There are some manufacturers that don't seem to get the love they deserve.
I was curious to see what other people thought about their favorite "underdog" producer - someone who has been around for a decade or more and makes great stuff that just seems to remain excluded from the discussions of great manufacturers over time.
I'll even go first: Adcom makes much better stuff than they currently get credit for.
I have some 585 amps that just kill, and they are 20 years old (I updated the caps). I compared them to Trans Novas on Acoustat 2+2's (oops, 30 some years old) and it was a wipeout in favor of the Adcoms. Speed, punch, openness, etc...
I won't spoil it by listing a bunch, mostly it will be interesting to see what other people think, and might even help "entry level" readers expand their considerations.