| 1 | HB | Hirtshalsbanen | 1925 - 1945 | DK | jernbanen.dk |
| 2 | HB | Hampton & Branchville R.R. Co. | 1/1975-1/1994; eliminated 7/1995; 7/2000-7/2005 | NAKINA | |
| 3 | HB | Hampton & Branchville R.R. Co. | 1/75-1/94; eliminated 7/95; 7/2000 | NRHS | |
| 4 | HB | HAMPTON & BRANCHVILLE RAILROAD COMPANY, INC | PWRC | ||
| 5 | HB | Hampton and Branchville Railroad | RSRV | ||
| 6 | HB | Hirtshalsbanen | 1925 - 1945 | DK | TRAFFIC |
| 7 | HB | Hellertal-Bahn GmbH | DE | VKM | |
| 8 | HB&T | Huntington & Broad Top Mountain R.R. & Coal Co. | Jan-52 | NRHS | |
| 9 | HBA | Trail Lake Flying Service | ICAO1 | ||
| 10 | HBA | Hafenbetrieb Aken GmbH | DE | VKM | |
| 11 | HBAE | HITCHEN, B T TRUCKING | SCAC4 | ||
| 12 | HBAI | H BAR N INC | SCAC4 | ||
| 13 | HBAM | HILDEBRAND, A & M LTD | SCAC4 | ||
| 14 | HBAR | HUBBARD TRANSPORT LLC | SCAC4 | ||
| 15 | HBAU | Hartung-Bau GmbH & Co. KG | DE | VKM | |
| 16 | HBAW | HELICON BU | SCAC4 | ||
| 17 | HBAX | Hirsch Bros. & Co. | 4/1947-4/1961; eliminated 7/1963 | NAKINA | |
| 18 | HBAX | Hirsch Bros. & Co., Inc. | 7/1935 | NAKINA | |
| 19 | HBAX | Hirsch Bros. & Co. | 1/52-4/61; eliminated 7/63 | NRHS | |
| 20 | HBAX | HIRSCH BROS. & CO. | PWRC | ||
| 21 | HBB | Hansebahn Bremen GmbH | Bremen | D | privat-bahn.de |
| 22 | HBB | City: Halberstadt | D | TRAFFIC | |
| 23 | HBB | Hansebahn Bremen | DE | VKM | |
| 24 | HBBE | HB GLOBAL LOGISTICS LLC | SCAC4 | ||
| 25 | HBBK | HARBOR INTERMODAL TRANSPORT INC | SCAC4 | ||
| 26 | HBBL | HABIB TRUCK LINES | SCAC4 | ||
| 27 | HBBR | HESSELBACHER BROS | SCAC1 | ||
| 28 | HBC | Haitian Aviation Line | ICAO1 | ||
| 29 | HBC | HAMM BREWING COMPANY | PWRC | ||
| 30 | HBC | Hamm Brewing Company | USA | TRAFFIC | |
| 31 | HBCA | HARRIS BAKING COMPANY | SCAC4 | ||
| 32 | HBCB | H & B CONSTRUCTION | SCAC4 | ||
| 33 | HBCL | HARBOR CITY OIL CO INC | SCAC4 | ||
| 34 | HBCO | HARRELL, C INC | SCAC4 | ||
| 35 | HBCT | HAPSBURG CORPORATION | SCAC4 | ||
| 36 | HBCU | HOLDERCHEM BUILDING CHEMICALS S A L | SCAC4 | ||
| 37 | HBCY | HERMANS BUILDING CENTRES | SCAC4 | ||
| 38 | HBDC | H & B DISHER COURIER (WOON | SCAC4 | ||
| 39 | HBDF | HUBERDALE FARMS | SCAC4 | ||
| 40 | HBDL | HERRBOLDT TRUCKING LLC | SCAC4 | ||
| 41 | HBDN | HOBDEN, KEITH | SCAC4 | ||
| 42 | HBDS | HARBOR DISPATCH TRANSPORT INC | SCAC4 | ||
| 43 | HBDV | HARBOR DIVISION | SCAC4 | ||
| 44 | HBDW | HIGHBOURNE TRADING LTD | SCAC4 | ||
| 45 | HBE | Halberstadt-Blankenburger Eisenbahn | D | TRAFFIC | |
| 46 | HBE | Verein zur Erhaltung der Hespertalbahn e.V. | DE | VKM | |
| 47 | HBEC | HOBBS ENTERPRISES INC | SCAC4 | ||
| 48 | HBEE | HB ENTERPRISES | SCAC4 | ||
| 49 | HBEI | HOLMES BROTHER ENTERPRISES INC | SCAC4 | ||
| 50 | HBEK | HORNBECK TRANSPORT LLC | SCAC4 | ||
| 51 | HBEL | HABEL TRANSPORTATION INC | SCAC4 | ||
