| 1 | SSF | Severstal Joint Stock Company | IATA: D2, Name changed to Severstal Aircompany Ltd. | RUS | AVCODES |
| 2 | SSF | Severstal Aircompany Ltd. | IATA: D2, Callsign: Severstal, Name changed from Severstal Joint Stock Company | RUS | AVCODES |
| 3 | SSF | Severstal | | | ICAO1 |
| 4 | SSF | Städtische Straßenbahn Feuerbach | City: Feuerbach | D | TRAFFIC |
| 5 | SSFA | SIGNET MARITIME CORPORATION | | | SCAC4 |
| 6 | SSFC | SOMERSET FUEL TRANSPORT INC | | | SCAC4 |
| 7 | SSFG | S & S FREIGHT SERVICE INC | | | SCAC4 |
| 8 | SSFH | SPECIAL SERVICE FREIGHT CO OF THE C | | | SCAC4 |
| 9 | SSFJ | SUPER SONIC CARRIERS INC. | | | SCAC4 |
| 10 | SSFL | SOUTH SAN FRANCISCO LIVESTOCK HAULING CO. | | | PWRC |
| 11 | SSFM | SOUTH SHORE FARM | | | SCAC4 |
| 12 | SSFM | Societa per le Strade Ferrate Meridionali | Real: SFM | I | TRAFFIC |
| 13 | SSFN | SISTERS FORWARDING INC | | | SCAC4 |
| 14 | SSFO | SEVEN SEVEN SIX FIVE ZERO ZERO TWO | | | SCAC4 |
| 15 | SSFP | S & S FUEL CO INC | | | SCAC4 |
| 16 | SSFR | S & S FORWARDING LTD | | | SCAC4 |
| 17 | SSFT | STREAMSIDE FARMS TRUCKING INC | | | SCAC4 |
| 18 | SSFU | JSC SAKHALIN SHIPPING COMPANY LT | | RUS | BIC |
| 19 | SSFX | Southern States Phosphate & Fertilizer Co. | added 4/1958; 4/1961-7/1965; eliminated 4/1966 | | NAKINA |
| 20 | SSFX | Southern States Phosphate & Fertilizer Co. | 4/61-7/65; eliminated 4/66 | | NRHS |
| 21 | SSFX | SOUTHERN STATES PHOSPHATE & FERTILIZER CO. | | | PWRC |
| 22 | SSFY | SERVICE STAR FREIGHTWAYS INC | | | SCAC4 |
| 23 | SSFZ | TRAC LEASE INC | | | SCAC4 |
