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.
December 1 – McKim & Creed (Raleigh, NC), an engineering, planning, and geospatial services firm, acquired Signature Automation (Dallas, TX), an engineering consulting firm serving municipal, water and wastewater, and correctional markets. The acquisition strengthens McKim & Creed’s automation and controls capabilities. [More information]
December 1 – Cresa (Chicago, IL), a commercial real estate advisory firm, acquired CMPG (Diamond Bar, CA), a project management services firm supporting construction projects across office, public sector, transit, laboratory, industrial, and retail markets. The acquisition expands Cresa’s project management platform. [More information]
December 1 – Bellrock (Leicester, UK), a facilities management firm, acquired Axiom (Edinburgh, UK), a property and construction firm with experience in leisure, residential, and industrial sectors. The acquisition strengthens Bellrock’s property services capabilities in Scotland. [More information]
December 1 – Rural Solutions (Skipton, UK), a planning, architecture, and landscape architecture firm, joined Celnor Group (London, UK), a group of companies offering testing, inspection, certification, and compliance services. The transaction expands Celnor’s built environment advisory offerings. [More information]
December 1 – BluMetric Environmental (Ottawa, Canada), an environmental consulting and WaterTech engineering firm, entered into a definitive share purchase agreement to acquire DS Consultants (Vaughan, Canada), an environmental and geotechnical engineering firm. The acquisition strengthens BluMetric’s geotechnical and environmental service capabilities. [More information]
December 2 – ZenaTech (Toronto, Canada), a technology firm specializing in AI drones, Drone as a Service, enterprise SaaS, and quantum computing solutions, acquired Smith Surveying Group (Jacksonville, FL), a land surveying and inspection firm. The acquisition expands ZenaTech’s U.S. geospatial services platform. [More information]
December 2 – Concept Development & Planning (Austin, TX), a community engagement and strategic communications firm, joined LJA Engineering (Houston, TX), an employee-owned engineering firm. The transaction strengthens LJA’s public engagement and stakeholder communications capabilities. [More information]
December 2 – AtkinsRéalis (Montreal, Canada), an engineering services and nuclear firm, acquired ADG (Brisbane, Australia), a firm specializing in civil, structural, and digital engineering for transportation infrastructure, urban renewal, and commercial development. The acquisition expands AtkinsRéalis’ Asia-Pacific engineering footprint. [More information]
December 2 – Legence (San Jose, CA), an integrated provider of energy efficiency and sustainability solutions, acquired Innovative Mechanical & Design (Fort Collins, CO), a mechanical and plumbing contractor specializing in building systems installation and service. The acquisition expands Legence’s mechanical services platform. [More information]
December 2 – ZenaTech (Toronto, Canada), a technology firm specializing in AI drones, Drone as a Service, enterprise SaaS, and quantum computing solutions, acquired Casado Design (Weston-super-Mare, UK), a land surveying and inspection firm with expertise in 3D modeling and scanning for telecom and infrastructure projects. The acquisition expands ZenaTech’s geospatial and digital surveying capabilities in the UK. [More information]
December 2 – setec (Paris, France), a multidisciplinary engineering firm, acquired Kasadenn (La Chapelle-sur-Erdre, France), a consulting firm specializing in project management, quality systems, training, and operational assistance. The acquisition strengthens setec’s advisory and project governance capabilities. [More information]
December 3 – Vanasse Hangen Brustlin (VHB) (Watertown, MA), a multidisciplinary engineering and design firm, entered into an agreement to join forces with Drive Engineering (Lansdale, PA), a transportation engineering firm focused on applying technology to improve mobility and traffic operations. The combination enhances VHB’s transportation systems and mobility services. [More information]
December 3 – Qualus (Lake Mary, FL), a power infrastructure solutions provider, acquired Aquawolf (Lakewood, CO), a transmission and distribution engineering firm focused on high-voltage infrastructure. The acquisition strengthens Qualus’ transmission engineering capabilities. [More information]
December 3 – SOCOTEC (Saint-Quentin-en-Yvelines, France) acquired Advance Testing Company (Campbell Hall, NY) and AAR Testing and Inspection (Redmond, WA), firms specializing in construction materials testing and special inspection services. The acquisitions expand SOCOTEC’s testing and inspection footprint in the U.S. [More information]
