| Carrier Code | Carrier Name |
| HSCY | HASLER & COMPANY INC |
| HSDU | HULS AG |
| HSKU | HAFSKIP LTD LINE |
| HSLT | HOSLETT, GEORGE SIGNS INC |
| HSSM | HASSERODT MARINE AGENCY LTD |
| HTKU | HETAKO INDUSTRIE CHIMIQUE S A |
| HTML | HATSU MARINE LIMITED (EVERGREEN JAPAN CORPORATION) |
| HTMU | HANSEN & TIDEMANN INC |
| HTOG | HANOVER TOWING INC |
| HTPE | HOST, T PARKER INC |
| HTPL | HOST, T PARKER OF MARYLAND INC |
| HTSU | HIGH TECH TRANSPORT LTD |
| HTUG | HAYS TUG & LAUNCH SERVICE INC |
| HUAU | HOEGH/UGLAND AUTO LINERS |
| HVER | HOVER TRANSPORT INC |
