Catgirl Synth –
Ken Stone is widely respected for both his designs
and his quality of service. Site has a lot of useful SDIY info.
(Note that some separate companies, namely Elby Designs and Metalbox,
provide kits and fully built modules, respectively).
Music from Outer Space
– Ray Wilson offers boards for his famous Sound Lab Mini-Synth, as well
as tasty VCA, ADSR, and VCO designs
Kits or Fully Assembled
Synthesis
Technology – home of the Moog-look-inspired
MOTM line (known to have the highest build quality of all the kits – but
also the most expensive)
Blacet Research – John Blacet’s
fascinating designs in fracrack format
PAiA – economical designs, including
the MIDI-controlled Fatman and the 9700 series modular (fracrack format),
which packs lot of functions in each module
Fully Assembled Only
Verbos Electronics –
Mark Verbos, keeper of the Buchla
Tech blog, made a name for
himself repairing Buchla modules. Now he’s making modules of his own design.
Buchla and Associates – home of
the Buchla 200e, an amazing modular synth with patch memory that
can cost as much as a new car – let the gear lust begin!
C.M.S. –
Phil Cirocco’s
line
appears to be made with discrete transistors –
i.e. you can buy an op amp made with discrete transistors from them, which
they use in some of their modules. The price, as you might expect, is
out of this world. The front panel graphics are gorgeous.
Company also does a lot of servicing of old ARPs.
Cyndustries –
Cynthia Webster’s
mpdules, along with cables, cases, back issues of Synapse online, and
other goodies
Doepfer – German company (eurorack
format) – probably the largest variety of modules