I started this list purely for my own interest and did not expect it to contain more than 20 names, or so. It has grown to 63 and contains more company names than any other list I have seen on Brons and Hvid engines.

Some of the information has come from the books, Patent Brons  by Jan Vegter, and Diesels Engine by Lyle Cummins. The rest has come from my own research, and through contact (email and otherwise) with people from all over the world who have shared their information.

I have included the American company, Frick and Co., but have no details on