Accel

Accel is a venture capital firm founded in 1983 and headquartered in Palo Alto, California, with additional offices in San Francisco, London, and Bangalore. The firm specializes in early and growth-stage investments, focusing on sectors such as cloud computing, software as a service (SaaS), consumer products, enterprise solutions, information technology, healthcare, fintech, security, media, and business services. Accel is dedicated to supporting a global community of entrepreneurs, identifying and backing those with the potential to drive the growth of next-generation industries. The firm's portfolio includes notable companies like Atlassian, Dropbox, and Facebook, showcasing its commitment to fostering innovation and growth in the technology landscape.

Pratik Agarwal

Principal

Radhika Ananth

Vice President and Investor

Casey Aylward

Partner

Mahendran Balachandran

Partner, India

Julien Bek

Principal

Luca Bocchio

Partner

Andrei Brasoveanu

Partner

Katie Brown

Investor

Abhinav Chaturvedi

Partner

Ethan Choi

Partner

Miles Clements

Partner

Adrian Colyer

Venture Partner

Kevin Comolli

Partner

Anand Daniel

Partner

Ben Dooley

CFO

Peter Doyle

Investor

Sameer Gandhi

Partner

Martin Gibson

Technology Investor

Graham Hutson

Investor

Sara Ittelson

Partner

Dinesh Katiyar

Partner

Shekhar Kirani

Partner, India

Richard Kotite

Vice President

Gagan Kumar

General Partner

Daniel Levine

Partner

Ping Li

Partner

John Locke

Partner

Zhenya Loginov

Partner

Arun Mathew

Partner

Jonathan Mendelson

Investor

Subrata Mitra

Founder

Gonzalo Mocorrea

Investor

Vasant Natarajan

Partner

Vas Natarajan

Partner

Harry Nelis

Partner

Nate Niparko

Partner

Rachit Parekh

Investor

Vijaysai Patnaik

Associate

Prashanth Prakash

Co-Founder and Partner, India

Varun Purandare

Principal and Investor

Ben Quazzo

Investor, Venture and Growth

Rafael Quintanilla Loeillet

Early-Stage Investor

Tim Rawlinson

Investor - Growth

Tracy Sedlock

Chief Operating Partner

Manasi Shah

Vice President and Investment Team Member

Sarthak Singh

Investor

Ryan Sweeney

General Partner

Charles Tananbaum

Investor

Humza Tariq

Investor

Jonathan Turner

Partner

Cecilia Wang

Vice President and Investor

Matt Weigand

Partner

Eric Wolford

Venture Partner

Ivan Zhou

Partner

Richard Wong

Partner

Bruce Golden

Partner

Steve Loughlin

Partner

Barath Shankar Subramanian

Senior Analyst

David Waltcher

Investor

Past deals in Open Source

Graphite

Series B in 2025
Graphite is a code review platform designed to enhance the efficiency of software development teams. It facilitates the creation and review of smaller pull requests, allowing engineers to work without interruptions and deliver updates more rapidly. The platform includes an open-source command-line interface (CLI) and a user-friendly dashboard that simplifies the process of submitting and managing code changes. By incorporating features such as stacked changes and an intuitive command system, Graphite aims to streamline code reviews and improve deployment practices. Additionally, it offers tools for metrics management and analytics integration, helping teams to recover quickly from any deployment issues. Graphite was developed to fill the gap left by traditional internal code review tools, focusing on supporting fast-paced engineering teams in achieving their goals effectively.

Dash0

Seed Round in 2024
Dash0 is an observability platform tailored for developers, founded in 2023 and based in New York City. It offers a unique OpenTelemetry Native solution that emphasizes granular, resource-centric monitoring, enabling real-time visibility into applications and infrastructure. The platform simplifies the configuration of open telemetry collectors through an intuitive visual editor, making data management effortless. Dash0’s integration with open standards, such as Perses, PromQL, and Kubernetes, ensures a user-friendly experience. By consolidating logs, traces, and metrics in one place, Dash0 provides actionable insights that help users quickly identify issues and enhance performance. The platform's straightforward pricing model further supports accessibility and transparency for its users.

