Software:

eventide
native instruments
arturia
applied accoustics systems
cakewalk
izotope
musiclab
nuklear
ohmforce
psp
RobPapen
polivox
waves
wusik

Hardware:

sequential circuits
universal audio
roland
moog
crumar
siel
nord
waldorf
korg
vermona
akai
behringer
electrix
e-mu
mam
novation
oberheim
Soundcraft