Zweig Group is the leading advisory firm for the AEC industry, providing expert guidance across the entire M&A lifecycle. With deep industry knowledge and decades of experience, we help firms navigate transactions, maximize value, and create long-term growth opportunities for shareholders. Whether you're buying, selling, or planning for the future, our Mergers & Acquisitions Advisory team is here to support you every step of the way.
May 1 – IMEG Corp. (Rock Island, IL), an engineering firm, acquired AGM Energy Services (Twinsburg, OH), a commissioning and systems integration firm, and Palmer Conservation Consulting (Toledo, OH), an energy management firm. The acquisitions strengthen IMEG’s energy and sustainability services platform. [More information]
May 1 – Roger Hannah (Manchester, UK), a surveying and commercial property management firm, acquired Wilkinson Cowan Partnership (Cheadle Hulme, UK), a surveying and project management firm. The acquisition expands Roger Hannah’s project advisory services in the UK. [More information]
May 4 – MARLIN Engineering (Miami, FL), a transportation engineering and planning firm, joined IMEG Corp. (Rock Island, IL). The transaction expands IMEG’s transportation infrastructure and bridge engineering capabilities.[More Information]
May 4 – Bowman Consulting Group (Reston, VA), an engineering and infrastructure services firm, acquired Smith & Associates Land Surveying (Las Vegas, NV), a land surveying firm specializing in development and infrastructure projects. The acquisition strengthens Bowman’s surveying capabilities in the Southwest. [More information]
May 4 – DCCM (Houston, TX), a design, consulting, and construction management firm, acquired Dynamic Solutions (Knoxville, TN), a firm specializing in water resources and hydraulic modeling. The acquisition expands DCCM’s water infrastructure and modeling expertise. [More information]
May 4 – Traffic & Mobility Consultants (Orlando, FL), a transportation planning and traffic engineering firm, acquired Chindalur Traffic Solutions (Jacksonville, FL), a transportation engineering firm serving public and private clients. The acquisition strengthens Traffic & Mobility Consultants’ transportation services platform in Florida. [More information]
May 4 – Galloway & Company (Greenwood Village, CO), a multidisciplinary architecture and engineering firm, acquired Z Development Services (Orlando, FL), a civil engineering firm. The acquisition expands Galloway’s civil engineering presence in Florida. [More information]
May 4 – Torti Gallas and Partners (Washington, D.C.), an architecture, urban design, and planning firm, acquired Wiencek + Associates Architects + Planners (Washington, D.C.), a firm specializing in socially responsible and sustainable design. The acquisition strengthens Torti Gallas’ urban design and housing capabilities. [More information]
May 4 – Sandman Structural Engineers (Moorhead, MN) acquired Mattson Macdonald Young (Minneapolis, MN), a structural engineering firm serving commercial, industrial, multifamily, and historic preservation markets. The acquisition expands Sandman’s structural engineering expertise in Minnesota. [More information]
May 4 – Groupe Snef, through its engineering subsidiary Ekium (Lyon, France), made a strategic investment in Norda Stelo (Quebec City, Canada), an engineering consulting firm. The investment strengthens Ekium’s North American engineering platform. [More information]
May 4 – A1 Consult (Randers, Denmark), an engineering firm specializing in port, marine, and climate adaptation infrastructure, joined XPartners (Stockholm, Sweden), a platform of environmental and civil engineering firms. The transaction expands XPartners’ marine and coastal engineering capabilities. [More information]
May 5 – Cityfi (Washington, D.C.), a strategy and innovation consultancy focused on cities and mobility, joined CannonDesign (New York, NY), an integrated design firm. The transaction strengthens CannonDesign’s urban innovation and mobility advisory services. [More information]
May 5 – Sellick Consultants (Braddon, Australia), a structural, civil, and hydraulic engineering firm, entered into an agreement to acquire parts of Indesco (Canberra, Australia), a civil, structural, façade, and traffic engineering firm. The transaction expands Sellick Consultants’ multidisciplinary engineering capabilities in Australia. [More information]
