Accel

Accel, established in 1983, is a prominent venture capital firm headquartered in Palo Alto, California, with additional offices in San Francisco, London, and Bangalore. The firm specializes in investing in early and growth-stage technology startups, focusing on sectors such as software, cloud technologies, consumer services, enterprise, healthcare, fintech, and security. Accel's portfolio includes notable companies like Atlassian, Facebook, Slack, and Spotify, reflecting its ability to identify and support entrepreneurs building businesses that drive next-generation industries.

Casey Aylward

Partner

Nir Blumberger

Venture Partner

Luca Bocchio

Partner

Katie Brown

Investor

Miles Clements

Partner

Adrian Colyer

Venture Partner

Ben Dooley

CFO

Peter Doyle

Investor

Christine Esserman

Partner

Ben Fletcher

Partner

Sameer Gandhi

Partner

Martin Gibson

Technology Investor

Graham Hutson

Investor

Sara Ittelson

Partner

Myrel Iturrey

Investor

Dinesh Katiyar

Partner

Richard Kotite

Vice President

Gagan Kumar

General Partner

John Locke

Partner

Zhenya Loginov

Partner

Steve Loughlin

Partner

Arun Mathew

Partner

Jonathan Mendelson

Investor

Gonzalo Mocorrea

Investor

Vasant Natarajan

Partner

Vas Natarajan

Partner

Nate Niparko

Partner

Maya Noeth

Partner

Rachit Parekh

Principal

Vijaysai Patnaik

Associate

Varun Purandare

Principal and Investor

Ben Quazzo

Investor, Venture and Growth

Rafael Quintanilla Loeillet

Early-Stage Investor

Tim Rawlinson

Investor - Growth

Matthew Robinson

Investor

Sagar Sanghvi

Partner

Tracy Sedlock

Chief Operating Partner

Jess Segal

Partner, Investor Relation

Ajay Sethi

Venture Partner

Manasi Shah

Vice President and Investment Team Member

Karan Shah

Investor

Sarthak Singh

Investor

Robert Sternberg

Investor

Diksha Sundarka

Investor

Prayank Swaroop

Partner

Charles Tananbaum

Investor

Humza Tariq

Investor

Jonathan Turner

Partner

Cecilia Wang

Vice President

Ivan Zhou

Partner

Past deals in Network Security

Tailscale

Series C in 2025
Tailscale Inc. is a company that develops corporate virtual private network (VPN) software aimed at enhancing network security for teams of all sizes. Founded in 2019 and based in Toronto, Canada, Tailscale leverages the WireGuard protocol to simplify the creation, configuration, and maintenance of private networks. It connects authorized devices in a peer-to-peer mesh, which minimizes latency and enhances reliability. Tailscale's solution integrates seamlessly with existing identity providers, such as GSuite and Office365, allowing users to access secure networks without the traditional complexities of VPN setup. The company caters to a diverse clientele, including hobbyists, network administrators, banks, hospitals, and startups, by offering a cost-effective, reliable, and user-friendly approach to network security.

Vega Security

Series A in 2025
Vega Security is a cybersecurity firm specializing in detecting cyberattacks. Operating discreetly, it offers services to help businesses identify and respond to potential threats in their digital environments.

Tines

Series C in 2025
Tines Security Services Ltd. is a cyber security automation company based in Dublin, Ireland, founded in 2018. It specializes in a no-code workflow automation platform designed specifically for security teams, enabling them to construct, execute, and monitor workflows with ease. The platform features a Story Library that includes pre-built templates and customizable workflows, allowing users to integrate their existing software applications without the need for additional integrations, apps, or custom coding. Tines also offers a free Community Edition for users to explore its functionalities. Through its cloud-based and on-premise solutions, the company aims to streamline remediation processes and enhance operational efficiency for businesses of all sizes.

Corelight

Series E in 2024
Corelight, Inc. is a provider of network visibility solutions aimed at enhancing cybersecurity for enterprises, government entities, and educational institutions. Founded in 2013 and headquartered in San Francisco, California, the company develops a suite of products that includes Corelight sensors and a fleet management system. Its flagship offering is based on Bro, an open-source network analysis framework that delivers actionable, real-time data, enabling security professionals to comprehensively understand network traffic and effectively detect and mitigate cyber threats. In addition to its headquarters, Corelight maintains offices in Santa Clara, California, and Columbus, Ohio, further supporting its commitment to improving network security across various sectors.

