The Open Source Organizational Ecosystem

A comprehensive map of the organizations that steward, fund, protect, and advocate for open source software.

Org Types
(c)(3) US charitable nonprofit
(c)(6) US trade association
nonprofit Non-US nonprofit
gov Government-backed
corp Corporate / commercial
sub-org Sub-foundation / SIG
IGO Intergovernmental
Umbrella Foundations & Fiscal Sponsors
Multi-project foundations
Linux Foundation (c)(6) 🇺🇸 OpenAtom Foundation nonprofit 🇨🇳 OpenJS Foundation (c)(6) 🇺🇸 Software in the Public Interest (c)(3) 🇺🇸 Open Source Collective (c)(6) 🇺🇸
Fiscal hosts
Apache Software Foundation (c)(3) 🇺🇸 Eclipse Foundation nonprofit 🇧🇪 NumFOCUS (c)(3) 🇺🇸 Software Freedom Conservancy (c)(3) 🇺🇸 OASIS Open nonprofit 🇺🇸 OW2 nonprofit 🇫🇷
Security
Standards & coordination
OpenSSF sub-org 🇺🇸 OWASP Foundation (c)(3) 🇺🇸
Auditing & protection
OSTIF (c)(3) 🇺🇸 OSSAfrica sub-org 🌍
Infrastructure
Let's Encrypt / ISRG (c)(3) 🇺🇸
Government & Public Sector
Direct funding
Sovereign Tech Fund gov 🇩🇪 NLnet Foundation nonprofit 🇳🇱 EU NGI Initiative gov 🇪🇺 ICFOSS gov 🇮🇳
Recognition & frameworks
UN Digital Public Goods Alliance IGO 🌐
Single-Project & Language Foundations
Languages & runtimes
Python Software Foundation (c)(3) 🇺🇸 Rust Foundation (c)(6) 🇺🇸 Ruby Central (c)(3) 🇺🇸 Rails Foundation (c)(6) 🇺🇸 Perl & Raku Foundation nonprofit 🇺🇸 .NET Foundation (c)(6) 🇺🇸 Haskell Foundation nonprofit 🇺🇸 Kotlin Foundation (c)(6) 🇳🇱 PHP Foundation sub-org 🇺🇸 R Consortium sub-org 🇺🇸 Erlang Ecosystem Foundation (c)(3) 🇺🇸
Applications & platforms
Mozilla Foundation (c)(3) 🇺🇸 Blender Foundation nonprofit 🇳🇱 Document Foundation nonprofit 🇩🇪 Signal Foundation (c)(3) 🇺🇸 Wikimedia Foundation (c)(3) 🇺🇸 VideoLAN nonprofit 🇫🇷 Godot Foundation nonprofit 🇳🇱 Drupal Association nonprofit 🇺🇸 Django SF (c)(3) 🇺🇸 MariaDB Foundation nonprofit 🇫🇮 WordPress Foundation (c)(3) 🇺🇸 Tor Project (c)(3) 🇺🇸 Krita Foundation nonprofit 🇳🇱 Matrix.org Foundation nonprofit 🇬🇧
Operating systems & infrastructure
FreeBSD Foundation (c)(3) 🇺🇸 OpenBSD Foundation nonprofit 🇨🇦 AlmaLinux OS Foundation (c)(6) 🇺🇸 GNOME Foundation (c)(3) 🇺🇸 KDE e.V. nonprofit 🇩🇪 Gentoo Foundation nonprofit 🇺🇸 Debian nonprofit 🌐 NetBSD Foundation nonprofit 🇺🇸 LLVM Foundation (c)(3) 🇺🇸 Internet Systems Consortium (c)(3) 🇺🇸 Bytecode Alliance nonprofit 🇺🇸 openEuler sub-org 🇨🇳
Data, mapping & protocols
OpenStreetMap Foundation nonprofit 🇬🇧 Xiph.Org Foundation (c)(3) 🇺🇸 XMPP Standards Foundation nonprofit 🇺🇸 Dronecode Foundation sub-org 🇺🇸 Alliance for Open Media nonprofit 🇺🇸
Advocacy & Policy
Software freedom
Free Software Foundation (c)(3) 🇺🇸 FSFE nonprofit 🇩🇪 FSFLA nonprofit 🇦🇷 Free SW Movement India nonprofit 🇮🇳 Hamakor nonprofit 🇮🇱
Policy & standards
Open Source Initiative (c)(3) 🇺🇸 EFF (c)(3) 🇺🇸 OpenForum Europe nonprofit 🇪🇺 OS Business Alliance nonprofit 🇩🇪 Fundación Vía Libre nonprofit 🇦🇷 Creative Commons (c)(3) 🇺🇸 OpenUK nonprofit 🇬🇧
Legal services
Open Invention Network corp 🇺🇸
Funding Mechanisms & Platforms
Direct-to-maintainer platforms
GitHub Sponsors corp 🇺🇸 Tidelift corp 🇺🇸 Thanks.dev corp 🇪🇺 Ecosyste.ms Funds corp 🇬🇧
Pledge & collective models
Open Source Pledge corp 🇺🇸
Philanthropies
Chan Zuckerberg Initiative corp 🇺🇸 Alfred P. Sloan Foundation (c)(3) 🇺🇸 Ford Foundation (c)(3) 🇺🇸 Kavli Foundation (c)(3) 🇺🇸 Open Society Foundations (c)(3) 🇺🇸 Omidyar Network corp 🇺🇸 Shuttleworth Foundation nonprofit 🇿🇦
Community Networks
Regional community building
FOSS United nonprofit 🇮🇳 FOSSASIA nonprofit 🇸🇬 Open Source Community Africa nonprofit 🌍 She Code Africa nonprofit 🌍 Living Open Source Foundation nonprofit 🇿🇲 Open Source Latin America nonprofit 🌎 Kaiyuanshe nonprofit 🇨🇳
Domain-Specific
Science & data
OSGeo nonprofit 🇺🇸 Open Bioinformatics Foundation nonprofit 🇺🇸 Center for Open Science (c)(3) 🇺🇸 Open Knowledge Foundation nonprofit 🇬🇧 pyOpenSci sub-org 🇺🇸
Industry & civic tech
FINOS sub-org 🇺🇸 Code for America (c)(3) 🇺🇸 Ushahidi nonprofit 🇰🇪 Humanitarian OpenStreetMap Team (c)(3) 🇺🇸
Hardware & silicon
RISC-V International nonprofit 🇨🇭 Open Source Hardware Association (c)(3) 🇺🇸
Education
Apereo Foundation (c)(3) 🇺🇸
AI & ML
PyTorch Foundation sub-org 🇺🇸 LF AI & Data sub-org 🇺🇸 EleutherAI Institute nonprofit 🇺🇸
Cloud & infrastructure
CNCF sub-org 🇺🇸 OpenInfra Foundation sub-org 🇺🇸
Energy
LF Energy sub-org 🇺🇸
Film & media
Academy Software Foundation sub-org 🇺🇸
This is a representative list and may not include all organizations.
endowment.dev
v2 · March 2026