Filigran

Series B in 2024
Filigran is a European cyber technology company dedicated to providing high-quality open-source software tailored for cybersecurity and crisis management teams. The company has developed an extended threat management (XTM) portfolio that includes solutions for cyber threat intelligence, adversary simulation, and crisis response. This comprehensive approach allows organizations, both private and public, to enhance their cybersecurity measures while leveraging open-source platforms. Filigran's commitment to supporting global organizations positions it as a key player in the field of cybersecurity and crisis management.

Corelight

Series E in 2024
Corelight, Inc. provides network visibility solutions tailored for information security professionals, focusing on network traffic analysis to combat cyber threats. The company offers a suite of products, including Corelight sensors and a fleet manager, built upon the open-source Bro framework, which delivers actionable, real-time data to enhance cybersecurity efforts. Founded in 2013 and headquartered in San Francisco, California, Corelight serves enterprises, government agencies, and higher education institutions, enabling them to gain deep insights into network traffic and effectively detect and respond to cyberattacks. The company also maintains additional offices in Santa Clara, California, and Columbus, Ohio.

vlt

Pre Seed Round in 2024
vlt /vōlt/ is a new home for open source. Building a next-gen package manager, registry & more...

Filigran

Series A in 2024
Filigran is a European cyber technology company dedicated to providing high-quality open-source software tailored for cybersecurity and crisis management teams. The company has developed an extended threat management (XTM) portfolio that includes solutions for cyber threat intelligence, adversary simulation, and crisis response. This comprehensive approach allows organizations, both private and public, to enhance their cybersecurity measures while leveraging open-source platforms. Filigran's commitment to supporting global organizations positions it as a key player in the field of cybersecurity and crisis management.

Vocode

Seed Round in 2024
Vocode is a developer of voice AI interfaces that specializes in creating voice-based applications through composability. The company's open-source library facilitates the development of realistic, production-ready conversational voice interfaces by providing essential tools for speech recognition, natural language understanding, and speech synthesis in real time. This platform streamlines common workflows, enabling developers to efficiently build and deploy advanced voice applications tailored to diverse needs. Vocode aims to empower developers in harnessing the potential of voice technology for various applications.

Stacklok

Series A in 2023
Stacklok develops software supply chain security solutions that focus on enhancing the security of open-source software for enterprises. The company provides a platform that offers end-to-end visibility into the software supply chain, allowing organizations to better secure their applications and tools. By making the benefits of open-source technology more accessible, Stacklok aims to empower developers to create software that is not only innovative but also secure.

EdgeDB

Series A in 2022
EdgeDB is an innovative company focused on transforming the relational database landscape. Founded in 2019 and based in San Francisco, it offers an open-source object-relational database platform designed to address common challenges faced by developers and data engineers. By introducing a streamlined data model and a powerful query language, EdgeDB aims to enhance productivity and ease of use, making data management more efficient. The platform enables developers to construct complex queries, subqueries, and nested inserts with a composable syntax that simplifies the representation of selection sets and property assignments. This approach helps mitigate the impedance mismatch often encountered in traditional databases, allowing for the development of safer and more efficient software.

Appsmith

Series B in 2022
Appsmith is a developer of an open-source low-code application platform established in mid-2019. The platform enables developers to efficiently build, deploy, and manage custom internal applications, particularly focusing on CRUD functionalities. With over 5 million downloads and usage among more than 1,000 enterprises across over 100 countries, Appsmith aims to simplify the development of internal tools by streamlining operations, automating processes, and facilitating the integration of various applications and data. Additionally, the platform enhances legacy applications by allowing developers to incorporate new features, all while maintaining enterprise-grade security and governance.

Sentry

Series E in 2022
Sentry is an open-source platform focused on improving workflow productivity through application monitoring. It aggregates data on errors and crashes across software stacks, providing real-time visibility into each incident as it occurs. The platform delivers essential details needed to prioritize and identify issues, along with insights into deployments and guidance for reproduction and resolution of crashes. By allowing organizations to pinpoint which errors have the greatest impact on their operations, Sentry helps users understand how these issues affect their overall performance and profitability.

