Index Ventures

Index Ventures, established in 1996, is a global venture capital firm with offices in London, San Francisco, and Geneva. The company invests in early and growth-stage technology startups, focusing on sectors such as software, artificial intelligence, machine learning, fintech, healthcare, and mobility. Index Ventures has a proven track record of backing successful companies like Adyen, Deliveroo, Dropbox, Farfetch, King, Slack, and Supercell. The firm's investment strategy is to support bold entrepreneurs with transformative ideas, helping them build global businesses.

Nina Achadjian

Partner and Investor

Julia Andre

Partner and Investor

Damir Becirovic

Partner

Carlos Gonzalez-Cadenas

Partner and Investor

Sofia Dolfe

Partner and Investor

Paula Garcia Domingo

Partner and Investor

Juriaan Duizendstraal

Partner and Investor

Zabie Elmgren

Partner

Mark Fiorentino

Principal

Giacomo Genzini

Partner and Investor

Mark Goldberg

Partner and Investor

Jan Hammer

Partner and Investor

Bastian Hasslinger

Partner and Investor

Paris Heymann

Partner and Investor

Jack Kleeman

Partner

Adrianna Ma

Operating Partner

Martin Mignot

Partner

Bryan Offut

Principal / Partner

Bryan Offutt

Partner and Investor

Shimin Ooi

Partner

Cyriac Parisot

VC Investor and Head of Data

Danny Rimer

Partner

Neil Rimer

Co-Founder and Investor

Susana Rojas

Partner and Investor

Jahanvi Sardana

Partner and Investor

Emil Schaefer

Partner

Hannah Seal

Partner and Investor

Kimihiko Shindo

General Partner

Georgia Stevenson

Partner and Investor

Ishani Thakur

Partner and investor

Kelly Toole

Partner

Dominique Vidal

Venture Partner

Mike Volpi

Partner

Katharina Wilhelm

Partner and Investor

Catherine Wu

Partner and Investor

Cat Wu

Partner

Mark Xu

Partner

Giuseppe Zocco

Co-Founder

Past deals in Open Source

Temporal

Series C in 2025
Temporal Technologies Inc. is a software company based in Bellevue, Washington, founded in 2019. It specializes in developing an open-source microservices orchestration engine that enables developers to build and operate scalable and resilient applications. This platform supports the creation of complex workflows and data pipelines, ensuring reliable workflow completion regardless of size or complexity. It includes features such as built-in support for exponential activity retries and native saga pattern support for defining workflow compensation logic. Additionally, Temporal offers tools for development, debugging, testing, resource provisioning, and monitoring, as well as cloud services to enhance application performance and reliability.

Kong

Series E in 2024
Kong Inc., established in 2009 and headquartered in San Francisco, specializes in API management. It operates an API marketplace, facilitating the distribution, monetization, and management of cloud-based services. Kong's key products include Kong, an open-source API management layer; Kong Enterprise Edition, a scalable microservices API platform; and Galileo, an analytics tool for API and microservice monitoring. Additionally, Kong offers API Documentation and Developer Portal, aiding developers in creating and managing API projects securely. The company serves a global client base comprising consumers, providers, developers, and IT teams, promoting productivity, security, and performance in API development.

Mistral AI_

Seed Round in 2023
Mistral AI is a company dedicated to developing advanced artificial intelligence solutions, with a particular emphasis on creating open-source large language models. The company focuses on producing customizable and compute-efficient AI models that support various applications, including natural language processing and complex problem-solving. Mistral AI aims to advance the field of artificial intelligence by fostering a community-driven development approach, allowing businesses and organizations to utilize powerful AI technologies without the burden of building and maintaining their own models. Through its innovative offerings, Mistral AI seeks to drive efficiency, innovation, and informed decision-making across diverse sectors.

Dagster Labs

Series B in 2023
Dagster Labs is a developer of an open-source data orchestration platform called Dagster. This platform is designed to facilitate the development, production, and observation of data assets, enabling organizations to create productive and scalable data environments. By utilizing a Python library, Dagster allows users to build modern data applications that promote seamless collaboration in processing and producing trusted and reliable data. The platform is engineered to integrate easily with existing tools and infrastructure, enhancing the efficiency and effectiveness of data management for clients.

Weaviate

Series B in 2023
Weaviate is a technology company that specializes in developing a hybrid software-as-a-service (SaaS) platform for building advanced search and recommendation systems. The company offers an open-source AI vector search engine that includes various extensions tailored for specific applications, such as semantic search and plugins for easy integration into existing systems. Weaviate's platform is designed to efficiently scale applications from end-to-end, utilizing hybrid and multimodal search capabilities. It seamlessly integrates machine learning models within a purpose-built architecture that can accommodate billions of data objects, thus enabling clients to effectively leverage their machine learning applications.

