| 1 | GS | Air Foyle Limited | ICAO: UPA, Callsign: Foyle, Designator recalled by IATA | GB | AVCODES |
| 2 | GS | Grant Aviation, Inc. | ICAO: SWV, Designator GS* recalled by IATA | USA | AVCODES |
| 3 | GS | Air Vosges | | F | AVCODES |
| 4 | GS | General and Aviation Services Ltd. | ICAO: NGS, Callsign: Golf Sierra, Name changed to General Air Services Limited. ICAO callsign changed to Genair | WAN | AVCODES |
| 5 | GS | Grand China Express Co. Ltd. | ICAO: GCR, IATA Prefix: 826, Name changed to Tianjin Airlines Co. Ltd | PRC | AVCODES |
| 6 | GS | Tianjin Airlines Co. Ltd | ICAO: GCR, Callsign: China Dragon, IATA Prefix: 826, Name changed from Grand China Express Co. Ltd. ICAO Callsign changed to Bo Hai | PRC | AVCODES |
| 7 | GS | Tianjin Airlines Co. Ltd | ICAO: GCR, Callsign: Bo Hai, IATA Prefix: 826, Name changed from Grand China Express Co. Ltd. ICAO Callsign changed from China Dragon. | PRC | AVCODES |
| 8 | GS | GEORGIA SOUTHERN RAILWAY CO. | | | SCAC4 |
| 9 | GS&G | Georgia, Southwestern & Gulf R.R. | 7/1923-4/1938 | | NAKINA |
| 10 | GS&G | Georgia, Southwestern & Gulf R.R. | Apr-38 | | NRHS |
| 11 | GS&G | GEORGIA, SOUTHWESTERN & GULF RAILROAD | | | PWRC |
| 12 | GSA | Garden State Airlines, Inc. | Callsign: Garden State, | USA | AVCODES |
| 13 | GSA | Garden State Airlines | | | ICAO1 |
| 14 | GSAB | Göteborgs Spårvägar | City: Göteborg | S | TRAFFIC |
| 15 | GSAC | G S FREIGHT INC | | | SCAC4 |
| 16 | GSAG | GLOBAL STEAMSHIP AGENCIES INC | | | SCAC4 |
| 17 | GSAJ | GOLD STAR TRUCKING LLC | | | SCAC4 |
| 18 | GSAL | GRACESA LTD GIBRALTER | | | SCAC4 |
| 19 | GSAM | GLOBAL STAR ARIMAR BV | | | SCAC4 |
| 20 | GSAND | Travel: Golden Sands | | BG | TRAFFIC |
| 21 | GSAQ | G & S TRUCKING | | | SCAC4 |
| 22 | GSAR | GSA 2005 TRANSPORT | | | SCAC4 |
| 23 | GSAW | GTI TRANSPORT LTD | | | SCAC4 |
| 24 | GSAX | Granite State Concrete Co. | 7/2000-7/2005 (not listed) | | NAKINA |
| 25 | GSAX | Granite State Concrete Co. | Jul-00 | | NRHS |
| 26 | GSAX | GRANITE STATE CONCRETE CO. | | | PWRC |
| 27 | GSAX | Granite State Concrete | | | RSRV |
| 28 | GSAX | GRANITE STATE CONCRETE CO INC | | | SCAC4 |
| 29 | GSB | Gading Sari Aviation Services Sdn Bhd d/b/a G Sari | IATA: 3G, Callsign: Gading Sari, IATA Prefix: 380, Name changed to DRB-HICOM AsiaCargo Express Sdn. Bhd. ICAO Designator changed to CXM | MAL | AVCODES |
| 30 | GSBC | G S B TRUCKING | | | SCAC4 |
| 31 | GSBE | GSA INTERNATIONAL LTD | | | SCAC4 |
| 32 | GSBG | GENO'S BROKERAGE INC | | | SCAC4 |
| 33 | GSBI | GENERAL SHALE BRICK INC | | | SCAC4 |
| 34 | GSBQ | GATES & SONS BAR-B-QUE PRODUCTS INC | | | SCAC4 |
| 35 | GSC | Golden State Airlines, Inc. | Callsign: Golden State, ICAO designator changed to GOL | USA | AVCODES |
| 36 | GSC | Grandstar Cargo International Airlines Co., Ltd | IATA: GD, Callsign: Grandstar Cargo, Founded in 2008. Ceased operations in May 2012. | PRC | AVCODES |
| 37 | GSCB | GAGNE & SON CONCRETE BLOCKS INC | | | SCAC4 |
| 38 | GSCD | GRAND SHIPPING CO LTD | | | SCAC4 |
| 39 | GSCE | G S C ENTERPRISES INC | | | SCAC4 |
| 40 | GSCH | GARDEN STATE CONTAINER HAULAGE INC | | | SCAC4 |
| 41 | GSCH | Geiger und Schüle Bau GmbH | | DE | VKM |
| 42 | GSCM | GASCHEM SERVICES GMBH & CO KG | | | SCAC4 |
| 43 | GSCO | GULF SHIPPING COMPANY | | | PWRC |
| 44 | GSCO | GSC LOGISTICS INC | | | SCAC4 |
| 45 | GSCP | GARDENSCAPE TRANSPORT INC | | | SCAC4 |
| 46 | GSCQ | GRIMES SUPPLY CHAIN SERVICES INC | | | SCAC4 |
| 47 | GSCR | GULF STAR CONTRACTING | | | SCAC4 |
