| 1 | HD | Holger Dietz | DE | VKM | |
| 2 | HDA | Dragonair, Hong Kong Dragon Airlines | IATA: KA | ICAO1 | |
| 3 | HDA | Dragonair | HK | TRAFFIC | |
| 4 | HDAE | HEIFETZ, DAVID | SCAC4 | ||
| 5 | HDAI | HERNANDEZ DIAZ, ANTONIO MARTIN G | SCAC4 | ||
| 6 | HDAV | H A D D TRUCKING LLC | SCAC4 | ||
| 7 | HDBA | HALF DIAMOND EXPRESS LTD | SCAC4 | ||
| 8 | HDBB | HILL DE BAJA CALIFORNIA | SCAC4 | ||
| 9 | HDBE | HILDEBRAND, JIM | SCAC4 | ||
| 10 | HDBG | HYDER, B & A TRUCKING CO INC | SCAC4 | ||
| 11 | HDBQ | HYDE DRIFT BOATS INCORPORATED | SCAC4 | ||
| 12 | HDBS | HOUND DOG BUS | SCAC4 | ||
| 13 | HDBX | Blery Oil Co. | 8/1920 | NAKINA | |
| 14 | HDBX | BLERY OIL CO. | PWRC | ||
| 15 | HDC | Helcopteros De Cataluna | ICAO1 | ||
| 16 | HDCM | HURTADO CRUZ, MIGUEL | SCAC4 | ||
| 17 | HDCN | HUDD TRANSPORTATION | SCAC4 | ||
| 18 | HDCO | H DANTAS COMERCIO NAVEGACAO E INDUS | SCAC4 | ||
| 19 | HDCR | HILLSDALE COUNTY RAILWAY | PWRC | ||
| 20 | HDCR | HAPPY D CORPORATION | SCAC4 | ||
| 21 | HDCW | HOLMAN DISTRIBUTION CENTER OF WASHINGTON, INC | SCAC1 | ||
| 22 | HDCW | HOLMAN TRANSPORTATION LLC | SCAC4 | ||
| 23 | HDCX | The Hull Corp. | 1/1994 (not listed) | NAKINA | |
| 24 | HDCX | The Hull Corp. | Jan-94 | NRHS | |
| 25 | HDCX | THE HULL CORPORATION | PWRC | ||
| 26 | HDDA | HERNDON, D A INC | SCAC4 | ||
| 27 | HDDC | HENRY, DAN DISTRIBUTING CO | SCAC4 | ||
| 28 | HDDD | HADDAD APPAREL GROUP LTD | SCAC4 | ||
| 29 | HDDE | HENRIE, DANIEL DENIS | SCAC4 | ||
| 30 | HDDH | HADDON HOUSE FOOD PRODUCTS INC | SCAC4 | ||
| 31 | HDDR | HUDD TRANSPORTATION | SCAC4 | ||
| 32 | HDDS | HAMMER DOWN DELIVERY SERVICES INC | SCAC4 | ||
| 33 | HDDW | HOOD, DAVID W TRUCKING INC | SCAC4 | ||
| 34 | HDDY | HIRD, DWAYNE | SCAC4 | ||
| 35 | HDE | HDE, INC. | PWRC | ||
| 36 | HDEE | HARD DRIVE EXPRESS INC | SCAC4 | ||
| 37 | HDEK | HARTMAN, D E TRUCKING INC | SCAC4 | ||
| 38 | HDEN | HARP, DARRELL ENTERPRISES INC | SCAC4 | ||
| 39 | HDEO | HOLDER, R D OIL CO INC | SCAC4 | ||
| 40 | HDER | HARDERS TRUCKING LTD | SCAC4 | ||
| 41 | HDES | HERRERA DESIGN | SCAC4 | ||
| 42 | HDFC | HOWARD FARMS INC | SCAC4 | ||
| 43 | HDFI | HAMMONDS, D F INC | SCAC4 | ||
| 44 | HDFL | HIGH DEFINITION LOGISTICS LLC | SCAC4 | ||
| 45 | HDFN | HI-DON FARMS INC | SCAC4 | ||
| 46 | HDFS | HIDDEN SPRING FARM/FAIRCLOUGH GAS I | SCAC4 | ||
| 47 | HDFU | HUADONG SHIPPING CORPORATION | SCAC4 | ||
| 48 | HDFW | HOOD TRANSPORTATION (TRUCKLOAD DIVI | SCAC4 | ||
| 49 | HDGF | HEDIGERS FUEL OIL | SCAC4 | ||
| 50 | HDGH | HOME DELIVERY GROUP LLC, THE | SCAC4 | ||