| 52 | HBEN | HOFFMAN, BOB ENTERPRISES | SCAC4 | ||
| 53 | HBER | HUBER, ARLO & SON INC | SCAC4 | ||
| 54 | HBES | HUDDLESTON&BISHOP ENTERPRISES, INC | SCAC1 | ||
| 55 | HBET | HB EXPRESS INC | SCAC4 | ||
| 56 | HBEY | H & B EQUIPMENT COMPANY INC | SCAC4 | ||
| 57 | HBFA | H B FARMS (MX-240006) | SCAC4 | ||
| 58 | HBFB | HILES BROS FUEL CO INC | SCAC4 | ||
| 59 | HBFE | HR & B FEDERATED EXPRESS TRANSCORP | SCAC4 | ||
| 60 | HBFG | HERBERT FEED & GRAIN CO | SCAC4 | ||
| 61 | HBFL | HERNANDEZ BLANCAS, FELIX | SCAC4 | ||
| 62 | HBFO | HARBOR FUEL OIL CORP | SCAC4 | ||
| 63 | HBFT | HARMAN BROTHERS FREIGHT LTD | SCAC4 | ||
| 64 | HBFY | HESS BROTHERS FRUIT COMPANY | SCAC4 | ||
| 65 | HBG | Hafenbetriebsgesellschaft mbH | Hildesheim | D | privat-bahn.de |
| 66 | HBGI | HUB GROUP INC | SCAC4 | ||
| 67 | HBGL | HUBERT GLASS OIL CO | SCAC4 | ||
| 68 | HBGM | HERMANN BUSS GMBH & CIE | SCAC4 | ||
| 69 | HBGO | HELD BEREEDERUNGS GMBH & CO KG | SCAC4 | ||
| 70 | HBGP | HALLIBURTON GROUP CANADA | SCAC4 | ||
| 71 | HBGR | HOGBERG, ROBIN TODD | SCAC4 | ||
| 72 | HBGS | HUDSON LOGISTICS INC | SCAC4 | ||
| 73 | HBGX | HBG Enterprises of Tampa, Inc. | added 10/1984; 1/1994-7/2005 | NAKINA | |
| 74 | HBGX | Hillsboro Bottled Gas Co. | added 10/1968; 4/1970-1/1980; eliminated 10/1984 | NAKINA | |
| 75 | HBGX | Hugger Brothers Gravel Co. | 8/1920 | NAKINA | |
| 76 | HBGX | Hillsboro Bottled Gas Co. | added 10/68; 4/70-1/80; eliminated 10/84 | NRHS | |
| 77 | HBGX | HBG Enterprises of Tampa, Inc. | added 10/84; 1/94-7/2000 | NRHS | |
| 78 | HBGX | *HUGGER BROTHERS GRAVEL CO. | PWRC | ||
| 79 | HBGX | +HBG ENTERPRISES OF TAMPA, INC. [HILLSBORO BOTTLED GAS CO.] | PWRC | ||
| 80 | HBGX | Hillsboro Bottled Gas (HBG Enterprises of Tampa) | RSRV | ||
| 81 | HBGX | HBG ENTERPRISES OF TAMPA, INC. | SCAC4 | ||
| 82 | HBHF | H B HELLER FASHION TEAM INC | SCAC4 | ||
| 83 | HBI | CHC Denmark | ICAO1 | ||
| 84 | HBIC | HARBOR BRIDGE INTERMODAL INC | SCAC4 | ||
| 85 | HBII | HARBOUR INTERNATIONAL INCORPORATED | SCAC4 | ||
| 86 | HBIL | HILLBILLY TRANSPORT LTD | SCAC4 | ||
| 87 | HBIM | HILL BROTHERS INTERMODAL LOGISTICS | SCAC4 | ||
| 88 | HBIN | HOFFMAN, BILL | SCAC4 | ||
| 89 | HBIR | HUELLINGHOFF BROS INC | SCAC4 | ||
| 90 | HBIS | HEMPT BROTHERS INC | SCAC4 | ||
| 91 | HBIU | H B I | SCAC4 | ||
| 92 | HBIZ | HARVEST BRAND INC. | PWRC | ||
| 93 | HBJ | Horsens - Bryrup Jernbane | 1899 - 1929 | DK | jernbanen.dk |
| 94 | HBJ | Horsens - Bryrup Jernbane | 1899 - 1929 | DK | TRAFFIC |
| 95 | HBJS | HILAC BEAUTY & JEWELLERY | SCAC4 | ||
| 96 | HBKC | HAMEL BULK CARRIERS LTD | SCAC4 | ||
| 97 | HBKF | HAWBAKER FARMS | SCAC4 | ||
| 98 | HBKG | HUBERT TRUCKING INC | SCAC4 | ||
| 99 | HBKH | HERBIES TRUCKING LLC | SCAC4 | ||
| 100 | HBKK | HABECK TRUCKING INC | SCAC4 |