| 3401 | GLYK | GLORY TRUCKING INC | | | SCAC4 |
| 3402 | GLYO | GLYCON CORP | | | SCAC4 |
| 3403 | GLYP | GILLEY, PHILLIP TRUCKING INC | | | SCAC4 |
| 3404 | GLYQ | GUATS LIFE STYLE INC | | | SCAC4 |
| 3405 | GLYT | GLORY TRANSPORTATION INC | | | SCAC4 |
| 3406 | GLZC | GALAVIZ CASTANEDA, ANGEL RAMON | | | SCAC4 |
| 3407 | GLZF | GLAZIER FOODS COMPANY | | | SCAC4 |
| 3408 | GLZJ | GUTIERREZ LOPEZ, JOSE ANGEL | | | SCAC4 |
| 3409 | GLZM | GALINDO LOPEZ, TOMAS | | | SCAC4 |
| 3410 | GLZR | GULZAR TRANSPORT INC | | | SCAC4 |
| 3411 | GM | Air Slovakia BWJ, Ltd. | ICAO: SVK, Callsign: Slovakia, Founded in 1993. Commenced operations in 1994. AOC Revoked by Slovak authorities. | SK | AVCODES |
| 3412 | GM | Transwede Airways AB | ICAO: GMP, Callsign: Transwede, Renamed Blue Scandinavia on 28 October 1996. | S | AVCODES |
| 3413 | GM | Tri-MG Intra Asia Airlines, PT. | ICAO: TMG, Callsign: Trilines, IATA Prefix: 864, | RI | AVCODES |
| 3414 | GM | Germania Flug AG t/a Holiday Jet | ICAO: GSW, Callsign: Eiger, Founded in August 2014. Name changed to Germania Flug AG in November 2019. | CH | AVCODES |
| 3415 | GM | Chair Airlines AG t/a chair | ICAO: GSW, Callsign: Eiger, Founded in August 2014. Name changed from Germania Flug AG t/a Holiday Jet in November 2015 then changed from Germania Flug AG w.e.f. 11 June 2019. | CH | AVCODES |
| 3416 | GM | Germania Flug AG | ICAO: GSW, Callsign: Eiger, Founded in August 2014. Name changed from Germania Flug AG t/a Holiday Jet in November 2015. Name changed to Chair Airlines AG t/a chair w.e.f. 01 July 2019. | CH | AVCODES |
| 3417 | GM | Gainesville Midland R.R. Co. | 1/1975-1/1980; eliminated 1/1983 | | NAKINA |
| 3418 | GM | Gainesville Midland R.R. Co. | 1/75-1/80; eliminated 1/83 | | NRHS |
| 3419 | GM | GAINESVILLE MIDLAND RAILROAD CO. | | | PWRC |
| 3420 | GM&N | Gulf, Mobile & Northern R.R. (Co.) | 7/1923-7/1954 | | NAKINA |
| 3421 | GM&N | Gulf, Mobile & Northern R.R. | 4/38-1/52 | | NRHS |
| 3422 | GM&N | GULF, MOBILE & NORTHERN RAILROAD CO. | | | PWRC |
| 3423 | GM&O | Gulf, Mobile & Ohio R.R. | 1/1941-10/1966 | | NAKINA |
| 3424 | GM&O | Gulf, Mobile & Ohio R.R. | 1/52-10/66 | | NRHS |
| 3425 | GM&O | GULF, MOBILE & OHIO RAILROAD | | | PWRC |
| 3426 | GMA | Gama Aviation Ltd. | Callsign: Gama, ICAO designator changed from GOG | GB | AVCODES |
| 3427 | GMA | Gama Aviation | | | ICAO1 |
| 3428 | GMA | GEORGIA MARBLE | | | PWRC |
| 3429 | GMAC | GMA COVER CORPORATION | | | SCAC4 |
| 3430 | GMAD | GMA ACCESSORIES INC | | | SCAC4 |
| 3431 | GMAE | GRUBB, MICHAEL T | | | SCAC4 |
| 3432 | GMAM | GRAEBEL MID-ATLANTIC MOVERS - CHANT | | | SCAC4 |
| 3433 | GMAN | GARMAN TRUCKING COMPANY, INC | | | SCAC1 |
| 3434 | GMAT | GLOBAL LAND MATERIALS INC | | | SCAC4 |
| 3435 | GMAW | GILLIANO MOTOR TRANSPORT INC | | | SCAC4 |
| 3436 | GMAY | GARCIA, MANUEL | | | SCAC4 |
| 3437 | GMAZ | GENERAL MOTORS AUTO TERMINAL | | | PWRC |
| 3438 | GMB | Beriev Aviation Scientific Technical Complex, Joint Stock Company | Callsign: Beriev-Air, | RUS | AVCODES |
| 3439 | GMB | GM Buses | City: Manchester | GB | TRAFFIC |
| 3440 | GMB | Flytoget AS | | NO | VKM |
| 3441 | GMBB | GONZALEZ, MARIA | | | SCAC4 |
| 3442 | GMBD | G & M TRUCKING LLC | | | SCAC4 |
| 3443 | GMBE | GAMBLER EXPRESS INC | | | SCAC4 |
| 3444 | GMBH | GMB HEAVY INDUSTRIES INC | | | SCAC4 |
