USS CAL Builders in downtown San Diego, founded in 1984, operates as an international general contracting and construction management firm from West Broadway with over 300 employees and more than $1 billion in completed public and private projects. The project scope spans new construction, modernization, design-build, infrastructure, and seismic retrofits for commercial, industrial, and government clients at the federal, state, and local levels—work that requires architectural coordination with firms such as Carrier Johnson + Culture in the Gaslamp Quarter. Seismic retrofit projects reinforce existing structures to meet current California Building Code lateral-force requirements, a scope that is critical for older unreinforced masonry buildings in the downtown core. Infrastructure work covers road construction, civil engineering, and concrete placement, with plumbing and mechanical subcontract packages feeding through trade partners such as Pros Plumbing San Diego Services. The most complex projects are multi-year, publicly funded institutional builds—coordinating prevailing-wage labor, phased occupancy, and regulatory compliance across federal and state procurement frameworks.