All Industries

Top Open Source Companies

184 Open Source companies, sorted by total funding raised.

MindsDB

AI that works at work. Turnkey. Private.

San Francisco, United States11–50Artificial Intelligence, Developer Tools
Extension Round·$54.1M·Aug 2023
PlanetScale

PlanetScale was founded in 2018 by the creators of Vitess - an open source project born at Youtub...

San Francisco, United States51–200Infrastructure, Databases
Series C·$50.0M·Nov 2021
Alokai

Frontend Platform for eCommerce

Warsaw, Poland51–200Developer Tools, E-Commerce
Extension Round·$38.9M·Mar 2023
Mastra

The Typescript agent framework, by the developers of Gatsby

San Francisco, United States1–10Artificial Intelligence, Developer Tools
Series A·$35.0M·May 2026
CloudQuery

The open-source cloud asset inventory powered by SQL.

Tel Aviv, Israel11–50Cloud, Data & Analytics
Series A·$34.5M·Jun 2025
Cal.com

Open-source scheduling infrastructure platform and Calendly alternative, offering self-hosted and...

San Francisco, United States11–50SaaS, Open Source
Seed·$32.4M·Sep 2022
Enso

Self-Service Data Prep and Blend Built for Data Teams.

Kraków, Poland11–50Open Source, SaaS
Series A·$30.5M·Apr 2022
Robocorp

Robocorp is a cloud platform for robotic process automation (RPA) and open source RPA tools Cloud...

San Francisco Bay Area, United States11–50Cloud, Open Source
Series A·$26.6M·Jun 2021
Project Discovery

Open-source cybersecurity company building tools for automated asset discovery and vulnerability ...

San Francisco, United States11–50Cybersecurity, Open Source
Series A·$25.0M·Aug 2023
Formance

Open Source Infrastructure for the Financial Internet

Paris, France11–50Developer Tools, Fintech
Series A·$24.1M·Jan 2025
Mem0

The Memory layer for your AI apps

San Francisco, United States1–10Artificial Intelligence, Developer Tools
Seed·$23.9M·Oct 2025
GrowthBook

Open source feature flagging and A/B testing

Palo Alto, United States11–50Analytics, Developer Tools
Series A·$23.1M·Jun 2025
Lago

Open Source Metering and Usage Based Billing

Paris, France11–50FinOps, Fintech
Series A·$22.1M·Mar 2024
Okteto

Cloud Development Environments with one click

San Francisco, United States11–50Developer Tools, Open Source
Series A·$21.0M·Feb 2022
Lightdash

The open source Looker alternative

San Francisco, United States1–10Analytics, Data & Analytics
Series A·$19.4M·Oct 2024
Trigger.dev

Open source background jobs with no timeouts.

London, United Kingdom1–10Developer Tools, SaaS
Series A·$19.0M·Dec 2025
Infisical

Open-source secrets manager for developers

San Francisco, United States11–50Cybersecurity, Developer Tools
Series A·$18.8M·Jun 2025
Infracost

Shift FinOps Left: tell engineers how much code changes will cost…

1–10Cybersecurity, Developer Tools
Series A·$17.2M·Nov 2025
Browser Use

Open Source Web Agents

San Francisco, United States1–10Automation, Open Source
Seed·$17.0M·Mar 2025
Firecrawl

The easiest way to extract AI ready data from the web

San Francisco, United States1–10Artificial Intelligence, Developer Tools
Series A·$16.2M·Aug 2025
authzed

Open Source, Google Zanzibar-inspired permissions database

New York, United States11–50Cybersecurity, Data & Analytics
Series A·$15.9M·Jun 2024
Artie

Software that streams data from databases to warehouses in real-time

San Francisco, United States1–10Data & Analytics, Developer Tools
Series A·$15.3M·Jan 2025
BotCity

Open Source Python RPA + orchestration for tech teams.

San Francisco, United States11–50Artificial Intelligence, Automation
Series A·$15.0M·Sep 2025
QuestDB

The fastest open source time series database

London, United Kingdom11–50Analytics, Data & Analytics
Series A·$14.3M·Nov 2021
FernAcquired

Instantly offer SDKs and API Docs

New York, United States11–50Developer Tools, Open Source
Series A·$13.0M·Apr 2025