| 1 | GO | Go Fly Ltd. | ICAO: GOE, Callsign: Go-Flight, IATA Prefix: 333, Merged into Easyjet U2*/EZY. IATA designator changed from OG w.e.f. 29 November 2000. | GB | AVCODES |
| 2 | GO | Air Stord A.S. | ICAO: SOR, Callsign: Air Stord, founded in January 1990. Ceased operations on 19 January 1999. | N | AVCODES |
| 3 | GO | Kuzu Airlines Cargo Transport | ICAO: KZU, IATA Prefix: 444, Name changed to ULS Airlines Cargo on 03 July 2009. Name changed from Baron Hava Yolu Kargo Tasimaciligi AS | TR | AVCODES |
| 4 | GO | ULS Havayollair Kargo Tasimacilik A.S. | ICAO: KZU, IATA Prefix: 444, Name changed from Kuzu Airlines Cargo Transport on 03 July 2009. Name changed from Baron Hava Yolu Kargo Tasimaciligi AS | TR | AVCODES |
| 5 | GO | G&O: Guinovart & Oshsa | | E | TRAFFIC |
| 6 | GO | CGOSTEC GmbH | | DE | VKM |
| 7 | GOA | Alberta Government | Callsign: Alberta, | CDN | AVCODES |
| 8 | GOA | Alberta Government | | | ICAO1 |
| 9 | GOAA | GRAND OPENING TRUCK LINES INC | | | SCAC4 |
| 10 | GOAC | GLOBAL AIRCRAFT INDUSTRIES LTD | | | SCAC4 |
| 11 | GOAF | GOLDEN ARROW LOGISTICS INC | | | SCAC4 |
| 12 | GOAG | GLOBAL OCEAN AGENCY LINES LLC | | | SCAC4 |
| 13 | GOAK | GOLDEN OAK | | | SCAC4 |
| 14 | GOAL | GOLDEN ALLIANCE LOGISTICS INC | | | SCAC4 |
| 15 | GOAM | GUARDSHIP OF AMERICA | | | SCAC4 |
| 16 | GOAU | PHOENIX INTERNATIONAL SRL | | I | BIC |
| 17 | GOAU | PHOENIX INTERNATIONAL SRL | | | SCAC4 |
| 18 | GOAY | GODERICH AIRCRAFT INC | | | SCAC4 |
| 19 | GOB | Dash Aviation Ltd. | Callsign: Pilgrim, | GB | AVCODES |
| 20 | GOB | Dash Aviation | | | ICAO1 |
| 21 | GOB | Gotthardbahn | | CH | TRAFFIC |
| 22 | GOBA | GLOBAL TRANSPORTATION & LOGISTICS I | | | SCAC4 |
| 23 | GOBC | GOLDEN FREEDOM TRANSPORT INC | | | SCAC4 |
| 24 | GOBK | GOODMAN, GARY TRUCKING INC | | | SCAC4 |
| 25 | GOBL | GOBLECO INC | | | SCAC4 |
| 26 | GOBN | GO-BAR TRUCKING LLP | | | SCAC4 |
| 27 | GOBO | GOSAL BROTHERS TRANSPORT INC | | | SCAC4 |
| 28 | GOBP | GOLDEN STATE TRANSPORT LTD | | | SCAC4 |
| 29 | GOBR | GONZALEZ PEREZ, MAX ALONZO | | | SCAC4 |
| 30 | GOBT | GORDON, BILL TRUCKING | | | SCAC4 |
| 31 | GOBUE | AS GoBus | | EST | TRAFFIC |
| 32 | GOBUS | Go Bus Transport Ltd | | NZ | TRAFFIC |
| 33 | GOC | Geocuba | Callsign: Geocuba, | C | AVCODES |
| 34 | GOCD | GRAY OIL COMPANY INC | | | SCAC4 |
| 35 | GOCE | GLOVER OIL COMPANY INC | | | SCAC4 |
| 36 | GOCF | GONVICK OIL CO | | | SCAC4 |
| 37 | GOCG | GENERAL GAS CARRIER CORPORATION VII | | | SCAC4 |
| 38 | GOCJ | GOFF OIL CORP | | | SCAC4 |
| 39 | GOCM | GOC LTD | | | SCAC4 |
| 40 | GOCO | GoCollective A/S | | DK | TRAFFIC |
| 41 | GOCP | GALLAHAN OIL CO | | | SCAC4 |
| 42 | GOCR | GREAT OCEAN SHIPPING LIMITED | | | SCAC4 |
| 43 | GOCT | GANT OIL CO INC | | | SCAC4 |
| 44 | GOCU | GREENFIELD OVERSEAS CONTAINER, INC. | | | PWRC |
| 45 | GOCU | Greenfield Overseas Container | | | RSRV |
| 46 | GOCX | Chevron Phillips Chemical Co. L.P. | added 1/2001; 7/2005 | | NAKINA |
| 47 | GOCX | Chevron Chemical Co. | added 4/1996; 7/2000; eliminated 1/2001 | | NAKINA |
| 48 | GOCX | Chevron U.S.A. Inc. | 1/1994; eliminated 4/1996 | | NAKINA |
| 49 | GOCX | Gulf Refining and Marketing Co., Division of Gulf Oil Corp. | added 7/1982 | | NAKINA |