December 3 – MCA Architects (Dublin, Ireland) and TTSP HWP (Frankfurt, Germany) merged to form an integrated European platform focused on the design, engineering, and delivery of large-scale data center projects. The merger strengthens capabilities in mission-critical facilities across Europe. [More information]
December 4 – J.S. Held (Jericho, NY), a consulting and advisory firm, acquired GLI Advisors (Bend, OR), a firm providing project and program management, owner’s representation, construction management, and cost review services. The acquisition expands J.S. Held’s project advisory capabilities. [More information]
December 4 – Haley Ward (Bangor, ME), an employee-owned engineering, environmental, and surveying consulting firm, acquired CCA (Brookfield, CT), a civil engineering, surveying, environmental consulting, and landscape architecture firm. The acquisition expands Haley Ward’s footprint in southern New England. [More information]
December 4 – Faller, Davis & Associates (Tampa, FL), a civil engineering firm specializing in transportation and environmental services, joined PRIME AE Group (Baltimore, MD), a multidisciplinary engineering and architecture firm. The transaction expands PRIME AE’s transportation and environmental footprint in Florida. [More information]
December 4 – Foth (De Pere, WI), an engineering and consulting firm, acquired Food Plant Engineering (Cincinnati, OH), a firm specializing in food and beverage manufacturing facility design. The acquisition enhances Foth’s capabilities in food and beverage industrial markets. [More information]
December 4 – The Kardham Group (Paris, France), a provider of architecture, space design, engineering, and digital services for the real estate sector, acquired DK Architectes (Paris, France), a firm specializing in data center design. The acquisition strengthens Kardham’s mission-critical and data center expertise. [More information]
December 4 – Nobis Group (Concord, NH), an environmental, geotechnical, and civil engineering firm, acquired Richard D. Bartlett & Associates (Concord, NH), a land surveying firm serving residential, commercial, and municipal clients. The acquisition expands Nobis Group’s in-house surveying capabilities. [More information]
December 5 – McAlister GeoScience (Long Beach, CA), an environmental services firm, acquired Orswell & Kasman (Pasadena, CA), an environmental due diligence firm. The acquisition strengthens McAlister GeoScience’s environmental risk and transaction support services. [More information]
December 8 – MSA (Baraboo, WI), an employee-owned consulting firm, acquired Haddad Engineering (Jacksonville, FL), a firm specializing in electrical and mechanical engineering. The acquisition expands MSA’s building systems expertise in the Southeast. [More information]
December 8 – CannonDesign (New York, NY), an integrated global design firm, expanded in the Southeast with the addition of Jenkins•Peer Architects (Charlotte, NC), a planning, architecture, and interior design firm. The transaction strengthens CannonDesign’s presence in higher education, science and technology, sports, civic, and cultural markets. [More information]
December 8 – Verdantas (Tampa, FL), an environmental and engineering consulting firm, acquired Crawford Environmental Services (Roanoke, VA), a firm specializing in environmental investigation, remediation, compliance, and emergency response. The acquisition expands Verdantas’s environmental services platform in the Mid-Atlantic region. [More information]
December 8 – Dunaway (Fort Worth, TX), a civil engineering, structural, landscape architecture, surveying, and construction inspection services firm, acquired Bontempo Structural Engineering (Austin, TX), a structural engineering firm. The acquisition strengthens Dunaway’s structural engineering capabilities in Texas. [More information]
December 8 – WSP (Montreal, Canada), a global engineering and consulting firm, acquired Harmonic Analytics (Wellington, New Zealand), a data science firm providing predictive modeling and decision optimization services. The acquisition enhances WSP’s digital analytics and data-driven advisory capabilities. [More information]
December 8 – Phenna Group (Nottingham, UK), a family of businesses providing testing, inspection, certification, and compliance services, acquired SERPRAM (Santiago, Chile), a firm offering environmental measurement, diagnostics, and control services. The acquisition expands Phenna’s footprint in South America. [More information]