Smallstep

Series A in 2022
Smallstep provides an identity authority designed for development, security, and operations teams, enabling them to integrate security into their delivery pipelines. By making code identity-aware, Smallstep enhances the security of connected applications across various environments, including cloud, containers, and serverless systems. The company offers an open-source toolkit that translates security best practices into actionable tools, allowing developers and operators to effectively protect their infrastructure. Additionally, Smallstep's comprehensive suite of operational tools facilitates the construction and maintenance of zero trust systems, securely connecting users and services across any platform globally. This approach reduces reliance on traditional security measures such as virtual private networks and firewalls, thereby streamlining security processes.

EdgeDB

Seed Round in 2022
EdgeDB is an innovative company focused on transforming the relational database landscape. Founded in 2019 and based in San Francisco, it offers an open-source object-relational database platform designed to address common challenges faced by developers and data engineers. By introducing a streamlined data model and a powerful query language, EdgeDB aims to enhance productivity and ease of use, making data management more efficient. The platform enables developers to construct complex queries, subqueries, and nested inserts with a composable syntax that simplifies the representation of selection sets and property assignments. This approach helps mitigate the impedance mismatch often encountered in traditional databases, allowing for the development of safer and more efficient software.

Airbyte

Series B in 2021
Airbyte is an open-source data integration platform that facilitates the synchronization of data from various applications, APIs, and databases to data warehouses. The platform automates the creation of data pipelines using both pre-built and custom connectors, allowing businesses to efficiently gather analytics from all users, including those employing ad-blocking tools. With a focus on simplifying data integration, Airbyte empowers organizations to streamline their data processes and enhance their analytical capabilities.

Appsmith

Series A in 2021
Appsmith is a developer of an open-source low-code application platform established in mid-2019. The platform enables developers to efficiently build, deploy, and manage custom internal applications, particularly focusing on CRUD functionalities. With over 5 million downloads and usage among more than 1,000 enterprises across over 100 countries, Appsmith aims to simplify the development of internal tools by streamlining operations, automating processes, and facilitating the integration of various applications and data. Additionally, the platform enhances legacy applications by allowing developers to incorporate new features, all while maintaining enterprise-grade security and governance.

Checkly

Series A in 2021
Checkly Inc. is a monitoring and testing platform designed for DevOps teams, focusing on the performance and status of API endpoints and essential website transactions. Founded in 2018 and based in Berlin, Germany, with an additional office in Boston, Massachusetts, Checkly offers a code-first solution that integrates seamlessly into development workflows. The platform features tools for monitoring critical transactions, such as logins and shopping carts, and includes capabilities for setting expiry alerts and taking screenshots for immediate insights. Checkly's emphasis on JavaScript-based open-source technology makes it accessible for modern, cross-functional teams looking to enhance their reliability and testing processes from a single dashboard.

Airbyte

Series A in 2021
Airbyte is an open-source data integration platform that facilitates the synchronization of data from various applications, APIs, and databases to data warehouses. The platform automates the creation of data pipelines using both pre-built and custom connectors, allowing businesses to efficiently gather analytics from all users, including those employing ad-blocking tools. With a focus on simplifying data integration, Airbyte empowers organizations to streamline their data processes and enhance their analytical capabilities.

Salto

Series B in 2021
Salto is the leading solution for business application configuration. By adapting and applying software development concepts and best practices to the business operations world, Salto provides an Open Source and an Enterprise SaaS product that re-imagines multi-application configuration in the modern company. Salto's solution automatically extracts the configurations of different business applications - including Salesforce, NetSuite and HubSpot - and translates them to a new declarative representation called NaCl (“Not Another Configuration Language”). Using NaCl with Git, all applications’ configurations can be collaboratively edited and deployed back to the live business applications, or to a staging environment for testing. With Salto, configuration changes to multiple business applications can be easily tested, tracked or even rolled back if needed. Salto was founded in 2019 by veteran Israeli entrepreneurs Rami Tamir, Benny Schnaider and Gil Hoffer and is their latest startup, after successes with previous companies - Pentacom (acquired by Cisco), Qumranet (acquired by Red Hat) and Ravello Systems (acquired by Oracle). It is backed by leading investors such as Bessmer Venture Partners, Lightspeed Venture Partners and Salesforce Ventures and has offices in Tel Aviv and San Francisco.

