Top 100 Office Core and Shell Construction Firms for 2025

Turner Construction, AECOM, Clark Group, STO Building Group, PCL Construction Enterprises, Balfour Beatty US, JLL, DPR Construction, and Gilbane Building Company top Building Design+Construction's ranking of the nation's largest office core and shell general contractors and construction management firms for 2025, as reported in BD+C's 2025 Giants 400 Report.

Source: Building Design+Construction's 2025 Giants 400 Report