42nd Street Moon is a professional theatre company in San Francisco, California. The company specializes in the preservation and presentation of early and lesser-known works by Rodgers & Hammerstein, Rodgers & Hart, Cole Porter, Irving Berlin, Kurt Weill, George and Ira Gershwin, Jerome Kern, Jerry Bock, Sheldon Harnick, Kander and Ebb, Jule Styne and Comden and Green. In recent years, the company has branched out to include more contemporary works that continue the spirit of the classic American Musical.