Tines

Series B in 2024
Tines Security Services Ltd. is a cyber security automation company based in Dublin, Ireland, founded in 2018. It specializes in a no-code workflow automation platform designed specifically for security teams, enabling them to construct, execute, and monitor workflows with ease. The platform features a Story Library that includes pre-built templates and customizable workflows, allowing users to integrate their existing software applications without the need for additional integrations, apps, or custom coding. Tines also offers a free Community Edition for users to explore its functionalities. Through its cloud-based and on-premise solutions, the company aims to streamline remediation processes and enhance operational efficiency for businesses of all sizes.

Akto

Seed Round in 2023
Akto is a company that specializes in API security, providing a platform designed to secure both managed and unmanaged application programming interfaces from potential threats. The company's open-source platform enables businesses to quickly discover APIs, run tests, and identify weaknesses in their business logic. By focusing on real-time protection, Akto helps organizations detect vulnerabilities and misconfigurations before they can be exploited. The platform also offers automated security testing for APIs, allowing businesses to address runtime threats effectively and ensure the integrity of their applications.

Akto

Seed Round in 2022
Akto is a company that specializes in API security, providing a platform designed to secure both managed and unmanaged application programming interfaces from potential threats. The company's open-source platform enables businesses to quickly discover APIs, run tests, and identify weaknesses in their business logic. By focusing on real-time protection, Akto helps organizations detect vulnerabilities and misconfigurations before they can be exploited. The platform also offers automated security testing for APIs, allowing businesses to address runtime threats effectively and ensure the integrity of their applications.

Tines

Series B in 2022
Tines Security Services Ltd. is a cyber security automation company based in Dublin, Ireland, founded in 2018. It specializes in a no-code workflow automation platform designed specifically for security teams, enabling them to construct, execute, and monitor workflows with ease. The platform features a Story Library that includes pre-built templates and customizable workflows, allowing users to integrate their existing software applications without the need for additional integrations, apps, or custom coding. Tines also offers a free Community Edition for users to explore its functionalities. Through its cloud-based and on-premise solutions, the company aims to streamline remediation processes and enhance operational efficiency for businesses of all sizes.

Acalvio

Series D in 2022
Acalvio is a cybersecurity company based in Silicon Valley, specializing in deception technology to protect against advanced security threats. Their flagship product, the ShadowPlex Cyber Deception Platform, leverages 25 issued patents in autonomous deception and advanced AI to offer solutions such as Identity Threat Detection and Response (ITDR), Advanced Threat Detection, OT Security, Zero Trust, Active Directory Protection, and Ransomware Protection. Acalvio's technology is designed to reduce the time attackers spend undetected within a network by enabling early threat detection and enhancing the efficiency of security operations centers through sophisticated investigation and active threat-hunting capabilities. The company serves Fortune 500 enterprises and government agencies, with deployment options including on-premises, cloud, and managed service providers.

Tailscale

Series B in 2022
Tailscale Inc. is a company that develops corporate virtual private network (VPN) software aimed at enhancing network security for teams of all sizes. Founded in 2019 and based in Toronto, Canada, Tailscale leverages the WireGuard protocol to simplify the creation, configuration, and maintenance of private networks. It connects authorized devices in a peer-to-peer mesh, which minimizes latency and enhances reliability. Tailscale's solution integrates seamlessly with existing identity providers, such as GSuite and Office365, allowing users to access secure networks without the traditional complexities of VPN setup. The company caters to a diverse clientele, including hobbyists, network administrators, banks, hospitals, and startups, by offering a cost-effective, reliable, and user-friendly approach to network security.

BizCarta India

Venture Round in 2022
BizCarta India provides cyber security consulting services. They also provide identity and access management, enterprise risk and compliance management, application security, network security, and endpoint security services.

Sysdig

Series F in 2021
Sysdig, Inc. is a company specializing in network and application monitoring software solutions that address the challenges of managing cloud-based application delivery infrastructures. Founded in 2013 and headquartered in San Francisco, California, Sysdig offers a cloud-native security and monitoring platform designed for development and operations teams, as well as security professionals. The platform includes a suite of tools, such as a runtime threat detection engine and integrations for Prometheus monitoring, enabling organizations to secure and monitor their containerized applications effectively. Sysdig leverages a unique AI architecture and open-source technology to provide real-time insights, helping teams detect risks and prioritize vulnerabilities, misconfigurations, and threats. With data centers in Oregon and Frankfurt, as well as a subsidiary in Japan, Sysdig empowers enterprises to navigate the complexities of modern cloud-native infrastructures while maintaining application performance, security, and compliance.

