| 1 | GCF | Aeronor | Callsign: Aerocarto, | E | AVCODES |
| 2 | GCF | Aeronor | | | ICAO1 |
| 3 | GCF | Generale Construzioni Ferroviarie | | I | TRAFFIC |
| 4 | GCF | G.C.F. Generale Costruzioni Ferroviarie | | IT | VKM |
| 5 | GCFA | GRANT, CHARLES FARMS | | | SCAC4 |
| 6 | GCFB | GLEANERS COMMUNITY FOOD BANK OF SOU | | | SCAC4 |
| 7 | GCFC | G-C-F TRANSPORT COOPERATIVE ASSOCIA | | | SCAC4 |
| 8 | GCFD | GRAND COASTAL FORWARDING | | | SCAC4 |
| 9 | GCFG | GOLD CARGO FREIGHT CORP | | | SCAC4 |
| 10 | GCFH | GOTO CALIFORNIA INC | | | SCAC4 |
| 11 | GCFK | GRANITE CREEK FARM | | | SCAC4 |
| 12 | GCFM | GLI-CO FARMS | | | SCAC4 |
| 13 | GCFN | GOWELLS CASH FUEL INC | | | SCAC4 |
| 14 | GCFO | GRANUM COLONY FARMING CO LTD | | | SCAC4 |
| 15 | GCFQ | GULF COAST FREIGHT INC | | | SCAC4 |
| 16 | GCFX | Alsthon Canada Inc. — Transport | 7/2000-7/2005 (not listed) | | NAKINA |
| 17 | GCFX | Alsthon Canada Inc. -- Transport | Jul-00 | | NRHS |
| 18 | GCFX | ALSTOM CANADA INCORPORATED - TRANSPORT | | | PWRC |
| 19 | GCFX | Alstom Canada Transport | | | RSRV |
| 20 | GCFX | ALSTHON CANADA INC-TRANSPORT | | | SCAC4 |
| 21 | GCFX | Alstom Canada Incorporated | | CDN | TRAFFIC |
