68 Best Open Source Software Startups to Watch in 2025

The Definitive Seedtable Ranking of Open Source Software Startups

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 134 start-ups with an aggregate funding of $11.4b. The average funding per company in this subset is $167.9m.

Last update to the database: Feb 18, 2025. See changelog.

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10

Funding Rounds

$1.6b

Money raised

Snyk is a technology company offering a software development security platform using open-source code.

4

Funding Rounds

$165.0m

Money raised

Elastic is a software company that creates products for searching for information on the Internet. It was founded in 2012 and is headquartered in San Francisco and Amsterdam.

9

Funding Rounds

$2.5b

Money raised

Cockroachs Labs is the New York based company behind Cockroach DB, an open source, distributed SQL database.

1

Funding Rounds

$84.0m

Money raised

Checkmarx is a company that makes static code analysis software.

Location:

Key people:

8

Funding Rounds

$251.1m

Money raised

H2O.ai is the creator of H2O, an open-source machine learning and artificial intelligence platform.

8

Funding Rounds

$180.7m

Money raised

Bugcrowd is an enterprise cloud computing and computer security crowdsourcing company that offers a platform for security testing, web, mobile, source code, and client-side applications.

5

Funding Rounds

$90.0m

Money raised

Strapi is a company offering an open-source headless content management system (CMS).

6

Funding Rounds

$97.1m

Money raised

Coder is an Austin, Texas-based developer of open-source tools and an enterprise platform to configure, secure, and scale development environments.

Location:

Key people:

6

Funding Rounds

$237.0m

Money raised

Database management system, relational, open source, community developed fork of mysql

4

Funding Rounds

$12.2m

Money raised

RethinkDB provides an open-source distributed NoSQL document-oriented database storing JSON documents and scaling data for applications.

1

Funding Rounds

$14.5m

Money raised

CasperLabs is a Zug-based company and blockchain platform founded in 2018 by Mrinal Manohar, Clifford Sarkin and Medha Parlikar.

Location:

Zug

Key people:

2

Funding Rounds

$300.0m

Money raised

ClickHouse is an open-source database management software developed originally by Yandex before being incorporated in 2021 by Aaron Katz, Alexey Milovidov, and Yury Izrailevsky.

Key people:

8

Funding Rounds

$729.5m

Money raised

Sysdig is a unified approach to container security, microservices monitoring, and forensics, with Kubernetes, Prometheus, and Falco support.

Key people:

7

Funding Rounds

$225.5m

Money raised

Sentry is cross-platform application monitoring, with a focus on error reporting.

8

Funding Rounds

$362.8m

Money raised

Docker provides an open-source project for deploying applications inside software containers.

5

Funding Rounds

$162.5m

Money raised

A company offering a communications platform allows developers to quickly build features that connect to every email, calendar, and contacts provider in the world.

5

Funding Rounds

$77.8m

Money raised

Wave Financial is a Toronto-based financial services and accounting software company.

10

Funding Rounds

$356.8m

Money raised

Redis is a Mountain View, California-based developer of an open-source, in-memory database platform, the open-source Redis, and provides enterprise software as a cloud service built upon the product.

2

Funding Rounds

$122.5m

Money raised

Together is a San Francisco-based developer of a decentralized cloud for artificial intelligence.

6

Funding Rounds

$80.4m

Money raised

Rasa is a company that offers a conversational AI platform for customized conversations at scale.

4

Funding Rounds

$60.2m

Money raised

Rapid7 is a Boston-based cybersecurity company providing security data and analytics solutions.

3

Funding Rounds

$25.0m

Money raised

SmartBear Software is a company developing tools for various software development and API management tasks.

5

Funding Rounds

$169.2m

Money raised

Teleport, formerly known as Gravitational, is a company developing cloud-based software for automating operations.

3

Funding Rounds

$925.0k

Money raised

An artificial intelligence company and data automation provider developing solutions for combating transnational cybercrime, government investigations, law enforcement, and human trafficking.

Location:

Key people:

1

Funding Rounds

$17.5m

Money raised

Stacklok is a Seattle-based software developing offering tools to help developers and open-source software communities keep their software secure and choose safe dependencies.

Location:

Key people:

1

Funding Rounds

$150.0k

Money raised

A technology company providing a way to execute WebAssembly files universally.

4

Funding Rounds

$64.5m

Money raised

Alfresco is a software company founded in 2005 by John Newton, John Newton and John Powell.

3

Funding Rounds

$82.5m

Money raised

Lightning Labs is a software development company based in San Francisco developing software for the Lightning Network.

Key people:

4

Funding Rounds

$250.0k

Money raised

Local Motors is an American motor vehicle manufacturing company that is interested in providing low-volume vehicle manufacturing

7

Funding Rounds

$829.2m

Money raised

Grafana Labs is the company behind Grafana, Loki, Mimir and Tempo, the leading open source software for visualizing operational data.

Key people:

3

Funding Rounds

$33.9m

Money raised

A software company supplying open-source management software and infrastructure for open-source development teams.

