Featured deals in TN and CA headline busy week for global M&A

Commentary & Insight

Industry consolidation remained active this week with 16 announced deals worldwide, including another in Texas. Stay ahead of the trends shaping the market and join 200+ executives, investors, and experts this October in Houston at the Texas and the South M&A and Business Symposium. Reserve your place and register today.  

Domestic Transactions

9/3/2025 
Environ Energy (New York, NY), a firm that offers sustainable energy solutions, acquired CSD Energy Advisors (Houston, TX), an energy management and advisory firm that specializes in energy procurement, demand response, and energy storage. Link to details >

9/4/2025 
Abramson Architects (Los Angeles, CA), an architecture firm with experience in commercial, cultural, healthcare, and residential work, joined interdisciplinary, research-based architecture and design firm Perkins&Will (Chicago, IL) (ENR #35). Link to details >

9/1/2025 
Innovative geoscience, engineering, and technology firm RESPEC (Rapid City, SD) acquired Albertson Engineering (Rapid City, SD), a structural firm with experience in civic buildings, public art, commercial spaces, and industrial facilities. Link to details >

9/3/2025 
Civil engineering, environmental, and surveying firm Pape-Dawson Engineers (San Antonio, TX) (ENR #69) expanded in Florida with the acquisition of Bonnett Design Group (Maitland, FL), a firm specializing in landscape architecture and planning. Link to details >

9/2/2025 
SI Solutions (Huntersville, NC), a platform of companies serving the power generation, utility infrastructure, chemical, refining, and critical structures sectors, acquired Integrity Specialists (Annandale, MN), a firm that offers advanced non-destructive examination (NDE) and inspection for the natural gas pipeline industry. Link to details >

Global Transactions

8/29/2025 
Wood Group (Aberdeen, UK) agreed to a $292-million acquisition by ENR’s #21 ranked global design firm, Sidara (Dubai, UAE), formerly known as Dar Group. Link to details >

8/29/2025 
In its second deal of the week, Qualus (Orlando, FL) entered into a definitive agreement to acquire the North American Transmission and Distribution engineering business (Calgary, Canada) of Wood Group (Aberdeen, UK). Link to details >

9/1/2025 
Intertek (London, UK), an assurance, testing, inspection, and certification services firm, acquired Envirolab Services (Sydney, Australia), an environmental testing and analysis services firm serving the government, industrial, infrastructure, natural resources, energy, and construction sectors. Link to details >

8/27/2025 
Environmental firm Adler & Allan (Harrogate, UK) acquired Ecosupport (Lee-on-the-Solent, UK), a firm that provides ecological surveys, impact assessments, and biodiversity advice to the UK planning and development sectors. Link to details >

9/1/2025 
Engineering consultancy Rejlers (Stockholm, Sweden) acquired 51 percent of management consulting firm Spring Advisor (Helsinki, Finland), further enhancing its capabilities within strategic advisory services. Link to details >

8/28/2025 
Transdisciplinary design firm Lemay (Montreal, Canada) joined forces with architecture and design practice CEBRA (Aarhus, Denmark). Link to details >

9/3/2025 
Private equity manager Foresight Group (London, UK) made an investment into Graham + Sibbald (Dundee, UK), a chartered surveying and property consulting firm. Link to details >

9/3/2025 
Following the investment by Foresight Group, Graham + Sibbald (Dundee, UK) continued its expansion plans with the acquisition of property consulting firm Aitchison Raffety (London, UK). Link to details >

9/3/2025 
Engineering firm BPA (Montreal, Canada) entered into a strategic merger with M+B Electrical Consulting Engineers (Mulvey and Banani) (Calgary, Canada), a full-service electrical engineering firm. Link to details >