Temporal

Series B in 2023
Temporal Technologies Inc. is a software company based in Bellevue, Washington, founded in 2019. It specializes in developing an open-source microservices orchestration engine that enables developers to build and operate scalable and resilient applications. This platform supports the creation of complex workflows and data pipelines, ensuring reliable workflow completion regardless of size or complexity. It includes features such as built-in support for exponential activity retries and native saga pattern support for defining workflow compensation logic. Additionally, Temporal offers tools for development, debugging, testing, resource provisioning, and monitoring, as well as cloud services to enhance application performance and reliability.

Strapi

Series B in 2022
Strapi is a company that provides an open-source headless content management system designed to simplify the development and management of APIs for developers. Founded in 2016 and headquartered in Paris, Ile-de-France, Strapi allows developers to create, deploy, and manage their applications' back-end with minimal effort, while giving them the flexibility to choose their preferred front-end frameworks. Its robust platform features a powerful dashboard for API prototyping and content management, enabling editors to easily manage and distribute content across various devices and channels. By decoupling the back-end from the front-end, Strapi enhances the development process and offers a user-friendly experience for both developers and content managers.

Temporal

Series B in 2022
Temporal Technologies Inc. is a software company based in Bellevue, Washington, founded in 2019. It specializes in developing an open-source microservices orchestration engine that enables developers to build and operate scalable and resilient applications. This platform supports the creation of complex workflows and data pipelines, ensuring reliable workflow completion regardless of size or complexity. It includes features such as built-in support for exponential activity retries and native saga pattern support for defining workflow compensation logic. Additionally, Temporal offers tools for development, debugging, testing, resource provisioning, and monitoring, as well as cloud services to enhance application performance and reliability.

Great Expectations

Series B in 2022
Great Expectations is a developer of an open-source data quality platform that aims to enhance the speed and integrity of data collaboration. The company focuses on establishing a shared data quality standard, facilitating easier testing of data pipelines to boost overall data quality. Its platform employs machine learning algorithms to validate, document, and profile data, addressing issues related to pipeline debt. By providing an integration library, Great Expectations enables organizations to uphold their data standards and improve communication regarding data across different teams.

Superconductive

Series B in 2022
Superconductive is the creator of Great Expectations, an open-source tool for data testing, documentation, and profiling. Great Expectations has a vibrant community where both core contributors and community members provide each other support through channels like Slack and Discuss. They offer paid consulting services to organizations that would benefit from closer collaboration with the core Great Expectations engineering team. It was created in 2017 and is headquartered in Redwood City, California.

SphereEx

Seed Round in 2022
SphereEx builds new distributed data infrastructures, by being fully committed to the open source community, the platform concept, and cutting-edge Big Data technological innovation. Our R&D efforts led to the success of ShardingSphere, a "platform, pluggable, cloud-native" distributed middleware solution ideal for large-scale data and data value-added applications. Our pioneering "Database Plus" and "Database Mesh" concepts are designed to unlock innovative data usage concepts, improve enterprise data applications, and easily respond to complex data scenarios. Following over 5 years of development, the ShardingSphere project has gained more than 13 thousand GitStars on GitHub, involving over 200 contributors, becoming one of the most popular open source projects. In April 2020, ShardingSphere successfully graduated from the Apache Incubator, and became an Apache Software Foundation Top-Level Project. More recently, ShardingSphere has also been recognized as a Cloud Native Computing Foundation (CNCF) Panorama project. To date, ShardingSphere has already been used in more than 160 enterprise and production environments covering the financial, logistics, O2O, internet & cloud computing fields, to help achieve enterprise digital transformation.

Cockroach Labs

Series F in 2021
Cockroach Labs, Inc. is a technology company that specializes in developing open-source database software, particularly known for its flagship product, CockroachDB. This cloud-native, distributed SQL database is designed to support the rapid scaling of applications while ensuring resilience against failures, including disk, machine, and datacenter outages. CockroachDB offers strong consistency and ACID transactions, along with an SQL API for efficient data management. The platform is utilized by a diverse range of customers, from small startups to Fortune 500 companies, across various industries such as finance, retail, and media. Founded in 2015, Cockroach Labs is headquartered in New York City, with an additional office in Cambridge, Massachusetts. The company focuses on enabling developers to build robust applications without compromising on performance or reliability.

Dagster Labs

Series A in 2021
Dagster Labs is a developer of an open-source data orchestration platform called Dagster. This platform is designed to facilitate the development, production, and observation of data assets, enabling organizations to create productive and scalable data environments. By utilizing a Python library, Dagster allows users to build modern data applications that promote seamless collaboration in processing and producing trusted and reliable data. The platform is engineered to integrate easily with existing tools and infrastructure, enhancing the efficiency and effectiveness of data management for clients.

Great Expectations

Series A in 2021
Great Expectations is a developer of an open-source data quality platform that aims to enhance the speed and integrity of data collaboration. The company focuses on establishing a shared data quality standard, facilitating easier testing of data pipelines to boost overall data quality. Its platform employs machine learning algorithms to validate, document, and profile data, addressing issues related to pipeline debt. By providing an integration library, Great Expectations enables organizations to uphold their data standards and improve communication regarding data across different teams.

