| Abbreviation | Definition |
|---|---|
| BRI | Bulge Research Institute |
| BRI | Burzynski Research Institute |
| BRIMM | Bradshaw Research Institute for Minerals and Mining |
| BRIT | Barrier Reef Institute of TAFE |
| BRITE | Biomanufacturing Research Institute and Technology Enterprise |
| BRITE | Blue Ridge Institute for Theological Education |
| BRITT | Burt Reynolds Institute for Theatre Training |
| BRLI | Bangor Region Leadership Institute |
| BRLI | Bangor Regional Leadership Institute |
| BRLI | Borderlands Restoration Leadership Institute |
| BRRI | Bangladesh Rice Research Institute |
| BRRI | Beijing Radio Research Institute |
| BRRI | Belize Raptor Research Institute |
| BRRI | British Rural Research Institute |
| BRRI | Building and Road Research Institute |
| BRRI | Buildings and Roads Research Institute |
| BSFI | BSP Supervised Financial Institution |
| BSI | Biomolecular Sciences Institute |
| BSI | Brand Safety Institute |
| BSI | Bridge Software Institute |