Founded in 1990 on South Florida’s Treasure Coast, Custom Built Marne Construction (CBMC), has been family-owned and operated since day one. Our crew members and project management staff have vast experience in all types of marine construction work, including docks, seawall, bridges, marinas, boat ramps, boardwalks, shoreline embankment and much more. CMBC carries both a Heavy Marine Contractors License and a General Contractors License, and is certified by the Florida Department of Transportation (FDOT), Florida Department of Environmental Protection (FDEP), and South Florida Water Management District (SFWMD).