| 1 | GST | Ghana Air Shuttle Ltd. | Callsign: Ghana Shuttle, | GH | AVCODES |
| 2 | GST | Georgian Star | Callsign: Georgian Star, | GE | AVCODES |
| 3 | GST | Global SuperTanker Services, LLC | Callsign: Supertank, | USA | AVCODES |
| 4 | GST | GOLDEN STATE TARIFF BUREAU | | | SCAC4 |
| 5 | GSTC | GOLDSTAR COURIERS | | | SCAC4 |
| 6 | GSTD | GRINSTEAD, STEPHEN M TRUCKING INC | | | SCAC4 |
| 7 | GSTF | GOLDEN STATE FLOORING | | | SCAC4 |
| 8 | GSTH | G & S TRANSPORTATION INC | | | SCAC4 |
| 9 | GSTL | Garden State Transit Lines | | US-NJ | TRAFFIC |
| 10 | GSTO | GESTION J P CHABLOZ INC | | | SCAC4 |
| 11 | GSTP | GOLD STAR TRANSPORT | | | SCAC4 |
| 12 | GSTR | GO SAFE TRUCKING INC | | | SCAC4 |
| 13 | GSTR | Gastrade S.A. / Газтрейд АД | | BG | VKM |
| 14 | GSTS | GST SERVICES INC | | | SCAC4 |
| 15 | GSTT | GOSELIN TRANSPORTATION | | | SCAC1 |
| 16 | GSTT | GOSELIN TRANSPORTATION INC | | | SCAC4 |
| 17 | GSTU | SEACO SRL | | BDS | BIC |
| 18 | GSTU | GENSTAR CONTAINER CORPORATION | | | PWRC |
| 19 | GSTU | Genstar Container Corporation | | | RSRV |
| 20 | GSTU | GENSTAR CONTAINER CORPORATION | | | SCAC4 |
| 21 | GSTV | GUSTAVOS TRUCKING | | | SCAC4 |
| 22 | GSTW | G S T | | | SCAC4 |
| 23 | GSTX | Georgia Power Co. | added 1/2005; 7/2005 | | NAKINA |
| 24 | GSTX | Galena-Signal Co. of Texas | 7/1923 | | NAKINA |
| 25 | GSTX | Galena-Signal Oil Co. of Texas | 8/1920 | | NAKINA |
| 26 | GSTX | *GALENA-SIGNAL (OIL) CO. OF TEXAS | | | PWRC |
| 27 | GSTX | +GEORGIA POWER CO. | | | PWRC |
| 28 | GSTX | GEORGIA POWER COMPANY | | | SCAC4 |
| 29 | GSTY | GALLEGOS & SON TRUCKING | | | SCAC4 |
