| 1 | SGR | Eastwind Airlines, Inc. | IATA: W9, Callsign: Stinger, Ceased operations in 1999. ICAO designator changed from BBE | USA | AVCODES |
| 2 | SGR | Eastwind Airlines, Inc. | IATA: W9, | USA | AVCODES |
| 3 | SGR | Senegalair | Callsign: Senair, | SN | AVCODES |
| 4 | SGR | SkyGreece Airlines S.A. | IATA: GW, Callsign: Sky Greece, Commenced operations on 22 June 2014. Ceased operations on 03 September 2015. Founded in Athens, Greece in October 2012. | GR | AVCODES |
| 5 | SGR | Eastwind Airlines | IATA: W9 | | ICAO1 |
| 6 | SGR | SOUTH GEORGIA RAILROAD | | | PWRC |
| 7 | SGRB | SHENANDOAH GROWERS INC | | | SCAC4 |
| 8 | SGRH | SUGAR HILL TRANS INC | | | SCAC4 |
| 9 | SGRM | STINGRAY TRANSPORTATION LTD | | | SCAC4 |
| 10 | SGRP | SEAGROUP INC, GREENWICH CT | | | SCAC4 |
| 11 | SGRS | SINGH, G & R & SON TRUCKING LTD | | | SCAC4 |
| 12 | SGRU | SOGECO INTERNATIONAL SA | | CH | BIC |
| 13 | SGRW | SUNRISE GROWERS INC | | | SCAC4 |
| 14 | SGRX | Skip Gibbs | 7/2000-7/2005 (not listed) | | NAKINA |
| 15 | SGRX | Skip Gibbs | Jul-00 | | NRHS |
| 16 | SGRX | *SOUTHERN GULF RAILWAY | | | PWRC |
| 17 | SGRX | +SKIP GIBBS | | | PWRC |
| 18 | SGRX | Skip Gibbs | | | RSRV |
| 19 | SGRX | SKIP GIBBS | | | SCAC4 |
