| 1 | ISV | Islena de Inversiones S.A. de C.V. d/b/a Islena Airlines | IATA: 1H, IATA designator changed to WC. Founded in 1981. Commenced operations on 31 March 1981. | HN | AVCODES |
| 2 | ISV | Islena de Inversiones S.A. de C.V. d/b/a Islena Airlines | IATA: WC, IATA Prefix: 506, Designator WC reinstated by IATA. Founded in 1981. Name changed to Avianca Honduras. | HN | AVCODES |
| 3 | ISV | Avianca Honduras | IATA: WC, IATA Prefix: 506, Designator WC reinstated by IATA. Founded in 1981. Name changed from Islena de Inversiones S.A. de C.V. d/b/a Islena Airlines | HN | AVCODES |
| 4 | ISV | Islena De Inversiones | IATA: WC | | ICAO1 |
| 5 | ISVC | INTERNATIONAL SERVICE CORPORATION | | | SCAC4 |
| 6 | ISVI | INTERMODAL SERVICES, INC. | | | PWRC |
| 7 | ISVI | INDUSTRIAL SERVICES LTD | | | SCAC4 |
| 8 | ISVL | ISLAND VENTURES LTD | | | SCAC4 |
| 9 | ISVM | INDUSTRIAL SERVICES MGT INC | | | SCAC4 |
| 10 | ISVS | INTERNATIONAL SEAVAN SYSTEMS | | | SCAC4 |
| 11 | ISVT | INTERSTATE VENEER TRANSPORT INC | | | SCAC4 |
