The company offers a range of products, including the SmartEdge service gateway, which integrates scalable edge routing, Ethernet aggregation, and subscriber management. Additionally, it provides SMS product families that allow service providers and carriers to manage broadband and dial-up subscribers through a unified platform, along with the NetOp policy manager for policy management across its product offerings. Redback Networks' solutions are designed to support service providers in developing Internet protocol-based broadband networks, facilitating high-speed access and services for both consumers and businesses. The company also engages in collaboration agreements with various industry organizations to enhance its offerings and contribute to the telecommunications sector.

Nuance Communications

Series C in 1995
Nuance Communications, Inc. specializes in conversational and cognitive artificial intelligence solutions that enhance everyday work and life by amplifying human intelligence. The company provides a range of technologies that understand, analyze, and respond to user inputs, thereby increasing productivity and security. Its Healthcare segment focuses on improving clinical documentation and patient record management through innovations like cloud-based speech solutions and voice-enabled applications. In the Enterprise segment, Nuance delivers automated customer engagement solutions utilizing speech and natural language understanding across various channels, including voice, mobile, web, and messaging. The company also offers services such as voicemail transcription. With a diverse clientele in sectors such as healthcare, financial services, telecommunications, government, and retail, Nuance Communications has established itself as a leader in the field, leveraging decades of expertise in AI and customer engagement. Founded in 1992 and headquartered in Burlington, Massachusetts, the company was formerly known as ScanSoft, Inc. before rebranding in 2005.

Crescendo Communications

Venture Round in 1991
Crescendo Communications, Inc. provides FDDI-speed LAN over unshielded copper twisted pair wires.

Cypress Semiconductor

Venture Round in 1983
Cypress Semiconductor Corporation is a global leader in designing, developing, manufacturing, and marketing embedded system solutions with a focus on high-performance, mixed-signal, and programmable technologies. The company operates in two primary segments: the Microcontroller and Connectivity Division, which offers a wide range of solutions including microcontrollers, wireless connectivity, USB controllers, and capacitive sensing technologies; and the Memory Products Division, which specializes in various memory products such as NOR flash memories, SRAM, and specialty memory devices. Cypress Semiconductor serves diverse markets including automotive, industrial, consumer electronics, telecommunications, and medical applications. Its products facilitate the creation of innovative, differentiated electronic systems, helping engineers to accelerate their time to market. Cypress sells its offerings through a combination of direct sales, distributors, and manufacturing representative firms. Founded in 1982 and headquartered in San Jose, California, Cypress Semiconductor Corporation is a subsidiary of Infineon Technologies AG.

3Com

Venture Round in 1982
3Com Corporation was a digital electronics manufacturer recognized for its innovative computer networking products. Founded in 1979 by Robert Metcalfe and Howard Charney, the company focused on Ethernet technology, which Metcalfe co-invented. 3Com's product offerings included network interface cards, switches, routers, wireless access points, IP voice systems, and security solutions such as intrusion prevention and network access control systems. The company expanded its market presence significantly after acquiring full ownership of H3C Technologies Co., Limited in 2007, which enhanced its reach in China and contributed to its networking market share across Europe, Asia, and the Americas. The company marketed its products under the brands 3Com, H3C, and TippingPoint. In 2010, 3Com was acquired by Hewlett-Packard, resulting in its dissolution as a separate entity.
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