Cleanwater1 Acquires PureAir Filtration

Cleanwater1 Acquires Integrity Municipal Systems (IMS)

February 4, 2025

Environmental Services

Cleanwater1, a Baird Capital–backed water technologies platform, has completed the acquisition of Integrity Municipal Systems (IMS), a designer and supplier of packaged lime slaking, chemical feed, odor control and related process systems for municipal and industrial water/wastewater customers. The deal expands Cleanwater1’s engineered solutions and service capabilities for lime systems, odor control and chemical feed systems.

cleanwater1 Acquires Velocity Dynamics, LLC

January 3, 2024

Environmental Services

cleanwater1 (formerly UGSI Solutions), a Baird Capital portfolio company, has acquired Velocity Dynamics, LLC, a provider of proprietary dry and liquid feed systems for chemistry optimization in water/wastewater utilities and industrial plants. The deal expands cleanwater1’s product and engineering capabilities in polymer blending, chemical feed and bulk handling to support customers facing higher chemical costs and stricter environmental requirements.

RapidAir (Engineered Specialties) Acquires Alpha-Pure Corporation

December 7, 2021

Industrial Services

Engineered Specialties, LLC d.b.a. RapidAir (a Pfingsten portfolio company) has acquired Alpha-Pure Corporation, a Michigan City, Indiana-based distributor of compressed air treatment and condensate management products. The add-on deal expands RapidAir's product portfolio and customer reach across distributors, contractors, automotive and farm & ranch retailers; the transaction closed November 19, 2021.

Komline-Sanderson Group Acquires BI Pure Water

October 30, 2025

Industrial Services

Komline-Sanderson Group, Inc. has acquired BI Pure Water, a Surrey, British Columbia–based provider of custom-engineered modular and skid-mounted water and wastewater treatment systems. The transaction, advised by Generational Group, closed on October 30, 2025 and expands Komline-Sanderson’s capabilities and geographic footprint in engineered water treatment solutions.

Filtration Group (Madison Industries) Acquires Molecular Products from Arlington Capital Partners

June 7, 2021

Manufacturing

Filtration Group, an affiliate of Madison Industries, has acquired Molecular Products, a global provider of pure air technologies, from Arlington Capital Partners. The deal brings Molecular's advanced chemical-based air treatment products and manufacturing capabilities into Filtration Group's portfolio to expand its life- and mission-critical filtration offerings across healthcare, defense and industrial markets.

Rensa Filtration Acquires Air Filtration Co., Inc.

January 27, 2025

Manufacturing

Rensa Filtration, a PE-backed manufacturer and distributor of air filtration products, has acquired Air Filtration Co., Inc., a family-owned maker and distributor of spray booth and industrial air filters with production facilities in Lancaster, California and Corydon, Iowa. The deal expands Rensa's geographic footprint in California and Iowa and adds Air Filtration Co.'s spray booth filtration product line to Rensa's portfolio.