Marine Group Boat Works, LLC (MGBW) is a family-owned, full-service boat construction and superyacht refit facility occupying over 15 acres of land and water, located in Chula Vista, San Diego Bay, specializing in refits, repairs, and new construction of boats up to 220 feet, including haul-outs, bottom paints, surveys, hull extensions, engine repowers, and services for commercial and government vessels.