May M&A Transactions in AEC

May 23, 2025

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May 1 – Colliers Engineering & Design (Red Bank, NJ) acquired CST Group (Duluth, GA), a telecommunications engineering firm specializing in wireless infrastructure, fiber network design, and program management. The acquisition expands Colliers’ capabilities in telecom engineering and strengthens its position in the Southeastern U.S. market. More information 

May 6 – Pape-Dawson Engineers (San Antonio, TX) acquired Morris Engineering (Naples, FL), a civil engineering and land surveying firm. The acquisition expands Pape-Dawson’s footprint in Florida and strengthens its capabilities in land development and infrastructure services across the region. More information 

May 12Array Architects (Philadelphia, PA) acquired IHR Architecture (King of Prussia, PA), strengthening its healthcare design capabilities and expanding its regional presence. More information 

May 14 – Colliers (Toronto, ON) acquired Higher Ground Consulting (Calgary, AB), an engineering and environmental firm specializing in regulatory compliance, construction inspection, and water resource management. The acquisition expands Colliers’ environmental service offerings and strengthens its presence in Western Canada. More information 

May 15 – QK (Visalia, CA) acquired Terra Technologies (Olathe, KS), an engineering and environmental firm specializing in wetland mitigation, stream restoration, and infrastructure design. The acquisition expands QK’s geographic reach into the Midwest and strengthens its environmental and civil engineering services. More information 

May 16 – Arcadis (Amsterdam, Netherlands) acquired KUA Group (Singapore), a specialist engineering firm focused on data center design and project delivery. The acquisition enhances Arcadis’ capabilities in the fast-growing data center market across Asia, particularly in mission-critical infrastructure. More information 

May 17 – Englobe Corporation (Laval, QC) acquired Herold Engineering (Nanaimo, BC), a multidisciplinary engineering firm known for its work in structural, civil, and building envelope services. The acquisition strengthens Englobe’s presence in Western Canada and expands its capabilities across infrastructure and building sectors. More information 

May 20 – Progressive AE (Grand Rapids, MI) acquired MHAworks (Durham, NC), an architecture firm with expertise in healthcare, higher education, and commercial projects. The acquisition expands Progressive AE’s footprint in the Southeast and enhances its design capabilities across key markets. More information 

May 20 – Ardurra Group (Tampa, FL) acquired Cannon & Cannon, Inc. (Knoxville, TN), a consulting firm specializing in civil and transportation engineering. The acquisition expands Ardurra’s presence in Tennessee and enhances its capabilities in infrastructure and municipal services. More information 

May 20 – TP Bennett (London, UK) acquired Bluehaus Group (Dubai, UAE), a leading design and consultancy firm specializing in architecture, interior design, and engineering. The acquisition expands TP Bennett’s international footprint and strengthens its presence in the Middle East’s commercial and workplace sectors. More information  

May 21 – Black & White Engineering (Newcastle upon Tyne, UK) acquired Homan O’Brien (Dublin, Ireland), a leading MEP consultancy. The acquisition strengthens Black & White’s presence in Ireland and enhances its global capabilities in sustainable building services design, particularly in commercial, life sciences, and mission-critical sectors. More information 

May 21 – Shermco Industries (Irving, TX) acquired R3L Engineering (Edmonton, AB), a power systems engineering firm specializing in electrical engineering, protection and control, and SCADA systems. The acquisition expands Shermco’s engineering capabilities and strengthens its presence in the Canadian market. More information 

May 21 – Langan Engineering & Environmental Services (Parsippany, NJ) acquired NAVIX Engineering (San Juan, PR), a firm specializing in civil engineering and land development. The acquisition strengthens Langan’s presence in the Caribbean and expands its capabilities in commercial, hospitality, and infrastructure projects across the region. More information 

May 21 – Invision Architecture (Waterloo, IA) acquired Studio 8 Design (Atlanta, GA), an architecture firm known for its work in healthcare, education, and commercial sectors. The acquisition supports Invision’s national expansion strategy and strengthens its presence in the Southeast. More information 

May 21Johnson, Mirmiran & Thompson (JMT) (Hunt Valley, MD) welcomed the clients and staff of Clark Nexsen’s Virginia Beach office, broadening its multidisciplinary architecture and engineering services in the Mid-Atlantic region. More information 

May 22INVISION (Des Moines, IA) acquired MacGregor Associates Architects (Atlanta, GA), a firm specializing in industrial and logistics architecture, marking INVISION’s expansion into the Southeastern U.S. More information 

May 22McKim & Creed (Raleigh, NC) acquired Landmark Science & Engineering (Newark, DE), enhancing its water resources, environmental, and site/civil engineering expertise in the Mid-Atlantic region. More information 

May 27Trinity Consultants (Dallas, TX) acquired Zanjero (Phoenix, AZ), a water resource management firm, expanding Trinity’s environmental and water consulting services across the Southwest. More information 

About Zweig Group

Zweig Group, a four-time Inc. 500/5000 honoree, is the premier authority in AEC management consulting, the go-to source for industry research, and the leading provider of customized learning and training. Zweig Group specializes in four core consulting areas: Talent, Performance, Growth, and Transition, including innovative solutions in mergers and acquisitions, strategic planning, financial management, ownership transition, executive search, business development, valuation, and more. Zweig Group exists to help AEC firms succeed in a competitive marketplace. The firm has offices in Dallas and Fayetteville, Arkansas.