| 5701 | GTAV | G T TRANSPORTATION SERVICES INC | | | SCAC4 |
| 5702 | GTAW | GRANITE TOWN FARMS LTD | | | SCAC4 |
| 5703 | GTAX | CHS Inc. | added 4/2007 | | NAKINA |
| 5704 | GTAX | Cenex Harvest States Cooperatives | eliminated 4/2007 | | NAKINA |
| 5705 | GTAX | Harvest States Cooperatives | added 1/1984; 1/1994-7/2000; eliminated 10/2000; 7/2005 (not listed) | | NAKINA |
| 5706 | GTAX | Grain Terminal Association | added 7/1979; 1/1980; eliminated 1/1984 | | NAKINA |
| 5707 | GTAX | Grain Terminal Association | added 7/79; 1/80 | | NRHS |
| 5708 | GTAX | Harvest States Cooperatives | 1/94-7/2000; eliminated 10/2000 | | NRHS |
| 5709 | GTAX | CHS, INC. [CENEX HARVEST STATES COOPERATIVES; GRAIN TERMINAL ASSOCIATION] | | | PWRC |
| 5710 | GTAX | Harvest States Cooperative | | | RSRV |
| 5711 | GTAX | CHS INC | | | SCAC4 |
| 5712 | GTAX | Grain Terminal Association | | USA | TRAFFIC |
| 5713 | GTB | Gleis- und Tiefbau AG | | CH | TRAFFIC |
| 5714 | GTBA | GUITABEC INC | | | SCAC4 |
| 5715 | GTBC | GAN-TRANS BROKERAGE LLC | | | SCAC4 |
| 5716 | GTBE | GLS TRANSPORTATION INC | | | SCAC4 |
| 5717 | GTBH | GROEN TRUCKING INC | | | SCAC4 |
| 5718 | GTBI | GLOBAL TRANSPORT INC | | | SCAC4 |
| 5719 | GTBJ | GARLYN TRUCKING LTD | | | SCAC4 |
| 5720 | GTBK | GRT BROKERAGE | | | SCAC4 |
| 5721 | GTBM | GRAEBEL TAMPA BAY MOVERS INC | | | SCAC4 |
| 5722 | GTBO | G T BOLTON INC | | | SCAC4 |
| 5723 | GTBP | GTB TRUCKING LTD | | | SCAC4 |
| 5724 | GTBR | GREAT BEAR TRANSPORT LLC | | | SCAC4 |
| 5725 | GTBS | GIESELMAN TRUCKING LLC | | | SCAC4 |
| 5726 | GTBT | GWB TRUCKING | | | SCAC4 |
| 5727 | GTBV | G & M TRANSPORTATION LLC | | | SCAC4 |
| 5728 | GTBY | GST TRANSPORT SYSTEMS LP | | | SCAC4 |
| 5729 | GTC | Golden International Airlines | Callsign: Golden Wings, 20 December 2005. Ceased opertions in 2007. | TR | AVCODES |
| 5730 | GTC | Altin Havayolu Tasimaciligi Turizm Ve Ticaret | | | ICAO1 |
| 5731 | GTC | Gulf Transport | 1/1975-1/1980 | | NAKINA |
| 5732 | GTC | Gulf Transport | 1/75-1/80 | | NRHS |
| 5733 | GTC | GULF TRANSPORT | | | PWRC |
| 5734 | GTC | Gulf Transport | | | RSRV |
| 5735 | GTCC | G & T TRUCKING INC | | | SCAC4 |
| 5736 | GTCD | GOLD PRIORITY TRANSPORTATION | | | SCAC4 |
| 5737 | GTCE | G T CARRIERS LTD | | | SCAC4 |
| 5738 | GTCH | GREAT ALBERTA TRANSPORT LTD | | | SCAC4 |
| 5739 | GTCI | GUSKI TRUCKING CO INC | | | SCAC4 |
| 5740 | GTCK | GRAFF TRUCKING COMPANY, INC | | | SCAC1 |
| 5741 | GTCL | GERMANY TANK CONTAINER LEASING GMBH | | | PWRC |
| 5742 | GTCL | GENERAL TRANSPORT & CONSULTANTS INC | | | SCAC4 |
| 5743 | GTCN | GROSA TRUCKING | | | SCAC4 |
| 5744 | GTCR | GMT LOGISTICS LLC | | | SCAC4 |
| 5745 | GTCS | GREAT CANADIAN STAMP COMPANY INC, T | | | SCAC4 |
| 5746 | GTCU | GLOBAL TRADE CONTAINERS, LLC | | USA | BIC |
| 5747 | GTCV | GUTIERREZ TRUCKING (MX-596227) | | | SCAC4 |
