| 3601 | GMNE | GERMAN, R S | | | SCAC4 |
| 3602 | GMNF | GORMANS FURNITURE | | | SCAC4 |
| 3603 | GMNQ | GEMINI INDUSTRIES | | | SCAC4 |
| 3604 | GMNS | G & M TRANSPORT | | | SCAC4 |
| 3605 | GMNY | GRAYMONT MATERIALS NY INC | | | SCAC4 |
| 3606 | GMO | Illinois Central R.R. Co. | added 4/1988; 1/1994-7/2005 | | NAKINA |
| 3607 | GMO | Illinois Central Gulf R.R. Co. | eliminated 4/1988 | | NAKINA |
| 3608 | GMO | Illinois Central Gulf R.R. Co. (Gulf, Mobile & Ohio R.R. Co.) | 1/1975-1/1980 | | NAKINA |
| 3609 | GMO | Illinois Central Gulf R.R. Co. (Gulf, Mobile & Ohio R.R. Co.) | 1/75-1/80 | | NRHS |
| 3610 | GMO | Illinois Central Gulf R.R. Co. | eliminated 4/88 | | NRHS |
| 3611 | GMO | Illinois Central R.R. Co. | added 4/88; 1/94-7/2000 | | NRHS |
| 3612 | GMO | CANADIAN NATIONAL RAILWAY [ILLINOIS CENTRAL RAILROAD; GULF, MOBILE & OHIO RR] | | | PWRC |
| 3613 | GMO | Gulf, Mobile and Ohio Railroad (Canadian National Railway) | | | RSRV |
| 3614 | GMO | Gulf, Mobil & Ohio Railroad | | USA | TRAFFIC |
| 3615 | GMOC | GAS MART OIL COMPANY | | | SCAC4 |
| 3616 | GMOI | GRUPO MANUFACTURERO RIO GRANDE SA D | | | SCAC4 |
| 3617 | GMOL | G & M OIL CO NC | | | SCAC4 |
| 3618 | GMOM | GRUPO MONARCA | | | SCAC4 |
| 3619 | GMON | GROUPE MONITRANS | | | SCAC4 |
| 3620 | GMOS | Migros Ostschweiz | | CH | VKM |
| 3621 | GMOT | GLEN MOORE TRANSPORT, INC. | | | SCAC1 |
| 3622 | GMOT | GLEN MOORE TRANSPORT INC | | | SCAC4 |
| 3623 | GMOU | GOLD STAR LINE LTD | | HK | BIC |
| 3624 | GMOV | GUARDIAN MOVING & STORAGE | | | SCAC4 |
| 3625 | GMP | Transwede Airways AB | IATA: GM, Callsign: Transwede, Renamed Blue Scandinavia on 28 October 1996. | S | AVCODES |
| 3626 | GMPA | GAMPAC EXPRESS INC | | | SCAC4 |
| 3627 | GMPD | G M PETROLEUM DISTRIBUTORS | | | SCAC4 |
| 3628 | GMPI | GRUMPY TRANSPORTATION SERVICES INC | | | SCAC4 |
| 3629 | GMPL | G M P TRUCK AND | | | SCAC4 |
| 3630 | GMPM | GET MORE AND PAYLESS MOVING AND DEL | | | SCAC4 |
| 3631 | GMPQ | GRANTON E N E | | | SCAC4 |
| 3632 | GMPR | G & M EXPRESS INC | | | SCAC4 |
| 3633 | GMPU | GONCALO MENDES PEREIRA-SOCIEDADE UN | | | SCAC4 |
| 3634 | GMPW | GLOBAL MARINE POWER | | | SCAC4 |
| 3635 | GMQ | Germania Express Fluggsesllschaft mbH | IATA: GI, Callsign: Corgi, Formerly Flynext Fluggsesllschaft mbH | D | AVCODES |
| 3636 | GMQX | MCGEORGE CONTRACTING CO INC | | | SCAC4 |
| 3637 | GMQZ | GRANITE MOUNTAIN QUARRIES | | | PWRC |
| 3638 | GMR | Gold Coast Air, Inc. | Callsign: Expeditor, | USA | AVCODES |
| 3639 | GMR | Golden Myanmar Airlines Public Co., Ltd | IATA: Y5, Callsign: Golden Myanmar, IATA Prefix: 509, Established in August 2012. Commenced operations on 11 January 2013. Ceased operations. | MYA | AVCODES |
| 3640 | GMR | Georgia Midland R.R. Inc. | 1/2005 | | NAKINA |
| 3641 | GMR | *GAINESVILLE MIDLAND RAILROAD CO. | | | PWRC |
| 3642 | GMR | +GEORGIA MIDLAND RAILROAD, INC. | | | PWRC |
| 3643 | GMR | GEORGIA MIDLAND RAILROAD INC | | | SCAC4 |
| 3644 | GMRC | Green Mountain R.R. Corp. | 1/1975-7/2005 | | NAKINA |
| 3645 | GMRC | Green Mountain R.R. Corp. | 1/75-7/2000 | | NRHS |
| 3646 | GMRC | GREEN MOUNTAIN RAILROAD CORP. | | | PWRC |
| 3647 | GMRC | Green Mountain Railroad | | | RSRV |
| 3648 | GMRC | GREEN MOUNTAIN RAILROAD CORPORATION | | | SCAC4 |
| 3649 | GMRC | Green Mountain R.R. Corp. | | USA | TRAFFIC |
