| HEATCON 1101691 · TMA597460 | Heatcon Inc. | 7 Machines35 Advertising37 Construction+3 | Registered | 2003 |
| HEDSON 1803566 · TMA1095520 | an individual | 7 Machines9 Electronics11 Lighting+3 | Registered | 2021 |
| HEADGAINS 2129697 | an individual | 3 Cosmetics35 Advertising | Pending | 2021 |
| HADOKEN 2216270 · TMA1244475 | CAPCOM CO., LTD | 9 Electronics25 Clothing28 Toys+1 | Registered | 2024 |
| HOATZIN 2206786 · TMA1241459 · design | an individual | 14 Jewellery18 Leather20 Furniture+5 | Registered | 2024 |
| HUDSONALPHA 1992131 · TMA1101257 | HUDSONALPHA INSTITUTE FOR BIOTECHNOLOGY | 42 Science44 Medical | Registered | 2021 |
| HUDSON 1852065 · TMA1053468 | 1141931 Ontario Ltd. | 12 Vehicles | Registered | 2019 |
| HITCHNOW 1848431 · TMA1069319 · design | an individual | 9 Electronics35 Advertising38 Telecommunications+2 | Registered | 2020 |
| HATCHIMALS 1820904 · TMA1070346 | Spin Master Ltd. | 3 Cosmetics9 Electronics18 Leather+1 | Registered | 2020 |
| HATCHIMALS 1801224 · TMA1006581 | Spin Master Ltd. | 9 Electronics16 Paper | Registered | 2018 |
| HEDGEMARK 1783750 · TMA983595 | Hedgemark International, LLC | 36 Finance | Registered | 2017 |
| HETSENY 1771975 · TMA1049463 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2019 |
| HATCHIMALS 1759464 · TMA982069 | Spin Master Ltd. | 9 Electronics28 Toys41 Education | Registered | 2017 |
| HTEssence 1703026 · TMA1018050 | an individual | 1 Chemicals3 Cosmetics5 Pharmaceuticals+3 | Registered | 2019 |
| HUTCHENCE 1682418 · TMA989758 | HINENI LTD | 9 Electronics25 Clothing41 Education | Registered | 2018 |
| HDCONNECT 1639021 · TMA917664 | Home Depot International, Inc. | 35 Advertising37 Construction38 Telecommunications+1 | Registered | 2015 |
| HEATSAN 1625020 · TMA936381 | Ameriwater, LLC, an Ohio limited liability company | 9 Electronics11 Lighting | Registered | 2016 |
| HUDSON 1581157 · TMA888837 | William Grant & Sons Irish Brands Limited | 33 Wine | Registered | 2014 |
| HDSM 1531873 · TMA830746 | Motorola Solutions, Inc. | 9 Electronics | Registered | 2012 |
| HITCHINER 1507033 · TMA820200 | Hitchiner Manufacturing Co., Inc. | 40 Treatment | Registered | 2012 |
| HITECHME 1413566 · TMA806942 | an individual | 35 Advertising38 Telecommunications42 Science | Registered | 2011 |
| HODGMAN 1286233 · TMA680924 | Pure Fishing, Inc. | 18 Leather21 Housewares25 Clothing | Registered | 2007 |
| HUDSON 1273377 · TMA729822 · design | Hudson Clothing, LLC, a Calfornia limited liability company | 14 Jewellery16 Paper20 Furniture+3 | Registered | 2008 |
| HOTZONE 1253586 · TMA751796 | Beanfield Technologies Inc. | 35 Advertising38 Telecommunications42 Science | Registered | 2009 |
| HITCHHUNTER 1232842 · TMA668040 | etrailer Corporation | 35 Advertising | Registered | 2006 |