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The Full List of 26 Open Source Unicorn Startups (2026)

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The open-source sector has produced a big group of billion-dollar startups.

The list includes recent entrants like Mistral AI, which reached a $14B valuation within a year of its 2023 launch. It also features established companies such as Grafana Labs, valued at $6B.

Below is the full list of 26 Open Source unicorn startups at this time.

Top 10 Most Valuable Open Source Unicorns

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Mistral AI builds a suite of large language models, including both open-source and proprietary options for developers and enterprises. Their models are recognized for their strong performance and efficiency, making advanced AI more accessible.

Valuation$14B (Joined December 2023)
HeadquartersParis, Ile-de-France, France
Year Founded2023
FoundersArthur Mensch, Charles Gorintin, Guillaume Lample, Jean Charles Samuelian, Timothee Lacroix
Funding Amount€2.8B
Company SizeLarge Team (251-1,000)
Last Funding StatusSeries C
Top InvestorsGeneral Catalyst, Bpifrance, NVIDIA, LocalGlobe, Andreessen Horowitz

Grafana Labs offers a composable observability stack built around its popular open-source visualization tool, Grafana. Teams use their software to bring together metrics, logs, and traces for unified monitoring and analysis.

Valuation$6B (Joined March 2021)
HeadquartersNew York, New York, United States
Year Founded2014
FoundersAnthony Woods, Raj Dutt, Torkel Ödegaard
Funding Amount$805.2M
Company SizeMajor Organization (1,001-5,000)
Last Funding StatusSeries D
Top InvestorsCoatue, Sequoia Capital, CapitalG, K5 Global, Lightspeed Venture Partners

Odoo builds a comprehensive suite of open-source business applications that handle needs like CRM, eCommerce, accounting, and inventory. The platform's all-in-one, integrated nature allows companies to manage their entire operations from a single place.

Valuation$5.3B (Joined July 2021)
HeadquartersLouvain-la-neuve, Vlaams-Brabant, Belgium
Year Founded2005
FoundersFabien Pinckaers
Funding Amount$1.1B
Company SizeEnterprise Organization (5,001+)
Last Funding StatusPrivate Equity
Top InvestorsSofinnova Partners, General Atlantic, Sequoia Capital, HarbourVest Partners, BlackRock

Sonar creates a suite of tools for developers focused on writing clean, high-quality code. Their products provide static code analysis that integrates directly into development workflows, offering both open-source and commercial solutions to catch bugs and security issues early.

Valuation$5B
HeadquartersGeneva, Geneve, Switzerland
Year Founded2008
FoundersFreddy Mallet, Olivier Gaudin, Simon Brandhof
Funding Amount$457M
Company SizeLarge Team (251-1,000)
Last Funding StatusSeries B
Top InvestorsAdvent International, Insight Partners, General Catalyst, Permira

Hugging Face operates a collaborative platform for the AI community to build, train, and deploy machine learning models. They are widely known for their open-source libraries and for hosting a massive repository of models and datasets that power AI applications.

Valuation$5B (Joined May 2022)
HeadquartersBrooklyn, New York, United States
Year Founded2016
FoundersClément Delangue, Julien Chaumond, Thomas Wolf
Funding Amount$395.2M
Company SizeMid-Size Team (51-250)
Last Funding StatusVenture Round
Top InvestorsNVIDIA, Sequoia Capital, SV Angel, IBM, Lux Capital

Chainguard builds minimal, hardened container base images to help developers secure the software supply chain. These images are built with a strict focus on having zero-known vulnerabilities, giving teams a safer foundation for building and running applications.

Valuation$4B (Joined July 2024)
HeadquartersKirkland, Washington, United States
Year Founded2021
FoundersDan Lorenc, Kim Lewandowski, Ville Aikas
Funding Amount$892M
Company SizeLarge Team (251-1,000)
Last Funding StatusSeries D
Top InvestorsSpark Capital, General Catalyst, Sequoia Capital, IVP, Lightspeed Venture Partners

Starburst builds a data lakehouse platform that gives teams a single point of access to all their data, no matter where it lives. Their platform uses the open-source Trino query engine to help companies analyze information across cloud, on-prem, and hybrid systems without moving it.

