| Abbreviation | Definition |
|---|---|
| FSG | Facilities Solutions Group |
| FSG | Facility Solutions Group |
| FSG | Free Standards Group |
| FSGB | Facilicom Services Group Belgium |
| FSGI | Facility Solutions Group Inc |
| FSGI | Federal Solutions Group Inc |
| FSGI | Financial Servies Group Inc |
| FSGI | First Security Group Inc |
| FSH | Figure Skating in Harlem |
| FSH | Fort Sam Houston |
| FSH | Frentz Son's Hardware |
| FSH | Frentz & Son's Hardware |
| FSI | Facility Services Inc |
| FSI | Falmouth Scientific Inc |
| FSI | Farm Shop Inc |
| FSI | Filter Specialists Inc |
| FSI | Financial Services Inc |
| FSI | Flanders Scientific Inc |
| FSI | Flight Service International |
| FSI | Foam Supplies Inc |