Helfensteller, Hirsch & Watson
| Company type | Private |
|---|---|
| Industry | Architecture |
| Predecessor | Hirsch & Helfensteller |
| Founded | 1907 |
| Founder | Ernest Helfensteller William Albert Hirsch Jesse N. Watson |
| Fate | 1940 |
| Headquarters | , |
Area served | United States |
Key people | Ernest Helfensteller William Albert Hirsch Jesse N. Watson |
| Services | Architecture |
Helfensteller, Hirsch & Watson was an early twentieth-century American architectural firm from St. Louis, Missouri. It succeeded Hirsch and Helfensteller which had been founded in 1903. The firm's partners included Ernest Helfensteller, William Albert Hirsch and Jesse N. Watson. The firm quickly gained prominence with its 1912 design of the Moolah Temple in St. Louis.