Superconductive

Series A in 2021
Superconductive is the creator of Great Expectations, an open-source tool for data testing, documentation, and profiling. Great Expectations has a vibrant community where both core contributors and community members provide each other support through channels like Slack and Discuss. They offer paid consulting services to organizations that would benefit from closer collaboration with the core Great Expectations engineering team. It was created in 2017 and is headquartered in Redwood City, California.

Kong

Series D in 2021
Kong Inc., established in 2009 and headquartered in San Francisco, specializes in API management. It operates an API marketplace, facilitating the distribution, monetization, and management of cloud-based services. Kong's key products include Kong, an open-source API management layer; Kong Enterprise Edition, a scalable microservices API platform; and Galileo, an analytics tool for API and microservice monitoring. Additionally, Kong offers API Documentation and Developer Portal, aiding developers in creating and managing API projects securely. The company serves a global client base comprising consumers, providers, developers, and IT teams, promoting productivity, security, and performance in API development.

Cockroach Labs

Series E in 2021
Cockroach Labs, Inc. is a technology company that specializes in developing open-source database software, particularly known for its flagship product, CockroachDB. This cloud-native, distributed SQL database is designed to support the rapid scaling of applications while ensuring resilience against failures, including disk, machine, and datacenter outages. CockroachDB offers strong consistency and ACID transactions, along with an SQL API for efficient data management. The platform is utilized by a diverse range of customers, from small startups to Fortune 500 companies, across various industries such as finance, retail, and media. Founded in 2015, Cockroach Labs is headquartered in New York City, with an additional office in Cambridge, Massachusetts. The company focuses on enabling developers to build robust applications without compromising on performance or reliability.

Strapi

Series A in 2020
Strapi is a company that provides an open-source headless content management system designed to simplify the development and management of APIs for developers. Founded in 2016 and headquartered in Paris, Ile-de-France, Strapi allows developers to create, deploy, and manage their applications' back-end with minimal effort, while giving them the flexibility to choose their preferred front-end frameworks. Its robust platform features a powerful dashboard for API prototyping and content management, enabling editors to easily manage and distribute content across various devices and channels. By decoupling the back-end from the front-end, Strapi enhances the development process and offers a user-friendly experience for both developers and content managers.

Cockroach Labs

Series D in 2020
Cockroach Labs, Inc. is a technology company that specializes in developing open-source database software, particularly known for its flagship product, CockroachDB. This cloud-native, distributed SQL database is designed to support the rapid scaling of applications while ensuring resilience against failures, including disk, machine, and datacenter outages. CockroachDB offers strong consistency and ACID transactions, along with an SQL API for efficient data management. The platform is utilized by a diverse range of customers, from small startups to Fortune 500 companies, across various industries such as finance, retail, and media. Founded in 2015, Cockroach Labs is headquartered in New York City, with an additional office in Cambridge, Massachusetts. The company focuses on enabling developers to build robust applications without compromising on performance or reliability.

Cockroach Labs

Series C in 2019
Cockroach Labs, Inc. is a technology company that specializes in developing open-source database software, particularly known for its flagship product, CockroachDB. This cloud-native, distributed SQL database is designed to support the rapid scaling of applications while ensuring resilience against failures, including disk, machine, and datacenter outages. CockroachDB offers strong consistency and ACID transactions, along with an SQL API for efficient data management. The platform is utilized by a diverse range of customers, from small startups to Fortune 500 companies, across various industries such as finance, retail, and media. Founded in 2015, Cockroach Labs is headquartered in New York City, with an additional office in Cambridge, Massachusetts. The company focuses on enabling developers to build robust applications without compromising on performance or reliability.

Kong

Series C in 2019
Kong Inc., established in 2009 and headquartered in San Francisco, specializes in API management. It operates an API marketplace, facilitating the distribution, monetization, and management of cloud-based services. Kong's key products include Kong, an open-source API management layer; Kong Enterprise Edition, a scalable microservices API platform; and Galileo, an analytics tool for API and microservice monitoring. Additionally, Kong offers API Documentation and Developer Portal, aiding developers in creating and managing API projects securely. The company serves a global client base comprising consumers, providers, developers, and IT teams, promoting productivity, security, and performance in API development.

Big Switch Networks

Venture Round in 2017
Big Switch Networks Inc. is a provider of data center networking technologies, focusing on delivering solutions for on-premises enterprise cloud, public cloud, and multi-cloud environments. Established in 2010 and based in Santa Clara, California, the company offers a range of products, including Big Monitoring Fabric, which creates security chains for inline traffic and provides comprehensive visibility across an organization, and Big Cloud Fabric, which utilizes open networking and software-defined networking technology. These solutions aim to enhance operational efficiency, improve business agility, and lower networking costs for organizations of all sizes. Big Switch Networks is also recognized for its contributions to open source communities and maintains strategic partnerships with notable companies in the industry. The company operates globally, with a presence in over 25 countries, and has been a subsidiary of Arista Networks since 2020.

