| 3901 | GNMC | GENERAL MOTORS CORP | | | SCAC4 |
| 3902 | GNMD | GENESIS MOLD INC | | | SCAC4 |
| 3903 | GNMG | GREEN MOUNTAIN MESSENGER | | | SCAC4 |
| 3904 | GNMN | GRAEBEL NORTHEASTERN MOVERS INC | | | SCAC4 |
| 3905 | GNMV | GENERAL MOVING COMPANY INC | | | SCAC4 |
| 3906 | GNNA | GRANITE NATIONAL INC | | | SCAC4 |
| 3907 | GNNN | GANNON TRUCKING INC | | | SCAC4 |
| 3908 | GNNS | GREAT NORTHERN TRANS-PORT INC | | | SCAC4 |
| 3909 | GNO | Grand Airways, Inc. | | USA | AVCODES |
| 3910 | GNOG | GRAEBEL NEW ORLEANS MOVERS INC | | | SCAC4 |
| 3911 | GNOI | GIBBS/NORTAC INDUSTRIES LTD | | | SCAC4 |
| 3912 | GNOK | GEANTOS TRUCKING | | | SCAC4 |
| 3913 | GNOO | GENERAL OIL COMPANY | | | SCAC4 |
| 3914 | GNOX | GARMI DEL NORTE SA DE CV | | | SCAC4 |
| 3915 | GNPA | GEORGIA NATIONAL PRODUCE LLC | | | SCAC4 |
| 3916 | GNPD | GIANT TRANSPORTATION LTD | | | SCAC4 |
| 3917 | GNPF | GREEN PRO FUEL | | | SCAC4 |
| 3918 | GNPR | GNP RLY INC. | | | SCAC4 |
| 3919 | GNPX | Great Southern Plywood Co. | added 7/1975; eliminated 7/1979 | | NAKINA |
| 3920 | GNPX | Great Northern Plywood Co. | added 11/1973; 1/1975; eliminated 7/1975 | | NAKINA |
| 3921 | GNPX | Great Southern Plywood Co. | added 7/75; eliminated 7/79 | | NRHS |
| 3922 | GNPX | Great Northern Plywood Co. | added 11/73; 1/75; eliminated 7/75 | | NRHS |
| 3923 | GNPX | GREAT SOUTHERN PLYWOOD CO. [GREAT NORTHERN PLYWOOD CO.] | | | PWRC |
| 3924 | GNQD | GRIFFIN LOGISTICS LTD | | | SCAC4 |
| 3925 | GNR | Gambia International Airlines Ltd. | IATA: GC, Callsign: Gambia International, IATA Prefix: 034, Designator GC reinstated by IATA. Ceased opeation in 2007. IATA deignator changed from GC* | WAG | AVCODES |
| 3926 | GNR | Gambia International Airlines Ltd. | IATA: GC, Callsign: Gambia International, IATA deignator changed to GC | WAG | AVCODES |
| 3927 | GNR | Gambia International Airlines | IATA: GC | | ICAO1 |
| 3928 | GNR | Great Northern Railway | | AUS | TRAFFIC |
| 3929 | GNRB | GENGLER, ROBERT | | | SCAC4 |
| 3930 | GNRC | GREEN RIVER CHEESE CO | | | SCAC4 |
| 3931 | GNRG | G & R G INC | | | SCAC4 |
| 3932 | GNRH | GREEN, RICHARD I INC | | | SCAC4 |
| 3933 | GNRI | G & R INTERNATIONAL | | | SCAC4 |
| 3934 | GNRJ | GOODSON, ROGER TRUCKING | | | SCAC4 |
| 3935 | GNRL | GENERAL LOGISTICS INC | | | SCAC4 |
| 3936 | GNRO | G & R CONTRACTING LTD | | | SCAC4 |
| 3937 | GNRQ | GLENERY, INC | | | SCAC1 |
| 3938 | GNRQ | GLENERY INC | | | SCAC4 |
| 3939 | GNRR | Georgia Northeastern R.R. Co., Inc. | added 7/1988; 1/1994-7/2005 | | NAKINA |
| 3940 | GNRR | Georgia Northeastern R.R. Co., Inc. | added 7/88; 1/94-7/2000 | | NRHS |
| 3941 | GNRR | GEORGIA NORTHEASTERN RAILROAD COMPANY | | | PWRC |
| 3942 | GNRR | Georgia Northeastern Railroad | | | RSRV |
| 3943 | GNRR | GEORGIA NORTHEASTERN RAILROAD CO | | | SCAC4 |
| 3944 | GNRS | GRONER, STANLEY | | | SCAC4 |
| 3945 | GNRS | Great Northern Rail Services | GNRS is now known as Southern Shorthaul Railroad | AUS | TRAFFIC |
| 3946 | GNRS | Gemernákup, a.s. | | SK | VKM |
| 3947 | GNRU | GENERON IGS, INC. | | USA | BIC |
| 3948 | GNS | Eastern Executive Air Charter Ltd. | Callsign: Genesis, | GB | AVCODES |
| 3949 | GNS | Eastern Executive Air Charter | | | ICAO1 |
