SmithGroup
 | |
| Industry | Architecture |
|---|---|
| Founded | 1853 |
| Founder | Sheldon Smith |
| Revenue | 354,000,000 United States dollar (2023)  |
Number of employees | 1,500 (2024) |
| Website | www |
SmithGroup is an international architectural, engineering and planning firm. Established in 1853 by architect Sheldon Smith, SmithGroup is the longest continually operating architecture and engineering firm in the United States that is not a wholly owned subsidiary. As of 2025, SmithGroup ranks #7 among the top 100 architecture engineering firms according to Building Design + Construction, with offices in 21 cities around the United States. The firm serves a range of clients, including cities, commercial, higher education, healthcare, science & technology, and cultural markets.