Styra

Series B in 2021
Styra, Inc. is a technology company based in Redwood City, California, founded in 2015. It specializes in developing a cloud-native authorization platform that enables organizations to enforce and monitor authorization policies across their applications and infrastructure. The Styra platform utilizes an Open Policy Agent to provide a comprehensive solution for managing security and compliance risks. Its features include context-based admission control, policy design and validation, policy distribution, and monitoring and auditing capabilities. By implementing authorization policy-as-code, Styra allows businesses to pre-validate policy changes, thereby mitigating risks before deployment. The platform also supports a range of environments, including multi-cloud, microservices, containers, and databases, ensuring that security policies can be defined and enforced consistently across various namespaces and clusters.

Airbyte

Seed Round in 2021
Airbyte is an open-source data integration platform that facilitates the synchronization of data from various applications, APIs, and databases to data warehouses. The platform automates the creation of data pipelines using both pre-built and custom connectors, allowing businesses to efficiently gather analytics from all users, including those employing ad-blocking tools. With a focus on simplifying data integration, Airbyte empowers organizations to streamline their data processes and enhance their analytical capabilities.

Sentry

Series D in 2021
Sentry is an open-source platform focused on improving workflow productivity through application monitoring. It aggregates data on errors and crashes across software stacks, providing real-time visibility into each incident as it occurs. The platform delivers essential details needed to prioritize and identify issues, along with insights into deployments and guidance for reproduction and resolution of crashes. By allowing organizations to pinpoint which errors have the greatest impact on their operations, Sentry helps users understand how these issues affect their overall performance and profitability.

Weaveworks

Venture Round in 2020
Weaveworks Limited is a software company founded in 2014 and based in London, with an additional office in San Francisco. The company specializes in open-source software that facilitates the management of Docker containers and Kubernetes workloads, providing tools for developers and DevOps teams. Its products include Weave Net, which offers a portable software-defined networking solution; Weave Scope, enabling real-time visualization and interaction with distributed applications; Weave Flux, which automates the routing of requests for containerized microservices; and Weave Cloud, a Software-as-a-Service platform that helps teams connect, monitor, and deploy cloud-native applications. Weaveworks aims to simplify the complexities of operating cloud-native applications by offering automated continuous delivery pipelines, observability, and monitoring, while also contributing to various open-source projects.

Altinity

Seed Round in 2020
Altinity Ltd is a database consulting company based in Gillingham, United Kingdom, specializing in ClickHouse, an open-source column-store database management system designed for managing and analyzing large volumes of data. Established in 2017, Altinity provides both cloud and on-premise data analytics solutions, along with consulting, support, and training services to assist clients in designing and implementing data analytics using ClickHouse. The company caters to a diverse clientele, including startups and large corporations, leveraging ClickHouse for various big data analytics applications. Altinity's platform enables users to deploy and manage real-time analytic applications efficiently and affordably, allowing them to benefit from advanced data management capabilities without incurring significant licensing costs.

Checkly

Seed Round in 2020
Checkly Inc. is a monitoring and testing platform designed for DevOps teams, focusing on the performance and status of API endpoints and essential website transactions. Founded in 2018 and based in Berlin, Germany, with an additional office in Boston, Massachusetts, Checkly offers a code-first solution that integrates seamlessly into development workflows. The platform features tools for monitoring critical transactions, such as logins and shopping carts, and includes capabilities for setting expiry alerts and taking screenshots for immediate insights. Checkly's emphasis on JavaScript-based open-source technology makes it accessible for modern, cross-functional teams looking to enhance their reliability and testing processes from a single dashboard.