Cockroach Labs

Series B in 2017
Cockroach Labs, Inc. is a technology company that specializes in developing open-source database software, particularly known for its flagship product, CockroachDB. This cloud-native, distributed SQL database is designed to support the rapid scaling of applications while ensuring resilience against failures, including disk, machine, and datacenter outages. CockroachDB offers strong consistency and ACID transactions, along with an SQL API for efficient data management. The platform is utilized by a diverse range of customers, from small startups to Fortune 500 companies, across various industries such as finance, retail, and media. Founded in 2015, Cockroach Labs is headquartered in New York City, with an additional office in Cambridge, Massachusetts. The company focuses on enabling developers to build robust applications without compromising on performance or reliability.

Kong

Series B in 2017
Kong Inc., established in 2009 and headquartered in San Francisco, specializes in API management. It operates an API marketplace, facilitating the distribution, monetization, and management of cloud-based services. Kong's key products include Kong, an open-source API management layer; Kong Enterprise Edition, a scalable microservices API platform; and Galileo, an analytics tool for API and microservice monitoring. Additionally, Kong offers API Documentation and Developer Portal, aiding developers in creating and managing API projects securely. The company serves a global client base comprising consumers, providers, developers, and IT teams, promoting productivity, security, and performance in API development.

Nginx

Series B in 2016
Nginx, established in 2011, is a technology company that specializes in developing and maintaining the open-source web server NGINX. Its offerings include application delivery, load balancing, security, and API management solutions. Key products are NGINX Plus, a software load balancer and web server; NGINX Controller, for managing NGINX Plus; NGINX Unit, a dynamic application server; NGINX Web Application Firewall; and NGINX Amplify, a SaaS monitoring tool. Headquartered in San Francisco, with offices in Cork and Singapore, Nginx operates as a subsidiary of F5 Networks.

Cockroach Labs

Series A in 2016
Cockroach Labs, Inc. is a technology company that specializes in developing open-source database software, particularly known for its flagship product, CockroachDB. This cloud-native, distributed SQL database is designed to support the rapid scaling of applications while ensuring resilience against failures, including disk, machine, and datacenter outages. CockroachDB offers strong consistency and ACID transactions, along with an SQL API for efficient data management. The platform is utilized by a diverse range of customers, from small startups to Fortune 500 companies, across various industries such as finance, retail, and media. Founded in 2015, Cockroach Labs is headquartered in New York City, with an additional office in Cambridge, Massachusetts. The company focuses on enabling developers to build robust applications without compromising on performance or reliability.

Big Switch Networks

Series C in 2016
Big Switch Networks Inc. is a provider of data center networking technologies, focusing on delivering solutions for on-premises enterprise cloud, public cloud, and multi-cloud environments. Established in 2010 and based in Santa Clara, California, the company offers a range of products, including Big Monitoring Fabric, which creates security chains for inline traffic and provides comprehensive visibility across an organization, and Big Cloud Fabric, which utilizes open networking and software-defined networking technology. These solutions aim to enhance operational efficiency, improve business agility, and lower networking costs for organizations of all sizes. Big Switch Networks is also recognized for its contributions to open source communities and maintains strategic partnerships with notable companies in the industry. The company operates globally, with a presence in over 25 countries, and has been a subsidiary of Arista Networks since 2020.

SourceClear

Series A in 2015
SourceClear, Inc. is a software security company that focuses on providing tools to help developers build secure and reliable applications. Founded in 2012 and headquartered in San Francisco, with an additional office in Singapore, SourceClear utilizes data science and machine learning to enhance software composition analysis for DevSecOps. Its platform enables security teams to identify vulnerabilities within open-source code, thereby allowing organizations to manage their security policies effectively. SourceClear offers an online portal for analyzing security issues, a comprehensive registry of open-source libraries with curated vulnerability information, and scanning agents that integrate into various development workflows. This integration provides developers with real-time insights into which libraries require updates and highlights any associated risks, streamlining the continuous delivery process. The company's clientele includes notable brands such as Uber, Atlassian, and LinkedIn, reflecting its strong presence in the technology, gaming, social media, retail, finance, and defense sectors. As of 2018, SourceClear operates as a subsidiary of Veracode, Inc.

Gitter

Seed Round in 2015
Gitter is an open-source chat and networking platform based in London, United Kingdom, designed to facilitate the management, growth, and connection of communities through messaging and content discovery. The platform offers instant messaging services that streamline community collaboration, making it easy for users to create, organize, and expand their communities with simple invitations. Gitter integrates with various tools such as GitHub, Trello, and Jenkins, enhancing its functionality and usability for developers. Its core mission is to connect developers, fostering meaningful relationships among users and the technologies they utilize.

