| HELLCAT 2162007 · TMA1232297 | EASTON DIAMOND SPORTS, LLC | 9 Electronics28 Toys | Registered | 2024 |
| HELLCAT 2118743 · TMA1184201 | Parsons Xtreme Golf, LLC | 28 Toys | Registered | 2023 |
| HELIACT 1773080 · TMA1062100 | Lintec of America, Inc. | 7 Machines9 Electronics | Registered | 2019 |
| HELLCAT 1464807 · TMA786014 | NewAgco Inc. | 1 Chemicals5 Pharmaceuticals | Registered | 2010 |
| HELLCAT 1079217 · TMA569806 | an individual | 12 Vehicles | Registered | 2002 |
| HELLCAT 2047842 | Lochinvar, LLC | 9 Electronics11 Lighting | Pending | 2020 |
| HELST 2054196 · TMA1252056 | KOHLER CO. | 20 Furniture | Registered | 2024 |
| Healacti 2110836 · TMA1191934 | Dongguan Haoshangjing E-Commerce Co. Ltd. | 9 Electronics21 Housewares | Registered | 2023 |
| HELICOTE 1894141 · TMA1070518 | Integra LifeSciences Corporation | 5 Pharmaceuticals | Registered | 2020 |
| HILECTEV 1735286 · TMA1037378 | an individual | 5 Pharmaceuticals | Registered | 2019 |
| HELIJET 2238036 · TMA1259812 · design | Helijet International Inc. | 39 Transport | Registered | 2024 |
| HELIGHT 1803553 · TMA993291 | Owner not shown | 10 Medical11 Lighting44 Medical | Registered | 2018 |
| HOLESTA 1579607 · TMA896892 | PEAK WERKSTOFF GMBH | 6 Metal | Registered | 2015 |
| HELLKAT 1359580 · TMA858262 | Entain Operations Limited | 9 Electronics41 Education | Registered | 2013 |
| HELIJET 0894324 · TMA520531 | Helijet International Inc. | 39 Transport | Registered | 1999 |
| HELIKIT 0866528 · TMA518549 | Endo Operations Limited | 10 Medical | Registered | 1999 |
| HELIKIT 0806408 · TMA482371 | Endo Operations Limited | 10 Medical42 Science | Registered | 1997 |
| HILICHT 2300138 · design | Ningbo GoldX Electronics Co. ltd. | 7 Machines9 Electronics | Pending | 2023 |
| HEYLIST 2282640 | Heylist inc. | 42 Science | Pending | 2023 |
| HYALECTIN 1131710 · TMA638620 | an individual | 1 Chemicals5 Pharmaceuticals | Registered | 2005 |
| HYLECTRIC 1094561 · TMA602502 · design | HUSKY INJECTION MOLDING SYSTEMS LTD. | 7 Machines9 Electronics | Registered | 2004 |
| HELIOCOAT 1053365 · TMA553492 | PROTECH CHIMIE LTEE/PROTECH CHEMICALS LTD. | 2 Paints | Registered | 2001 |
| HYLECTRIC 1010152 · TMA542145 | HUSKY INJECTION MOLDING SYSTEMS LTD. | 7 Machines | Registered | 2001 |
| HELLOCHAT 2001925 | CheckPay Technologies Ltd. | 7 Machines9 Electronics16 Paper+7 | Pending | 2019 |
| Holistish 2237408 · TMA1258184 | 9330-5571 Québec inc. | 16 Paper25 Clothing35 Advertising+1 | Registered | 2024 |