| 1 | HEA | Heliavia-Transporte Aereo, Lda | Callsign: Heliavia, | P | AVCODES |
| 2 | HEA | The Hawaii Express | IATA: LP, Ceased operations | USA | AVCODES |
| 3 | HEA | Heliavia-Transporte Aereo | | | ICAO1 |
| 4 | HEAA | HEART TRANSPORTATION | | | SCAC4 |
| 5 | HEAB | HEADRUSH | | | SCAC4 |
| 6 | HEAC | HEGGELUND, DANNIE | | | SCAC4 |
| 7 | HEAD | HEAD LINES (MCLEAN KENNEDY LTD) | | | PWRC |
| 8 | HEAD | HUBTRUCKER | | | SCAC4 |
| 9 | HEAG | Hessische Elektrizitäts AG | City: Darmstadt | D | TRAFFIC |
| 10 | HEAGB | HEAG mobiBus | | D | TRAFFIC |
| 11 | HEAH | HARIBON EXPRESS LLC | | | SCAC4 |
| 12 | HEAI | HISTORICAL EQUIPMENT ASSOCIATION | | | PWRC |
| 13 | HEAO | HEARN, DON & SONS INC | | | SCAC4 |
| 14 | HEAP | HERNANDEZ, SAM TRUCKING | | | SCAC4 |
| 15 | HEAQ | HEATH OIL CO INC | | | SCAC4 |
| 16 | HEAR | HEART TRANSPORTATION U S INC | | | SCAC4 |
| 17 | HEAX | Huntsman Ethyleneamines, Ltd. | added 4/2003; 7/2005 | | NAKINA |
| 18 | HEAX | HUNTSMAN ETHYLENEAMINES, LTD. | | | PWRC |
| 19 | HEAX | HUNTSMAN ETHYLENEAMINES LTD | | | SCAC4 |
| 20 | HEAY | HEALDTON OIL CO INC | | | SCAC4 |
