The Waterous Engine Works was a famous Canadian farm and road engine builder. It made farm, road rollers and steam pumper fire equipment. It also made factory steam engines and marine engines. Many of their engines survive to this day in museums.
Founder C.H. Waterous was a machinist who apprenticed and ran a few firms. He eventually set up C. H. Waterous and Co in 1864 and it built a factory in Brantford, Ontario.
Using designs from Ohioan engine maker D. June, Waterous built the Champion line of steam portable engines. These were quite successful and thousands were constructed.
Later, the twin sons of the founder moved west to Winnipeg and set up a factory. They later moved to St. Paul, Minnesota, and established a branch of the Waterous name there in 1884. It made fire hydrants and fire equipment. This branch of the company is still in business.