9/13 - looks like I get to wear the forum dunce cap...
I managed to click Pearl for the Yamaha badge and knew I'd screwed up as soon as I'd done it - how did I get that one wrong?
I know that Kent.,Leedy, Fibes, US Mercury and a few others were drum manufacturers but I had to guess and click at random - so the ones that I actually know are probably closer to 7 (I knew the Yamaha badge - honest guv).