Location:

Key people:

1

Funding Rounds

$30.0m

Money raised

An open source machine learning library, a scientific computing framework and a scripting language written in Lua, LuaJIT, C/CUDA

4

Funding Rounds

$120.9m

Money raised

Sonatype is a Fulton, Maryland-based cybersecurity company helping enterprises get precise intelligence about open source components and software security.

5

Funding Rounds

$436.6m

Money raised

Open-source enterprise resource planning (ERP) software provider.

3

Funding Rounds

$48.4m

Money raised

Gatsby is a framework and Jamstack delivery platform for building websites.

1

Funding Rounds

$25.0m

Money raised

Operator of an API integration platform intended to offer an effective approach to business transformation. The company's platform connects SaaS, on-premise and cloud applications and infuses artificial intelligence into any business process, enabling companies to reuse business-critical applications and data to bring new offerings to market.

Key people:

2

Funding Rounds

$1.5m

Money raised

DataNexus is a company founded in 2015.

5

Funding Rounds

$200.0k

Money raised

Ario is a Norfolk, Virginia-based company founded in 2016 by Jacob Galito.

7

Funding Rounds

$307.0m

Money raised

Yugabyte is an open-source distributed SQL database for customers in industries such as cybersecurity, financial markets, and IoT.

8

Funding Rounds

$93.9m

Money raised

Company that develops hybrid it monitoring and analytics software

4

Funding Rounds

$23.5m

Money raised

Seldon is an artificial Intelligence company founded in 2002 by Alex Housley.

2

Funding Rounds

$2.7m

Money raised

PredictionIO is a company that offers a machine learning open source stack.

1

Funding Rounds

$43.0m

Money raised

Open source web server and a reverse proxy server; acquired by F5.

1

Funding Rounds

$4.0m

Money raised

TinyMCE is a Palo Alto, California-based company founded in 2015.

9

Funding Rounds

$71.0m

Money raised

Black Duck provides an open source software management and security platform for enterprises.

2

Funding Rounds

$14.5m

Money raised

A company building deep learning solutions for fraud detection, image recognition and predictive analytics

2

Funding Rounds

$50.0k

Money raised

binpress is a company founded in 2010 by Eran Galperin.

6

Funding Rounds

$334.0m

Money raised

Contrast Security is an application Security Platform founded in 2014.

2

Funding Rounds

$26.0m

Money raised

Pachyderm is a company providing an open source analytics engine that uses Docker containers for distributed computations. It participated in the W15 cohort of Y Combinator.

Location:

Key people:

2

Funding Rounds

$18.0m

Money raised

Openbravo is a platform offering open source business management applications founded in 2006 by Name.

1

Funding Rounds

$5.0m

Money raised

Company offers a software platform for data science teams that unites data prep, machine learning, and predictive model deployment.

2

Funding Rounds

$7.0m

Money raised

A software company offering an open-source serverless content management system (CMS).

4

Funding Rounds

$14.7m

Money raised

Platform that offers an open-source e-commerce solution to power over 250,000 stores worldwide.

3

Funding Rounds

$73.5m

Money raised

Hazelcast is a Palo Alto-based software development company and in-memory computing platform.

2

Funding Rounds

$32.0m

Money raised

Qubole is a company founded in 2011.

2

Funding Rounds

$20.0m

Money raised

The ecosystem of software-defined drones, payloads, and apps within a single easy to use platform.

Location:

Key people:

4

Funding Rounds

$182.3m

Money raised

Camunda's platform solution is a Java-based framework that can be used as a standalone process engine server or integrated with custom Java applications.

5

Funding Rounds

$36.6m

Money raised

Nuxeo is a software company offering a content services and management platform.

6

Funding Rounds

$139.0m

Money raised

Tidelift is a Boston-based company founded in 2017 by Havoc Pennington, Luis Villa and Donald Fischer.

Location:

Key people:

2

Funding Rounds

$600.0k

Money raised

Eldarion is a men in tolkien's legendarium founded in 2009 by James Tauber.

1

Funding Rounds

$118.0k

Money raised

Appsembler is a company founded in 2011 by Nate Aune.

Key people:

1

Funding Rounds

$975.0k

Money raised

LearnBoost is a San Francisco-based company founded in 2010 by Guillermo Rauch, Thianh Lu and Rafael Corrales.

3

Funding Rounds

$17.8m

Money raised

Zettaset's XCrypt Data Encryption Platform delivers proven protection for Object, Relational/SQL, NoSQL, and Hadoop data stores...in the cloud and on-premises.

4

Funding Rounds

$32.0m

Money raised

Dgraph is an open source, low latency, high throughput, native and distributed graph database.

1

Funding Rounds

$15.0m

Money raised

Sencha is a company founded in 2007.

8

Funding Rounds

$1.7m

Money raised

Robotic Materials is a computer software company that offers robot-native manufacturing execution and time-keeping systems.

Location:

Key people:

2

Funding Rounds

$7.8m

Money raised

DreamFactory Software is a California-based company founded in 2005.

3

Funding Rounds

$370.0m

Money raised

PingCAP is a company founded in 2015.

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