Neumann (digital microphones) (www.neumann.com)
Nubert (monitoring boxes 13.1) (www.nubert.de)
Heinzmann Metallbau (3D-framework) (www.heinzmann-werkzeugbau.de)
mbakustik (acoustic measurement) (www.mbakustik.de)
Steinberg (DAW-software) (www.steinberg.net)
TC Electronic (System 6000) (www.tcelectronic.com)
RME (audio interfaces) (www.rme-audio.de)
Sommer Cable (cables) (www.sommercable.com)
MBHO (microphones) (www.mbho.de)
New Audio Technology (software SAD, 3D-consulting) (www.newaudiotechnology.com)
Denon & Marantz (3D-receiver) (www.denon.de)
Balint Guitars (construction of a 3D-guitar!)  (www.felixbalint.com)
Masshoff Drums (www.masshoffdrums.de)
Wahan Drums (www.wahan.de)