By a very large margin, for me it is Emerson at well over 75, probably near 100 by now (three of which handmade customs).
I'm not sure if anyone else has cracked 20 - CRK may be close, as would Spyderco. Around 10 each for Hinderer (XM's only) and Medford. 7 or 8 Microtechs. Half dozen CKF's.