Not sure how long their histories are, Columbus and Vitus both go back to pre-war. In the meantime, others such as True Temper and Dedacciai also offer steel tubes for bicycles. I've had frames made with Reynolds (531, 753, and in the family we've had 501 and 653 too), Ishiwata, Tange and Sanko, and the truth of the matter is that the frame builder has much more influence over the end result than the tube maker does.
Not sure how long their histories are, Columbus and Vitus both go back to pre-war. In the meantime, others such as True Temper and Dedacciai also offer steel tubes for bicycles. I've had frames made with Reynolds (531, 753, and in the family we've had 501 and 653 too), Ishiwata, Tange and Sanko, and the truth of the matter is that the frame builder has much more influence over the end result than the tube maker does.