Tines

Series B in 2021
Tines Security Services Ltd. is a cyber security automation company based in Dublin, Ireland, founded in 2018. It specializes in a no-code workflow automation platform designed specifically for security teams, enabling them to construct, execute, and monitor workflows with ease. The platform features a Story Library that includes pre-built templates and customizable workflows, allowing users to integrate their existing software applications without the need for additional integrations, apps, or custom coding. Tines also offers a free Community Edition for users to explore its functionalities. Through its cloud-based and on-premise solutions, the company aims to streamline remediation processes and enhance operational efficiency for businesses of all sizes.

Tailscale

Series A in 2020
Tailscale Inc. is a company that develops corporate virtual private network (VPN) software aimed at enhancing network security for teams of all sizes. Founded in 2019 and based in Toronto, Canada, Tailscale leverages the WireGuard protocol to simplify the creation, configuration, and maintenance of private networks. It connects authorized devices in a peer-to-peer mesh, which minimizes latency and enhances reliability. Tailscale's solution integrates seamlessly with existing identity providers, such as GSuite and Office365, allowing users to access secure networks without the traditional complexities of VPN setup. The company caters to a diverse clientele, including hobbyists, network administrators, banks, hospitals, and startups, by offering a cost-effective, reliable, and user-friendly approach to network security.

Sysdig

Series E in 2020
Sysdig, Inc. is a company specializing in network and application monitoring software solutions that address the challenges of managing cloud-based application delivery infrastructures. Founded in 2013 and headquartered in San Francisco, California, Sysdig offers a cloud-native security and monitoring platform designed for development and operations teams, as well as security professionals. The platform includes a suite of tools, such as a runtime threat detection engine and integrations for Prometheus monitoring, enabling organizations to secure and monitor their containerized applications effectively. Sysdig leverages a unique AI architecture and open-source technology to provide real-time insights, helping teams detect risks and prioritize vulnerabilities, misconfigurations, and threats. With data centers in Oregon and Frankfurt, as well as a subsidiary in Japan, Sysdig empowers enterprises to navigate the complexities of modern cloud-native infrastructures while maintaining application performance, security, and compliance.

Tines

Series A in 2019
Tines Security Services Ltd. is a cyber security automation company based in Dublin, Ireland, founded in 2018. It specializes in a no-code workflow automation platform designed specifically for security teams, enabling them to construct, execute, and monitor workflows with ease. The platform features a Story Library that includes pre-built templates and customizable workflows, allowing users to integrate their existing software applications without the need for additional integrations, apps, or custom coding. Tines also offers a free Community Edition for users to explore its functionalities. Through its cloud-based and on-premise solutions, the company aims to streamline remediation processes and enhance operational efficiency for businesses of all sizes.

Corelight

Series C in 2019
Corelight, Inc. is a provider of network visibility solutions aimed at enhancing cybersecurity for enterprises, government entities, and educational institutions. Founded in 2013 and headquartered in San Francisco, California, the company develops a suite of products that includes Corelight sensors and a fleet management system. Its flagship offering is based on Bro, an open-source network analysis framework that delivers actionable, real-time data, enabling security professionals to comprehensively understand network traffic and effectively detect and mitigate cyber threats. In addition to its headquarters, Corelight maintains offices in Santa Clara, California, and Columbus, Ohio, further supporting its commitment to improving network security across various sectors.

Acalvio

Series C in 2019
Acalvio is a cybersecurity company based in Silicon Valley, specializing in deception technology to protect against advanced security threats. Their flagship product, the ShadowPlex Cyber Deception Platform, leverages 25 issued patents in autonomous deception and advanced AI to offer solutions such as Identity Threat Detection and Response (ITDR), Advanced Threat Detection, OT Security, Zero Trust, Active Directory Protection, and Ransomware Protection. Acalvio's technology is designed to reduce the time attackers spend undetected within a network by enabling early threat detection and enhancing the efficiency of security operations centers through sophisticated investigation and active threat-hunting capabilities. The company serves Fortune 500 enterprises and government agencies, with deployment options including on-premises, cloud, and managed service providers.

Sysdig

Series D in 2018
Sysdig, Inc. is a company specializing in network and application monitoring software solutions that address the challenges of managing cloud-based application delivery infrastructures. Founded in 2013 and headquartered in San Francisco, California, Sysdig offers a cloud-native security and monitoring platform designed for development and operations teams, as well as security professionals. The platform includes a suite of tools, such as a runtime threat detection engine and integrations for Prometheus monitoring, enabling organizations to secure and monitor their containerized applications effectively. Sysdig leverages a unique AI architecture and open-source technology to provide real-time insights, helping teams detect risks and prioritize vulnerabilities, misconfigurations, and threats. With data centers in Oregon and Frankfurt, as well as a subsidiary in Japan, Sysdig empowers enterprises to navigate the complexities of modern cloud-native infrastructures while maintaining application performance, security, and compliance.

