Fluor, Hensel Phelps, Turner & Townsend, McCarthy Holdings, HITT Contracting, Clark Group, Caddell Construction, and BL Harbert International top Building Design+Construction's ranking of the nation's largest federal government building general contractors and construction management firms for 2026, as reported in BD+C's 2026 Giants 400 Report.

Source: Building Design+Construction's 2026 Giants 400 Report