Clark Group, Suffolk Construction, Summit Contracting Group, Whiting-Turner Contracting, and McShane Companies top the ranking of the nation's largest multifamily housing sector contractors and construction management (CM) firms for 2023, as reported in Building Design+Construction's 2023 Giants 400 Report. Note: This ranking factors revenue for all multifamily buildings work, including apartments, condominiums, student housing facilities, and senior living facilities.