| 1 | HK | other transit systems | City: Hong Kong | HK | TRAFFIC |
| 2 | HK | Hans Kaiser GmbH & Co KG | DE | VKM | |
| 3 | HKA | Superior Aviation | IATA: SO | ICAO1 | |
| 4 | HKAG | Hastag Kies AG | CH | TRAFFIC | |
| 5 | HKAG | Hastag Kies AG | CH | VKM | |
| 6 | HKAM | HOUCKS FUEL OIL CO INC | SCAC4 | ||
| 7 | HKB | Hersfelder Kreisbahn | D | TRAFFIC | |
| 8 | HKB | Museumseisenbahn Hümmlinger Kreisbahn e.V. | DE | VKM | |
| 9 | HKBAU | Hieden & Kall Hoch- und Tiefbaugesellschaft mbH | AT | VKM | |
| 10 | HKBH | HAINES & KIBBLEHOUSE INC | SCAC4 | ||
| 11 | HKBN | HERITAGE OAKS FARM TRANSPORTATION S | SCAC4 | ||
| 12 | HKCB | HERB FRENCH TRUCKING | SCAC4 | ||
| 13 | HKCB | Citybus Limited | HK | TRAFFIC | |
| 14 | HKCF | Hong Kong Cityflyer | HK | TRAFFIC | |
| 15 | HKCI | HOUTX TRUCKING INC | SCAC4 | ||
| 16 | HKCM | HIKINGCAMPING.C | SCAC4 | ||
| 17 | HKCT | HENNER TANK LINES INC | SCAC4 | ||
| 18 | HKCV | HAWKINS COVE OIL SUPPLY CORP | SCAC4 | ||
| 19 | HKDA | HREBENIUK, DARCY | SCAC4 | ||
| 20 | HKDI | HECKLER & KOCH DEFENSE INC | SCAC4 | ||
| 21 | HKE | Hong Kong Express Airways | IATA: UO | ICAO1 | |
| 22 | HKE | Hong Kong Express | HK | TRAFFIC | |
| 23 | HKEC | HORSTMEIER TRUCKING LLC | SCAC4 | ||
| 24 | HKEI | HAAS, KEITH ENTERPRISES INC | SCAC4 | ||
| 25 | HKEN | HOCKENBARY, J & J | SCAC4 | ||
| 26 | HKEP | HAWKS EXPRESS INC | SCAC4 | ||
| 27 | HKEQ | HASKIN, STEVE TRUCKING | SCAC4 | ||
| 28 | HKEV | HARVICK, KEVIN INC | SCAC4 | ||
| 29 | HKEY | HACKER BOAT COMPANY INC | SCAC4 | ||
| 30 | HKFI | HIS KINGDOM FREIGHT INC | SCAC4 | ||
| 31 | HKFL | HUSKY FLOORING (DIV OF | SCAC4 | ||
| 32 | HKG | Government Flying Service | ICAO1 | ||
| 33 | HKGC | HOOK GRAIN CORP | SCAC4 | ||
| 34 | HKGI | HOLTHAUS TRUCKING INC | SCAC4 | ||
| 35 | HKGU | HONG KONG ISLANDS LINE | PWRC | ||
| 36 | HKGU | Hong Kong Islands Line | RSRV | ||
| 37 | HKGX | Haines & Kibblehouse, Inc. | 7/2005 (not listed) | NAKINA | |
| 38 | HKGX | HAINES & KIBBLEHOUSE, INC. | PWRC | ||
| 39 | HKGX | Haines & Kibblehouse Inc. (The H&K Group) | RSRV | ||
| 40 | HKGX | HAINES & KIBBLEHOUSE INC | SCAC4 | ||
| 41 | HKGX | Haines & Kibblehouse Inc | USA | TRAFFIC | |
| 42 | HKH | Air-Invest | ICAO1 | ||
| 43 | HKHA | Hong Kong Hospital Authority | HK | TRAFFIC | |
| 44 | HKHUV | Klostermann Baugesellschaft GmbH | DE | VKM | |
| 45 | HKI | Hawkaire | ICAO1 | ||
| 46 | HKIN | HOLLISTER TRUCKING INC | SCAC4 | ||
| 47 | HKIR | HILLS TRUCKING INC | SCAC4 | ||
| 48 | HKIS | HONG KONG ISLANDS LINE | PWRC | ||
| 49 | HKIU | HONG KONG ISLANDS LINE | PWRC | ||
