Similar to 参加型文化財団

KDE e.V.

Linux Foundation

Linux Professional Institute

Metasploit

OpenForum Europe

Open Security Foundation

Open Source Applications Foundation

Open Source Development Labs

OpenBCI

OpenBSD

OpenDocument Format Alliance

OpenJS Foundation

Organization for Ethical Source

Open Source Geospatial Foundation

Project Jupyter

Python Software Foundation

Software Freedom Conservancy

Software Freedom Law Center

Software in the Public Interest

Symbian Foundation

The Document Foundation

X.Org Foundation

Xiph.Org Foundation

XMPP Standards Foundation

The Apache Software Foundation

Wikimedia Foundation

Eclipse Foundation

OpenStreetMap Foundation