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.
Acquisition expands Solenis’ product offering for recreational pool and spa customers.Learn more
Acquisition provides Solenis with regional expansion in high-growth southeastern Europe.Learn More
Solenis is selected as a 2022 US Best Managed Company for excellence in strategy, education, culture, and financialsLearn More
Solenis is awarded Platinum Rating by EcoVadis for excellent Corporate Social Responsibility performance.Learn more
Platinum Equity acquires Solenis from Clayton, Dubilier & Rice and merges Sigura Water with Solenis, adding pool and spa water treatment solutions to the company’s portfolio.Learn more
Solenis is selected as a 2021 US Best Managed Company for excellence in strategy, execution, culture and financials.Learn more
Solenis and Diversey sign global partnership agreement, adding significant value to the food and beverage industry.Learn more
Solenis is awarded Gold status by EcoVadis for excellent Corporate Social Responsibility performance.Learn more
Solenis completes acquisition of Poliquímicos, expanding its offering to the Latin American market.Learn more
Solenis acquires the paper business of ChemSystems, expanding its ability to serve pulp and paper customers in Sub-Saharan Africa.Learn more
Solenis awarded Gold status by EcoVadis for excellent Corporate Social Responsibility performance.Learn more
Solenis receives NextGen Cup Challenge award for its TopScreen™ barrier coating technology.Learn more
Solenis and BASF combine paper and water businesses, creating a global specialty chemical company with expanded offerings.Learn more
Solenis opens new manufacturing plant in Zhuhai City, Guangdong Province, China.Learn more
Solenis acquires Topchim NV to expand its offering to the pulp and paper industry with novel barrier coating technologies.Learn more
Solenis acquires Nopco Colombiana S.A. to offer expanded solutions to process and water treatment markets in Central and South America.Learn more
Solenis receives a 2017 Manufacturing Leadership Award from Frost & Sullivan for its work on the Ashland divestiture.Learn more
Solenis opens new technology center in Paulínia, São Paulo, Brazil, expanding its ability to serve customers in Latin America.Learn more
Solenis acquires Nopco Holding AS to broaden its offering to the pulp and paper industry with novel defoamer and deinking technologies.Learn more
Solenis granted U.S. and European patents for its Biobond℠ technology, an innovative program that improves the sustainability of recycled paperboard.Learn more
Solenis acquires Nuplex Pulp & Paper business from Nuplex Industries Australia Pty Limited to offer a broader range of solutions to customers in Australia and New Zealand.Learn more
Solenis acquires Dutch company Lostris International B.V. and Wester Blend B.V., expanding its product offering to the pulp and paper industry and its geographic presence.Learn more
Solenis acquires Quimatec Produtos Químicos Ltda., expanding its offerings to the global sugar and ethanol markets.Learn more
EHS Today magazine names Solenis one of America’s safest companies.Learn more
ABTCP names Solenis best chemical supplier of 2015 for Brazilian pulp and paper industry.Learn more
Solenis acquires the pulp and paper assets represented by Connell Bros. Company Private Limited in India, expanding its ability to directly serve Indian customers.Learn more
Solenis opens its world headquarters in Wilmington, Delaware.Learn more
Solenis acquires Clearwater Specialties LLC, expanding its offering to the tissue and towel markets.Learn more
Solenis is granted a U.S. patent for its corn oil extraction aids, which improve the separation of corn oil during ethanol production.Learn more
Solenis opens its European headquarters in Schaffhausen, Switzerland.
Solenis is launched following the acquisition of Ashland Water Technologies by a fund managed by Clayton, Dubilier & Rice.Learn more
Ashland acquires Hercules Incorporated, positioning itself in the top tier of global specialty chemical companies.
Hercules receives a Presidential Green Chemistry Challenge Award for its formaldehyde-free, soy-based adhesives.Learn more
Hercules celebrates the 75th anniversary of its Research Center in Wilmington, Delaware.
Ashland acquires Stockhausen water treatment business from Degussa AG.
Hercules acquires BetzDearborn Inc., establishing itself as the leading global producer of specialty papermaking chemicals.
Hercules acquires the paper chemicals group of Houghton International Inc.
Betz Laboratories acquires Grace Dearborn water treatment and process chemicals business from W.R. Grace & Co., launching BetzDearborn Inc.
Ashland acquires the Drew Industrial business of Drew Chemical Corporation, establishing itself as a global player in industrial water treatment.
Hercules files the first patent application for PAE resins, ushering in 60-plus years of wet-strength resin use in papermaking.Learn more
Betz Laboratories is founded as a water purification compound business by a father and son duo in Philadelphia, Pennsylvania.
Ashland Refining Company is founded as the refining arm of the Swiss Oil Company by Paul G. Blazer.
Hercules Powder Company is founded following the breakup of DuPont’s explosives and gunpowder business.
Founded by E. F. Drew in Boston, Massachusetts, E. F. Drew & Company starts out in the vegetable oil business but soon adds a water treatment line focused on boilers.