Speed, to me, isn't a real innovation. Shifting paradigms from what is considered traditional, however, is.

As Arthur mentioned, its going to be difficult for companies to come out with new technology that hasn't been, at some point in history, already been tried. Roller guards, string stops, binary-esque cams, etc... Its all been done at one point or another, so rarely will you find anything truly new and innovative.

My vote goes to Bowtech, a company constantly striving to change the way archers look at archery.