Since 1999 “The Monty Heat Treat News” 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 https://themonty.com/project/50-largest-north-american-commercial-heat-treats-2021-2/ This year readers will see we became much more ambitious and expanded the list to the 50 largest. In our 3rd spot we have Paulo.

Founded in 1943, Paulo is the largest privately held provider of thermal processing and metal finishing solutions in North America. Headquartered in St. Louis, Paulo operates six divisions servicing the Midwest, Great Lakes, and Southeast regions of the United States and northern Mexico. Paulo has been family owned and operated since the beginning, now the fourth generation carry on the business Ben and Pauline Rassieur started 77 years ago. The processes we offer include a wide range with some specialization based on the local markets while retaining redundancy for contingency planning. We provide the traditional heat treat processes via batch IQ’s, vacuums, and continuous belts.  In addition to those core services we provide nitriding, HIP, brazing,  zinc plating, and black oxide at select locations.

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