Featured transaction in IL; plus two deals in the Southeast 

Commentary & Insight

Deal activity stayed strong this week, with 11 new domestic and global transactions, including a featured deal in Illinois and continued consolidation in the Southeast with two transactions in South Carolina and Florida. 

Want to stay ahead of the forces driving this activity? Join industry leaders at the 12th annual Southeast M&A and Business Symposium at the beautiful Ritz-Carlton, South Beach in Miami, Florida. Register today to secure your spot.

Domestic Transactions

2/11/2026 
ENR’s #159 ranked environmental firm, ALL4 (Kimberton, PA), an environmental, health, safety, sustainability, and digital solutions firm, acquired environmental and engineering consulting firm Tora Consulting (Columbia, SC). Link to details >

2/11/2026 
CSA Ocean Sciences (Stuart, FL), an environmental firm that supports energy transition and coastal infrastructure projects, joined environmental and geospatial services firm APEM Group (Stockport, UK). Link to details >

2/10/2026 
Engineering, architecture, and consulting firm Stratus Team (Coraopolis, PA) (ENR #214) acquired Kestrel Engineering Group (Vancouver, WA), an industrial process facilities engineering and design firm. Link to details >

2/10/2026 
ENR’s #155 ranked environmental firm, Integral Consulting (Boulder, CO), an environmental, scientific, and engineering firm, acquired ecological consulting firm H. T. Harvey & Associates (Los Gatos, CA). Link to details >

2/11/2026 
Planning firm Raimi + Associates (Berkeley, CA) joined Alta Planning + Design (Portland, OR) (ENR #446), a firm that offers planning, landscape architecture and urban design, engineering, education and encouragement programs, and community engagement. Link to details >

2/11/2026 
Azuria Water Solutions (St. Louis, MO), a firm that provides technology-enabled solutions for the water industry, acquired Caliagua (Anaheim, CA), a firm with experience in constructing, rehabilitating, and modernizing water and wastewater systems. Link to details >

2/5/2026 
Keller (Kaukauna, WI), a 100% employee-owned design-build general contractor, acquired Hoffman Planning, Design & Construction (Appleton, WI), a design and construction management firm. Link to details >

Global Transactions

2/9/2026 
Global environmental and advisory consultancy SLR (Aylesbury, UK) acquired SB&CO (London, UK), a firm specialized in sustainability strategy, technical advisory, and sustainability communications. Link to details >

2/10/2026 
In its second deal of the week, SLR (Aylesbury, UK) acquired Avaanz (Guelph, Canada), a firm that offers environmental and socio-economic consulting within the energy and mining sectors. Link to details >

2/11/2026 
XPartners (Stockholm, Sweden), a platform of companies in the environmental and civil engineering industries, acquired Wi Landskap AB (Stockholm, Sweden), a landscape architecture firm with expertise in cultural heritage environments. Link to details >