| 1 | GFC | Gail Force Express | Callsign: Gail Force, | USA | AVCODES |
| 2 | GFC | Gulf Coast Aviation | Callsign: Gulf Coast, | USA | AVCODES |
| 3 | GFC | Gail Force Express | | | ICAO1 |
| 4 | GFC | Grand Falls Central Ry. Co., Ltd. | 1/1975; eliminated 10/1977; 1/1980-7/2005 | | NAKINA |
| 5 | GFC | Grand Falls Central Ry. Co., Ltd. | 1/75-7/2000 | | NRHS |
| 6 | GFC | GRAND FALLS CENTRAL RWY. | | | PWRC |
| 7 | GFC | Grand Falls Central Railway | | | RSRV |
| 8 | GFCD | GF CONSOLIDATORS LIMITED | | | SCAC4 |
| 9 | GFCG | G F C CARTAGE LLC | | | SCAC4 |
| 10 | GFCH | GEM FARMS AND CUSTOM HAULING LTD | | | SCAC4 |
| 11 | GFCL | GULF AGENCY COMPANY LIMITED | | | SCAC4 |
| 12 | GFCM | GUTIERREZ FLORES, CLAUDIA MELINA | | | SCAC4 |
| 13 | GFCN | GFC TRANSPORT INC | | | SCAC4 |
| 14 | GFCO | GFC TRANSPORTATION INC | | | SCAC4 |
| 15 | GFCS | GOULD MANUFACTURING | | | SCAC4 |
| 16 | GFCT | GULICK FREIGHT SERVICE LOGISTICS IN | | | SCAC4 |
| 17 | GFCU | GULF FIRST CONTAINER LINE (UK) LTD | | UAE | BIC |
| 18 | GFCV | GULF COAST VACUUM SERVICE INC | | | SCAC4 |
| 19 | GFCW | GEORGIA FLORIDA CONTACTING INC | | | SCAC4 |
| 20 | GFCX | Glens Falls Lehigh Cement Co. | 7/2005 (not listed) | | NAKINA |
| 21 | GFCX | Merchants Despatch Transportation Corp. | added 10/1960; 4/1961-1/1980; eliminated 1/1982 | | NAKINA |
| 22 | GFCX | Merchants Despatch Transportation Corp. | added 10/60; 4/61-1/80; eliminated 1/82 | | NRHS |
| 23 | GFCX | *MERCHANTS DESPATCH TRANSPORTATION CORP. | | | PWRC |
| 24 | GFCX | +LEHIGH NORTHEAST CEMENT CO. [GLENS FALLS LEHIGH CEMENT CO.] | | | PWRC |
| 25 | GFCX | Glens Falls Lehigh Cement | | | RSRV |
| 26 | GFCX | LEHIGH NORTHEAST CEMENT COMPANY | | | SCAC4 |
| 27 | GFCZ | GENERAL FOODS CORPORATION | | | PWRC |
| 28 | GFCZ | General Foods Corporation | | | RSRV |
| 29 | GFCZ | GENERAL FOODS CORPORATION | | | SCAC4 |