Styra

Series A in 2019
Styra, Inc. is a technology company based in Redwood City, California, founded in 2015. It specializes in developing a cloud-native authorization platform that enables organizations to enforce and monitor authorization policies across their applications and infrastructure. The Styra platform utilizes an Open Policy Agent to provide a comprehensive solution for managing security and compliance risks. Its features include context-based admission control, policy design and validation, policy distribution, and monitoring and auditing capabilities. By implementing authorization policy-as-code, Styra allows businesses to pre-validate policy changes, thereby mitigating risks before deployment. The platform also supports a range of environments, including multi-cloud, microservices, containers, and databases, ensuring that security policies can be defined and enforced consistently across various namespaces and clusters.

Corelight

Series C in 2019
Corelight, Inc. provides network visibility solutions tailored for information security professionals, focusing on network traffic analysis to combat cyber threats. The company offers a suite of products, including Corelight sensors and a fleet manager, built upon the open-source Bro framework, which delivers actionable, real-time data to enhance cybersecurity efforts. Founded in 2013 and headquartered in San Francisco, California, Corelight serves enterprises, government agencies, and higher education institutions, enabling them to gain deep insights into network traffic and effectively detect and respond to cyberattacks. The company also maintains additional offices in Santa Clara, California, and Columbus, Ohio.

Sentry

Series C in 2019
Sentry is an open-source platform focused on improving workflow productivity through application monitoring. It aggregates data on errors and crashes across software stacks, providing real-time visibility into each incident as it occurs. The platform delivers essential details needed to prioritize and identify issues, along with insights into deployments and guidance for reproduction and resolution of crashes. By allowing organizations to pinpoint which errors have the greatest impact on their operations, Sentry helps users understand how these issues affect their overall performance and profitability.

Appsmith

Seed Round in 2019
Appsmith is a developer of an open-source low-code application platform established in mid-2019. The platform enables developers to efficiently build, deploy, and manage custom internal applications, particularly focusing on CRUD functionalities. With over 5 million downloads and usage among more than 1,000 enterprises across over 100 countries, Appsmith aims to simplify the development of internal tools by streamlining operations, automating processes, and facilitating the integration of various applications and data. Additionally, the platform enhances legacy applications by allowing developers to incorporate new features, all while maintaining enterprise-grade security and governance.

Sentry

Series B in 2018
Sentry is an open-source platform focused on improving workflow productivity through application monitoring. It aggregates data on errors and crashes across software stacks, providing real-time visibility into each incident as it occurs. The platform delivers essential details needed to prioritize and identify issues, along with insights into deployments and guidance for reproduction and resolution of crashes. By allowing organizations to pinpoint which errors have the greatest impact on their operations, Sentry helps users understand how these issues affect their overall performance and profitability.

Heptio

Series B in 2017
Heptio Inc. is a company based in Seattle, Washington, founded in 2016 by key contributors to the Kubernetes project. It specializes in making the Kubernetes open-source container management software accessible to enterprises, facilitating the automation of deployment, scaling, and management of containerized applications. Heptio aims to bridge the gap between traditional enterprise IT and modern cloud-native computing, providing tools and technologies designed for the contemporary business environment. By supporting and advancing the Kubernetes ecosystem, Heptio helps organizations leverage Docker containers effectively, enabling them to build robust cloud-native architectures. As of December 2018, Heptio operates as a subsidiary of VMware, Inc.

Corelight

Series A in 2017
Corelight, Inc. provides network visibility solutions tailored for information security professionals, focusing on network traffic analysis to combat cyber threats. The company offers a suite of products, including Corelight sensors and a fleet manager, built upon the open-source Bro framework, which delivers actionable, real-time data to enhance cybersecurity efforts. Founded in 2013 and headquartered in San Francisco, California, Corelight serves enterprises, government agencies, and higher education institutions, enabling them to gain deep insights into network traffic and effectively detect and respond to cyberattacks. The company also maintains additional offices in Santa Clara, California, and Columbus, Ohio.

