The Rapid Group Acquires O&M Solutions, LLC

The Rapid Group Acquires Pumping Solutions, Inc.

December 10, 2025

Industrial Services

The Rapid Group, a portfolio company of Hidden Harbor Capital Partners, has acquired Pumping Solutions, Inc., a Clifton, New Jersey provider of pump service, repair, machine-shop capabilities and emergency response for high‑rise commercial and residential buildings. The add-on expands TRG’s service capabilities and geographic reach into the Northern New Jersey/New York metropolitan market while Pumping Solutions’ management will continue to run day-to-day operations.

Hidden Harbor Capital Partners Acquires Machinery Services Corp. & Rapid Pump & Meter Service Co.

August 29, 2022

Industrial Services

Hidden Harbor Capital Partners, a Boca Raton-based private equity firm, acquired Machinery Services Corp. and Rapid Pump & Meter Service Co. (MSC&RPM), a Paterson, New Jersey provider of pump, motor and water/wastewater infrastructure services. The acquisition closed July 21, 2022; Hidden Harbor will partner with management to pursue growth and expand MSC&RPM's footprint in municipal, industrial and transportation end markets.

CenterOak Partners Majority Recapitalizes HK Solutions Group

July 14, 2021

Environmental Services

CenterOak Partners completed a majority recapitalization of HK Solutions Group, a Des Moines-based provider of water and wastewater infrastructure inspection, cleaning, repair and industrial services in the U.S. Midwest. The HK Solutions management team, led by CEO Wade Anderson, will remain in place as CenterOak plans to grow the business organically and via add-on acquisitions to expand service capabilities and market presence.

Whitewater Management Acquires Orion Water Solutions

March 3, 2025

Environmental Services

Whitewater Management, a Hillcore Group–owned fluid management company based in Calgary, has acquired Orion Water Solutions, a Permian Basin–based provider of advanced wastewater treatment systems. The deal integrates Orion’s DAF, chlorine dioxide and biological treatment technologies into Whitewater’s service offering to expand capabilities across oil & gas, mining and municipal infrastructure and support North American growth.

North American Rail Solutions / American Track Acquires Rapid Track

June 26, 2025

Transportation

North American Rail Solutions, through its subsidiary American Track, has acquired Rapid Track, a Tyrone, Georgia-based rail maintenance and construction services provider. The deal expands American Track's footprint in the Southeast U.S.; Rapid Track's owners Shannon and Brandi Shockley will transition following the sale.

M33 Growth Recapitalizes O3 Solutions

May 30, 2024

Software

M33 Growth has recapitalized O3 Solutions to accelerate growth, enhance client success, and advance product innovation for its Advanced Work Packaging construction project management software. O3 Solutions, founded in 2016, provides a scalable SaaS platform used by owner-operators, EPC firms, and contractors across industrial capital projects.