| 3650 | GMRE | GMR | | | SCAC4 |
| 3651 | GMRF | GMR PHOENIX LLC | | | SCAC4 |
| 3652 | GMRG | GMR LOGISTICS | | | SCAC4 |
| 3653 | GMRJ | GUZMAN, ROY TRUCKING | | | SCAC4 |
| 3654 | GMRK | G & M TRUCKING | | | SCAC4 |
| 3655 | GMRL | GAMER LOGISTICS | | | SCAC4 |
| 3656 | GMRM | GMR MARKETING LLC | | | SCAC4 |
| 3657 | GMRN | GM TRANSPORT INC | | | SCAC4 |
| 3658 | GMRO | GERMAINE RESTAURANT SUPPLY | | | SCAC4 |
| 3659 | GMRR | GMR TRANSPORTATION | | | SCAC4 |
| 3660 | GMRS | GENERAL MARINE SERVICE OF CHENIER I | | | SCAC4 |
| 3661 | GMRU | MONROKO LIMITED | | | SCAC4 |
| 3662 | GMRV | GLOBE METAL RECYCLING SERVICES | | | SCAC4 |
| 3663 | GMRW | GILA MONSTER RACING INC | | | SCAC4 |
| 3664 | GMRX | GREAT MIAMI RAILROAD | | | PWRC |
| 3665 | GMRY | Great Miami & Scioto Ry. Co. | added 10/1998; 7/2000; eliminated 1/2001; 7/2005 | | NAKINA |
| 3666 | GMRY | Great Miami & Scioto Ry. Co. | added 10/98; 7/2000; eliminated 1/2001 | | NRHS |
| 3667 | GMRY | GREAT MIAMI & SCIOTO RAILWAY COMPANY | | | PWRC |
| 3668 | GMRY | Great Miami and Scioto Railway | | | RSRV |
| 3669 | GMRY | GREAT MIAMI & SCIOTO RAILWAY COMPAN | | | SCAC4 |
| 3670 | GMRY | Great Miami & Scioto Railway | | USA | TRAFFIC |
| 3671 | GMS | Aeroservicios Gama, S.A. de C.V. | Callsign: Servicios Gama, | MEX | AVCODES |
| 3672 | GMS | Ghadames Air | Callsign: Ghadames, | LAR | AVCODES |
| 3673 | GMS | Aeroservicios Gama | | | ICAO1 |
| 3674 | GMSA | GARCIA MIRELES, CESAR | | | SCAC4 |
| 3675 | GMSE | GEM STATE TRANSPORTATION INC | | | SCAC4 |
| 3676 | GMSG | GROVES MOVING & STORAGE CO | | | SCAC4 |
| 3677 | GMSI | GRIFFIN MOVING SERVICES INC | | | SCAC4 |
| 3678 | GMSJ | GMS TRANSPORT LLC | | | SCAC4 |
| 3679 | GMSK | GEMINI MEXICO SA DE CV | | | SCAC4 |
| 3680 | GMSL | GALMAR SHIPPING INTERNATIONAL | | | SCAC1 |
| 3681 | GMSL | GMS TRANSPORTATION SYSTEMS LLC | | | SCAC4 |
| 3682 | GMSM | GEMSTONE MINING ADVENTURES | | | SCAC4 |
| 3683 | GMSO | GERBER MOVING & STORAGE INC | | | SCAC4 |
| 3684 | GMSP | GEMINI MOVING SPECIALISTS, Mercury Van & Storage Co | | | SCAC1 |
| 3685 | GMSR | Kansas City Southern Ry. Co. | added 7/1994; 7/2000-7/2005 | | NAKINA |
| 3686 | GMSR | SouthRail Corp. | added 7/1988; 1/1994; eliminated 7/1994 | | NAKINA |
| 3687 | GMSR | Gulf & Mississippi R.R. Corp. | added 10/1985; added 1/1986; eliminated 7/1988 | | NAKINA |
| 3688 | GMSR | Gulf & Mississippi R.R. Corp. | added 1/86; eliminated 7/88 | | NRHS |
| 3689 | GMSR | SouthRail Corp. | added 7/88; 1/94; eliminated 7/94 | | NRHS |
| 3690 | GMSR | Kansas City Southern Ry. Co. | added 7/94; 7/2000 | | NRHS |
| 3691 | GMSR | KANSAS CITY SOUTHERN RWY. CO. [SOUTHRAIL CORP.; GULF & MISSISSIPPI RR.] | | | PWRC |
| 3692 | GMSR | Gulf & Mississippi Railroad (Kansas City Southern Railway) | | | RSRV |
| 3693 | GMSS | GMS AUTOMOTIVE INC | | | SCAC4 |
| 3694 | GMT | Grupoaereo Monterrey, S.A. de C.V. d/b/a Magnicharters | Callsign: Grupomonterrey, Founded in 1994. Commenced operations in January 1995. | MEX | AVCODES |
| 3695 | GMT | Grupoaereo Monterrey | | | ICAO1 |
| 3696 | GMTF | G & M TRANSPORT | | | SCAC4 |
| 3697 | GMTG | G AND M TRUCKING | | | SCAC4 |
| 3698 | GMTH | GMT SHIPPING LINE LTD HONG KONG | | | SCAC4 |
| 3699 | GMTI | GRIMES DISTRIBUTION SERVICES, INC | | | SCAC1 |
| 3700 | GMTL | GIAMONNA TRANSPORT&LEASING CO | | | SCAC1 |
