There were few surprises when it came to identifying the largest custom mixers in North America. When ranked by sales, Hexpol takes the No. 1 spot with 2021 sales at the upper end of the $500 million-$999 million range. Air-Boss ranks No. 2, with sales falling in the $100 million-$499 million range. Both of these companies are publicly held-the only two such firms in the rankings-with Hexpol North America's parent, Hexpol A.B., based in Sweden, and AirBoss in Canada.
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