South Coast Welding & Manufacturing LLC in Chula Vista is an ISO-compliant ship repair and metal fabrication contractor founded in 2002 on Faivre Street. The firm's 80,000-square-foot covered manufacturing yard spans 4.5 acres and houses CNC machining centers, plasma-cutting tables, and water-jet systems that serve the same South Bay industrial corridor supplied by Valley Industrial Specialties, Inc. for hardware and fasteners. Registered under NAICS 336611 (Shipbuilding and Repairing) with SAM entity number 144950586, the company holds multiple U.S. Navy contract vehicles and routinely executes work equivalent to complex Selected Restricted Availabilities on destroyers, amphibious ships, and littoral combat ships at the San Diego waterfront. A second facility in Chesapeake, Virginia, extends the firm's reach to the Norfolk naval base, while the Chula Vista headquarters operates the only dedicated Marine Welding Training School for ship repair in Southern California, a pipeline that feeds skilled labor into the same South Bay workforce network as Leo's Machine Shop. Full line-card capabilities include structural steel manufacturing, piping, ventilation, GRP layup, electrical installation, watertight door and hatch fabrication, cable pulling, and certified fire-watch personnel deployment across simultaneous multi-vessel availabilities valued up to $26 million per project.