Valuation$3.35B (Joined January 2021)
HeadquartersBoston, Massachusetts, United States
Year Founded2017
FoundersAnu Sudarsan, Kamil Bajda-Pawlikowski, Matt Fuller, Wojciech Biela
Funding Amount$414M
Company SizeLarge Team (251-1,000)
Last Funding StatusVenture Round
Top InvestorsIndex Ventures, Coatue, B Capital, Andreessen Horowitz, Citi

Together AI provides a cloud platform dedicated to building and running open-source generative AI models. Their infrastructure gives developers the power to train, fine-tune, and deploy these models at scale.

Valuation$3.3B (Joined March 2024)
HeadquartersSan Francisco, California, United States
Year Founded2022
FoundersCe Zhang, Chris Re, Percy Liang, Vipul Ved Prakash
Funding Amount$533.5M
Company SizeMid-Size Team (51-250)
Last Funding StatusSeries B
Top InvestorsNVIDIA, General Catalyst, Lux Capital, Emergence Capital, Alumni Ventures

Aiven built a managed platform for open-source data technologies, making it simple for businesses to run tools like Kafka and PostgreSQL on any cloud. This frees up developer teams from managing complex infrastructure so they can focus on building applications.

Valuation$3.21B (Joined October 2021)
HeadquartersHelsinki, Southern Finland, Finland
Year Founded2016
FoundersHannu Valtonen, Heikki Nousiainen, Oskari Saarenmaa
Funding Amount$420M
Company SizeLarge Team (251-1,000)
Last Funding StatusSeries D
Top InvestorsSalesforce Ventures, IVP, Lifeline Ventures, BlackRock, Atomico

Temporal offers an open-source platform that gives developers the tools to build highly reliable and scalable applications. The platform is known for simplifying the code behind complex, stateful workflows, ensuring they can run durably from start to finish.

Valuation$3B
HeadquartersBellevue, Washington, United States
Year Founded2019
FoundersMaxim Fateev, Samar Abbas
Funding Amount$454.5M
Company SizeMid-Size Team (51-250)
Last Funding StatusSeries C
Top InvestorsMadrona, Index Ventures, StepStone Group, Sequoia Capital, Tiger Global Management

The Remaining 16 Open Source Unicorns

The ten most valuable companies get much of the attention, but they represent just a part of the story. The other startups on this list have raised over $4 billion combined. While most of these companies are based in the US, founders in countries like India and China are also building billion-dollar businesses. Here’s a look at the other startups that have earned their spot on the list.

Unicorn StartupCountryYear FoundedAmount RaisedValuation
Sysdig logo SysdigUnited States2013$729.5M$3B
PingCAP logo PingCAPUnited States2015$641.6M$3B
Redis logo RedisUnited States2011$356.8M$2B
Kong logo KongUnited States2017$344.1M$2B
Anaconda logo AnacondaUnited States2012$233M$2B
Airbyte logo AirbyteUnited States2020$181.2M$2B
Apollo GraphQL logo Apollo GraphQLUnited States2016$152M$2B
DataStax logo DataStaxUnited States2010$342.6M$2B
1inch logo 1inchSaint Kitts and Nevis2020$189.8M$2B
Kylinsoft logo KylinsoftChina2020CN¥3B$2B
Yugabyte logo YugabyteUnited States2016$291M$1.3B
Anyscale logo AnyscaleUnited States2019$259M$1B
PostHog logo PostHogUnited States2020$182.2M$1B
MinIO logo MinIOUnited States2014$126.3M$1B
Panther logo PantherUnited States2018$140.5M$1B
Hasura logo HasuraIndia2017$136.5M$1B

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