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.
November 1 – HFA (Bentonville, AR), an architecture and engineering firm, acquired TRIA Architects (Boston, MA), an architecture firm known for its expertise in life sciences and laboratory design. The acquisition expands HFA’s capabilities in advanced research and technical environments. [More information]
November 2 – Apex Companies (Rockville, MD), an environmental consulting and engineering firm, acquired Forsgren Associates (Salt Lake City, UT), a multidisciplinary civil engineering, environmental sciences, and land surveying firm. The acquisition expands Apex’s Western U.S. presence and service depth. [More information]
November 3 – Corgan (Dallas, TX), a global architecture and design firm, acquired Cooper Robertson (New York, NY), an architecture and urban design firm known for cultural and educational buildings, waterfront resiliency work, urban redevelopment, and high-end residential and hospitality projects. The acquisition strengthens Corgan’s urban design and cultural portfolio. [More information]
November 3 – Colliers International, through its subsidiary Colliers Engineering & Design Australia (Adelaide, Australia), acquired Greenhill Engineers (Dulwich, Australia), an urban development firm. The acquisition expands Colliers’ land development and infrastructure capabilities in Australia. [More information]
November 3 – Adler & Allan (Harrogate, UK), an environmental services firm, acquired Thomson Environmental Consultants (Guildford, UK) and Atmos Consulting (Edinburgh, UK), expanding its ecological, environmental permitting, and natural resources capabilities across the UK. [More information]
November 3 – Interstate Engineering (Jamestown, ND), a civil engineering, surveying, and planning firm, acquired TerraSite Design (Rapid City, SD), a civil engineering, landscape architecture, and planning firm. The acquisition expands Interstate Engineering’s multidisciplinary services across the Northern Plains. [More information]
November 3 – Aecon Group (Toronto, Canada), through its subsidiary Aecon Utilities (Toronto, Canada), entered into a definitive share purchase agreement to acquire KPC (Ajax, Canada), a group of companies providing high-voltage testing, commissioning, and energy metering solutions. The acquisition strengthens Aecon’s utility infrastructure capabilities. [More information]
November 4 – CBRE (Dallas, TX), a global commercial real estate services and investment firm, acquired Pearce Services (Paso Robles, CA), a provider of advanced technical services for digital and power infrastructure. The acquisition expands CBRE’s infrastructure and field services capabilities. [More information]
November 4 – DNV (Oslo, Norway) strengthened its power grids expertise in Asia Pacific with the acquisition of Amplitude Consultants (Brisbane, Australia), an engineering advisory firm providing transmission and distribution power grid services. The deal expands DNV’s grid modernization capabilities in the region. [More information]
November 4 – Gould Singleton Architects (Halesowen, UK), an architecture firm serving commercial, community, education, healthcare, residential, and retail markets, received a strategic investment from Bracewell (Stirling, UK). The investment supports Gould Singleton’s growth and design expansion. [More information]
November 5 – Spheros Environmental (Denver, CO), an environmental consulting and geoscience firm, acquired Ironwood Consulting (Redlands, CA), a firm specializing in biological resources, habitat mitigation and monitoring, environmental permitting, and data-driven field services. The acquisition broadens Spheros’s ecological and regulatory expertise. [More information]
November 5 – VCA Consultants (Orange, CA) acquired Green Econome (Los Angeles, CA), a sustainability consulting firm recognized for lifecycle strategies, building performance reporting, and efficiency consulting. The acquisition strengthens VCA’s sustainability and performance services. [More information]
November 5 – Norconsult (Sandvika, Norway), a multidisciplinary engineering and design firm, entered into a definitive agreement to acquire Metier Group (Oslo, Norway), a project management firm. The acquisition enhances Norconsult’s program and project delivery capabilities. [More information]
November 5 – Nippon Koei Energy Solutions (Tokyo, Japan) expanded its presence in Asia through the acquisition of shares in Tractebel Engineering Thailand and PT Tractebel Engineering Indonesia, strengthening its regional energy engineering capabilities. [More information]
November 6 – SLR (Aylesbury, UK), a global environmental and advisory consultancy, acquired Fuse Advisors (Vancouver, Canada), a mining advisory and management consulting firm. The acquisition expands SLR’s mining and minerals expertise in North America. [More information]
November 7 – NMS Consulting (Beverly Hills, CA), in partnership with NMS Capital Group, spun off its Technical Services Consulting division to form Saliba Group (Beverly Hills, CA), a dedicated program and construction management firm. The new entity focuses on project delivery and capital program oversight. [More information]
November 10 – AtkinsRéalis (Montreal, Canada), an engineering services and nuclear firm, acquired C2AE (Lansing, MI), an architecture and engineering firm offering civil, structural, mechanical, and electrical services. The acquisition expands AtkinsRéalis’ U.S. architecture and engineering capacity. [More information]
November 10 – Schaub Projects (St. Louis, MO), an architectural firm specializing in custom residential design, acquired Metheny Architects (Kirkwood, MO), an architecture firm focused on residential work. The acquisition strengthens Schaub Projects’ residential design portfolio. [More information]
November 10 – CIMA+ (Laval, Canada), an infrastructure, transportation, energy, and project management firm, acquired Lakeland Consulting (Oakville, Canada), a commercial management services firm. The acquisition enhances CIMA+’s commercial project advisory capabilities. [More information]
November 10 – Envance (Stockport, UK), an environmental and sustainability consulting firm, joined Celnor Group (London, UK), a group of companies offering testing, inspection, certification, and compliance services. The transaction expands Celnor’s environmental and sustainability expertise. [More information]
November 11 – BW Design Group (St. Louis, MO), an architecture, engineering, and construction firm, acquired Malisko Engineering (St. Louis, MO), a specialist in process controls, automation, industrial networking, cybersecurity, and manufacturing system integration. The acquisition strengthens BW Design Group’s industrial technology capabilities. [More information]
November 12 – SitelogIQ (Minneapolis, MN), an energy services and facility improvement solutions firm, acquired the lighting design backlog and team from Sparkfund (Denver, CO), expanding its lighting and energy efficiency delivery capabilities. [More information]
November 12 – Celnor Group (London, UK) completed its second deal of the week by merging with Primary Water Solutions (Woodford, UK), a firm specializing in water and air hygiene and the management of waterborne pathogen risks. The merger expands Celnor’s building safety and compliance services. [More information]
November 12 – RSK Group (Helsby, UK), an environmental consulting and services firm, acquired the strategy, economic, and policy services arm of RSM UK (London, UK) and merged it with ERS (Newcastle upon Tyne, UK), an economic research consultancy. The combined entity will be rebranded as Fortia Insight, strengthening RSK’s policy and economic advisory capabilities. [More information]
November 12 – Environmental Protection Group (EPG) (Derby, UK), a geoenvironmental engineering firm, acquired Hafren Water (Shrewsbury, UK), an environmental firm specializing in hydrology and hydrogeology. The acquisition enhances EPG’s water sciences and environmental assessment capabilities. [More information]