May 5 – Burns Engineering (Philadelphia, PA), an engineering firm specializing in transportation and critical infrastructure, acquired Pacific Railway Enterprises (Riverside, CA), a rail signaling and engineering firm. The acquisition expands Burns Engineering’s rail systems capabilities. [More information]
May 5 – Willdan Group (Anaheim, CA), a professional and technical consulting services firm, acquired Burton Energy Group (Alpharetta, GA), an energy management services firm. The acquisition strengthens Willdan’s energy advisory and sustainability platform. [More information]
May 5 – Armko (Flower Mound, TX), a building envelope consulting firm, acquired Kuhn & Associates (Houston, TX), a building envelope firm serving education, municipal, and multifamily markets. The acquisition expands Armko’s building envelope services in Texas. [More information]
May 5 – Vistal (West Fargo, ND) acquired WHS (Green River, WY), a civil engineering, planning, and surveying firm, and FARR Technologies (Sioux Falls, SD), a communications engineering and technology services firm. The acquisitions expand Vistal’s infrastructure and broadband engineering capabilities. [More information]
May 5 – RSK Group (Helsby, UK), an environmental consulting and engineering firm, acquired HV Energy Systems (Bristol, UK), a provider of high-voltage grid connection infrastructure for renewable energy and storage projects. The acquisition strengthens RSK’s renewable energy infrastructure services. [More information]
May 6 – Prestige Environmental (Somerset, NJ), an environmental consulting firm specializing in due diligence, compliance, waste management, and remediation, joined LaBella Associates (Rochester, NY), an architecture, engineering, environmental, and planning firm. The transaction expands LaBella’s environmental consulting capabilities in the Northeast.[More Information}
May 6 – Populous (Kansas City, MO), an architectural and design firm, acquired OJB Landscape Architecture (Houston, TX), a landscape architecture and urban design firm. The acquisition strengthens Populous’ integrated design capabilities across sports, entertainment, and public spaces. [More information]
May 6 – SOCOTEC (Saint-Quentin-en-Yvelines, France), a testing, inspection, and certification firm, acquired LSTC Group (Driffield, UK), a firm serving the electrical transmission and distribution network sectors. The acquisition expands SOCOTEC’s engineering and asset inspection services in the UK. [More information]
May 6 – Ridge and Partners (Woodstock, UK), a built environment consulting firm, acquired Hub Transport Planning (Birmingham, UK), a transport assessment, strategy, and design consultancy. The acquisition strengthens Ridge and Partners’ transportation planning capabilities. [More information]
May 7 – CivilOne (Las Vegas, NV), a civil engineering and land surveying firm, acquired Dwyer Engineering (Las Vegas, NV), a civil engineering firm specializing in infrastructure and land development design. The acquisition expands CivilOne’s engineering services platform in Nevada. [More information]
May 7 – AtkinsRéalis (Montreal, Canada), an engineering and nuclear services firm, entered into a definitive agreement to acquire Coras Solutions (Braddon, Australia), a defense and national security advisory firm. The acquisition strengthens AtkinsRéalis’ defense and security consulting capabilities in Australia. [More information]
May 7 – ORS (Dublin, Ireland), a multidisciplinary engineering firm, acquired GDCL (Dublin, Ireland), a civil and structural engineering firm. The acquisition expands ORS’s engineering services platform in Ireland. [More information]
May 8 – Stonewall Studios (Lafayette, LA), an architecture and design platform, added MNK Architects (El Paso, TX) to its network of design studios. The addition expands Stonewall Studios’ presence in the Southwest and strengthens its education, healthcare, and civic design capabilities. [More information]
May 11 – SAM (Austin, TX), a geospatial firm serving utilities, transportation, and infrastructure clients, acquired Donaldson, Garrett & Associates (Macon, GA), a land surveying firm serving commercial, utilities, and local government clients. The acquisition expands SAM’s surveying platform in the Southeast. [More information]
