| 1 | HDS | UEF Historischer Damfschnellzug e.V | | DE | VKM |
| 2 | HDSA | HERITAGE DEDICATED SERVICES INC | | | SCAC4 |
| 3 | HDSB | HDS EXPRESS | | | SCAC4 |
| 4 | HDSC | HENDERSCHIED | | | SCAC4 |
| 5 | HDSD | HACKBARTH DELIVERY SERVICE INC | | | SCAC4 |
| 6 | HDSF | HUMPTY DUMPTY SNACK FOODS USA INC | | | SCAC4 |
| 7 | HDSG | HARRIS DATA STORAGE INC | | | SCAC4 |
| 8 | HDSH | HD SHIPPING LTD | | | SCAC4 |
| 9 | HdSJ | Härnösand - Sollefteå Järnväg | 1893 - 1932 | S | svenska-lok.se |
| 10 | HDSK | H-D-SOUCY INC | | | SCAC4 |
| 11 | HDSL | HENDERSON LOGISTIC | | | SCAC4 |
| 12 | HDSO | HARDISON TRANSPORTATION LLC | | | SCAC4 |
| 13 | HDSP | HYLAND, SEAN MOTORSPORT | | | SCAC4 |
| 14 | HDSS | HDS EXPRESS LINES | | | SCAC4 |
| 15 | HDSU | HAYS DISTRIBUTION SERVICES LTD | | | SCAC4 |
| 16 | HDSX | The CIT Group/Capital Finance, Inc. | added 10/2003; 7/2005 | | NAKINA |
| 17 | HDSX | RailAmerica Equipment Corp. | added 10/1996; 7/2000; eliminated 1/2003 | | NAKINA |
| 18 | HDSX | Huron Distribution Services/Rail America Equipment Corp. | added 7/1996; eliminated 10/1996 | | NAKINA |
| 19 | HDSX | Huron Distribution Services | 1/1994 (not listed) | | NAKINA |
| 20 | HDSX | H.D. Schrier | added 7/1961; 7/1965; eliminated 7/1966; added 4/1967; 4/1970; eliminated 10/1974 | | NAKINA |
| 21 | HDSX | H.D. Schrier | 7/65; eliminated 7/66; added 4/67; 4/70; eliminated 10/74 | | NRHS |
| 22 | HDSX | Huron Distribution Services | Jan-94 | | NRHS |
| 23 | HDSX | Huron Distribution Services/Rail America Equipment Corp. | added 7/96; eliminated 10/96 | | NRHS |
| 24 | HDSX | RailAmerica Equipment Corp. | added 10/96; 7/2000 | | NRHS |
| 25 | HDSX | *H. D. SCHRIER | | | PWRC |
| 26 | HDSX | *HURON DISTRIBUTION SERVICES | | | PWRC |
| 27 | HDSX | +THE CIT GROUP/CAPITAL FINANCE [RAIL AMERICA EQUIPMENT CORP.] | | | PWRC |
| 28 | HDSX | RailAmerica Equipment Corporation | | | RSRV |
| 29 | HDSX | CIT GROUP/CAPITAL FINANCE INC, THE | | | SCAC4 |
| 30 | HDSY | HUNTE DELIVERY SYSTEM INC | | | SCAC4 |
