Acidlab
Analog-Lab
Analogue Solutions
Analogue Systems
Anyware Instruments
Bananalogue
Bigbriar (Moog Music)
Blacet
Buchla 200e
Club of the Knobs
C.M.S.
Curetronic
Cwejman
Cynthia
Dave Smith Instruments
DOEPFER
Electro Acoustic Research
EMS rehberg
Encore Electronics
Frostwave
Future Retro
Jomox
Kenton
Macbeth Studio Systems
marcmarc
Metalbox
Metasonix valve modules
MFB (Fricke)
Midijack
Minod
Modcan
modular planner
Modusonics
Moogulator - a referencial site
MOTM
Motus Mavis custom synths
Neuronium
Oakley Sound Systems
Paia kits
Polydac
russian synths
Sherman
SND
Spectral Audio
Studio Electronics
syncronizers for old machines
Synthesizers.com
Technosaurus
Troubled Variance
Vermona
Vintage Synth Explorer
Voxglitch modules
Wiard