| 1 | SFA | Aerotransportes Entre Rios Srl | Callsign: Aersa, Designator RS recalled by IATA | RA | AVCODES |
| 2 | SFA | Cirus Aero | Callsign: Sfera, | MD | AVCODES |
| 3 | SFA | Aerotransportes Entre Rios Srl | IATA: RS, Callsign: Aersa, Designator RS recalled by IATA | RA | AVCODES |
| 4 | SFA | Sefa | Callsign: Sefa, Name changed to ENAC. | F | AVCODES |
| 5 | SFA | ENAC | Callsign: Sefa, ICAO designator changed to NAK. Name changed from Sefa | F | AVCODES |
| 6 | SFA | SEFA | | | ICAO1 |
| 7 | SFA | SOUTHERN FREIGHT ASSOCIATION - TCAM ID | | | PWRC |
| 8 | SFAB | SILVER FOX TRANSPORTATION | | | SCAC4 |
| 9 | SFAD | S F ADVANCE TRANSPORTATION SERVICES | | | SCAC4 |
| 10 | SFAF | SHORT FUSE TRUCKING INC | | | SCAC4 |
| 11 | SFAI | Società per le strade ferrate dell'Alta Italia | 1865 - 1885 | I | TRAFFIC |
| 12 | SFAL | SF&L Ry., Inc. | 1/1994-7/2005 | | NAKINA |
| 13 | SFAL | SF&L Ry., Inc. | 1/94-7/2000 | | NRHS |
| 14 | SFAL | SF&L RAILWAY, INC. | | | PWRC |
| 15 | SFAL | SF and L Railway | | | RSRV |
| 16 | SFAL | SF&L RAILWAY INC | | | SCAC4 |
| 17 | SFAO | SHAN FREIGHTWAY | | | SCAC4 |
| 18 | SFAP | SELF, AMANDA HORSE TRAINING | | | SCAC4 |
| 19 | SFAP | SF Airporter | | US-CA | TRAFFIC |
| 20 | SFAQ | SF BOOT BRUSH ENTERPRISES | | | SCAC4 |
| 21 | SFAT | ST CANUT FARMS | | | SCAC4 |
| 22 | SFAU | SCANDINAVIAN FERRY TRAILERS*AS | | | SCAC4 |
| 23 | SFAW | S F SYSTEMS LTD | | | SCAC4 |
| 24 | SFAY | SAFEWAY TRANSPORTATION | | | SCAC4 |
| 25 | SFAZ | SUN FLOWER ARMY AMMUNITION PLANTS | | | PWRC |
