The Monty’s 50 Largest North American Commercial Heat Treats 2021 – #33 Lake City Heat Treating, Warsaw, Indiana

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 33rd spot we have Lake City Heat Treating, Warsaw, Indiana.

Lake City Heat Treating in Warsaw, Indiana is part of a very small select group in that for years the company has offered Hot Isostatic Pressing which only a handful of companies can say. With roughly 13 vacuum furnaces and 3 “Hip” Vessels the company focuses on the medical and aerospace industries. Major shareholder is Mr. Bill Davis. Lake City has made our news section several times over the years, each time when the company was making a new equipment investment.

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