| 51 | HDGJ | HORN, DAVE G | SCAC4 | ||
| 52 | HDGL | HYUNDAI GLOVIS CO LTD | SCAC4 | ||
| 53 | HDGM | HODGES OIL CO INC | SCAC4 | ||
| 54 | HDGR | HODGE, ROBERT TRUCKING LLC | SCAC4 | ||
| 55 | HDGX | Henry D. Gee | 7/1935-4/1938 | NAKINA | |
| 56 | HDGX | Henry D. Gee | Apr-38 | NRHS | |
| 57 | HDGX | H.D. GEE | PWRC | ||
| 58 | HDHA | HAMMER DOWN HAULIN INC | SCAC4 | ||
| 59 | HDHS | HAMMER DOWN HOT SHOT & PILOT (DIV O | SCAC4 | ||
| 60 | HDI | Hoteles Dinamicos | ICAO1 | ||
| 61 | HDIB | HORIZON DRILLING INC | SCAC4 | ||
| 62 | HDII | HARD DRIVER INC | SCAC4 | ||
| 63 | HDIK | HENDRIKS, ANDREW & SONS GREENHOUSES | SCAC4 | ||
| 64 | HDIR | HEP DIRECT INC | SCAC4 | ||
| 65 | HDIS | HAROLD DISTRIBUTION INC | SCAC4 | ||
| 66 | HDIV | HEROUX DEVTEK INC | SCAC4 | ||
| 67 | HDIW | HORIZON GEMI ISLETMECILIGI SANAYI V | SCAC4 | ||
| 68 | HDJI | HARLOW, D J TRUCKING INC | SCAC4 | ||
| 69 | HDJK | HAMMONDS, J A TRUCKING INC | SCAC4 | ||
| 70 | HDJO | HERNANDEZ DAVILA, JESUS ALEJANDRO | SCAC4 | ||
| 71 | HDJT | HOWARD, J T S INC | SCAC4 | ||
| 72 | HDKE | HANDLEY, KEVIN E TRUCKING | SCAC4 | ||
| 73 | HDKG | HOOD TRUCKING | SCAC4 | ||
| 74 | HDKH | HELDT TRUCKING LLC | SCAC4 | ||
| 75 | HDKI | HENDRIK ENTING | SCAC4 | ||
| 76 | HDKJ | HEIDEL TRUCKING | SCAC4 | ||
| 77 | HDKK | HYUN DAE TRUCKING CO INC | SCAC4 | ||
| 78 | HDKL | HYDRATREK LLC | SCAC4 | ||
| 79 | HDKM | HUVALS, DAVID TRUCKING COMPANY INC | SCAC4 | ||
| 80 | HDKN | HOUDEK ENTERPRISES INC | SCAC4 | ||
| 81 | HDKQ | HEADRACK INC | SCAC4 | ||
| 82 | HDKR | HANDRICK TRUCKING LLC | SCAC4 | ||
| 83 | HDKW | HISAR DENIZCILIK TICARET VE SANAYI | SCAC4 | ||
| 84 | HDL | Hastings Diesels Limited | UK | VKM | |
| 85 | HDLA | HIRSCH DEVELOPMENTS LTD | SCAC4 | ||
| 86 | HDLC | HENDRIX AND DAIL INC | SCAC4 | ||
| 87 | HDLE | HASKELL, DUSTY L | SCAC4 | ||
| 88 | HDLG | HEARTLAND LOGISTICS LLC | SCAC4 | ||
| 89 | HDLK | H D L ENTERPRISES INC | SCAC4 | ||
| 90 | HDLM | HOOFBEATS DISTRIBUTION LIMITED | SCAC4 | ||
| 91 | HDLO | HENDEL'S INCORPORATED | SCAC4 | ||
| 92 | HDLP | HAPPY DAYS LEISURE PRODUCTS LIMITED | SCAC4 | ||
| 93 | HDLR | HIDALGO ROCHIN, MARCOS ABRAHAM | SCAC4 | ||
| 94 | HDLT | H D L TRANSPORT INC | SCAC4 | ||
| 95 | HDLU | SAFMARINE CONTAINER LINES NV | SCAC4 | ||
| 96 | HDLX | Helm Diamond Rail Leasing | added 10/2008 | NAKINA | |
| 97 | HDLX | HELM DIAMOND RAIL LEASING | PWRC | ||
| 98 | HDM | Hudson & Manhattan | 1/1975-1/1980 | NAKINA | |
| 99 | HDM | Hudson & Manhattan | 1/75-1/80 | NRHS | |
| 100 | HDM | HUDSON & MANHATTAN | PWRC |