| 3950 | GNSC | GREENSEA INC | | | SCAC4 |
| 3951 | GNSF | G&S FREIGHT SERVICE, T. G.&D. S. Freight Service, INC | | | SCAC1 |
| 3952 | GNSF | G & S FREIGHT SERVICE | | | SCAC4 |
| 3953 | GNSG | GUNNOES SAUSAGE COMPANY INC | | | SCAC4 |
| 3954 | GNSH | GENSHIPPING CORPORATION | | | SCAC4 |
| 3955 | GNSI | GENERAL NOLI SPEDIZIONI INTERNAZION | | | SCAC4 |
| 3956 | GNSO | GOLDEN STATE LOGISTICS | | | SCAC4 |
| 3957 | GNSU | SAMSKIP MCL BV | | NL | BIC |
| 3958 | GNSU | GEEST NORTH SEA LINE BV | | | SCAC4 |
| 3959 | GNSV | GUNNELL, SEAN | | | SCAC4 |
| 3960 | GNT | Business Air Ltd. | IATA: II, Callsign: Granite, Merged with British Midland Regional Limited on 05 February 2001. Established in 1987. Commenced operations in August 1987. | GB | AVCODES |
| 3961 | GNT | Gintarines Avialinous | Callsign: Ginta, | LT | AVCODES |
| 3962 | GNT | Joint Stock Company "Amber Air" Ltd | IATA: 0A, Callsign: Ginta, Ceased Operations | LT | AVCODES |
| 3963 | GNT | Amber Air | IATA: 0A | | ICAO1 |
| 3964 | GNTB | GREAT NORTHERN TRUCKING & CLEARING | | | SCAC4 |
| 3965 | GNTC | GENNEX TRANSPORTATION INC | | | SCAC4 |
| 3966 | GNTG | GREAT NORTHERN TRUCKING INC | | | SCAC4 |
| 3967 | GNTJ | GERSAN TRANSPORT INC | | | SCAC4 |
| 3968 | GNTK | GENTEK BUILDING PRODUCTS LTD | | | SCAC4 |
| 3969 | GNTL | GREEN TRANSPORTATION INC | | | SCAC4 |
| 3970 | GNTN | GRAND NATIONAL TRANSPORT LLC | | | SCAC4 |
| 3971 | GNTQ | GRANITE TRANSPORT LIMITED | | | SCAC4 |
| 3972 | GNTR | G N TRANSPORT LTD | | | SCAC4 |
| 3973 | GNTS | GREAT NORTHERN TRANSPORTATION SYSTEM | | | PWRC |
| 3974 | GNTS | GRAND TRANSPORTATION INC | | | SCAC4 |
| 3975 | GNTT | DANTE GENTILINI TRUCKING INC | | | SCAC4 |
| 3976 | GNTU | GENESIS CHEMICAL TANK CONTAINERS LLC | | UAE | BIC |
| 3977 | GNTW | GREAT NORTHERN TRANSPORTATION INC | | | SCAC4 |
| 3978 | GNTX | TTX Co. | added 1/2005; 7/2005 | | NAKINA |
| 3979 | GNTX | Continental Tank Car Corp. | added 7/1962 | | NAKINA |
| 3980 | GNTX | TTX CO. | | | PWRC |
| 3981 | GNTX | TTX COMPANY | | | SCAC4 |
| 3982 | GNTY | GENERAL TRANSYSTEMS INC | | | SCAC4 |
| 3983 | GNUI | GENERAL UTILITIES INC | | | SCAC4 |
| 3984 | GNUR | GARNEAU, LOUIS SPORTS INC | | | SCAC4 |
| 3985 | GNUS | GENERAL NOLI USA INC | | | SCAC4 |
| 3986 | GNV | General Avia | Callsign: General Avia, | AM | AVCODES |
| 3987 | GNVB | GENEVE BUTANE INC | | | SCAC4 |
| 3988 | GNVD | GREEN VALLEY FOODS | | | SCAC4 |
| 3989 | GNVF | GAINESVILLE FUEL INC | | | SCAC4 |
| 3990 | GNVI | GLENVIEW VINEYARDS INC | | | SCAC4 |
| 3991 | GNVL | GRENVILLE MINERALS | | | SCAC4 |
| 3992 | GNW | Genessee & Wyoming R.R. | 4/1961-10/1966 & 1/1975; eliminated 7/1975 | | NAKINA |
| 3993 | GNW | Genessee & Wyoming R.R. | 4/61-10/66 & 1/75; eliminated 7/75 | | NRHS |
| 3994 | GNW | GENESSEE & WYOMING RAILROAD CO. | | | PWRC |
| 3995 | GNW | Genesee & Wyoming R.R. | | USA | TRAFFIC |
| 3996 | GNWC | GREENWAY CARRIERS LLC | | | SCAC4 |
| 3997 | GNWI | G & W TRANSPORTATION INC | | | SCAC4 |
| 3998 | GNWQ | GREENWAY TRANSPORTATION INC | | | SCAC4 |
| 3999 | GNWR | Genessee and Wyoming R.R. Co. | 7/1965-7/2005 | | NAKINA |
| 4000 | GNWR | Genessee and Wyoming R.R. Co. | 7/65-7/2000 | | NRHS |
