| HEADSTART 2035669 · TMA1278284 | TIDI PRODUCTS, LLC | 10 Medical | Registered | 2024 |
| HEADSTOCK 1668818 · TMA905440 | Nickel Brook Brewing Company Inc. | 32 Beer | Registered | 2015 |
| HEADSTART 1515855 · TMA816403 | Canadian Credit Union Association Cooperative | 36 Finance | Registered | 2012 |
| HEADSTART 1352435 · TMA800761 | Wonder Brands Inc. | 30 Coffee | Registered | 2011 |
| HEADSTART 0775128 · TMA457403 | THE SASKATOON COLOSTRUM COMPANY LTD. | 5 Pharmaceuticals | Registered | 1996 |
| HEADSTART 0755676 · TMA455278 · design | Canadian Credit Union Association Cooperative | 36 Finance | Registered | 1996 |
| HEADSTART 0733956 · TMA456202 | CHIN RIDGE SEED PROCESSORS LTD. | 31 Fresh | Registered | 1996 |
| HEADSTART 0663784 · TMA387365 · design | Canadian Credit Union Association Cooperative | 36 Finance | Registered | 1991 |
| HEADSTART 0542864 · TMA312995 · design | Canadian Credit Union Association Cooperative | 36 Finance | Registered | 1986 |
| HOTSHOT 2226611 · TMA1243318 | Truvic Medical, Inc. | 10 Medical | Registered | 2024 |
| HADSTO 2147691 · TMA1159517 · design | Zhuzhou Huarui Precision Cutting ToolsCo. Ltd. | 7 Machines | Registered | 2023 |
| HOTSHOT 1892903 · TMA1093836 | Engineering Seismology Group Canada Inc. | 9 Electronics | Registered | 2021 |
| HOTSHOT 1874223 · TMA1079495 | Pumps & Pressure Inc. | 1 Chemicals3 Cosmetics7 Machines+2 | Registered | 2020 |
| Headster 1827410 · TMA1140835 | Les collections Headster Kids inc. | 25 Clothing | Registered | 2022 |
| HotShot 1804742 · TMA1043064 | CAFRAMO LIMITED | 11 Lighting | Registered | 2019 |
| HOTSHOT 1760453 · TMA1011756 | Adama Agan Ltd. | 5 Pharmaceuticals | Registered | 2018 |
| HOTSHOT 1737618 · TMA1037730 | Cliff-Cartwright Corporation | 5 Pharmaceuticals | Registered | 2019 |
| HEADCOTE 1222166 · TMA637327 | Starborn Industries, Inc. | 6 Metal | Registered | 2005 |
| HOTSHOT 0580954 · TMA343406 | Gentec, A Partnership consisting of 901089 Ontario Limited and Days Fashions Limited | 9 Electronics | Registered | 1988 |
| HOTSHOT 2128731 | Hotshot Inc. | 41 Education45 Legal | Pending | 2021 |
| Headstrong 2084341 · TMA1284198 | Involve Consulting Inc. | 16 Paper41 Education | Registered | 2025 |
| HEADSWEATS 1269265 · TMA688007 · design | NG Labs, Inc. | 25 Clothing | Registered | 2007 |
| HEADSTRONG 1056979 · TMA745652 | Headstrong Worldwide Limited | 9 Electronics16 Paper35 Advertising+3 | Registered | 2009 |
| HEADSTRONG 0797459 · TMA491212 | BIG HOLE BREWING COMPANY (A MONTANA CORPORATION) | 21 Housewares32 Beer | Registered | 1998 |
| HEADSTRONG 0923209 | Mental Health Commission of Canada | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2015 |