Magic Music Visuals - Fully-customizable and highly responsive visuals for live and recorded audio & MIDI.
Rentman - Cloud rental management software for the AV & Event industry
projectM - projectM is an LGPL'ed reimplementation of Milkdrop under OpenGL.
MilkDrop - 3D audio visualization plugin, compatible with WinAmp plugin API
Current RMS - RMS for AV, production, broadcast & event rental companies
Plane9 - Plane9 is a revolutionary 3d visualizer where you never have to settle for just one view ever again.