Pango

Venture Round in 2018
Pango Inc. is a global privacy and security company that specializes in developing Internet security and privacy platforms for users, advertisers, and agencies. The company's product offerings include Hotspot Shield, recognized as one of the fastest VPNs, which ensures secure, private, and unrestricted access to the Internet while utilizing advanced encryption technology to protect users from malware. Pango also offers additional applications like Kaboom, which allows users to share timed messages and photos on social networks, and the Privacy Applock, which secures individual applications with customizable password protection. As a subsidiary of Aura Company, Pango's mission is to provide comprehensive digital consumer security solutions that protect individuals, families, and businesses from various online threats. Founded in 2003 and based in Menlo Park, California, Pango continues to focus on innovation and enhancing user security and privacy.

Sysdig

Series C in 2017
Sysdig, Inc. is a company specializing in network and application monitoring software solutions that address the challenges of managing cloud-based application delivery infrastructures. Founded in 2013 and headquartered in San Francisco, California, Sysdig offers a cloud-native security and monitoring platform designed for development and operations teams, as well as security professionals. The platform includes a suite of tools, such as a runtime threat detection engine and integrations for Prometheus monitoring, enabling organizations to secure and monitor their containerized applications effectively. Sysdig leverages a unique AI architecture and open-source technology to provide real-time insights, helping teams detect risks and prioritize vulnerabilities, misconfigurations, and threats. With data centers in Oregon and Frankfurt, as well as a subsidiary in Japan, Sysdig empowers enterprises to navigate the complexities of modern cloud-native infrastructures while maintaining application performance, security, and compliance.

Corelight

Series A in 2017
Corelight, Inc. is a provider of network visibility solutions aimed at enhancing cybersecurity for enterprises, government entities, and educational institutions. Founded in 2013 and headquartered in San Francisco, California, the company develops a suite of products that includes Corelight sensors and a fleet management system. Its flagship offering is based on Bro, an open-source network analysis framework that delivers actionable, real-time data, enabling security professionals to comprehensively understand network traffic and effectively detect and mitigate cyber threats. In addition to its headquarters, Corelight maintains offices in Santa Clara, California, and Columbus, Ohio, further supporting its commitment to improving network security across various sectors.

Sysdig

Series B in 2016
Sysdig, Inc. is a company specializing in network and application monitoring software solutions that address the challenges of managing cloud-based application delivery infrastructures. Founded in 2013 and headquartered in San Francisco, California, Sysdig offers a cloud-native security and monitoring platform designed for development and operations teams, as well as security professionals. The platform includes a suite of tools, such as a runtime threat detection engine and integrations for Prometheus monitoring, enabling organizations to secure and monitor their containerized applications effectively. Sysdig leverages a unique AI architecture and open-source technology to provide real-time insights, helping teams detect risks and prioritize vulnerabilities, misconfigurations, and threats. With data centers in Oregon and Frankfurt, as well as a subsidiary in Japan, Sysdig empowers enterprises to navigate the complexities of modern cloud-native infrastructures while maintaining application performance, security, and compliance.

Acalvio

Series A in 2015
Acalvio is a cybersecurity company based in Silicon Valley, specializing in deception technology to protect against advanced security threats. Their flagship product, the ShadowPlex Cyber Deception Platform, leverages 25 issued patents in autonomous deception and advanced AI to offer solutions such as Identity Threat Detection and Response (ITDR), Advanced Threat Detection, OT Security, Zero Trust, Active Directory Protection, and Ransomware Protection. Acalvio's technology is designed to reduce the time attackers spend undetected within a network by enabling early threat detection and enhancing the efficiency of security operations centers through sophisticated investigation and active threat-hunting capabilities. The company serves Fortune 500 enterprises and government agencies, with deployment options including on-premises, cloud, and managed service providers.

Sysdig

Series A in 2015
Sysdig, Inc. is a company specializing in network and application monitoring software solutions that address the challenges of managing cloud-based application delivery infrastructures. Founded in 2013 and headquartered in San Francisco, California, Sysdig offers a cloud-native security and monitoring platform designed for development and operations teams, as well as security professionals. The platform includes a suite of tools, such as a runtime threat detection engine and integrations for Prometheus monitoring, enabling organizations to secure and monitor their containerized applications effectively. Sysdig leverages a unique AI architecture and open-source technology to provide real-time insights, helping teams detect risks and prioritize vulnerabilities, misconfigurations, and threats. With data centers in Oregon and Frankfurt, as well as a subsidiary in Japan, Sysdig empowers enterprises to navigate the complexities of modern cloud-native infrastructures while maintaining application performance, security, and compliance.

