International buyers complete deals in IA and NH; additional transactions in CT and FL highlight this week’s M&A activity

Commentary & Insight

While still up over the past 12 months, deal-making has slowed in the past 90 days. To find out why, and gain insights into the latest industry trends and best practices, join over 200 AE industry executives and investors at the 11th Annual Western States M&A and Business Symposium at the five-star Wynn Hotel in Las Vegas this June. Early bird registration is now open!

Domestic Transactions

3/19/2025
LRQA (London, UK), a firm with expertise in assessment, advisory, inspection and cybersecurity services, acquired EcoEngineers (Des Moines, IA), a consulting, auditing, and advisory firm with an exclusive focus on energy transition. Link to details >

3/14/2025
Celnor Group (London, UK) expanded internationally with the acquisition of John Turner Consulting (Portsmouth, NH), a geotechnical testing and engineering, materials sampling and analysis, environmental consulting, building sciences, energy consultants, construction engineering, and inspection services firm. Link to details >

3/20/2025
ENR’s #70 ranked environmental firm and recipient of the 2024 M&A Best Practices Award, Trinity Consultants (Dallas, TX), acquired Jaffe Holden (Norwalk, CT), a firm that offers acoustic design and audio-visual services focused on performing arts, educational, and cultural spaces. Link to details >

3/18/2025
Architecture and engineering firm CPH Consulting (Sanford, FL) acquired Mittauer & Associates (Orange Park, FL), an engineering firm specializing in water, wastewater, civil, structural engineering, and grant funding. Link to details >

Global Transactions

3/20/2025
ENR’s #3 ranked global design firm, Arcadis (Amsterdam, The Netherlands), acquired WSP Infrastructure Engineering GmbH (Frankfurt, Germany), an engineering firm specialized in rail infrastructure, signaling, structural engineering, and software development. Link to details >

3/19/2025
Caisse de dépôt et placement du Québec (CDPQ) (Montreal, Canada) entered into a partnership with Norda Stelo (Québec, Canada), a firm with experience in transportation infrastructures, as well as diverse industries such as mining and metals, energy, and manufacturing and processing. Link to details >

3/19/2025
Architecture firm Rørbæk og Møller Arkitekter (Copenhagen, Denmark) joined design firm Schmidt Hammer Lassen (Aarhus, Denmark). The merger will become one of the strongest architectural firms in Scandinavia, especially within preservation and transformation. Link to details >