| 1 | ITI | Itapemirim, Transportes Aereos Regionais, S.A. | Callsign: Itapemirim, | BR | AVCODES |
| 2 | ITI | Island Transvoyager, Inc. | IATA: T6, Callsign: Trans Voyager, Founded in 2002. Name changed to AirSWIFT Transport, Inc. ICAO designator changed to ATX. ICAO callsign changed to Airswift. w.e.f. October 2015. | RP | AVCODES |
| 3 | ITI | iNTAIRLINE | Callsign: Intairline, Subsidiary of the FMA group. | F | AVCODES |
| 4 | ITIC | INTEGRITY TENNESSEE INC | | | SCAC4 |
| 5 | ITIJ | IVINS TRANSPORTATION INC | | | SCAC4 |
| 6 | ITIL | INTEGRATED TERMINALS | | | SCAC4 |
| 7 | ITIM | ITALINTERIORS | | | SCAC4 |
| 8 | ITIQ | INTERCARGO TRANSPORT INC | | | SCAC4 |
| 9 | ITIR | INTEGRITY TRANSPORT INC | | | SCAC4 |
| 10 | ITIS | ITA TRANSPORTATION INC | | | SCAC4 |
| 11 | ITIT | IMEX TRANSPORT INC | | | SCAC4 |
| 12 | ITIU | INTERNATIONAL TRANSCHEM INC. | | | PWRC |
| 13 | ITIU | International Transchem | | | RSRV |
| 14 | ITIV | INNOVA TRANS INC | | | SCAC4 |
| 15 | ITIX | Intermodal Technologies Inc. | 1/1994-7/2000 (not listed) | | NAKINA |
| 16 | ITIX | Intermodal Technologies Inc. | 1/94-7/2000 | | NRHS |
| 17 | ITIX | INTERMODAL TECHNOLOGIES, INC. | | | PWRC |
| 18 | ITIX | Intermodal Technologies | | | RSRV |
| 19 | ITIY | IVY TRANSPORT INC | | | SCAC4 |
