| Carrier Code | Carrier Name |
| HMKU | HOLLAND MAAS SHIPPING BV |
| HMMI | HILLMORE MARITIME INC |
| HMML | HERON MARITIME S A OF MONROVIA-LIBERIA |
| HMRV | HENRY MARINE SERVICE INC |
| HNDT | HENDREN TOW-BOAT CO INC |
| HNSA | HANSA MARE REEDEREI GMBH & CO KG |
| HNTG | HANSON TOWING COMPANY |
| HNVG | HILLCREST NAVIGATION CORPORATION |
| HNYB | HONEYBERRY COMPANY INC |
| HOCU | HOEGH CONTAINER LINES |
| HOEG | HOEGH AUTOLINERS K.K. |
| HOEU | HOECHST AKTIENGESELLSCHAFT |
| HOKU | HOKAIR SHIPPING AGENCY |
| HOLU | HOEGH LINES AS |
| HONU | HOULTS LTD |
