| 1 | IKA | Air Company Itek-Air Ltd. | IATA: GI, Callsign: Itek-Air, IATA Prefix: 420, Founded in 1999. Ceased operations in 2010. | KS | AVCODES |
| 2 | IKA | Tradewinds Airways Ltd. | IATA: IK, Callsign: Tradewinds, Ceased operatons 28 Septmber 1990. IATA designator changed from VS | GB | AVCODES |
| 3 | IKA | Gorkha Airlines | IATA: G1, IATA code taken from website not confirmed by IATA | NEP | AVCODES |
| 4 | IKA | Gorkha Airlines | IATA: G1 | | ICAO1 |
| 5 | IKA | Itek Air | IATA: GI | | ICAO1 |
| 6 | IKAG | Iserlohner Kreisbahn AG | City: Iserlohn | D | TRAFFIC |
| 7 | IKAR | IKARUS MARINE LTD | | | SCAC4 |
| 8 | IKASA | Ikasa Railway | Railway operation cancelled, now a bus company. | J | TRAFFIC |
| 9 | IKAT | ICAT LOGISTICS INC | | | SCAC4 |
