| Abbreviation | Definition |
|---|---|
| BSCF | Bend Surgery Center Foundation |
| BSCF | Building Safety Competence Foundation |
| BSCF | Building Safety Competency Foundation |
| BSEF | Ballston Spa Education Foundation |
| BSEF | Bellbrook Sugarcreek Education Foundation |
| BSEF | Birmingham Sports and Education Foundation |
| BSF | Barth Syndrome Foundation |
| BSF | Bellevue Schools Foundation |
| BSF | Binational Science Foundation |
| BSF | Bridger Ski Foundation |
| BSFB | Bendix Spicer Foundation Brake |
| BSMHFT | Birmingham Solihull Mental Health Foundation Trust |
| BSOF | Barr Sam Otoboeze Foundation |
| BSOF | Barrister Sam Otoboeze Foundation |
| BSRF | British Scoliosis Research Foundation |
| BTCF | Berkeley Tennis Club Foundation |
| BTCF | Berkshire Taconic Community Foundation |
| BTCF | Buddhist Tzu Chi Foundation |
| BTF | Brain Trauma Foundation |
| BTFF | Bai Tushum Financial Foundation |