Swinerton Builders, a subsidiary of Swinerton, provides a ton of services related to commercial and sustainable construction and renovation, primarily in the western US. The company's interiors group offers interior tenant finishes and remodeling, working on such projects as high-tech and lab renovations, hospitals, retail facilities, and seismic upgrades. Its building group focuses on new construction and retrofitting. Projects include the San Francisco Museum of Modern Art, a Lockheed Martin launch vehicle assembly plant in Colorado, and the Bay Bridge toll operations building in San Francisco. Swinerton Builders operates from offices in California, Colorado, Hawaii, Texas, New Mexico, and Washington.