| 48 | GSCS | GRAEBEL/SOUTH CAROLINA MOVERS INC | | | SCAC4 |
| 49 | GSCT | GROUP TRANSPORT INC | | | SCAC4 |
| 50 | GSCU | GSM TANK CONTAINER CANARIAS, S.L. | | E | BIC |
| 51 | GSCU | EUROTAINER U.S., INC. | | | PWRC |
| 52 | GSCU | Eurotainer US | | | RSRV |
| 53 | GSCU | GESCO | | | SCAC4 |
| 54 | GSCV | GREENSTAR STETAMSHIP COMPANY GMBH & | | | SCAC4 |
| 55 | GSCW | Garden State Coachways | | US-NJ | TRAFFIC |
| 56 | GSCX | General American Marks Co. | added 1/2003; 7/2005 | | NAKINA |
| 57 | GSCX | GATX Financial Corp. | added 1/2002; eliminated 1/2003 | | NAKINA |
| 58 | GSCX | GATX/GLC Leasing Corp. | added 4/1985; 1/1994-7/2000; eliminated 1/2002 | | NAKINA |
| 59 | GSCX | Greenville Leasing Co. | added 4/1981; eliminated 4/1985 | | NAKINA |
| 60 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | 1/1980; eliminated 4/1981 | | NAKINA |
| 61 | GSCX | Greenville Steel Car Co. | 4/1970-1/1975 | | NAKINA |
| 62 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | 10/1966 | | NAKINA |
| 63 | GSCX | Greenville Steel Car | 7/1965 | | NAKINA |
| 64 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | added 7/1963 | | NAKINA |
| 65 | GSCX | Gulf States Creosoting Co. | 7/1930-7/1954; eliminated 1/1955 | | NAKINA |
| 66 | GSCX | Gulf States Creosoting Co. | 4/38-1/52 | | NRHS |
| 67 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | added 7/63 | | NRHS |
| 68 | GSCX | Greenville Steel Car | Jul-65 | | NRHS |
| 69 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | Oct-66 | | NRHS |
| 70 | GSCX | Greenville Steel Car Co. | 4/70-1/75 | | NRHS |
| 71 | GSCX | Greenlease Co., a Division of Greenville Steel Car Co. | 1/80; eliminated 4/81 | | NRHS |
| 72 | GSCX | Greenville Leasing Co. | added 4/81; eliminated 4/85 | | NRHS |
| 73 | GSCX | GATX/GLC Leasing Corp. | added 4/85; 1/94-7/2000 | | NRHS |
| 74 | GSCX | *GULF STATES CREOSOTING CO. | | | PWRC |
| 75 | GSCX | +GENERAL AMERICAN MARKS COMPANY / GREENVILLE LEASING CORPORATION | | | PWRC |
| 76 | GSCX | Greenville Leasing (GATX) | | | RSRV |
| 77 | GSCX | GENERAL AMERICAN MARKS COMPANY | | | SCAC4 |
| 78 | GSCX | GATX Capital Corporation | | USA | TRAFFIC |
| 79 | GSCZ | GURNSEY STONE CO. | | | PWRC |
| 80 | GSD | GOODMAN-STANNAFORTH DIVISION | | | PWRC |
| 81 | GSDC | GRANITE AND STONE DECOR OR ETERNAL | | | SCAC4 |
| 82 | GSDL | GREATPOINT SHIPPING LTD | | | SCAC4 |
| 83 | GSDX | General Standard Co. | 4/1970 | | NAKINA |
| 84 | GSDX | General Standard Co. | Apr-70 | | NRHS |
| 85 | GSDX | RETIRED 10-28-93 ATP {GENERAL STANDARD CO.} | | | PWRC |
| 86 | GSE | Saga, S.A. | Callsign: Saga, | E | AVCODES |
| 87 | GSE | C V Cargo S.A. | IATA: V9, IATA Prefix: 358, | CO | AVCODES |
| 88 | GSE | Grand Service Express | | RU | TRAFFIC |
| 89 | GSEE | GREAT SEQUOIA EXPRESS INC | | | SCAC4 |
| 90 | GSEF | G & S EXPEDITED FREIGHT LTD | | | SCAC4 |
| 91 | GSEH | G & S ENTERPRISE | | | SCAC4 |
| 92 | GSEI | GOLD STAR EXPEDITED SERVICES | | | SCAC4 |
| 93 | GSEK | G S EXPRESS INC | | | SCAC4 |
| 94 | GSEM | GSE TRUCKING | | | SCAC4 |
| 95 | GSEO | GOLDSTAR ELITE | | | SCAC4 |
| 96 | GSET | GOLD STARR EXPEDITED TRANSPORTATION | | | SCAC4 |
| 97 | GSF | Aeronaves Ejecutivas GSF, S.A. de C.V. | Callsign: Aero Gesef, | MEX | AVCODES |
| 98 | GSF | Georgia Southern and Florida Ry. Co. | 1/1975-7/2005 | | NAKINA |
| 99 | GSF | Georgia Southern and Florida Ry. Co. | 1/75-7/2000 | | NRHS |
| 100 | GSF | NORFOLK SOUTHERN [SOUTHERN] [GEORGIA SOUTHERN & FLORIDA RY.] | | | PWRC |