Heptio

Series A in 2016
Heptio Inc. is a company based in Seattle, Washington, founded in 2016 by key contributors to the Kubernetes project. It specializes in making the Kubernetes open-source container management software accessible to enterprises, facilitating the automation of deployment, scaling, and management of containerized applications. Heptio aims to bridge the gap between traditional enterprise IT and modern cloud-native computing, providing tools and technologies designed for the contemporary business environment. By supporting and advancing the Kubernetes ecosystem, Heptio helps organizations leverage Docker containers effectively, enabling them to build robust cloud-native architectures. As of December 2018, Heptio operates as a subsidiary of VMware, Inc.

Smallstep

Seed Round in 2016
Smallstep provides an identity authority designed for development, security, and operations teams, enabling them to integrate security into their delivery pipelines. By making code identity-aware, Smallstep enhances the security of connected applications across various environments, including cloud, containers, and serverless systems. The company offers an open-source toolkit that translates security best practices into actionable tools, allowing developers and operators to effectively protect their infrastructure. Additionally, Smallstep's comprehensive suite of operational tools facilitates the construction and maintenance of zero trust systems, securely connecting users and services across any platform globally. This approach reduces reliance on traditional security measures such as virtual private networks and firewalls, thereby streamlining security processes.

Sentry

Series A in 2016
Sentry is an open-source platform focused on improving workflow productivity through application monitoring. It aggregates data on errors and crashes across software stacks, providing real-time visibility into each incident as it occurs. The platform delivers essential details needed to prioritize and identify issues, along with insights into deployments and guidance for reproduction and resolution of crashes. By allowing organizations to pinpoint which errors have the greatest impact on their operations, Sentry helps users understand how these issues affect their overall performance and profitability.

Weaveworks

Series B in 2016
Weaveworks Limited is a software company founded in 2014 and based in London, with an additional office in San Francisco. The company specializes in open-source software that facilitates the management of Docker containers and Kubernetes workloads, providing tools for developers and DevOps teams. Its products include Weave Net, which offers a portable software-defined networking solution; Weave Scope, enabling real-time visualization and interaction with distributed applications; Weave Flux, which automates the routing of requests for containerized microservices; and Weave Cloud, a Software-as-a-Service platform that helps teams connect, monitor, and deploy cloud-native applications. Weaveworks aims to simplify the complexities of operating cloud-native applications by offering automated continuous delivery pipelines, observability, and monitoring, while also contributing to various open-source projects.

CoreOS

Series B in 2016
CoreOS, Inc. is a technology company that specializes in open source projects for Linux containers and Internet security software solutions. Founded in 2012 and based in San Francisco, with additional offices in New York City and a development hub in Berlin, CoreOS is recognized for its contributions to the Kubernetes community. The company offers Tectonic, an enterprise-ready platform that enhances Kubernetes with features for secure container orchestration, and Quay, a private image registry for building, storing, and distributing containers. CoreOS also provides CoreUpdate, a tool for managing application updates, and maintains various open source projects, including CoreOS Linux, etcd, and rkt. These solutions address key challenges related to downtime, security, and resilience, enabling organizations to run their applications reliably in diverse environments. In 2018, CoreOS became a subsidiary of Red Hat, further bolstering its position in the cloud infrastructure landscape.

Sentry

Seed Round in 2015
Sentry is an open-source platform focused on improving workflow productivity through application monitoring. It aggregates data on errors and crashes across software stacks, providing real-time visibility into each incident as it occurs. The platform delivers essential details needed to prioritize and identify issues, along with insights into deployments and guidance for reproduction and resolution of crashes. By allowing organizations to pinpoint which errors have the greatest impact on their operations, Sentry helps users understand how these issues affect their overall performance and profitability.

CoreOS

Series A in 2015
CoreOS, Inc. is a technology company that specializes in open source projects for Linux containers and Internet security software solutions. Founded in 2012 and based in San Francisco, with additional offices in New York City and a development hub in Berlin, CoreOS is recognized for its contributions to the Kubernetes community. The company offers Tectonic, an enterprise-ready platform that enhances Kubernetes with features for secure container orchestration, and Quay, a private image registry for building, storing, and distributing containers. CoreOS also provides CoreUpdate, a tool for managing application updates, and maintains various open source projects, including CoreOS Linux, etcd, and rkt. These solutions address key challenges related to downtime, security, and resilience, enabling organizations to run their applications reliably in diverse environments. In 2018, CoreOS became a subsidiary of Red Hat, further bolstering its position in the cloud infrastructure landscape.