MinIO

Seed Round in 2015
MinIO, Inc. is a developer of a high-performance, open-source distributed object storage server that is fully compatible with Amazon S3 APIs. Founded in 2014 and based in Palo Alto, California, the company focuses on providing a minimal object storage solution optimized for cloud-native workloads, making it suitable for deployment in both public and private clouds, including Kubernetes environments. MinIO's platform enables enterprises to manage unstructured data effectively, supporting various applications such as machine learning, analytics, and data backup and archival processes. The company also hosts a MinIO play server, allowing developers and system administrators to familiarize themselves with its S3-compatible object storage capabilities.

Nginx

Series B in 2014
Nginx, established in 2011, is a technology company that specializes in developing and maintaining the open-source web server NGINX. Its offerings include application delivery, load balancing, security, and API management solutions. Key products are NGINX Plus, a software load balancer and web server; NGINX Controller, for managing NGINX Plus; NGINX Unit, a dynamic application server; NGINX Web Application Firewall; and NGINX Amplify, a SaaS monitoring tool. Headquartered in San Francisco, with offices in Cork and Singapore, Nginx operates as a subsidiary of F5 Networks.

Elastic

Series C in 2014
Elastic is a technology company that develops and distributes the Elastic Stack, an open-source suite of products including Elasticsearch, a distributed search and analytics engine, along with Kibana, Beats, and Logstash. The company also offers X-Pack, a commercial plugin for the Elastic Stack, and Elastic Cloud, a family of SaaS offerings. With over 250 million cumulative downloads, Elastic's products are used by thousands of organizations worldwide for search, logging, metrics, and security use cases. Backed by prominent investors, Elastic has a distributed workforce of over 900 employees across 30 countries.

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.

Kong

Series A in 2013
Kong Inc., established in 2009 and headquartered in San Francisco, specializes in API management. It operates an API marketplace, facilitating the distribution, monetization, and management of cloud-based services. Kong's key products include Kong, an open-source API management layer; Kong Enterprise Edition, a scalable microservices API platform; and Galileo, an analytics tool for API and microservice monitoring. Additionally, Kong offers API Documentation and Developer Portal, aiding developers in creating and managing API projects securely. The company serves a global client base comprising consumers, providers, developers, and IT teams, promoting productivity, security, and performance in API development.

Hortonworks

Series C in 2013
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.

Elastic

Series B in 2013
Elastic is a technology company that develops and distributes the Elastic Stack, an open-source suite of products including Elasticsearch, a distributed search and analytics engine, along with Kibana, Beats, and Logstash. The company also offers X-Pack, a commercial plugin for the Elastic Stack, and Elastic Cloud, a family of SaaS offerings. With over 250 million cumulative downloads, Elastic's products are used by thousands of organizations worldwide for search, logging, metrics, and security use cases. Backed by prominent investors, Elastic has a distributed workforce of over 900 employees across 30 countries.

OpenX

Series E in 2013
OpenX, headquartered in Pasadena, California, is a digital advertising technology company. It offers a platform that enables businesses to manage and optimize their ad revenue across various connected screens and formats. OpenX's technology aggregates and values consumer interest in real-time, allowing marketers to reach specific audiences. The company serves over 30,000 brands, 1,200 websites, and 2,000 premium mobile apps globally. Additionally, OpenX provides publishers with an open-source ad server solution, reducing their reliance on Google AdSense by offering access to a wide variety of ad networks.

Big Switch Networks

Series B in 2012
Big Switch Networks Inc. is a provider of data center networking technologies, focusing on delivering solutions for on-premises enterprise cloud, public cloud, and multi-cloud environments. Established in 2010 and based in Santa Clara, California, the company offers a range of products, including Big Monitoring Fabric, which creates security chains for inline traffic and provides comprehensive visibility across an organization, and Big Cloud Fabric, which utilizes open networking and software-defined networking technology. These solutions aim to enhance operational efficiency, improve business agility, and lower networking costs for organizations of all sizes. Big Switch Networks is also recognized for its contributions to open source communities and maintains strategic partnerships with notable companies in the industry. The company operates globally, with a presence in over 25 countries, and has been a subsidiary of Arista Networks since 2020.

Pentaho

Series C in 2012
Pentaho Corporation is a data integration and business analytics company that specializes in providing an open-source platform designed for big data deployments. Founded in 2004 and headquartered in Orlando, Florida, with an additional office in Tokyo, Japan, Pentaho offers a comprehensive suite of tools that enable organizations to analyze, visualize, and report on data from various sources. The platform includes capabilities for data extraction, preparation, and blending, as well as embedded analytics solutions that integrate seamlessly into applications and processes. Pentaho's services are utilized across multiple industries, including healthcare, retail, and financial services, and it supports organizations in harnessing the value of big data to enhance operational efficiency and drive actionable insights. The company is recognized for its leadership in open-source analytics projects and serves a diverse client base, including over 1,200 enterprise customers globally. Pentaho operates as a subsidiary of Hitachi Data Systems Corporation.

