| 1 | JAG | Jetag AG | Callsign: Jetag, | CH | AVCODES |
| 2 | JAG | Jetalliance Flugbetriebs AG | Callsign: Jetalliance, Founded in 1996. Ceased operations in 2013. ICAO designator changed from JAF | A | AVCODES |
| 3 | JAG | Jetair, Luftfahrt-Verwaltungsgellschaft | IATA: JA, Callsign: Jetair, | D | AVCODES |
| 4 | JAG | Jetalliance | | | ICAO1 |
| 5 | JAGB | J A G TRANSPORTATION | | | SCAC4 |
| 6 | JAGC | JAG FUELS COMPANY INC | | | SCAC4 |
| 7 | JAGF | J A G FREIGHT SYSTEMS LLC | | | SCAC4 |
| 8 | JAGH | JAG LOGISTICS LLC | | | SCAC4 |
| 9 | JAGJ | JAG TRANSPORT INC | | | SCAC4 |
| 10 | JAGM | JAGUAR MFG | | | SCAC4 |
| 11 | JAGR | JAG TRUCKING INC | | | SCAC4 |
| 12 | JAGX | J.A. Garfield | added 7/1953; 7/1954-10/1966; eliminated 7/1967 | | NAKINA |
| 13 | JAGX | J.A. Garfield | 10/57-10/66; eliminated 7/67 | | NRHS |
| 14 | JAGX | J.A. GARFIELD | | | PWRC |
| 15 | JAGY | J A GARVEY TRANSPTN INC | | | PWRC |
