Let's compile list of brands that produce Amps AND Loudspeakers.

I think is interesting to know which brands are actually producing amplification gears and their own loudspeakers, and also Loudspeakers company that make amps, let's compile a list here :)

I will start putting a few...

T+A
Bryston
Mcintosh
Rega
PMC (they make a integrated)
Anthem / Paradigm
PS Audio (will introduce their own loudspeaker soon)
Unison Research
Yamaha

Fell free to contribute to the list, thanks, best regards!