Hortonworks

Series B in 2011
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.

Kong

Seed Round in 2011
Kong Inc., established in 2009 and headquartered in San Francisco, specializes in API management. It operates an API marketplace, facilitating the distribution, monetization, and management of cloud-based services. Kong's key products include Kong, an open-source API management layer; Kong Enterprise Edition, a scalable microservices API platform; and Galileo, an analytics tool for API and microservice monitoring. Additionally, Kong offers API Documentation and Developer Portal, aiding developers in creating and managing API projects securely. The company serves a global client base comprising consumers, providers, developers, and IT teams, promoting productivity, security, and performance in API development.

OpenX

Series D in 2011
OpenX, headquartered in Pasadena, California, is a digital advertising technology company. It offers a platform that enables businesses to manage and optimize their ad revenue across various connected screens and formats. OpenX's technology aggregates and values consumer interest in real-time, allowing marketers to reach specific audiences. The company serves over 30,000 brands, 1,200 websites, and 2,000 premium mobile apps globally. Additionally, OpenX provides publishers with an open-source ad server solution, reducing their reliance on Google AdSense by offering access to a wide variety of ad networks.

Big Switch Networks

Series A in 2011
Big Switch Networks Inc. is a provider of data center networking technologies, focusing on delivering solutions for on-premises enterprise cloud, public cloud, and multi-cloud environments. Established in 2010 and based in Santa Clara, California, the company offers a range of products, including Big Monitoring Fabric, which creates security chains for inline traffic and provides comprehensive visibility across an organization, and Big Cloud Fabric, which utilizes open networking and software-defined networking technology. These solutions aim to enhance operational efficiency, improve business agility, and lower networking costs for organizations of all sizes. Big Switch Networks is also recognized for its contributions to open source communities and maintains strategic partnerships with notable companies in the industry. The company operates globally, with a presence in over 25 countries, and has been a subsidiary of Arista Networks since 2020.

Gluster

Series B in 2010
Gluster is an open source, distributed file system that is capable of scaling to several petabytes and handling many clients. In order to simplify the task of storing and managing the growth of unstructured data, Gluster has created and delivered open source scale-out cloud storage software. It allows enterprises to combine large numbers of commodity storage and compute resources into a high performance, virtualized, and centrally managed pool. Gluster has been deployed by hundreds of global enterprises and service providers across industries including media, healthcare, consumer internet, energy, and biotech. It is based on a stackable user space design and can deliver high performance for diverse workloads. It has many attributes that includes: Scalability and Performance, Global Namespace, Elastic Hash Algorithm, Elastic Volume Manager, and Standards-based. Gluster is privately-held and headquartered in Sunnyvale, California.

Big Switch Networks

Seed Round in 2010
Big Switch Networks Inc. is a provider of data center networking technologies, focusing on delivering solutions for on-premises enterprise cloud, public cloud, and multi-cloud environments. Established in 2010 and based in Santa Clara, California, the company offers a range of products, including Big Monitoring Fabric, which creates security chains for inline traffic and provides comprehensive visibility across an organization, and Big Cloud Fabric, which utilizes open networking and software-defined networking technology. These solutions aim to enhance operational efficiency, improve business agility, and lower networking costs for organizations of all sizes. Big Switch Networks is also recognized for its contributions to open source communities and maintains strategic partnerships with notable companies in the industry. The company operates globally, with a presence in over 25 countries, and has been a subsidiary of Arista Networks since 2020.

Zend

Series E in 2010
Zend Technologies Ltd. specializes in solutions for developing, deploying, and managing business-critical PHP applications, which are instrumental in powering a significant portion of the world's websites. Founded in 1999 and headquartered in Cupertino, California, Zend offers a range of products including Z-Ray, Zend Server, Zend Studio, Zend Guard, and Apigility, catering to the entire lifecycle of PHP applications. These tools assist developers by providing debugging, automation, and security features, enabling them to create high-quality applications efficiently. Zend’s solutions are utilized by over 35,000 companies globally, from small businesses to large enterprises, and are available through both direct sales and partnerships. The company has established strategic alliances with major technology firms including Amazon Web Services, IBM, and Microsoft, enhancing its service offerings. With additional offices in Europe and Israel, Zend continues to play a pivotal role in the PHP development landscape.

Cloud.com

Series B in 2010
Cloud.com is a venture-backed startup located in Cupertino that specializes in developing open source cloud orchestration software. The company's primary product, CloudStack, facilitates the creation and management of both public and private cloud computing environments, enabling service providers and enterprises to deploy Infrastructure as a Service (IaaS) offerings akin to those of major cloud platforms. CloudStack is available in three versions: the Enterprise Edition, the Service Provider Edition, and the open-source Community Edition. The company rebranded from VMOps to Cloud.com in May 2010 as it emerged from stealth mode, positioning itself as a key player in the cloud computing sector.