Aorato

Series A in 2014
Aorato is a cybersecurity company that specializes in protecting organizations' Active Directory environments through advanced behavioral analysis. Its Directory Services Application Firewall (DAF) leverages the central role of Active Directory to safeguard against sophisticated targeted attacks by automatically learning, profiling, and predicting the behavior of various entities, including users, devices, and servers. Unlike traditional security measures that focus solely on privileged accounts, Aorato's approach emphasizes the need to monitor all types of entities within the network. DAF effectively identifies suspicious activities while remaining non-intrusive and transparent to the existing Active Directory infrastructure, providing a comprehensive layer of protection tailored to the unique behavioral context of the organization.

Impermium

Seed Round in 2011
Impermium is a cybersecurity technology startup that specializes in protecting online platforms from cybercrime. The company offers a risk-evaluation platform designed to monitor the web in real-time, effectively addressing issues such as user-generated spam, account hacking, and fraudulent interactions. With a focus on enhancing account management, Impermium successfully identifies fraudulent registrations, compromised logins, and risky transactions. Its advanced technology employs a combination of machine learning, statistical anomaly detection, and a proprietary database of known malicious actors, enabling it to stop fraudulent user account registrations in real-time. Over its three-year history, Impermium has protected more than 1.5 million websites and processed over 8 billion transactions, serving many of the largest consumer Internet companies.

Altor Networks

Series B in 2010
Altor Networks specializes in providing virtualization security solutions that enhance the security of virtualized environments, particularly in data centers and internal clouds. The company's flagship product, the Altor VF virtual firewall, delivers granular control and visibility over virtual network traffic, significantly improving the security posture of virtual servers while minimizing administrative burdens. This technology is designed to support multiple virtualization platforms, allowing enterprises to maintain flexibility in their technology choices. Key features of Altor's solutions include the enforcement of rule-based security policies on individual or groups of virtual machines, protection of virtual machines during migration events without disrupting connections, and the ability to monitor traffic for intrusion detection purposes. By automatically applying default security policies to new or rogue virtual machines, Altor Networks empowers organizations to safeguard their virtualized networks effectively against potential threats.

ForeScout Technologies

Series E in 2008
ForeScout Technologies is a leader in providing network access control and policy compliance management solutions, focusing on enhancing security through visibility. The company specializes in agentless identification and management of traditional and Internet of Things (IoT) devices as they connect to networks. By integrating its platform with existing security tools, ForeScout enables Global 2000 enterprises and government agencies to improve incident response and streamline workflows. Its offerings assist various industries, including healthcare, financial services, and utilities, by accurately classifying risks, identifying anomalies, and promptly addressing cyber threats while ensuring the continuity of critical business operations. The company's technology plays a crucial role in transforming the security landscape by making previously hidden devices visible and manageable.

Mu Dynamics

Series C in 2008
Mu Dynamics is a provider of proactive service assurance solutions aimed at network operators, product suppliers, government agencies, and network vendors. The company focuses on enhancing the quality, reliability, and robustness of networks, enabling operators to minimize downtime and maintain revenue-critical next-generation IP services. Its flagship offering, the Service Analyzer, serves as a comprehensive platform that identifies vulnerabilities within IP-based applications and networks. This tool generates actionable remediation information to address identified weaknesses and verifies the effectiveness of implemented fixes through an integrated regression database. By addressing issues proactively, Mu Dynamics helps clients reduce customer churn and avoid the costs associated with service interruptions.

Imperva

Series D in 2008
Imperva, Inc. is a cybersecurity company based in Redwood Shores, California, that specializes in protecting critical business data and applications across cloud and on-premises environments. Founded in 2002, Imperva develops a range of security solutions, including its SecureSphere product line, which offers database, file, and web application security. The company’s services also include Incapsula, which provides cloud-based website security and distributed denial of service protection, as well as ThreatRadar for crowdsourced security intelligence. Additionally, CounterBreach safeguards enterprise data against loss from compromised users, and Imperva Camouflage Data Masking allows for the secure use of sensitive information in development and testing. Imperva serves various sectors, including finance, healthcare, retail, and telecommunications, through a network of distributors and resellers, while also offering ongoing support and professional services.

