All Industries

Top Open Source Companies

179 Open Source companies, sorted by total funding raised.

Medplum

API first electronic health record (EHR) that is open source

San Francisco, United States1–10Developer Tools, Healthcare
Grant·May 2023
T
Tokutek

Developer of high-performance, scalable database technology including TokuDB — an open source, hi...

United StatesDatabases, Open Source
Funding undisclosed
Dittofeed

Open-source customer engagement & messaging automation

Los Angeles, United States1–10Open Source
Seed·Jan 2024
Netmaker

Automated WireGuard networks for distributed systems and Kubernetes

Asheville, United States1–10Cybersecurity, Developer Tools
Seed·Oct 2022
Patched

Open-source workflow automation for dev teams

1–10Artificial Intelligence, Developer Tools
Funding undisclosed
ED
Edge DB

Open-source graph-relational database addressing SQL ergonomic limitations with type safety and p...

United StatesDatabases, Developer Tools
Funding undisclosed
Mito

Cursor for data analysis

New York, United States1–10Analytics, Artificial Intelligence
Seed·Jul 2022
Twenty

Open Source CRM

San Francisco, United States1–10CRM, Open Source
Seed·Nov 2024
SSOReady

Open source developer tools for enterprise single sign-on

San Francisco, United States1–10Cybersecurity, Developer Tools
Funding undisclosed
Nango

A single API for all your integrations

San Francisco, United States1–10Developer Tools, Open Source
Seed·Mar 2026
Jitsu

Capture Event Data into Your Stack

San Francisco, United States1–10Data & Analytics, Open Source
Seed·Dec 2020
PeerDBAcquired

Fast, native ETL for Postgres 🐘 🚀

1–10Data & Analytics, Databases
Funding undisclosed
Ollama

Get up and running with large language models.

Palo Alto, United StatesArtificial Intelligence, Developer Tools
Funding undisclosed
SubImage

Software that maps your infrastructure. Open core alternative to Wiz

1–10Artificial Intelligence, Cybersecurity
Funding undisclosed
PySpur.dev

Open Source AI Agents Builder

San Francisco, United States1–10Artificial Intelligence, Generative AI
Funding undisclosed
RethinkDBAcquired

The open source database for the realtime web.

11–50Open Source
Funding undisclosed
LunaticClosed

Operating System for server-side apps

Vienna, Austria1–10Developer Tools, Open Source
Funding undisclosed
PipelineDBAcquired

Open-source time-series data analytics extension for PostgreSQL

Los Angeles, United States1–10Data & Analytics, Open Source
Seed·Jun 2014
TipeClosed

Open-source, customizable, headless CMS

San Francisco, United States1–10Open Source
Funding undisclosed
LunaSecClosed

An Open Source dependency security tool that is smarter than the rest

Seattle, United States1–10Automation and Response (SOAR), Cybersecurity
Funding undisclosed
Million

Make websites fast, automatically

San Francisco, United States1–10AI Assistant, Artificial Intelligence
Seed·Jan 2024
HyperDXAcquired

Open-source, dev-friendly observability.

San Mateo, United States1–10Developer Tools, Infrastructure
Seed·Jun 2022
LotusIPO

Open-Core Pricing and Billing Engine

New York, United States1–10Fintech, Open Source
Funding undisclosed
nCompass Technologies

Deploy hardware accelerated AI models with only one line of code

1–10Artificial Intelligence, Cloud
Seed·Jan 2024
GraiClosed

Open source version control for metadata

San Francisco, United States1–10Analytics, Data & Analytics
Funding undisclosed