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Our History

A legacy of problem-solving for water-intensive industries.

For more than 100 years, we have been driving value for our customers in water-intensive industries by helping them solve complex water treatment and process improvement challenges. Learn more about our rich history, which includes legacy companies such as Drew, Betz Laboratories, Hercules, Stockhausen and Ashland Water Technologies, as well as our recent acquisitions and milestones as Solenis.