All Industries

Top Open Source Companies

179 Open Source companies, sorted by total funding raised.

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
Svix

Enterprise ready webhooks service, open-source and in the cloud

New York, United States11–50Developer Tools, Open Source
Series A·$13.0M·Feb 2023