| 101 | HABX | +HABCO INTERNATIONAL INC. [HORNE-BOATRIGHT CHEMICAL CO., INC.] | | | PWRC |
| 102 | HABX | Habco International | | | RSRV |
| 103 | HABX | HABCO INTERNATIONAL INC. | | | SCAC4 |
| 104 | HAC | Henebury Aviation Co. | | AUS | AVCODES |
| 105 | HAC | Henebury Aviation | | | ICAO1 |
| 106 | HAC | Hokkaido Air System | Real: NTH, 6L | J | TRAFFIC |
| 107 | HACA | HAINAULT LLC | | | SCAC4 |
| 108 | HACC | HAWK TRANSPORTATION INC | | | SCAC4 |
| 109 | HACD | HADLEY SEED FARM | | | SCAC4 |
| 110 | HACE | HAAG TRANSPORT INC | | | SCAC4 |
| 111 | HACH | HACHE EXPRESS INC | | | SCAC4 |
| 112 | HACK | HACK & SONS TRUCKING | | | SCAC4 |
| 113 | HACK | Hackney Community Transport | | GB | TRAFFIC |
| 114 | HACL | HARTWIG TRUCKING INC | | | SCAC4 |
| 115 | HACO | HALLCO TRANSPORT SYSTEMS INC | | | SCAC4 |
| 116 | HACR | H & A EXPRESS INC | | | SCAC4 |
| 117 | HACT | HAMMOND AIR CONDITIONING LTD | | | SCAC4 |
| 118 | HACU | HAIAN TRANSPORT & STEVEDORING JSC | | VN | BIC |
| 119 | HACU | CONTENEMAR SA | | | SCAC4 |
| 120 | HACV | HARRIS AIRCRAFT SERVICES INC | | | SCAC4 |
| 121 | HACX | Canada Packers Ltd. | eliminated 4/1971 | | NAKINA |
| 122 | HACX | Canada Packers Ltd. (The Harris Abbatoir Co., Ltd.) | 7/1935-4/1970 | | NAKINA |
| 123 | HACX | The Harris Abbatoir Co., Ltd. (Canada Packers Ltd.) | 7/1932 | | NAKINA |
| 124 | HACX | Canada Packers Ltd. (The Harris Abbatoir Co., Ltd.) | 4/38-4/70 | | NRHS |
| 125 | HACX | Canada Packers Ltd. | eliminated 4/71 | | NRHS |
| 126 | HACX | CANADA PACKERS LTD. [HARRIS ABBATOIR CO., LTD.] | | | PWRC |
| 127 | HAD | Haiti Aviation S.A. d/b/a Air D'Ayiti | IATA: H9, Callsign: Haiti Avia, Designator H9 reinstated by IATA | RH | AVCODES |
| 128 | HAD | Helicopteros Andes | Callsign: Heliandes, | RCH | AVCODES |
| 129 | HAD | Haiti Aviation S.A. | IATA: H5, | RH | AVCODES |
| 130 | HADB | HALO DISTRIBUTING COMPANY | | | SCAC4 |
| 131 | HADD | HALL, GEO A INC | | | SCAC4 |
| 132 | HADER | Hadersdorfer Reisen GmbH | | D | TRAFFIC |
| 133 | HADF | HARDEN FURNITURE INC | | | SCAC4 |
| 134 | HADI | HILLSBORO TRANSPORTATION COMPANY | | | SCAC4 |
| 135 | HADL | HYUNDAI AUSTRALIA DIRECT LINE | | | SCAC4 |
| 136 | HADM | HONEYWELL AEROSPACE DE MEXICO SA DE | | | SCAC4 |
| 137 | HADT | HADLEYS TRUCKING LLC | | | SCAC4 |
| 138 | HADV | HARBOUR ADVANCED MACHINING | | | SCAC4 |
| 139 | HADY | HADLEY EXHIBITS INC | | | SCAC4 |
| 140 | HADZ | HAWTHORNE ARMY AMMUNITION DEPOT | | | PWRC |
| 141 | HAE | Kenmore Crew Leasing, Inc. | Callsign: Holland Air, | USA | AVCODES |
| 142 | HAEC | HALLOWELL EMC | | | SCAC4 |
| 143 | HAED | HARTWIG, ED, TRUCKING&EXCAVATING, INC | | | SCAC1 |
| 144 | HAEI | Heartland Express | | | SCAC2 |
| 145 | HAEI | HEARTLAND EXPRESS SERVICES INC | | | SCAC4 |
| 146 | HAEI | Heartland Express | | USA | TRAFFIC |
| 147 | HAEQ | HAUL-ALL EQUIPMENT LTD | | | SCAC4 |
| 148 | HAES | HARLEYS ELECTRICAL SERVICES LTD | | | SCAC4 |
| 149 | HAEU | HAEWOO GLS CO LTD | | | SCAC4 |
| 150 | HAEW | HAUSER, ED, TRUCK SERVICE | | | SCAC1 |
| 151 | HAEW | HAUSER, ED TRUCKING SERVICE INCORPO | | | SCAC4 |
