DLR Group Acquires Collins Cooper Carusi Architects

Corgan Acquires WCGS Architects

August 3, 2026

Professional Services

Corgan, an employee-owned architecture and design firm, acquired WCGS Architects, an Albany, New York-based architecture practice. The acquisition strengthens Corgan’s Northeast presence and expands its mission-critical and higher education capabilities.

DLR Group Acquires McFarlane Architects

August 3, 2026

Professional Services

DLR Group, an integrated design firm, announced that San Diego-based science and technology design firm McFarlane Architects has joined the DLR Group organization. The acquisition strengthens DLR Group’s science and technology practice and expands its presence and client access in one of the country’s largest life science hubs.

Corgan Acquires Cooper Robertson

November 3, 2025

Professional Services

Dallas-based architecture and design firm Corgan has acquired New York–based Cooper Robertson. Terms were not disclosed; Cooper Robertson’s team and client relationships will integrate into Corgan to deepen its presence in the Northeast and expand capabilities across higher education, civic, and cultural design markets.

SLR Consulting Acquires A. DiCesare Associates, P.C.

October 8, 2025

Engineering Services

SLR Consulting has acquired A. DiCesare Associates, P.C. (ADA), a Connecticut-based engineering firm specializing in highway and railroad bridge inspection, bridge design and underwater inspection services. The deal strengthens SLR’s transportation engineering and inspection capabilities and deepens its client relationships with state transportation agencies and rail clients across the U.S. Northeast.

Little Diversified Architectural Consulting Acquires Hughes Group Architects

May 23, 2023

Professional Services

Little Diversified Architectural Consulting has acquired Hughes Group Architects, a Sterling, Virginia-based architecture firm. The deal expands Little’s design capabilities in public safety, higher education, K‑12 and recreation facilities while strengthening its presence in the greater Washington, D.C. market.

DCCM Acquires Coastland Civil Engineering

December 3, 2021

Engineering Services

DCCM, a national design and construction management firm based in Houston, has acquired Coastland Civil Engineering, a Santa Rosa-based civil engineering and construction management firm. The acquisition expands DCCM's presence on the U.S. West Coast and brings Coastland's public-agency-focused capabilities into DCCM's national platform, with Coastland CEO John Wanger remaining in place.