Similar to GNU_Mach

Apache Velocity

Apache Wicket

Apertium

Aptana

Arora (web browser)

AviSynth

AxKit

Free Software Foundation anti-Windows campaigns

Ballerina (programming language)

Banner (Unix)

Berry Linux

Bitstream Vera

Blackbox

Brackets (text editor)

BSD licenses

Buildbot

Cacti (software)

Calligra Sheets

Ccache

Cdparanoia

Cdrkit

Coccinella (software)

Conkeror

Cooperative Linux

Coreboot