OpenX

Series C in 2009
OpenX, headquartered in Pasadena, California, is a digital advertising technology company. It offers a platform that enables businesses to manage and optimize their ad revenue across various connected screens and formats. OpenX's technology aggregates and values consumer interest in real-time, allowing marketers to reach specific audiences. The company serves over 30,000 brands, 1,200 websites, and 2,000 premium mobile apps globally. Additionally, OpenX provides publishers with an open-source ad server solution, reducing their reliance on Google AdSense by offering access to a wide variety of ad networks.

Gluster

Series A in 2008
Gluster is an open source, distributed file system that is capable of scaling to several petabytes and handling many clients. In order to simplify the task of storing and managing the growth of unstructured data, Gluster has created and delivered open source scale-out cloud storage software. It allows enterprises to combine large numbers of commodity storage and compute resources into a high performance, virtualized, and centrally managed pool. Gluster has been deployed by hundreds of global enterprises and service providers across industries including media, healthcare, consumer internet, energy, and biotech. It is based on a stackable user space design and can deliver high performance for diverse workloads. It has many attributes that includes: Scalability and Performance, Global Namespace, Elastic Hash Algorithm, Elastic Volume Manager, and Standards-based. Gluster is privately-held and headquartered in Sunnyvale, California.

Dimdim

Series B in 2008
Dimdim is a developer of web conferencing solutions that offers a browser-based service built on an open-source platform. This allows users to download and install the open-source code on their own servers, ensuring flexibility and control over their conferencing needs. Attendees can participate in meetings without the requirement to download additional software. Dimdim's platform enables presenters to share their desktops, display slides, and engage in audio and video communication, along with chat features. The company provides a range of products, including Dimdim Pro and Dimdim Enterprise, which facilitate content sharing and management, web collaboration, and broadcasting capabilities.

OpenX

Series B in 2007
OpenX, headquartered in Pasadena, California, is a digital advertising technology company. It offers a platform that enables businesses to manage and optimize their ad revenue across various connected screens and formats. OpenX's technology aggregates and values consumer interest in real-time, allowing marketers to reach specific audiences. The company serves over 30,000 brands, 1,200 websites, and 2,000 premium mobile apps globally. Additionally, OpenX provides publishers with an open-source ad server solution, reducing their reliance on Google AdSense by offering access to a wide variety of ad networks.

OpenX

Series A in 2007
OpenX, headquartered in Pasadena, California, is a digital advertising technology company. It offers a platform that enables businesses to manage and optimize their ad revenue across various connected screens and formats. OpenX's technology aggregates and values consumer interest in real-time, allowing marketers to reach specific audiences. The company serves over 30,000 brands, 1,200 websites, and 2,000 premium mobile apps globally. Additionally, OpenX provides publishers with an open-source ad server solution, reducing their reliance on Google AdSense by offering access to a wide variety of ad networks.

Dimdim

Series A in 2007
Dimdim is a developer of web conferencing solutions that offers a browser-based service built on an open-source platform. This allows users to download and install the open-source code on their own servers, ensuring flexibility and control over their conferencing needs. Attendees can participate in meetings without the requirement to download additional software. Dimdim's platform enables presenters to share their desktops, display slides, and engage in audio and video communication, along with chat features. The company provides a range of products, including Dimdim Pro and Dimdim Enterprise, which facilitate content sharing and management, web collaboration, and broadcasting capabilities.

SourceLabs

Venture Round in 2006
SourceLabs specializes in providing tools and services designed to support open-source software, with a particular focus on Linux. The company offers subscriptions that include enterprise support, maintenance, and upgrades for various open-source software solutions. Notably, SourceLabs is known for its proprietary Open Source Management System and its involvement in SWiK, a community-driven wiki website dedicated to documenting open-source software. Additionally, the company develops infrastructure software systems tailored for enterprise information technology industries.

Zend

Series D in 2006
Zend Technologies Ltd. specializes in solutions for developing, deploying, and managing business-critical PHP applications, which are instrumental in powering a significant portion of the world's websites. Founded in 1999 and headquartered in Cupertino, California, Zend offers a range of products including Z-Ray, Zend Server, Zend Studio, Zend Guard, and Apigility, catering to the entire lifecycle of PHP applications. These tools assist developers by providing debugging, automation, and security features, enabling them to create high-quality applications efficiently. Zend’s solutions are utilized by over 35,000 companies globally, from small businesses to large enterprises, and are available through both direct sales and partnerships. The company has established strategic alliances with major technology firms including Amazon Web Services, IBM, and Microsoft, enhancing its service offerings. With additional offices in Europe and Israel, Zend continues to play a pivotal role in the PHP development landscape.

