All Industries

Top Open Source Companies

179 Open Source companies, sorted by total funding raised.

LangfuseAcquired

Open source LLM engineering platform

Berlin, Germany1–10Analytics, Artificial Intelligence
Seed·$4.0M·Nov 2023
Webiny

Open-source framework for building serverless applications

London, United Kingdom1–10Developer Tools, Open Source
Seed·$4.0M·Aug 2021
refine

Open-source Retool for enterprise

San Francisco, United States1–10Developer Tools, Open Source
Seed·$3.8M·Jun 2024
Beam

AI Infrastructure for Developers

New York, United States1–10Artificial Intelligence, Developer Tools
Seed·$3.5M·May 2022
Chaos GeniusAcquired

DataOps Observability Platform for Snowflake

San Francisco, United States1–10Analytics, Cybersecurity
Seed·$3.3M·Jan 2023
Vocode

Open source Voice AI

San Francisco, United States1–10Developer Tools, Generative AI
Seed·$3.3M·Feb 2024
KeepAcquired

The open-source AIOps platform

Tel Aviv-Yafo, Israel1–10Open Source, SaaS
Pre-seed·$3.2M·Oct 2024
TensilClosed

We turn machine learning models into custom hardware.

San Francisco, United States1–10Artificial Intelligence, Hardware
Seed·$3.0M·Apr 2020
Confident AI

The DeepEval LLM Evaluation Platform

San Francisco, United States1–10Artificial Intelligence, Developer Tools
Seed·$2.7M·Apr 2025
Skyvern

Open Source AI Agent to automate browser workflows via an API

San Francisco, United States1–10Artificial Intelligence, Automation
Seed·$2.7M·Dec 2024
CustomerOSClosed

The only agent-first CRM, designed for humans and built for B2B SaaS.

London, United Kingdom1–10Open Source
Pre-seed·$2.6M·Jun 2023
Ukama

Empowering anyone to build cellular network

Pleasanton, United States1–10Deep Tech, Hardware
Seed·$2.2M·Aug 2020
FigClosed

Fig adds visual apps, shortcuts, and autocomplete to your terminal.

San Francisco, United States1–10Cybersecurity, Developer Tools
Seed·$2.2M·Aug 2021
Defog.ai

Fine-tuned LLMs for enterprise data analysis

Singapore, Singapore1–10Developer Tools, Generative AI
Seed·$2.2M·Nov 2023
Activepieces

Open-source, AI-first and no-code business automation tool

San Francisco, United States1–10Artificial Intelligence, Open Source
Seed·$2.1M·Apr 2023
Artillery

Modern testing platform for DevOps & SRE

Limerick, Ireland1–10DevOps, Developer Tools
Seed·$2.0M·Jan 2022
Chatwoot

Open-source customer engagement suite, alternative to Intercom

San Francisco, United States1–10Open Source
Seed·$1.6M·Aug 2021
KeyDBAcquired

The only database you'll ever need

Toronto, Canada1–10Databases, Open Source
Seed·$1.4M·Apr 2021
Evidently AI

Open-source monitoring for machine learning models

San Francisco, United States1–10Developer Tools, Artificial Intelligence
Seed·$1.1M·Jul 2022
SST

Build modern full-stack applications on your own infrastructure

Toronto, Canada1–10Developer Tools, Open Source
Seed·$1.0M·Jul 2021
Matano

Cloud Native SIEM (alternative to Splunk/Elastic)

Seattle, United States1–10Analytics, Cybersecurity
Pre-seed·$625K
Firezone

Easiest, most secure way to set up Zero Trust Access for your team

Mountain View, United States1–10Cybersecurity, Open Source
Seed·$625K·Jan 2022
Gauge

Solving the monolith/microservices dilemma.

San Francisco, United States1–10Developer Tools, Open Source
Seed·$500K·Jul 2024
Tracecat

Open source Tines / Splunk SOAR alternative for security engineers.

San Francisco, United States1–10Artificial Intelligence, Cybersecurity
Seed·$500K·Apr 2024
RecipeUI

The open source Postman alternative.

New York, United States1–10Developer Tools, Open Source
Seed·$500K·Aug 2023