| 152 | HAF | Hellenic Air Force | Callsign: Hellenic Air Force, | GR | AVCODES |
| 153 | HAF | Hearst Air Service Ltd. | Callsign: Hearst Air, | CDN | AVCODES |
| 154 | HAF | Hellenic Air Force | | | ICAO1 |
| 155 | HAFB | HILLFIELD AIRBASE | | | PWRC |
| 156 | HAFC | HAFNERS, CHUCK FARMERS MARKET AND G | | | SCAC4 |
| 157 | HAFE | HAFER, WM | | | SCAC1 |
| 158 | HAFF | H & FRIENDS FREIGHT INC | | | SCAC4 |
| 159 | HAFG | HARBOR FREIGHT TRANSPORT CORP | | | SCAC4 |
| 160 | HAFI | HALEY TRACTOR & EQUIPMENT | | | SCAC4 |
| 161 | HAFK | HAFER TRUCK SERVICE INC | | | SCAC4 |
| 162 | HAFL | HARBIN FREIGHT LINES/BHM EXPRESS (D | | | SCAC4 |
| 163 | HAFO | HANDFORD OIL & ASPHALT INC | | | SCAC4 |
| 164 | HAFR | HORIZON AIR FREIGHT INC | | | SCAC4 |
| 165 | HAFU | HAFNARBAKKI HF | | | SCAC4 |
| 166 | HAFW | HARVEY FREIGHT-WAYS, INC | | | SCAC1 |
| 167 | HAFW | HARVEY FREIGHTWAYS | | | SCAC4 |
| 168 | HAFX | Herf & Frerichs Chemical Co. | 8/1920-7/1923 | | NAKINA |
| 169 | HAFX | HERF & FRERICHS CHEMICAL CO. | | | PWRC |
| 170 | HAG | Hageland Aviation Services, Inc | IATA: H6, Callsign: Hageland, Founed in 1981. Rebranded as Era Alaska in 2009. | USA | AVCODES |
| 171 | HAG | Hageland Aviation Services, Inc | IATA: H6, Callsign: Hageland, Filed for Chapter 11 Bankruptcy, temporarily ceased all operations on 05 April 2020. Founed in 1981. Rebranded as Era Alaska in 2009. | USA | AVCODES |
| 172 | HAG | Hageland Aviation Services | IATA: H6 | | ICAO1 |
| 173 | HAGD | HANSON AGGREGATES NEDERLAND B V | | | SCAC4 |
| 174 | HAGE | Hamburger Eisenbahn e.K | | DE | VKM |
| 175 | HAGEN | Hagener Straßenbahn AG | Real: HST, City: Hagen | D | TRAFFIC |
| 176 | HAGI | HAG LINE | | | SCAC4 |
| 177 | HAGJ | HAGER, JOE TRUCKING INC | | | SCAC4 |
| 178 | HAGO | HAAG OIL COMPANY LLC | | | SCAC4 |
| 179 | HAGQ | HAGEMASTER MOTOR SERVICE, INC | | | SCAC1 |
| 180 | HAGS | HAGAN AND SON TRUCKING INC | | | SCAC4 |
| 181 | HAGU | HERRENKNECHT AG | | D | BIC |
| 182 | HAGX | Hazel-Atlas Glass Co. | 8/1920; 7/1937-1/1941 | | NAKINA |
| 183 | HAGX | Hazel-Atlas Glass Co. | Apr-38 | | NRHS |
| 184 | HAGX | HAZEL-ATLAS GLASS CO. | | | PWRC |
| 185 | HAGY | HAGGERTY LOGISTICS | | | SCAC4 |
| 186 | HAH | Hanhwa Business Jet Airlines Co., Ltd | Callsign: Hanma, | PRC | AVCODES |
| 187 | HAH | Air Comores International | IATA: GG | | ICAO1 |
| 188 | HAHE | HARRAH INDUSTRIES INC | | | SCAC4 |
| 189 | HAHK | H AND H TRUCKING | | | SCAC4 |
| 190 | HAHN | HAHN TRANSPORT | | | SCAC4 |
| 191 | HAHU | SHANGHAI HAI HUA SHIPPING CO LTD | | | SCAC4 |
| 192 | HAHX | The H. & H. Refinery Co. | 8/1920 | | NAKINA |
| 193 | HAHX | H. & H. REFINERY CO. | | | PWRC |
| 194 | HAI | Century Aviation International, Ltd. | | CDN | AVCODES |
| 195 | HAI | Hai Au Aviation Joint Stock Company | | VN | AVCODES |
| 196 | HAI | Century Aviation International | | | ICAO1 |
| 197 | HAIC | HAULIN ACID INC | | | SCAC4 |
| 198 | HAIG | HAIGOOD & CAMPBELL LLC | | | SCAC4 |
| 199 | HAIH | HOLDEN & ASSOCIATES INC | | | SCAC4 |
| 200 | HAIN | HALE INTERMODAL TRUCKING COMPANY (D | | | SCAC4 |