Weaveworks

Series A in 2014
Weaveworks Limited is a software company founded in 2014 and based in London, with an additional office in San Francisco. The company specializes in open-source software that facilitates the management of Docker containers and Kubernetes workloads, providing tools for developers and DevOps teams. Its products include Weave Net, which offers a portable software-defined networking solution; Weave Scope, enabling real-time visualization and interaction with distributed applications; Weave Flux, which automates the routing of requests for containerized microservices; and Weave Cloud, a Software-as-a-Service platform that helps teams connect, monitor, and deploy cloud-native applications. Weaveworks aims to simplify the complexities of operating cloud-native applications by offering automated continuous delivery pipelines, observability, and monitoring, while also contributing to various open-source projects.

Alfresco Software

Series D in 2014
Alfresco is an enterprise open-source software company based in San Mateo, California, that specializes in automating content-centric processes for digital businesses. Founded in 2005, Alfresco develops enterprise content management software that facilitates document management, web content management, data collaboration, and records management. The company's platform enhances interoperability in content management, enabling organizations to digitize critical business processes efficiently. By leveraging open-source technologies and contributions from the community, Alfresco delivers high-quality software at a reduced cost, combining innovation with the reliability expected of an enterprise-class solution.

Hortonworks

Series D in 2014
Hortonworks, Inc. is a provider of data management platforms and solutions that cater to a diverse range of industries, including financial services, healthcare, and telecommunications. The company specializes in the Hortonworks Data Platform (HDP), which is based on Apache Hadoop, allowing enterprises to store, manage, and analyze large datasets efficiently. In addition to HDP, Hortonworks offers Hortonworks DataFlow for real-time streaming analytics, Hortonworks DataPlane Service for data management across hybrid environments, and the Hortonworks Cybersecurity Platform for security analytics. The company also provides educational resources such as training, support services, and the Hortonworks Sandbox for testing and development. Founded in 2011 and headquartered in Santa Clara, California, Hortonworks operates globally and focuses on enabling organizations to harness the power of big data through its open-source solutions. As of early 2019, Hortonworks operates as a subsidiary of Cloudera, Inc.

Kickfire Analytics

Series B in 2008
Kickfire makes an analytic appliance for the MySQL data warehouse market. With 11 million active installations, MySQL is the world's most popular open source database and its adoption is accelerating. As the amount of data stored in MySQL grows, so too does the requirement to analyze this data for business decision making. However, the technologies required for data warehousing and high-performance query and reporting within the leading proprietary databases such as Oracle and SQL Server don't exist in MySQL. Kickfire has the answer. By combining hardware and software innovations with the ease-of-use of the MySQL open source database, Kickfire brings to market an analytic appliance with unheard of performance, simplicity, and economics. At the core of every Kickfire appliance is a new SQL chip that radically alters the economics of query processing by packing the power of 10s of CPUs into a single chip. Just as NVIDIA moved graphics processing from software to hardware, Kickfire has done the same for database operations. This disruptive innovation facilitates tremendous improvements in speed and reductions in cost and power. With Kickfire, the MySQL data warehouse market now has a fully functional, load-and-go analytic appliance that rivals any of the proprietary database appliances or specialized analytic databases in the world. And there is no expensive hardware buildout or complex tuning required. Kickfire was founded in 2006 by Raj Cherabuddi and Joseph Chamdani, two proven entrepreneurs with more than 50 issued patents. Prior to Kickfire, they founded Sanera Systems, a startup that focused on mission-critical, high-performance SAN switches. Sanera was successfully acquired by McDATA, a public company with $800M in annual revenues, and is now part of Brocade. Backed by blue chip investors Accel Partners, Greylock Partners, Mayfield Fund and Pinnacle Ventures, Kickfire is headquartered in Santa Clara, California.

