| Acronym | Definition |
|---|
| BASI➣Bureau of Air Safety Investigation (Australia) |
| BASI➣Basic Achievement Skills Inventory (achievement test; Pearson Education, Inc.) |
| BASI➣British Association of Ski Instructors |
| BASI➣Buoyant Aircraft Systems International (Canada) |
| BASI➣Business and Social Initiatives (database) |
| BASI➣Body Arts and Sciences International (est. 1989) |
| BASI➣Business Advisory Services Inc. (Parramatta, Australia) |