May 12 – Colliers Engineering & Design (Holmdel, NJ) entered into a definitive agreement to partner with Frankfurt-Short-Bruza Associates (Oklahoma City, OK), a provider of MEP, structural engineering, and architectural services. The partnership expands Colliers Engineering & Design’s building systems and architectural capabilities. [More information]
May 12 – J.S. Held (Jericho, NY), a consulting firm specializing in technical, scientific, financial, and strategic advisory services, acquired Clark Seif Clark (Los Angeles, CA), an environmental consulting firm specializing in industrial hygiene, environmental engineering, and regulatory compliance. The acquisition strengthens J.S. Held’s environmental health and safety services platform. [More information]
May 13 – AtkinsRéalis (Montreal, Canada), an engineering and nuclear services firm, entered into a definitive agreement to acquire TOBIN (Galway, Ireland), a firm specializing in engineering, project management, environmental, and planning services. The acquisition strengthens AtkinsRéalis’ engineering and environmental services platform in Ireland. [More information]
May 13 – Mott MacDonald (Croydon, UK), a global engineering, management, and development consulting firm, acquired Leed Engineering & Construction (Kent Town, Australia), a multidisciplinary engineering and construction firm specializing in complex infrastructure projects. The acquisition strengthens Mott MacDonald’s infrastructure delivery capabilities in Australia. [More information]
May 14 – Hermann & Associates (Peoria Heights, IL), a transportation and infrastructure engineering firm, joined Baxter & Woodman (Crystal Lake, IL), an infrastructure planning, design, and construction services firm. The transaction expands Baxter & Woodman’s transportation engineering capabilities in Illinois. [More Information]
May 14 – Alta Science & Engineering (Moscow, ID), a science and engineering firm specializing in environmental and infrastructure services, joined WSB (Minneapolis, MN), an infrastructure engineering and consulting firm. The transaction strengthens WSB’s environmental and infrastructure services platform in the Western United States. [More Information]
May 14 – Petrie Buchanan (Glasgow, UK), a utilities infrastructure specialist, joined Wallace Whittle (Glasgow, UK), an ESG, sustainability, and MEP engineering firm. The transaction expands Wallace Whittle’s utilities infrastructure expertise. [More information]
May 15 – Cumming Group (New York, NY), a project and construction management firm, acquired RGD Project Management (Cary, NC), a project management firm specializing in pharmaceuticals and life sciences projects. The acquisition strengthens Cumming Group’s life sciences project delivery capabilities. [More information]
May 15 – Graham Associates (Fort Worth, TX), a civil engineering and surveying firm, joined Parkhill (Lubbock, TX), a multidisciplinary architecture and engineering firm. The transaction expands Parkhill’s civil engineering and surveying capabilities in Texas. [More information]
May 18 – Aventia (Lakewood, CO), an environmental services platform, acquired ECM Consultants (Metairie, LA), an engineering, architecture, and construction management firm specializing in infrastructure and resilience projects. The acquisition broadens Aventia’s infrastructure and resilience consulting services. [More information]
May 18 – Alliance Technical Group (Decatur, AL), an environmental testing, monitoring, and compliance services firm, acquired the leak detection and repair assets of Atlas Technical Consultants (Austin, TX). The acquisition expands Alliance Technical Group’s emissions monitoring and compliance capabilities. [More information]
May 18 – Phenna Group (Nottingham, UK), a testing, inspection, certification, and compliance services firm, acquired RMEC Environmental (Bountiful, UT), a provider of environmental and occupational health and safety services. The acquisition strengthens Phenna Group’s environmental consulting platform in North America. [More information]
May 19 – MSA (Baraboo, WI), an employee-owned consulting firm, acquired ME3 Consulting Engineers (Sarasota, FL), an MEP engineering design firm serving commercial, education, healthcare, hospitality, and retail markets. The acquisition expands MSA’s building systems engineering capabilities. [More information]
May 19 – Stratus Team (Coraopolis, PA), an engineering, architecture, and consulting firm, acquired Page Interworks (North Wilkesboro, NC), an MEP and fire protection engineering firm. The acquisition enhances Stratus Team’s building engineering services. [More information]