Altor Networks

Series A in 2008
Altor Networks specializes in providing virtualization security solutions that enhance the security of virtualized environments, particularly in data centers and internal clouds. The company's flagship product, the Altor VF virtual firewall, delivers granular control and visibility over virtual network traffic, significantly improving the security posture of virtual servers while minimizing administrative burdens. This technology is designed to support multiple virtualization platforms, allowing enterprises to maintain flexibility in their technology choices. Key features of Altor's solutions include the enforcement of rule-based security policies on individual or groups of virtual machines, protection of virtual machines during migration events without disrupting connections, and the ability to monitor traffic for intrusion detection purposes. By automatically applying default security policies to new or rogue virtual machines, Altor Networks empowers organizations to safeguard their virtualized networks effectively against potential threats.

ForeScout Technologies

Series D in 2007
ForeScout Technologies is a leader in providing network access control and policy compliance management solutions, focusing on enhancing security through visibility. The company specializes in agentless identification and management of traditional and Internet of Things (IoT) devices as they connect to networks. By integrating its platform with existing security tools, ForeScout enables Global 2000 enterprises and government agencies to improve incident response and streamline workflows. Its offerings assist various industries, including healthcare, financial services, and utilities, by accurately classifying risks, identifying anomalies, and promptly addressing cyber threats while ensuring the continuity of critical business operations. The company's technology plays a crucial role in transforming the security landscape by making previously hidden devices visible and manageable.

ConSentry Networks

Series E in 2007
ConSentry Networks is leading the delivery of intelligent control. Customers around the globe have adopted their intelligent control, enabling them to capitalize on today's new business practices including using contractors, outsourcing and offshoring, and more rapidly establishing working partnerships. ConSentry Networks, Inc. was founded in 2003 and is based in Milpitas, California. The company has received funding from Accel Partners, DAG Ventures, INVESCO Private Capital, and Translink Capital.

Trapeze Networks

Series D in 2006
Trapeze Networks is a provider of wireless local area network (WLAN) solutions designed to enhance mobility for the enterprise workforce. The company specializes in delivering robust and scalable WLAN infrastructure that ensures high levels of reliability, performance, security, and management for demanding mobile applications, including data, voice, video, and real-time location services. Trapeze Networks offers innovative systems that address the limitations of traditional WLANs through advanced switching technology, integrating both centralized and distributed data forwarding. This enables businesses to optimize their daily operations and meet the evolving needs of a mobile-centric environment.

ConSentry Networks

Series D in 2006
ConSentry Networks is leading the delivery of intelligent control. Customers around the globe have adopted their intelligent control, enabling them to capitalize on today's new business practices including using contractors, outsourcing and offshoring, and more rapidly establishing working partnerships. ConSentry Networks, Inc. was founded in 2003 and is based in Milpitas, California. The company has received funding from Accel Partners, DAG Ventures, INVESCO Private Capital, and Translink Capital.

Mu Dynamics

Series B in 2006
Mu Dynamics is a provider of proactive service assurance solutions aimed at network operators, product suppliers, government agencies, and network vendors. The company focuses on enhancing the quality, reliability, and robustness of networks, enabling operators to minimize downtime and maintain revenue-critical next-generation IP services. Its flagship offering, the Service Analyzer, serves as a comprehensive platform that identifies vulnerabilities within IP-based applications and networks. This tool generates actionable remediation information to address identified weaknesses and verifies the effectiveness of implemented fixes through an integrated regression database. By addressing issues proactively, Mu Dynamics helps clients reduce customer churn and avoid the costs associated with service interruptions.

Imperva

Series C in 2006
Imperva, Inc. is a cybersecurity company based in Redwood Shores, California, that specializes in protecting critical business data and applications across cloud and on-premises environments. Founded in 2002, Imperva develops a range of security solutions, including its SecureSphere product line, which offers database, file, and web application security. The company’s services also include Incapsula, which provides cloud-based website security and distributed denial of service protection, as well as ThreatRadar for crowdsourced security intelligence. Additionally, CounterBreach safeguards enterprise data against loss from compromised users, and Imperva Camouflage Data Masking allows for the secure use of sensitive information in development and testing. Imperva serves various sectors, including finance, healthcare, retail, and telecommunications, through a network of distributors and resellers, while also offering ongoing support and professional services.