| 3445 | GMBL | G & M FARMS | | | SCAC4 |
| 3446 | GMBL | Gardena Municipal Bus Lines | | US-CA | TRAFFIC |
| 3447 | GMBM | GLOBAL MARINE SHIPPING SA | | | SCAC4 |
| 3448 | GMBN | GM Buses North | City: Manchester | GB | TRAFFIC |
| 3449 | GMBQ | GOLD MEDAL TRUCKING INC | | | SCAC4 |
| 3450 | GMBS | Greater Manchester Buses South Ltd. | | GB | TRAFFIC |
| 3451 | GMBT | GK INTERMODAL INC | | | SCAC4 |
| 3452 | GMC | General Motors Corporation | Callsign: General Motors, | USA | AVCODES |
| 3453 | GMC | General Motors | | | ICAO1 |
| 3454 | GMC | GENERAL MOTORS CORP. | | | PWRC |
| 3455 | GMC | General Motors Corp. | | USA | TRAFFIC |
| 3456 | GMCA | GMC AIR | | | SCAC4 |
| 3457 | GMCB | GLASS & MIRROR CRAFT LLC AND | | | SCAC4 |
| 3458 | GMCC | GMC INC | | | SCAC4 |
| 3459 | GMCD | GARCIA MARTINEZ, CECILIA | | | SCAC4 |
| 3460 | GMCG | GILMORE TRUCKING LLC | | | SCAC4 |
| 3461 | GMCI | GESTION MICHEL CHICOINE INC | | | SCAC4 |
| 3462 | GMCJ | GM CARRIERS INC | | | SCAC4 |
| 3463 | GMCK | G & M TRUCKING COMPANY | | | SCAC4 |
| 3464 | GMCL | GMC LOGISTICS CO LTD | | | SCAC4 |
| 3465 | GMCO | GARCIA MARTINEZ, OSCAR | | | SCAC4 |
| 3466 | GMCP | GENERAL MARITIME MANAGEMENT LLC | | | SCAC4 |
| 3467 | GMCR | GAMA TRUCKING | | | SCAC4 |
| 3468 | GMCS | GOMEZ CASTRO, VICENTE | | | SCAC4 |
| 3469 | GMCT | GALATEIA MARITIME CORPORATION | | | SCAC4 |
| 3470 | GMCU | PEACOCK CONTAINER PTE. LTD. | | SGP | BIC |
| 3471 | GMCX | General Motors Corp. | added 10/1979; 1/1980; eliminated 7/1987 | | NAKINA |
| 3472 | GMCX | General Manufacturing Co. | 8/1920 | | NAKINA |
| 3473 | GMCX | General Motors Corp. | 1/80; eliminated 7/87 | | NRHS |
| 3474 | GMCX | *GENERAL MANUFACTURING CO. | | | PWRC |
| 3475 | GMCX | *GENERAL MOTORS CORP. | | | PWRC |
| 3476 | GMCX | General Motors Corporation | | | RSRV |
| 3477 | GMCY | GORDON MANUFACTURING COMPANY | | | SCAC4 |
| 3478 | GMD | Guruge Airlines Ltd. | Callsign: Guruge Air, | CL | AVCODES |
| 3479 | GMD | Gulf Med Aviation Services Ltd. | Callsign: Gulf Med, | M | AVCODES |
| 3480 | GMDC | GRANMIN SA DE CV | | | SCAC4 |
| 3481 | GMDF | G M D F TRANSPORT INC | | | SCAC4 |
| 3482 | GMDI | GREENMANS MOVING & DELIVERY INC | | | SCAC4 |
| 3483 | GMDJ | GARAGE MORIN DE ST-JEAN INC | | | SCAC4 |
| 3484 | GMDK | GMD TRUCKING LTD | | | SCAC4 |
| 3485 | GMDM | GRUPO MACRO DIESEL MONTERREY SA DE | | | SCAC4 |
| 3486 | GMDU | GEMADEPT CORPORATION | | VN | BIC |
| 3487 | GMDU | GENERAL FORWARDING & AGENCY CORPORA | | | SCAC4 |
| 3488 | GMDV | GRUPO M H DIVISION TRANSPORTES SA D | | | SCAC4 |
| 3489 | GMDX | GM DIESEL DIVISION/GM CANADA | | | PWRC |
| 3490 | GMDX | General Motors Diesel Canada | | | RSRV |
| 3491 | GMDX | GM DIESEL DIVISION/GM CANADA | | | SCAC4 |
| 3492 | GME | Aguilas Mayas Internacional | Callsign: Mayan Eagles, | GCA | AVCODES |
| 3493 | GME | GM Helicopters 102 NE Co., Ltd. | Callsign: Globe Meridian, | LAO | AVCODES |
| 3494 | GME | Aguilas Mayas Internacional | | | ICAO1 |
| 3495 | GME | Georgsmarienhütten-Eisenbahn und Transport GmbH | Real: GET | D | TRAFFIC |
| 3496 | GMEA | GRUPO MEDINA Y ASOCIADOS | | | SCAC4 |
| 3497 | GMED | GESTION MADE EXPRESS INC | | | SCAC4 |
| 3498 | GMEF | GAGNON, MARINA ET FILS LTEE | | | SCAC4 |
| 3499 | GMEO | GME TRANSPORTATION | | | SCAC4 |
| 3500 | GMEQ | GLOVIS ALABAMA LLC | | | SCAC4 |
