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Find your people. Then your
first good issue.

364 open-source organizations, each one named by a program's own record. Filter by field or technology; stars, repositories and issues are read live from GitHub.

The statistics across every program's record

Showing 48 of 364 organizations

github
GitHubEducation & Community

How people build software.

★ 489.6k567 repos3k open issues
runsGSoC
gojavascriptpython
apache
The Apache Software FoundationDatabases & Data

Open-source organization on GitHub - 3188 public repos.

★ 410.1k3.2k repos4.6k open issues
runsGSoC
pythonscalatypescript
tensorflow
tensorflowAI & Machine Learning

Open-source organization on GitHub - 107 public repos.

★ 374.1k107 repos3k open issues
c++pythontypescript
kubernetes
KubernetesCloud & Infrastructure

Production-Grade Container Scheduling and Management

★ 252.6k81 repos3.1k open issues
gojupytershell
electron
ElectronWeb & Frontend

Build cross platform desktop apps with JavaScript, HTML, and CSS

★ 170.3k114 repos1k open issues
runsGSoC
c++htmljavascript
elastic
elasticDatabases & Data

Open-source organization on GitHub - 967 public repos.

★ 158.6k967 repos24.8k open issues
runsGSoC
gojavatypescript
mozilla
MozillaWeb & Frontend

This technology could fall into the right hands.

★ 155.2k2.6k repos2k open issues
c++freemarkerjavascript
godotengine
Godot EngineMedia, Arts & Design

Godot is a popular Free and Open Source game development engine and toolset.

★ 145k70 repos21.6k open issues
runsGSoC
c++gdscriptrestructuredtext
Homebrew
HomebrewDeveloper Tools

The Package Manager for Everywhere

★ 130.2k29 repos16 open issues
runsGSoC
rubyshellswift
neovim
NeovimDeveloper Tools

hyperextensible Vim-based text editor

★ 121.9k30 repos1.8k open issues
runsGSoC
luapythonvim script
prometheus
PrometheusWeb & Frontend

Open-source organization on GitHub - 59 public repos.

★ 118.4k59 repos1.3k open issues
gojavascriptpython
python
PythonProgramming Languages

Repositories related to the Python Programming language

★ 116.9k98 repos10.4k open issues
runsGSoC
pythonrestructuredtext
grpc
grpcCloud & Infrastructure

A high performance, open source, general-purpose RPC framework

★ 116.3k33 repos3.3k open issues
runsGSoC
c++gorust
webpack
webpackWeb & Frontend

Open-source organization on GitHub - 89 public repos.

★ 111.5k89 repos134 open issues
runsGSoC
javascript
opencv
OpenCVMedia, Arts & Design

Open-source organization on GitHub - 18 public repos.

★ 110.6k18 repos3.3k open issues
c++objective-cpython
django
DjangoWeb & Frontend

Open-source organization on GitHub - 31 public repos.

★ 107.4k31 repos360 open issues
runsGSoC
python
google-deepmind
Google DeepMindAI & Machine Learning

Open-source organization on GitHub - 410 public repos.

★ 99.5k410 repos1k open issues
runsGSoC
c++jupyterpython
OWASP
OWASPSecurity & Privacy

The OWASP Foundation

★ 85.2k1.4k repos522 open issues
runsGSoC
cssjavascriptpython
FFmpeg
FFmpegDeveloper Tools

Open-source organization on GitHub - 9 public repos.

★ 78.9k9 repos15 open issues
runsGSoC
lessshell
babel
BabelWeb & Frontend

The community maintained compiler for next generation JavaScript, today.

★ 70.4k63 repos1.2k open issues
runsGSoC
javascripttypescript
jina-ai
Jina AIAI & Machine Learning

Your Search Foundation, Supercharged! (acquired by @elastic 2025/10)

★ 65.3k267 repos470 open issues
runsGSoC
pythontypescript
NixOS
Nix/Nixpkgs/NixOSDeveloper Tools

Open-source organization on GitHub - 97 public repos.

★ 63k97 repos13.3k open issues
c++nix
servo
ServoWeb & Frontend

Servo aims to empower developers with a lightweight, high-performance alternative for embedding web technologies in applications.

★ 55.6k193 repos3.7k open issues
rust
discourse
DiscourseNetworking & Communications

The 100% open source discussion platform built for the next decade of the Internet.

★ 55.1k635 repos406 open issues
runsGSoC
phprubyshell
RocketChat
Rocket.ChatNetworking & Communications

The Secure CommsOS™ for mission-critical operations.

★ 54.2k335 repos3.5k open issues
runsGSoC
kotlinswifttypescript
cilium
CiliumCloud & Infrastructure

eBPF-based Networking, Security, and Observability

★ 48.6k139 repos1.6k open issues
runsGSoC
gomakefile
llvm
LLVMDeveloper Tools

This is the LLVM organization on GitHub for the LLVM Project: a collection of modular and reusable compiler and toolchain technologies.

★ 47.2k44 repos31.6k open issues
c++llvmrpc
jitsi
JitsiNetworking & Communications

Open-source organization on GitHub - 185 public repos.