Reactivity

Venture Round in 2006
Reactivity was a technology company that specialized in securing, accelerating, and managing XML and Web service environments for enterprises. Founded in 1998 and based in Belmont, California, the company developed various products, including XML Infrastructure appliances that integrated hardware with an XML operating system. Its offerings included a Manager tool that allowed professionals to define policies and monitor compliance, Gateway-D, a desktop solution for developers and testers, and Gatekeeper, which provided security for XML Web services. Reactivity's innovative solutions aimed to enhance the reliability and performance of XML-based applications. In 2007, the company was acquired by Cisco.

ForeScout Technologies

Series D in 2005
ForeScout Technologies is a leader in providing network access control and policy compliance management solutions, focusing on enhancing security through visibility. The company specializes in agentless identification and management of traditional and Internet of Things (IoT) devices as they connect to networks. By integrating its platform with existing security tools, ForeScout enables Global 2000 enterprises and government agencies to improve incident response and streamline workflows. Its offerings assist various industries, including healthcare, financial services, and utilities, by accurately classifying risks, identifying anomalies, and promptly addressing cyber threats while ensuring the continuity of critical business operations. The company's technology plays a crucial role in transforming the security landscape by making previously hidden devices visible and manageable.

ConSentry Networks

Series C in 2005
ConSentry Networks is leading the delivery of intelligent control. Customers around the globe have adopted their intelligent control, enabling them to capitalize on today's new business practices including using contractors, outsourcing and offshoring, and more rapidly establishing working partnerships. ConSentry Networks, Inc. was founded in 2003 and is based in Milpitas, California. The company has received funding from Accel Partners, DAG Ventures, INVESCO Private Capital, and Translink Capital.

Trapeze Networks

Series C in 2005
Trapeze Networks is a provider of wireless local area network (WLAN) solutions designed to enhance mobility for the enterprise workforce. The company specializes in delivering robust and scalable WLAN infrastructure that ensures high levels of reliability, performance, security, and management for demanding mobile applications, including data, voice, video, and real-time location services. Trapeze Networks offers innovative systems that address the limitations of traditional WLANs through advanced switching technology, integrating both centralized and distributed data forwarding. This enables businesses to optimize their daily operations and meet the evolving needs of a mobile-centric environment.

Trapeze Networks

Series C in 2005
Trapeze Networks is a provider of wireless local area network (WLAN) solutions designed to enhance mobility for the enterprise workforce. The company specializes in delivering robust and scalable WLAN infrastructure that ensures high levels of reliability, performance, security, and management for demanding mobile applications, including data, voice, video, and real-time location services. Trapeze Networks offers innovative systems that address the limitations of traditional WLANs through advanced switching technology, integrating both centralized and distributed data forwarding. This enables businesses to optimize their daily operations and meet the evolving needs of a mobile-centric environment.

Webroot

Series A in 2005
Webroot, founded in 1997 and headquartered in Broomfield, Colorado, specializes in cloud-based Internet threat detection solutions. The company offers real-time protection against viruses, malware, phishing attacks, and identity theft for consumers, businesses, and enterprises. Webroot's key products include the SecureAnywhere suite for endpoints and networks, and the BrightCloud security intelligence platform, which provides services like web classification, anti-phishing, and mobile security. The company also offers Webroot WiFi Security, a VPN service, and BrightCloud research and analysis services. Webroot serves network security providers, mobile providers, and enterprise customers worldwide, with notable clients including Cisco and F5 Networks. Since March 2019, Webroot operates as a subsidiary of Carbonite, Inc.

Mu Dynamics

Series A in 2005
Mu Dynamics is a provider of proactive service assurance solutions aimed at network operators, product suppliers, government agencies, and network vendors. The company focuses on enhancing the quality, reliability, and robustness of networks, enabling operators to minimize downtime and maintain revenue-critical next-generation IP services. Its flagship offering, the Service Analyzer, serves as a comprehensive platform that identifies vulnerabilities within IP-based applications and networks. This tool generates actionable remediation information to address identified weaknesses and verifies the effectiveness of implemented fixes through an integrated regression database. By addressing issues proactively, Mu Dynamics helps clients reduce customer churn and avoid the costs associated with service interruptions.

Kagoor Networks

Series D in 2004
Kagoor Networks is a leading provider of session border control technology aimed at facilitating the delivery of Internet Protocol communications services. The company specializes in addressing the technical challenges that carriers typically encounter at the borders of Voice over Internet Protocol (VoIP) networks. With its extensive technical expertise, Kagoor offers a range of solutions that enhance interoperability, security, network address translation, bandwidth management, and service level assurance. Their flagship products include the VoiceFlow series of session border controllers, which are designed to meet the evolving needs of the telecommunications industry and ensure compliance with regulatory standards.

