Alex Meade (USA) for FB-specific tools and fixtures. Also sells a cool DT lug for 1.5" tapered steerer headtube. Does custom work, and sells individual pieces like cones to help you make your own jig, BB post to make your own alignment table.

Metal-Guru (USA)

Firsthand (USA), Reynolds tubing distributor for the US.

ImpGen ("Improved Generics") make multi-flame torch tips suitable for propane+O2, maybe a good replacement for Paige tips if they aren't available anymore (dunno, haven't tried 'em). They make tips and adapters (goosenecks) for Meco Midget. Maybe not interesting to those without a Meco torch.