In addition to the ones already mentioned (Merckx, Flandria, Superia, Libertas) I also show these in the Used Bike Buyers Guide: Browning, Main D'Or, Plum, Unic Sport, Vagacini. I believe at least two of these were built outside of Belgium for shops there. There was a discussion on the list previously about Browning. Felix Engelbosch was from Ghent, but to the best of my information, he built in New York. Perhaps Brandon can find more info on his trip. Lou Deeter, Orlando FL