The Monty’s 50 Largest North American Commercial Heat Treats 2021 – #32 Thermetco, Montreal, Quebec, Canada

Since 1999 “The Monty” has been publishing annually a list of the largest commercial heat treaters in North America based upon annual sales, our 2021 list can be found at This year readers will see we became much more ambitious and expanded the list to the 50 largest. In our 32nd spot we have Thermetco, Montreal, Quebec, Canada.

Thermetco is a second generation heat treater founded by Mr. Andre Houle. The firm has over 100 employees and offers Carburizing, Vacuum Hardening, Austempering, Plasma Nitridng and Carbonitriding. In the past several years the company has moved to a new location, acquired two competitors and added a number of new furnaces. It is ranked as the second largest in Canada.

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