Tekton, Zu and Decware are three I have come across recently that I would like to experience.
Also a fan of the Audiokinesis approach to things, though have not actually heard.
THough also have not heard, gotta give a plug for HHR Exotic Speakers as well for forging ahead with the Walsh speaker design and keeping costs manageable.
Did I forget OHM? Here's to John Strohbeen as well!
Audio Research....still the cornerstone of tube amp products?
mhdt systems: very good DACs for not much cost.
Bel Canto: I like this company's products and service a lot though there is tons of competition.
Dynaudio are they too big? A gold standard in modern speaker design I would say.
How about Triangle? Not up with their more recent products too much but like what I have heard.
Manley and Rogue....I like these two companies products that I have heard though I liked Manley's old price structure a lot better than the new.
Magnepan, not too big to mention, right?
Haven't heard Atmasphere but I suspect Ralph's tube amp products are quite exceptional.
I suspect Classic Audio Loudspeakers may have some of the better sounding speakers out there especially with use of their field coil drivers.
I heard charming and reasonably priced large horns from The Cathedral Speaker company a while back that caught the ears of many at a show in addition to myself.
I tend to levitate towards products that are unique or innovative relative to the norm. There are many small companies making good stuff out there.