BeagleBoard.org
BigBlueButton
CGAL - Computational Geometry Algorithms Library
Chromium OS
DocBook Project
Dojo Foundation 
Dreamwidth Studios
Drizzle
DuraSpace
EPFL (Scala team)
European Smalltalk User Group (ESUG)
"European Space Agency, The Advanced Concepts Team"
Expert Labs
Facebook
FreedroidRPG
Google Caja
Google Caja Shahar
Grameen Foundation
Inclusive Design Institute
International GeoGebra Institute
Jikes RVM
Kernel.org - the Linux Kernel Organization
LXDE Foundation
Mapnik
Marine Biological Laboratory Biodiversity Informatics Group-Encyclopedia of Life Project
Mixxx
Open Bioinformatics Foundation
"OPeNDAP, Inc."
OpenInkpot
OpenNebula
Open Source Computer Vision Library
Opticks
phpMyAdmin
PLSE at UW
PostgreSQL
Puppet (Reductive Labs)
QEMU development team
Selenium
StatusNet
Tahoe-LAFS
The Java Pathfinder Team
Ubuntu
Ushahidi
xen.org
XMPP Standards Foundation
YafaRay (Yet Another Free Raytracer)