| 1 | HLT | Heli Transport SA | IATA: OI, Callsign: Heli Transport, | F | AVCODES |
| 2 | HLT | Helitafe | | | ICAO1 |
| 3 | HLT | Hallandstrafiken AB | | SE | VKM |
| 4 | HLTA | HOLT OIL COMPANY INC | | | SCAC4 |
| 5 | HLTC | HI-LITE TRUCK ACCESSORIES LTD | | | SCAC4 |
| 6 | HLTE | HOTLOAD TRANSPORTATION SERVICES LLC | | | SCAC4 |
| 7 | HLTF | HAMMER LANE TRUCKING | | | SCAC4 |
| 8 | HLTG | HARNETT, L T TRUCKING INC | | | SCAC4 |
| 9 | HLTJ | HLT LIMITED | | | SCAC4 |
| 10 | HLTK | H & L TRANSPORT | | | SCAC4 |
| 11 | HLTL | HOLT LOGISTICS CORP | | | SCAC4 |
| 12 | HLTM | HILTON OIL CO INC | | | SCAC4 |
| 13 | HLTN | HOLTON TRUCK LINE, INC | | | SCAC1 |
| 14 | HLTN | HLT SERVICE GROUP INC | | | SCAC4 |
| 15 | HLTO | HILLTOP TRANSPORTATION | | | SCAC4 |
| 16 | HLTP | HILLTOP OIL CO | | | SCAC4 |
| 17 | HLTQ | HOLT, STEVE CONCESSIONS | | | SCAC4 |
| 18 | HLTR | HOMELAND TRANSPORT INC | | | SCAC4 |
| 19 | HLTU | TRANS DISTANCE LINE LTD | | HK | BIC |
| 20 | HLTU | HONG XIN CHONK KONG DEVELOPMENT COM | | | SCAC4 |
| 21 | HLTV | HILLS TRUCK SERVICE | | | SCAC4 |
| 22 | HLTW | HIGHER-LEVELZ TRUCKING INC | | | SCAC4 |
| 23 | HLTX | INEOS Olefins & Polymers USA, a Division of INEOS USA LLC | added 7/2008 | | NAKINA |
| 24 | HLTX | B P Solvay Polyethylene North America | added 4/2004; 7/2005; eliminated 7/2008 | | NAKINA |
| 25 | HLTX | BP Amoco Chemical Co. | added 4/2002; eliminated 4/2004 | | NAKINA |
| 26 | HLTX | *BP SOLVAY POLYETHYLENE NORTH AMERICA {BP AMOCO; AMOCO OIL COMPANY] | | | PWRC |
| 27 | HLTX | +INEOS OLEFINS & POLYMERS USA, DIV. INEOS USA LLC | | | PWRC |
| 28 | HLTX | Amoco Oil | | | RSRV |
| 29 | HLTX | INEOS OLEFINS & POLYMERS USA A DIVI | | | SCAC4 |
| 30 | HLTY | HALTER, RANDY TRUCKING INC | | | SCAC4 |
| 31 | HLTZ | HOLLIDAY TYLER | | | PWRC |
