March 5, 2025 – Natick, MA – Environmental Science Associates (ESA), a firm providing planning, design, permitting, technology, mitigation, and habitat restoration services, announces the acquisition of 48 North Solutions, Inc. (48 NORTH), an Issaquah, WA-based firm recognized for its work in marine and freshwater environments. This acquisition strengthens ESA's Fish and Aquatic Sciences practice and expands its service offerings for clients in the energy, community development, and technology markets.

March 4, 2025 – Fargo, ND – Ulteig, an engineering firm, announces the acquisition of Paradigm Environmental, a consulting firm that combines advanced technology with water industry expertise. This acquisition enhances Ulteig's capabilities in water resource management, providing world-class solutions focused on sustainability and resiliency.

March 3, 2025 – Washington, D.C. – Signal Hill Equity Partners, a middle-market private equity firm that invests in architecture, engineering, and consulting (AEC) and essential service businesses, announces a partnership with ZMM Architects and Engineers, a leading architecture and engineering services firm primarily serving the education and state & local government sectors. This partnership aims to grow a national architecture, engineering, and design platform, building on Signal Hill's previous investment in CSArch.

March 3, 2025 – Dallas, TX – Trinity Consultants, a leading environmental consulting firm, announces the acquisition of Safety Partners, a firm specializing in environmental health and safety (EHS) services for life sciences companies. This acquisition strengthens Trinity's position as a market leader in the life sciences health and safety space.

February 25, 2025 – Parsippany, NJ – Langan Engineering & Environmental Services, a premier provider of integrated land development engineering and environmental consulting services, announces the acquisition of ATR Engineering, a Houston-based site/civil engineering firm specializing in land development across sectors including commercial, warehouse, and multifamily residential. This acquisition marks Langan's third in Texas, expanding its workforce in the state to 140 employees.

February 24, 2025 – Pittsburgh, PA – Stratus Team, LLC, an integrated engineering, architecture, and consulting firm, announces the acquisition of Engineering Strategies, Inc. (ESI), a Marietta, GA-based firm specializing in water and wastewater engineering services. This strategic acquisition strengthens Stratus' capabilities in municipal and industrial water resources design and enhances its market presence in the southeastern United States.

February 21, 2025 – Lincoln, NE – Olsson, a nationally recognized engineering and design firm, announces a pending purchase agreement to acquire Darr & Collins, an Oklahoma-based leader in the design of mechanical, electrical, and plumbing (MEP) systems. This acquisition will bolster Olsson's MEP services and expand its presence across Oklahoma.

For a list of PSMJ's M&A transactions, click HERE.