| Carrier Code | Carrier Name |
| HLHU | HORN LINIE |
| HLKI | HALKI SHIPPING CORPORATION |
| HLLU | HELLENIC LINES LIMITED |
| HLNU | HALLIBURTON COMPANY GERMANY/HOLLAND BRANCH |
| HLOI | HELIOS INVESTMENT CORPORATION |
| HLPC | HELLESPONT CAPITOL SHIPPING CORPORATION |
| HLPG | HELLESPONT GRAND SHIPPING CORPORATION |
| HLPH | HELLESPONT ORPHEUM SHIPPING CORPORATION |
| HLPM | HELLESPONT PARAMOUNT SHIPPING CORPORATION |
| HLPO | HELLESPONT EMBASSY SHIPPING CORPORATION |
| HLPP | HELLESPONT PARADISE SHIPPING CORPORATION |
| HLQS | HULLQUIST TERMINALS INC |
| HLSU | HALLIBURTON LTD |
| HLVA | HILTVEIT ASSOCIATES INC |
| HLWT | HOLLYWOOD MARINE INCORPORATED |