December 8 – Carabiner (Perth, Australia), an architecture practice, joined Architectus (Melbourne, Australia), expanding the firm’s capabilities across sports, education, and healthcare design. [More information]
December 8 – Bowman Consulting Group (Reston, VA), an engineering and infrastructure services firm, acquired RPT Alliance (Houston, TX), a designer of natural gas transmission facilities and power generation infrastructure. The acquisition expands Bowman’s energy infrastructure and power delivery capabilities. [More information]
December 9 – RWDI (Guelph, Canada), a climate and environmental engineering firm, announced the addition of Wilson Ihrig (Emeryville, CA), an acoustics and vibration consulting firm. The combination strengthens RWDI’s building performance and environmental noise expertise. [More information]
December 9 – Jensen Hughes (Columbia, MD), a fire and life safety, security, and risk-based engineering and consulting firm, acquired Safety Management Services (West Jordan, UT), a specialist in process safety hazards analysis and energetic materials consulting and testing. The acquisition expands Jensen Hughes’ process safety capabilities. [More information]
December 9 – Trinity Consultants (Dallas, TX), an environmental and technical consulting firm, acquired Meridian Consultants (Westlake Village, CA), a firm specializing in community, environmental, and natural resource planning. The acquisition broadens Trinity’s planning and environmental services. [More information]
December 9 – Stratus Team (Coraopolis, PA), an engineering, architecture, and consulting firm, acquired E.A. Bonelli + Associates (Oakland, CA), a firm specializing in master planning and design of food, beverage, and cold storage facilities. The acquisition strengthens Stratus Team’s industrial and food manufacturing expertise. [More information]
December 9 – Delawie (San Diego, CA), an architecture and interior design firm, joined LEO A DALY (Omaha, NE), an architecture and engineering firm. The transaction expands LEO A DALY’s design capabilities on the West Coast. [More information]
December 9 – Turner & Townsend (Leeds, UK) announced its intention to acquire Profica (Johannesburg, South Africa), a firm specializing in real estate project management and construction services. The transaction supports Turner & Townsend’s expansion across Africa. [More information]
December 9 – Design 4 Structures (London, UK), a structural engineering firm, received an investment from Frontier Development Capital (Birmingham, UK). The investment supports the firm’s growth and service expansion. [More information]
December 10 – Brailsford & Dunlavey (Washington, D.C.) merged with Project Management Advisors (PMA) (Chicago, IL), forming an integrated platform providing planning, development advisory, and project delivery services across the full project lifecycle. [More information]
December 10 – RSK Group (Helsby, UK), an environmental consulting and services firm, acquired Civil Geotechnical Consultants (Brisbane, Australia), a specialist offering geotechnical investigation, design, construction services, aerial mapping, and asset management. The acquisition expands RSK’s geotechnical capabilities in Australia. [More information]
December 10 – AKS Engineering & Forestry (Tualatin, OR) strengthened its southern Oregon presence through the acquisition of Construction Engineering Consultants, CSA Planning, and Marquess & Associates (Medford, OR). The transactions expand AKS’s civil engineering, planning, and building systems capabilities in the region. [More information]
December 10 – Baxter & Woodman (Crystal Lake, IL), an infrastructure planning, design, and construction services firm, acquired McCranie & Associates (Fernandina Beach, FL), an engineering firm. The acquisition expands Baxter & Woodman’s presence and service offerings in the Southeast. [More information]
December 11 – Sequana (Melbourne, Australia), a strategic advisory and project management consulting firm, entered into new specialist partnerships with WolfPeak (Port Macquarie, Australia), an environmental and sustainability consultancy, and Factotum Communications (Sydney, Australia), a communications and engagement firm. The partnerships broaden Sequana’s environmental and stakeholder engagement capabilities. [More information]
December 15 – YA Group (St. Louis, MO), a forensic consulting, engineering, and risk mitigation services firm, acquired J.M. Reagan Consulting (Magnolia, TX), a multidisciplinary consulting firm specializing in property damage consulting and construction claims. The acquisition strengthens YA Group’s claims advisory and forensic services platform. [More information]