★ 47.1k185 repos659 open issues
runsGSoC
javaluatypescript
qdrant
QdrantMedia, Arts & Design

Creating advanced vector search technology

★ 44.3k133 repos732 open issues
runsGSoC
pythonrusttypescript
salesforce
SalesforceCloud & Infrastructure

Noteworthy Open Source projects made available by Salesforce. Available under Open Source or Creative Commons licensing. No warranty or support implied

★ 43.3k424 repos988 open issues
runsGSoC
jupyterpythontypescript
ruby
The Ruby Programming LanguageProgramming Languages

Repositories related to the Ruby Programming language.

★ 39.5k191 repos576 open issues
runsGSoC
javascriptruby
FreeCAD
FreeCADApps & End-User Software

The FreeCAD project

★ 39.2k73 repos3.6k open issues
runsGSoC
c++htmlpython
envoyproxy
Envoy Proxy - CNCFNetworking & Communications

Envoy Proxy - CNCF

★ 39.1k37 repos2.8k open issues
c++gostarlark
KDE
KDE GitHub MirrorApps & End-User Software

Official read-only mirror of the KDE project. Please don't send pull requests; to contribute code see https://community.kde.org/Infrastructure/Github_Mirror

★ 37.4k1.3k repos0 open issues
runsGSoC
c++kotlinqml
netty
The Netty ProjectNetworking & Communications

Opening the future of network programming since 2001

★ 36.2k16 repos819 open issues
runsGSoC
javaxml
processing
Processing FoundationMedia, Arts & Design

We create platforms to promote software literacy within the visual arts, and visual literacy within technology-related fields.

★ 35.8k85 repos1.4k open issues
runsGSoC
htmljavajavascript
chromium
The Chromium ProjectWeb & Frontend

Open-source organization on GitHub - 39 public repos.

★ 34.7k39 repos291 open issues
runsGSoC
gohtmljavascript
carbon-language
carbon-languageProgramming Languages

Open-source organization on GitHub - 7 public repos.

★ 34k7 repos210 open issues
runsGSoC
c++htmlvim script
kubeflow
KubeflowCloud & Infrastructure

Kubeflow is an open, community driven project to make it easy to deploy and manage an ML stack on Kubernetes

★ 31.9k50 repos705 open issues
gojsonnetpython
fossasia
FOSSASIAApps & End-User Software

Open Technologies developed in Asia and Around the Globe

★ 31.5k208 repos408 open issues
runsGSoC
javakotlinpython
clojure
ClojureProgramming Languages

Open-source organization on GitHub - 114 public repos.

★ 30.8k114 repos14 open issues
runsGSoC
c#clojurejava
videolan
VideoLANApps & End-User Software

VideoLAN: open source multimedia for everyone

★ 30.5k18 repos7 open issues
runsGSoC
c#kotlin
jupyterlab
JupyterLabWeb & Frontend

JupyterLab: The Next Generation UI for Project Jupyter

★ 29.5k68 repos3.2k open issues
runsGSoC
htmlpythontypescript
cncf
Cloud Native Computing Foundation (CNCF)Cloud & Infrastructure

Sustaining and integrating open source technologies to orchestrate containers as part of a microservices architecture

★ 29.1k175 repos449 open issues
runsLFX
gohtmljavascript
mono
Mono ProjectDeveloper Tools

Open-source organization on GitHub - 243 public repos.

★ 28.4k243 repos4.8k open issues
runsGSoC
c#
matrix-org
The Matrix.org FoundationWeb & Frontend

A new basis for open, interoperable, decentralised real-time communication

★ 28.2k332 repos3k open issues
gopythonrust

The rest of the program roster

616 organizations ran a mentored project across 13.5k accepted projects in the four archives that publish one. 250 of them have no profile above - either no GitHub account could be confirmed, or the account runs no program we track. Each card shows exactly what the program recorded, and links to that program's full organization list.

R project for statistical computingScience & Medicine
234accepted projects
Official pageno account
Machine Learning for Science (ML4SCI)AI & Machine Learning
152accepted projects
Official pageno account
LLVM Compiler InfrastructureDeveloper Tools
133accepted projects
Official pageno account
National Resource for Network Biology (NRNB)Science & Medicine
126accepted projects
Official pageno account
OSGeo (Open Source Geospatial Foundation)Space & Geospatial
107accepted projects
Official pageno account
Open Technologies Alliance - GFOSSScience & Medicine
76accepted projects
Official pageno account
Free and Open Source Silicon FoundationRobotics & Hardware
64accepted projects
Official pageno account
Global Alliance for Genomics and HealthScience & Medicine
49accepted projects
Official pageno account
Open Bioinformatics Foundation (OBF)Science & Medicine
45accepted projects
Official pageno account
The Terasology FoundationApps & End-User Software
43accepted projects
Official pageno account
cBioPortal for Cancer GenomicsScience & Medicine
42accepted projects
Official pageno account
Boost C++ LibrariesProgramming Languages
41accepted projects
Official pageno account
The Rust FoundationProgramming Languages
40accepted projects
Official pageno account
GNU Compiler Collection (GCC)Developer Tools
39accepted projects
Official pageno account

Looking for a season, not just a repo?

13 mentored programs - stipends, calendars, eligibility and every organization they accepted - live on their own page.