| 1 | GBF | North Air LLC | Callsign: Gicon, | KZ | AVCODES |
| 2 | GBFA | GIBSON FARMERS CO-OP | | | SCAC4 |
| 3 | GBFC | GBF ENTERPRISES INC | | | SCAC4 |
| 4 | GBFL | GLEIM BIO FUELS INC | | | SCAC4 |
| 5 | GBFO | GRANT BROTHERS FUEL OIL INC | | | SCAC4 |
| 6 | GBFV | GLOBAL FLEET SERVICE SA DE CV | | | SCAC4 |
| 7 | GBFW | GLOBAL FAIRWAYS INC | | | SCAC4 |
| 8 | GBFX | Green Bay Food Co. | 7/1935-7/1937; 1/1950-7/1965; eliminated 7/1966 | | NAKINA |
| 9 | GBFX | Green Bay Food Co. | 1/52-7/65; eliminated 7/66 | | NRHS |
| 10 | GBFX | GREEN BAY FOOD CO. | | | PWRC |
| 11 | GBFY | GLOBAL INFINITY TRANSPORT INC | | | SCAC4 |