| 50 | HKIU | Hong Kong Islands Line | RSRV | ||
| 51 | HKJ | Hästveda - Karpalund Järnväg | 1886 - 1898 | S | svenska-lok.se |
| 52 | HKJF | HARVEL, K & J FARMS | SCAC4 | ||
| 53 | HKJL | HARKNESS, JIM EQUIPMENT LTD | SCAC4 | ||
| 54 | HKJT | HACKLE, JERRY TRUCKING | SCAC4 | ||
| 55 | HKKL | HICKS TRUCKING II LLC | SCAC4 | ||
| 56 | HKL | Hak Air | ICAO1 | ||
| 57 | HKLC | HOKER LOGISTICS LLC | SCAC4 | ||
| 58 | HKLG | H & K LOGISTICS LLC | SCAC4 | ||
| 59 | HKLI | HWY-KING LOGISTICS INC | SCAC4 | ||
| 60 | HKLS | HERRING, KEN L & SON INC | SCAC4 | ||
| 61 | HKMD | HAWKEYE MOVERS OF DAVENPORT INC | SCAC4 | ||
| 62 | HKMI | HENKELS & MCCOY INC | SCAC4 | ||
| 63 | HKMTR | MTR Corporation | HK | TRAFFIC | |
| 64 | HKMW | HONG KONG MING WAH SHIPPING COMPANY | SCAC4 | ||
| 65 | HKN | Jim Hankins Air Service | ICAO1 | ||
| 66 | HKNANNY | School private bus service | City: Hong Kong | HK | TRAFFIC |
| 67 | HKNI | HIT INC | SCAC4 | ||
| 68 | HKNU | HUBERT KLASENER JR FLUSSIGKEITSTRAN | SCAC4 | ||
| 69 | HKO | Hilton Kommunal GmbH | DE | VKM | |
| 70 | HKOD | HHTANKERS ONE LTD | SCAC4 | ||
| 71 | HKOL | HAWKEYE OIL CO | SCAC4 | ||
| 72 | HKONG | TRAFFIC | |||
| 73 | HKPE | HOLTKAMP ENTERPRISES | SCAC4 | ||
| 74 | HKPI | HAWK PLASTICS LTD | SCAC4 | ||
| 75 | HKPU | HONG KONG ISLANDS LINE | PWRC | ||
| 76 | HKPU | Hong Kong Islands Line | RSRV | ||
| 77 | HKR | Hawk Air | ICAO1 | ||
| 78 | HKRA | HOEKSTRA TRANSPORTATION LLC | SCAC4 | ||
| 79 | HKRD | HOEKSTRA DEDICATED (DIV OF HOEKSTRA | SCAC4 | ||
| 80 | HKRE | HINKLEY, R E CO INC | SCAC4 | ||
| 81 | HKREHA | The Hong Kong Society for Rehabilitation | HK | TRAFFIC | |
| 82 | HKRL | HOEKSTRA LOGISTICS LLC | SCAC4 | ||
| 83 | HKRN | HAMELIN, KRISTIN | SCAC4 | ||
| 84 | HKS | CHC Helikopter Service | ICAO1 | ||
| 85 | HKSB | HAMRICK SR, BRET T | SCAC4 | ||
| 86 | HKSC | HUCKABAY, KENT S LLC | SCAC4 | ||
| 87 | HKSD | HOOKS, DUANE | SCAC4 | ||
| 88 | HKSL | HENRIKSEN, AL TRANS | SCAC4 | ||
| 89 | HKSN | HOCKERSMITH TRANSPORTATION SERVICES COMPANY, INC | SCAC1 | ||
| 90 | HKSP | HAWK SHIPPING LLC | SCAC4 | ||
| 91 | HKSR | H K SPEED EXPRESS INC | SCAC4 | ||
| 92 | HKST | HILKER, STEVE TRUCKING INC | SCAC4 | ||
| 93 | HKTD | HK TOWING LLC | SCAC4 | ||
| 94 | HKTI | HANCOCK TRUCKING LLC | SCAC4 | ||
| 95 | HKTK | HUKRIEDE TRUCKING INC | SCAC4 | ||
| 96 | HKTN | H K P TRUCKING | SCAC4 | ||
| 97 | HKTO | HANADARKO TRANSPORT LLC | SCAC4 | ||
| 98 | HKTU | HONG KONG ISLANDS LINE | PWRC | ||
| 99 | HKTU | Hong Kong Islands Line | RSRV | ||
| 100 | HKTU | KLAESER INT FACHSPEDITION & FARHZEU | SCAC4 |