DAWs, Converters:
Dangerous Music (mixer, summing buss)
Apogee Electronics

Monitoring:
ATC
KRK Systems

Miscellaneous:
ReAmp (alternative signal processing)
Little Labs (instrument distro)
Extreme Headphones (extreme isolation headphones)
Real Traps (acoustic treatment)
Rupert Neve Designs
Roll Music Systems
Glyph Technologies
Telenordia (German Tape Op distributor & FX boxes manufacturer)
Sonoris Audio Engineering (online mastering and mastering software)
Primacoustic
ToneBone
Radial Engineering
Trans Audio Group
Steinberg

Microphones:
Royer Labs
Pacific Pro Audio
Audio Technica
Shure
Soundfield
Josephson
sE Electronics
Karma
Telefunken
Bock Audio

Mic Pres, Compressors, Processing:
DW Fearn
Pendulum Audio
Great River Electronics
Universal Audio
Chandler Limited
Millennia Media
PreSonus
Daking
Brent Averill
Drawmer
Hamptone
Grace Design
Sta-Level
LaChapell Audio
True Systems
Ingram Engineering