early on - chris squire , andy fraser , mick karn (japan), rik laird (mahavishnu) , , boz burrel , john entwhistle etc
more recently - mark king , pino , stanley clarke , bernard edwards , john taylor
now - steve bailey , michael manring , wooten , claypool , flea , bona , jaco ( I know, discovered him too late) and many others 2m2m.