| 50 | GOCX | Gulf Oil Co.—U.S. Division of Gulf Oil Corp. | added 10/1976; 1/1980; eliminated 7/1982 | | NAKINA |
| 51 | GOCX | Gulf Oil Co.--U.S. Division of Gulf Oil Corp. | 1/80; eliminated 7/82 | | NRHS |
| 52 | GOCX | Gulf Refining and Marketing Co., Division of Gulf Oil Corp. | added 7/82 | | NRHS |
| 53 | GOCX | Chevron U.S.A. Inc. | 1/94; eliminated 4/96 | | NRHS |
| 54 | GOCX | Chevron Chemical Co. | added 4/96; 7/2000; eliminated 1/2001 | | NRHS |
| 55 | GOCX | Chevron Phillips Chemical Co. L.P. | added 1/2001 | | NRHS |
| 56 | GOCX | CHEVRON PHILLIPS CHEMICAL CO. (CHEVRON U.S.A. INC.) [GULF OIL PRODUCTS CO.] | | | PWRC |
| 57 | GOCX | Gulf Oil Products (Chevron Phillips Chemical) | | | RSRV |
| 58 | GOCX | CHEVRON PHILLIPS CHEMICAL COMPANY L | | | SCAC4 |
| 59 | GOCY | GALE OIL CO INC | | | SCAC4 |
| 60 | GODB | GODBOUT, NOEL TRANSPORT LTD | | | SCAC4 |
| 61 | GODD | GO TRANSFER SA DE CV | | | SCAC4 |
| 62 | GODE | GRANGE SUPPLY CO OF ODESSA | | | SCAC4 |
| 63 | GODJ | G.O.D., INC | | | SCAC1 |
| 64 | GODJ | G O D INC | | | SCAC4 |
| 65 | GODK | GOOD TRUCKING INC | | | SCAC4 |
| 66 | GODL | Go Ahead Docklands | | GB | TRAFFIC |
| 67 | GODN | GODS ARMY CENTENO TRANSPORT | | | SCAC4 |
| 68 | GODP | GORDON TRUCKING INC (REFRIGERATED D | | | SCAC4 |
| 69 | GODQ | GODBOUT, ANDRE JOAILLIER ENRG | | | SCAC4 |
| 70 | GODR | GOODRIDGE USA INC | | | SCAC4 |
| 71 | GODT | GODTS, ANDY & SONS LTD | | | SCAC4 |
| 72 | GODV | GO TO LOGISTICS LLC | | | SCAC4 |
| 73 | GODY | GODSEY TRANSPORT | | | SCAC4 |
| 74 | GOE | Go Fly Ltd. | IATA: GO, Callsign: Go-Flight, IATA Prefix: 333, Merged into Easyjet U2*/EZY. IATA designator changed from OG w.e.f. 29 November 2000. | GB | AVCODES |
| 75 | GOE | Go Fly Ltd. | IATA: OG, Callsign: Go-Flight, IATA designator changed to GO w.e.f. 29 November 2000. | GB | AVCODES |
| 76 | GOE | Großherzoglich Oldenburgische Eisenbahn | | D | TRAFFIC |
| 77 | GOEA | GOEMANS TRUCKING LTD | | | SCAC4 |
| 78 | GOEB | GEOMEMBRANE TECHNOLOGIES INC | | | SCAC4 |
| 79 | GOEE | GOES ENTERPRISES INC | | | SCAC4 |
| 80 | GOEG | GOLDEN EAGLE EXPRESS, Barlow Container&Packaging Co | | | SCAC1 |
| 81 | GOEK | GOOD ONE EXPRESS (NYC) INC | | | SCAC4 |
| 82 | GOEO | GOOD EARTH ORGANICS CORP, THE | | | SCAC4 |
| 83 | GOF | Gof-Air, S.A. de C.V. | Callsign: Gof-Air, | MEX | AVCODES |
| 84 | GOF | Gof-Air | | | ICAO1 |
| 85 | GOFG | GOFF, L & SONS TRUCKING CO | | | SCAC4 |
| 86 | GOFI | GOFAST INC | | | SCAC4 |
| 87 | GOFL | GOPHER FREIGHT LINES INC | | | SCAC4 |
| 88 | GOG | Mframa Airlines Limited | Callsign: Goldways, | GH | AVCODES |
| 89 | GOG | Gama Aviation Ltd. | Callsign: Gama, ICAO designator changed to GMA | GB | AVCODES |
| 90 | GOGB | GOGEL BROTHERS LLC | | | SCAC4 |
| 91 | GOGI | GO LOGISTICS INC | | | SCAC4 |
| 92 | GOGK | GOGO TRUCKTRANS INC | | | SCAC4 |
| 93 | GOGN | GO LOGISTICS INC | | | SCAC4 |
| 94 | GOGQ | G-ONE (G-1) LOGISTICS INC | | | SCAC4 |
| 95 | GOGW | GORDON TRUCKING INC (GP WEST | | | SCAC4 |
| 96 | GOHC | GTS OILFIELD HAULING | | | SCAC4 |
| 97 | GOHN | GOHNER TRUCKING | | | SCAC4 |
| 98 | GOHS | GORDON TRUCKING INC (GP HALSEY SHUT | | | SCAC4 |
| 99 | GOHT | GARTHWAITE OIL HEAT SERVICE | | | SCAC4 |
| 100 | GOHX | General American Marks Co. | added 1/1998; 7/2000-7/2005 | | NAKINA |