ConSentry Networks

Series B in 2004
ConSentry Networks is leading the delivery of intelligent control. Customers around the globe have adopted their intelligent control, enabling them to capitalize on today's new business practices including using contractors, outsourcing and offshoring, and more rapidly establishing working partnerships. ConSentry Networks, Inc. was founded in 2003 and is based in Milpitas, California. The company has received funding from Accel Partners, DAG Ventures, INVESCO Private Capital, and Translink Capital.

Raytheon BBN Technologies

Venture Round in 2004
Started in 1948 by MIT professors, BBN Technologies has churned out technologies ranging from packet switching (1969) to the first network email (1971) to the first router (1976). The legendary R&D organization changed hands several times, most recently being acquired by Raytheon on September 1, 2009, following a management-led buyout from Verizon five years earlier. With expertise spanning information security, speech and language processing, networking, distributed systems, and sensing and control systems, BBN scientists and engineers have amassed a substantial collection of innovations and patented solutions.

Reactivity

Venture Round in 2003
Reactivity was a technology company that specialized in securing, accelerating, and managing XML and Web service environments for enterprises. Founded in 1998 and based in Belmont, California, the company developed various products, including XML Infrastructure appliances that integrated hardware with an XML operating system. Its offerings included a Manager tool that allowed professionals to define policies and monitor compliance, Gateway-D, a desktop solution for developers and testers, and Gatekeeper, which provided security for XML Web services. Reactivity's innovative solutions aimed to enhance the reliability and performance of XML-based applications. In 2007, the company was acquired by Cisco.

Counterpane Internet Security

Series D in 2003
Counterpane delivers Managed Security Monitoring to some of the best-known corporations in e-commerce, finance, healthcare, hosting, insurance, manufacturing, pharmaceuticals, and transportation.

ForeScout Technologies

Series C in 2002
ForeScout Technologies is a leader in providing network access control and policy compliance management solutions, focusing on enhancing security through visibility. The company specializes in agentless identification and management of traditional and Internet of Things (IoT) devices as they connect to networks. By integrating its platform with existing security tools, ForeScout enables Global 2000 enterprises and government agencies to improve incident response and streamline workflows. Its offerings assist various industries, including healthcare, financial services, and utilities, by accurately classifying risks, identifying anomalies, and promptly addressing cyber threats while ensuring the continuity of critical business operations. The company's technology plays a crucial role in transforming the security landscape by making previously hidden devices visible and manageable.

ForeScout Technologies

Series B in 2001
ForeScout Technologies is a leader in providing network access control and policy compliance management solutions, focusing on enhancing security through visibility. The company specializes in agentless identification and management of traditional and Internet of Things (IoT) devices as they connect to networks. By integrating its platform with existing security tools, ForeScout enables Global 2000 enterprises and government agencies to improve incident response and streamline workflows. Its offerings assist various industries, including healthcare, financial services, and utilities, by accurately classifying risks, identifying anomalies, and promptly addressing cyber threats while ensuring the continuity of critical business operations. The company's technology plays a crucial role in transforming the security landscape by making previously hidden devices visible and manageable.

New Edge Networks

Private Equity Round in 2001
New Edge Networks is a national provider specializing in secure, multi-site managed data networks and dedicated internet access. The company primarily offers internet services through digital subscriber line (DSL) technology, catering to residences and businesses in small cities and semi-rural communities. In addition to DSL connections, New Edge Networks delivers services such as wide area networks, virtual private networks, and frame relay, ensuring reliable and efficient connectivity for its clients.

New Edge Networks

Series C in 2000
New Edge Networks is a national provider specializing in secure, multi-site managed data networks and dedicated internet access. The company primarily offers internet services through digital subscriber line (DSL) technology, catering to residences and businesses in small cities and semi-rural communities. In addition to DSL connections, New Edge Networks delivers services such as wide area networks, virtual private networks, and frame relay, ensuring reliable and efficient connectivity for its clients.

Counterpane Internet Security

Series B in 2000
Counterpane delivers Managed Security Monitoring to some of the best-known corporations in e-commerce, finance, healthcare, hosting, insurance, manufacturing, pharmaceuticals, and transportation.

New Edge Networks

Series B in 2000
New Edge Networks is a national provider specializing in secure, multi-site managed data networks and dedicated internet access. The company primarily offers internet services through digital subscriber line (DSL) technology, catering to residences and businesses in small cities and semi-rural communities. In addition to DSL connections, New Edge Networks delivers services such as wide area networks, virtual private networks, and frame relay, ensuring reliable and efficient connectivity for its clients.
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