| 5748 | GTCX | Westland Oil Co. | 1/1950 (not listed) | | NAKINA |
| 5749 | GTCX | WESTLAND OIL CO. | | | PWRC |
| 5750 | GTCX | GHOST TOWN & CAIRO | | | PWRC |
| 5751 | GTDB | G & T DISTRIBUTION INC | | | SCAC4 |
| 5752 | GTDD | GUELPH TOOL INC | | | SCAC4 |
| 5753 | GTDG | G T D LOGISTICS INC | | | SCAC4 |
| 5754 | GTDH | GOODNOW TRUCKING INC | | | SCAC4 |
| 5755 | GTDL | GATR DLIVERY | | | SCAC4 |
| 5756 | GTDM | GENUINE TRANSPORTATION INCORPORATED | | | SCAC4 |
| 5757 | GTDN | GN TRUCKING | | | SCAC4 |
| 5758 | GTDQ | GOOD TRANSPORT LLC | | | SCAC4 |
| 5759 | GTDR | GRAND TRAVERSE DINNER TRAIN, THE | | | SCAC4 |
| 5760 | GTDS | GTZ XPRESS INC | | | SCAC4 |
| 5761 | GTDT | GARRETT, DON TRUCKING INC | | | SCAC4 |
| 5762 | GTDV | GATLIN TRUCKING | | | SCAC4 |
| 5763 | GTDX | GRAND TRAVERSE DINNER TRAIN | | | PWRC |
| 5764 | GTE | Geraer Traditionseisenbahn UG | | DE | VKM |
| 5765 | GTEB | GIBSON TRUCK LINES LLC | | | SCAC4 |
| 5766 | GTEC | GOUGE TRANSPORTATION & EQUIPMENT CO | | | SCAC4 |
| 5767 | GTEF | G & T TRANSPORT LLC | | | SCAC4 |
| 5768 | GTEI | GAS-TEX ENERGY INC | | | SCAC4 |
| 5769 | GTEK | GH TRUCKING LLC | | | SCAC4 |
| 5770 | GTEL | GUERRA TRANSPORT | | | SCAC4 |
| 5771 | GTEM | GREISS MOBILE TRANSPORT INC | | | SCAC4 |
| 5772 | GTER | Grafton Terminal Railroad | | | RSRV |
| 5773 | GTER | GENERATION TRUCKING INC | | | SCAC4 |
| 5774 | GTEU | GENERAL TRANSPORT EQUIPMENT CO INC | | | PWRC |
| 5775 | GTEU | General Transport Equipment | | | RSRV |
| 5776 | GTEV | GLOBAL FREIGHT SERVICES LLC | | | SCAC4 |
| 5777 | GTEY | GADGET TRANSFER COMPANY INC | | | SCAC4 |
| 5778 | GTF | ELJ Aviation, Inc. | Callsign: Gator Flight, | USA | AVCODES |
| 5779 | GTF | Grup Transport Feroviar | | RO | TRAFFIC |
| 5780 | GTF | GRUP TRANSPORT FEROVIAR S.A. | | RO | VKM |
| 5781 | GTFF | GEMINI TRAFFIC SALES, INC | | | SCAC1 |
| 5782 | GTFF | GEMINI TRAFFIC SALES INC | | | SCAC4 |
| 5783 | GTFL | GB TANK LINE INC | | | SCAC4 |
| 5784 | GTFM | GETTELS FARM LLC | | | SCAC4 |
| 5785 | GTFO | GARY TRANSFER COMPANY INC | | | SCAC4 |
| 5786 | GTFP | GRINNELL TRANSPORT LLC | | | SCAC4 |
| 5787 | GTFQ | GLOBAL TRANS FREIGHT LLC | | | SCAC4 |
| 5788 | GTFT | GT FREIGHT SYSTEMS | | | SCAC4 |
| 5789 | GTFU | GT LOGISTICS (HK) CO., LIMITED | | PRC | BIC |
| 5790 | GTFV | GIVENS TRUCKING | | | SCAC4 |
| 5791 | GTGA | GATEWAY TRANSPORTATION OF GEORGIA I | | | SCAC4 |
| 5792 | GTGE | GODLEWSKI TRANSPORT & GOODS | | | SCAC4 |
| 5793 | GTGG | G T G LOGISTICS INC | | | SCAC4 |
| 5794 | GTGI | GUNDRUM TRUCKING INC | | | SCAC4 |
| 5795 | GTGK | GORDON TRUCKING INC (NISTEVO DEDICA | | | SCAC4 |
| 5796 | GTGM | GERNON TRANSPORTATION | | | SCAC4 |
| 5797 | GTGN | GT LOGISTICS | | | SCAC4 |
| 5798 | GTGP | GOOD TO GO TRANSPORTATION | | | SCAC4 |
| 5799 | GTGQ | GLOBAL TRANS INC | | | SCAC4 |
| 5800 | GTGR | GTG TRANSPORTATION | | | SCAC4 |
