Swinerton, Rogers-O'Brien Construction, Mortenson, Kitchell, Ryan Companies US, Level 10 Construction, Skanska USA, Warfel Construction, and Robins & Morton top Building Design+Construction's ranking of the nation's largest medical office 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