| 1 | SFX | S.K. Logistics, Inc. | Callsign: Swamp Fox, Name changed to South Carolina Aviation Management, LLC. | USA | AVCODES |
| 2 | SFX | South Carolina Aviation Management, LLC. | Callsign: Swamp Fox, Name changed from S.K. Logistics, Inc. | USA | AVCODES |
| 3 | SFX | S.K. Logistics | | | ICAO1 |
| 4 | SFX | Southern Fertilizer & Chemical Co. | 7/1923-4/1938 | | NAKINA |
| 5 | SFX | Stokely Foods, Inc. | 1/1945-1/1952; eliminated 7/1953 | | NAKINA |
| 6 | SFX | Southern Fertilizer & Chemical Co. | Apr-38 | | NRHS |
| 7 | SFX | Stokely Foods, Inc. | Jan-52 | | NRHS |
| 8 | SFX | *SOUTHERN FERTILIZER & CHEMICAL CO. | | | PWRC |
| 9 | SFX | *STOKLEY FOODS, INC. | | | PWRC |
| 10 | SFXA | SAFE TRANSPORTATION | | | SCAC4 |
| 11 | SFXB | SCHAEFER TRANSPORT LLC | | | SCAC4 |
| 12 | SFXC | SFAX CARRIERS INC | | | SCAC4 |
| 13 | SFXD | SAFE ON ROAD XPRESS LTD | | | SCAC4 |
| 14 | SFXE | SILVER FOX EXPRESS | | | SCAC4 |
| 15 | SFXG | SUMMIT FIBERGLASS INC | | | SCAC4 |
| 16 | SFXI | SWIFT EXPRESS INC | | | SCAC4 |
| 17 | SFXK | SW FLORIDA TRANSPORTER INC | | | SCAC4 |
| 18 | SFXL | STEADFAST TRANSPORT LLC | | | SCAC4 |
| 19 | SFXM | SAFE TRANSPORT | | | SCAC4 |
| 20 | SFXO | SAFE TRANSPORT LLC | | | SCAC4 |
| 21 | SFXP | SFE INC | | | SCAC4 |
| 22 | SFXQ | SCHAFER TRANSPORT LLC | | | SCAC4 |
| 23 | SFXR | SHOFAR TRANSPORTATION INC | | | SCAC4 |
| 24 | SFXS | SEAFOOD EXPRESS (P E I) LIMITED | | | SCAC4 |
| 25 | SFXT | SAFE TRANSPORT LLC | | | SCAC4 |
| 26 | SFXV | SFS TRANSPORT LLC | | | SCAC4 |
| 27 | SFXW | SUPERIOR FREIGHT TRANSPORT INC | | | SCAC4 |