Alfresco Software

Series C in 2008
Alfresco is an enterprise open-source software company based in San Mateo, California, that specializes in automating content-centric processes for digital businesses. Founded in 2005, Alfresco develops enterprise content management software that facilitates document management, web content management, data collaboration, and records management. The company's platform enhances interoperability in content management, enabling organizations to digitize critical business processes efficiently. By leveraging open-source technologies and contributions from the community, Alfresco delivers high-quality software at a reduced cost, combining innovation with the reliability expected of an enterprise-class solution.

XenSource

Series C in 2006
XenSource, Inc. is a developer of enterprise-grade virtualization technology that focuses on simplifying server infrastructure. Founded in 2004 and headquartered in Palo Alto, California, the company is known for its open-source hypervisor virtualization technology, which includes Xen 3.0, a robust platform designed for enterprise server deployment. In addition, XenSource offers Xen Optimiser, a software management solution for multi-server virtualization infrastructure, and subscription-based support services for its products. By leveraging these technologies, XenSource enables organizations to enhance server utilization, consolidate resources, and improve data center efficiency, ultimately reducing overall costs associated with server management. In October 2007, XenSource was acquired by Citrix Systems, Inc.

Zimbra

Series C in 2006
Zimbra offers open-source e-mail, address book, calendar, tasks, and collaboration software. The company offers Zimbra Collaboration Server, which provides post-PC email, calendar, and collaboration solutions that solve the challenges faced by organizations mired in legacy communications infrastructure; and Zimbra Desktop, which aggregates information across accounts such as Zimbra, Yahoo Mail, Gmail, and Hotmail. The company was founded in 2003 and is headquartered in Frisco, Texas with additional offices in San Mateo, California; London; Tokyo; Singapore; and Pune, India.

Alfresco Software

Series B in 2006
Alfresco is an enterprise open-source software company based in San Mateo, California, that specializes in automating content-centric processes for digital businesses. Founded in 2005, Alfresco develops enterprise content management software that facilitates document management, web content management, data collaboration, and records management. The company's platform enhances interoperability in content management, enabling organizations to digitize critical business processes efficiently. By leveraging open-source technologies and contributions from the community, Alfresco delivers high-quality software at a reduced cost, combining innovation with the reliability expected of an enterprise-class solution.

XenSource

Series B in 2005
XenSource, Inc. is a developer of enterprise-grade virtualization technology that focuses on simplifying server infrastructure. Founded in 2004 and headquartered in Palo Alto, California, the company is known for its open-source hypervisor virtualization technology, which includes Xen 3.0, a robust platform designed for enterprise server deployment. In addition, XenSource offers Xen Optimiser, a software management solution for multi-server virtualization infrastructure, and subscription-based support services for its products. By leveraging these technologies, XenSource enables organizations to enhance server utilization, consolidate resources, and improve data center efficiency, ultimately reducing overall costs associated with server management. In October 2007, XenSource was acquired by Citrix Systems, Inc.

Alfresco Software

Series A in 2005
Alfresco is an enterprise open-source software company based in San Mateo, California, that specializes in automating content-centric processes for digital businesses. Founded in 2005, Alfresco develops enterprise content management software that facilitates document management, web content management, data collaboration, and records management. The company's platform enhances interoperability in content management, enabling organizations to digitize critical business processes efficiently. By leveraging open-source technologies and contributions from the community, Alfresco delivers high-quality software at a reduced cost, combining innovation with the reliability expected of an enterprise-class solution.

JBoss

Series A in 2004
JBoss is an American company specialized in writing and supporting open-source software. JBoss is a division of Red Hat, Inc., which integrates and hardens the latest enterprise-ready features from JBoss community projects into supported, stable, enterprise-class middleware distributions. The company’s product portfolio includes enterprise a web platform, web server, SOA platform, data services, web framework kit, operations network, and more.

2nd Century

Venture Round in 2000
2nd Century Communications, an open network application service provider.
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