USAI
| Acronym | Definition |
|---|---|
| USAI | United States Army Intelligence |
| USAI | United Systems Access, Inc. (Kennebunk, ME) |
| USAI | United Services Advisors Inc. (San Antonio, TX) |
| USAI | Urban Science Applications, Inc. (Detroit, MI) |
| USAI | United States Association of Immigrants |
| USAI | United Senior Action of Indiana, Inc. (Indianapolis, IN) |