May 20 – ADF Engineering (Miamisburg, OH), a multidisciplinary process and facility engineering firm, entered into a strategic partnership with Heartland Growth Partners (Columbus, OH). The partnership supports ADF Engineering’s continued growth and expansion. [More information]
May 20 – TDM Specialists (San Francisco, CA), a transportation demand management consulting firm, joined Galloway & Company (Greenwood Village, CO), a multidisciplinary architecture and engineering firm. The transaction expands Galloway’s mobility planning and transportation consulting services. [More information]
May 21 – Bowman Engineering & Consulting (Dallas, TX), a civil and transportation engineering firm, joined GHD (Sydney, Australia), a global engineering and consulting firm. The transaction strengthens GHD’s transportation and infrastructure capabilities in Texas. [More information]
May 21 – Certerra (Rancho Cucamonga, CA), a testing, inspection, and certification services firm, entered into a strategic partnership with Southern Engineering (Charlotte, NC), a geotechnical engineering, construction materials testing, and special inspections firm. The partnership expands Certerra’s geotechnical and testing capabilities in the Southeast. [More information]
May 27 – Wold Architects & Engineers (Minneapolis, MN), a planning and architecture and engineering firm specializing in education, healthcare, government, and senior living, acquired JJCA (Nashville, TN), an architecture firm focused on healthcare and education design. The acquisition expands Wold’s presence in the Southeast. [More information]
May 27 – ONDEX Automation (Chicago, IL), a process automation systems integration firm, acquired The Fitch Company (Rumford, ME), an electrical engineering and automation systems integrator serving industrial markets. The acquisition strengthens ONDEX Automation’s industrial automation capabilities. [More information]
May 27 – FUSION (Dallas, TX), a multidisciplinary design practice, was formed through the integration of ID Studio 4 (Dallas, TX), Sperides Reiners Architects (Minneapolis, MN), ACi Architects (Orlando, FL), and Reztark Design Studio (Cincinnati, OH). The combined firm brings together architecture, engineering, interiors, branding, and strategy services under a single platform. [More information]
May 27 – Michael Graves Architecture & Design (Princeton, NJ), a planning, architecture, and interior design firm, acquired Woodcock Design (Philadelphia, PA), an architecture firm specializing in adaptive reuse, historic preservation, and institutional projects. The acquisition expands Michael Graves Architecture & Design’s preservation and adaptive reuse expertise. [More information]
May 28 – Certerra (Rancho Cucamonga, CA), a testing, inspection, and certification services firm, acquired HP2 Engineering (San Marcos, TX), a construction materials engineering and testing firm specializing in asphalt and pavement engineering. The acquisition strengthens Certerra’s transportation materials testing capabilities. [More information]
May 28 – Englobe (Quebec City, Canada), an engineering services platform, entered into an agreement to acquire Pluritec (Trois-Rivières, Canada), an engineering firm specializing in infrastructure, transportation, water, structural, environmental, and building engineering. The acquisition expands Englobe’s engineering platform across Québec. [More information]
May 28 – DEE Teknisk Rådgivning (Støvring, Denmark), a commissioning and building systems engineering firm, joined XPartners (Stockholm, Sweden), a platform of environmental and civil engineering firms. The transaction expands XPartners’ building engineering expertise. [More information]
May 28 – Uniwater (Hisings Kärra, Sweden), a water and wastewater services platform, entered into an agreement to acquire Water Engineering AB (Mälardalen, Sweden), an engineering firm specializing in water and wastewater facilities. The acquisition strengthens Uniwater’s project delivery capabilities. [More information]
May 29 – Phenna Group (Nottingham, UK), a testing, inspection, certification, and compliance services firm, acquired V2i (Liège, Belgium), a specialist in mechanical systems testing and validation, and Optrion (Liège, Belgium), a precision optical measurement and inspection firm. The acquisitions expand Phenna Group’s advanced testing capabilities. [More information]
