| Abbreviation | Definition |
|---|---|
| FSAI | Fire Safety Association of India |
| FSAI | First Service Administrators, Inc. |
| FSAI | Florida Student Association, Inc |
| FSAI | Full Speed Ahead Integrators |
| FSAJ | Financial Services Authority of Japan |
| FSAJ | Floating Structures Association of Japan |
| FSAK | Fabrika Akumulatora Sombor a.d. |
| FSAM | First Southwest Asset Management |
| FSAM | Franklin Sussex Auto Mall |
| FSAO | Ford South America Operations |
| FSAR | Foothills Search And Rescue |
| FSAT | Family Sexual Abuse Treatment, Inc. |
| FSAV | Fain, Sheldon, Anderson, & VanDerhoef, P.L.L.C. law firm |
| FSAZ | Financial Services Arizona |
| FSB | Federalnaia Sluzhba Bezopasnosti |
| FSB | Franz Schneider Brakel |
| FSB | Free Software Business |
| FSC | Filing Services Canada |
| FSC | Fitzgerald Siding Company, Grand Blanc, Michigan |
| FSC | Five Star Construction |