Riseup.net - http://riseup.net
Free Software Foundation (FSF)- http://www.fsf.org
Autistici/Inventati - http://www.autistici.org
Free Geek -- http://www.freegeek.org
VITA non profit group ?Italy -- http://web.vita.it
LINC Project -- http://www.lincproject.org
Groundspring.org -- http://www.groundspring.org/
Tools for Change -- http://www.toolsforchange.org/
Zopeworks -- http://zopeworks.us
Computers To Help People, Inc. -- http://www.chpi.org
Aquadev A.S.B.L. - http://www.aquadev.org
Social Source Software - http://www.social-source.org/
NOSI - http://www.nosi.net/
Privaterra - http://www.privaterra.org/
soniq - http://soniq.net/
quintessenz - http://www.quintessenz.at/
praKsys - http://praksys.org/
Resist.ca - http://resist.ca/