I like MAAAA.
And from the "Extreme Music from Russia" comp, I enjoy everything on it, but what stands out there is Volga, I followed up on their work, haven't been disappointed.
I.M.M.U.R.E. is Russia's answer to COIL and Current 93 at times, but with his own style. I really enjoy his work, he has his own take on the "psychedelic electronics" of the late 90s.
Kshatriy does some really excellent dark ambient/drone.