December 15 – Apex Companies (Rockville, MD), an environmental consulting and engineering firm, acquired AquaWorks DBO (Denver, CO), a civil and environmental engineering firm. The acquisition expands Apex’s water and environmental engineering capabilities. [More information]
December 16 – Salas O’Brien (Irvine, CA), an engineering and consulting firm, expanded its integrated design services through a strategic merger with Ross Bryan Associates (Nashville, TN), a structural design, restoration, investigation, and auditing firm. The merger strengthens Salas O’Brien’s structural engineering and building diagnostics expertise. [More information]
December 16 – Bluwatr (Toronto, Canada), a strategic growth platform for architecture and engineering firms, entered into a strategic partnership with LPAS Architecture + Design (Sacramento, CA) by acquiring a majority interest in the firm. The transaction supports LPAS’s long-term growth and platform expansion. [More information]
December 16 – Accenture (Dublin, Ireland), a global digital, cloud, and security services firm, signed an agreement to acquire a majority stake in DLB Associates (Neptune, NJ), an AI-focused data center engineering and consulting firm. The acquisition strengthens Accenture’s data center and digital infrastructure advisory capabilities. [More information]
December 16 – The Stonewall Group (Lafayette, LA) acquired ADG Architecture (Fort Myers, FL), an architecture and interior design firm serving commercial, educational, religious, and public-sector clients. The acquisition expands Stonewall’s architectural capabilities in Florida. [More information]
December 16 – Environ Energy (New York, NY), a provider of sustainable energy solutions, acquired Statistical Energy (Dublin, OH), an energy advisory firm specializing in data-driven procurement strategies and risk modeling. The acquisition enhances Environ Energy’s analytical and advisory services. [More information]
December 17 – Longenecker & Associates (Las Vegas, NV), a firm supporting U.S. Department of Energy missions, joined Geosyntec (Boca Raton, FL), a global environmental engineering and consulting firm. The transaction expands Geosyntec’s capabilities in energy and federal-sector programs. [More information]
December 17 – Lerch Bates (Englewood, CO), a technical consulting firm focused on the built environment, acquired StudioNYL (Denver, CO), a structural engineering and façade design firm. The acquisition strengthens Lerch Bates’ façade engineering and structural consulting services. [More information]
December 18 – Anfield Energy (Burnaby, Canada) signed a definitive stock purchase agreement with BRS (Riverton, WY), a uranium-focused engineering, mine development, construction management, and geology consulting firm. The transaction strengthens Anfield’s technical and project development capabilities in the nuclear sector. [More information]
December 19 – Phenna Group (Nottingham, UK), a family of businesses providing testing, inspection, certification, and compliance services, acquired 4fores (Zaragoza, Spain), a specialist in electrical optimization for industrial and renewable energy facilities. The acquisition expands Phenna’s energy optimization capabilities in Southern Europe. [More information]
December 22 – Sandbrook Capital (Stamford, CT) agreed to acquire United Utility Services (New Orleans, LA), a provider of outsourced electric grid infrastructure services to utilities, cooperatives, and municipalities. The transaction supports United Utility Services’ continued growth in grid services. [More information]
December 22 – Phenna Group (Nottingham, UK) completed its second transaction of the week with the acquisition of ITS Controlli Tecnici (Rome, Italy), an independent technical inspection and engineering services firm. The acquisition expands Phenna’s inspection and compliance platform in Italy. [More information]
December 23 – ZenaTech (Toronto, Canada), a technology firm specializing in AI drones, Drone as a Service, enterprise SaaS, and quantum computing solutions, acquired Vara 3D (Murray, UT), a surveying and 3D mapping firm. The acquisition expands ZenaTech’s 3D geospatial and mapping capabilities. [More information]
December 30 – ZenaTech (Toronto, Canada) acquired Holt Surveying & Mapping (Spokane, WA) and Andrew Spiewak Land Surveyor (Chicago, IL), expanding its land surveying and engineering services footprint across the U.S. [More information]
December 30 – W.E. Quicksall and Associates (New Philadelphia, OH), a civil engineering firm serving public-sector clients, joined Spicer Group (Saginaw, MI), an engineering, land surveying, and planning firm. The transaction expands Spicer Group’s presence in Ohio. [More information]