Featured deals in TX and FL highlight continued Sun Belt consolidation 

Commentary & Insight

This week’s activity continued to highlight strong consolidation trends across the Sun Belt, with multiple transactions announced in TX, FL, NC, and LA. Buyers remained active across infrastructure, buildings, and environmental markets, with continued demand for capabilities across faster-growing regions of the country. Additional domestic transactions were announced in UT, OH, and CA, while international activity included four deals across Australia and the UK. 

Domestic Transactions

5/15/2026 
ENR’s #10 ranked CM/PM-for-fee firm, Cumming Group (New York, NY), acquired RGD Project Management (Cary, NC), a PM firm that specializes in pharmaceuticals and life sciences projects. Link to details >

5/15/2026 
Civil engineering and surveying firm Graham Associates (Fort Worth, TX) joined multidisciplinary architecture and engineering design firm Parkhill (Lubbock, TX) (ENR #167). Link to details >

5/18/2026 
ENR’s #166 ranked environmental firm, Aventia (Lakewood, CO), a platform of companies that provides environmental services, acquired ECM Consultants (Metairie, LA), an engineering, architecture, and CM firm specializing in infrastructure and resilience projects. Link to details >

5/18/2026 
Phenna Group (Nottingham, UK), a family of businesses providing testing, inspection, certification, and compliance (TICC) services, acquired RMEC Environmental (Bountiful, UT), a firm that offers environmental and occupational health and safety services. Link to details >

5/19/2026 
Engineering, architecture, and consulting firm Stratus Team (Coraopolis, PA) (ENR #126) acquired Page Interworks (North Wilkesboro, NC), an MEP and fire protection engineering firm. Link to details >

5/20/2026 
ADF Engineering (Miamisburg, OH), a multidisciplinary engineering firm specialized in process and facility engineering, entered a strategic partnership with Heartland Growth Partners (Columbus, OH). Link to details >

5/20/2026 
TDM Specialists (San Francisco, CA), a transportation demand management (TDM) services firm, joined Galloway & Company (Greenwood Village, CO) (ENR #288), a national multidisciplinary architecture and engineering firm. Link to details >

Global Transactions

5/5/2026 
Sellick Consultants (Braddon, Australia), a structural, civil, and hydraulic engineering firm, entered into an agreement to acquire parts of Indesco (Canberra, Australia), a civil, structural, façade, and traffic engineering firm. Link to details >

5/13/2026 
Mott MacDonald (Croydon, UK) (ENR #42), a global engineering, management, and development consulting firm, acquired Leed Engineering & Construction (Kent Town, Australia), a multi-disciplinary engineering and construction firm specializing in complex infrastructure projects. Link to details >

5/14/2026 
Petrie Buchanan (Glasgow, UK), a specialist in utilities infrastructure, joined Wallace Whittle (Glasgow, UK), an ESG, sustainability, and MEP engineering firm. Link to details >

5/19/2026 
Renew Holdings (Leeds, UK), an engineering firm focused on critical infrastructure, through its wholly owned subsidiary Excalon Holdings (Leeds, UK), acquired electrical and civil engineering Electricity Distribution Engineering Services (Worsley, UK). Link to details >