Headquartered in Herndon, Virginia, TRINITY Group Construction, Inc. is an award-winning construction company specializing in office, medical, flex/industrial, financial institutions, mission critical, commercial interiors, fitness facilities, restaurants, renovations, and retail. Ranked as one of the top commercial general contractors in the Washington, DC metropolitan area, we offer our clients a broad range of services, giving them the convenience of using one contractor for multiple needs. Our complete service package includes pre-construction, general contracting, design-build, construction management, and service & emergency work.