Pentaho

Series B in 2006
Pentaho Corporation is a data integration and business analytics company that specializes in providing an open-source platform designed for big data deployments. Founded in 2004 and headquartered in Orlando, Florida, with an additional office in Tokyo, Japan, Pentaho offers a comprehensive suite of tools that enable organizations to analyze, visualize, and report on data from various sources. The platform includes capabilities for data extraction, preparation, and blending, as well as embedded analytics solutions that integrate seamlessly into applications and processes. Pentaho's services are utilized across multiple industries, including healthcare, retail, and financial services, and it supports organizations in harnessing the value of big data to enhance operational efficiency and drive actionable insights. The company is recognized for its leadership in open-source analytics projects and serves a diverse client base, including over 1,200 enterprise customers globally. Pentaho operates as a subsidiary of Hitachi Data Systems Corporation.

AllPeers

Series A in 2006
AllPeers is an open-source software extension for the Mozilla Firefox browser that allows users to share files, folders, web page images, and links from right within their Firefox browsers using P2P (peer-to-peer) technology. The AllPeers Navigator enables users to maintain contacts, chat, and share items with the people on their lists. Users can include a subject line and a text message when sharing items. When other users share items with them, a notification appears in the bottom right hand corner of their browser window. The ""add a contact"" button lets users import contacts from Gmail, Hotmail, Outlook, and more. Files, folders, and images that users wish to share can be dragged and dropped into the Share window. Links to web pages can be shared by dragging and dropping the page's browser tab into the Share window. Download location and bandwidth speed can be set using the toolbar's Preferences button. AllPeers was launched by Cedric Maloux and Matthew Gertner and is operated from Oxford, United Kingdom.

Pentaho

Series A in 2005
Pentaho Corporation is a data integration and business analytics company that specializes in providing an open-source platform designed for big data deployments. Founded in 2004 and headquartered in Orlando, Florida, with an additional office in Tokyo, Japan, Pentaho offers a comprehensive suite of tools that enable organizations to analyze, visualize, and report on data from various sources. The platform includes capabilities for data extraction, preparation, and blending, as well as embedded analytics solutions that integrate seamlessly into applications and processes. Pentaho's services are utilized across multiple industries, including healthcare, retail, and financial services, and it supports organizations in harnessing the value of big data to enhance operational efficiency and drive actionable insights. The company is recognized for its leadership in open-source analytics projects and serves a diverse client base, including over 1,200 enterprise customers globally. Pentaho operates as a subsidiary of Hitachi Data Systems Corporation.

The Qt Company

Series B in 2005
Qt Group Oyj is a software company headquartered in Espoo, Finland, that specializes in developing, productizing, and licensing software development tools under both commercial and open-source licenses. The company offers a robust framework of libraries and tools, known as Qt, which enables developers to create applications and user interfaces for desktop, embedded, and mobile platforms. Qt is widely utilized in various sectors, including consumer electronics, automotive, industrial automation, and healthcare, serving clients across over 70 industries globally. In addition to its development framework, Qt Group provides professional services such as consulting, training, and technical support, helping customers optimize their software solutions. With a presence in multiple countries, including Germany, the United States, Japan, and China, the company supports a large community of developers worldwide, enhancing the versatility and reach of its technology.

SourceLabs

Series A in 2004
SourceLabs specializes in providing tools and services designed to support open-source software, with a particular focus on Linux. The company offers subscriptions that include enterprise support, maintenance, and upgrades for various open-source software solutions. Notably, SourceLabs is known for its proprietary Open Source Management System and its involvement in SWiK, a community-driven wiki website dedicated to documenting open-source software. Additionally, the company develops infrastructure software systems tailored for enterprise information technology industries.

Zend

Series C in 2004
Zend Technologies Ltd. specializes in solutions for developing, deploying, and managing business-critical PHP applications, which are instrumental in powering a significant portion of the world's websites. Founded in 1999 and headquartered in Cupertino, California, Zend offers a range of products including Z-Ray, Zend Server, Zend Studio, Zend Guard, and Apigility, catering to the entire lifecycle of PHP applications. These tools assist developers by providing debugging, automation, and security features, enabling them to create high-quality applications efficiently. Zend’s solutions are utilized by over 35,000 companies globally, from small businesses to large enterprises, and are available through both direct sales and partnerships. The company has established strategic alliances with major technology firms including Amazon Web Services, IBM, and Microsoft, enhancing its service offerings. With additional offices in Europe and Israel, Zend continues to play a pivotal role in the PHP development landscape.

MySQL

Series B in 2003
MySQL is an open-source database company founded in 1995 by David Axmark and Michael Widenius, located in Cupertino, California. It specializes in providing scalable database solutions for web-based and embedded applications. MySQL offers a range of products, including enterprise-level support packages that come with comprehensive service options, alongside free downloads of its latest software versions. The company's online platform features a variety of resources such as forums, articles, documentation, and community support. MySQL's software is designed to enhance scalability, security, reliability, and uptime for businesses, facilitating increased agility and cost reduction through features like network monitoring, production support services, and database clustering architecture for mission-critical deployments.
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