| SUNSPECTRUM 1366393 · TMA802096 | SUN LIFE ASSURANCE COMPANY OF CANADA | 36 Finance | Registered | 2011 |
| SUNSPEAR 1899393 · TMA1084379 | Nissan Chemical Corporation | 5 Pharmaceuticals | Registered | 2020 |
| SUNSPEC 2072997 | Bio-Med Research Technology Inc | 9 Electronics11 Lighting42 Science+1 | Pending | 2020 |
| SUNSPERSE 1998375 · TMA1103342 | an individual | 2 Paints | Registered | 2021 |
| SUNSPEL 1948417 · TMA1217795 | Thomas A. Hill Limited | 3 Cosmetics9 Electronics14 Jewellery+4 | Registered | 2024 |
| SUNSPACE 1925359 · TMA1231928 · design | Sunspace Modular Enclosures Inc. | 6 Metal37 Construction | Registered | 2024 |
| SUNSPACE 1925358 · TMA1231929 · design | Sunspace Modular Enclosures Inc. | 6 Metal37 Construction | Registered | 2024 |
| SUNSPACE 1925357 · TMA1231930 | Sunspace Modular Enclosures Inc. | 6 Metal37 Construction | Registered | 2024 |
| SUNSPHERE 1758935 · TMA1042378 | Sunovion Pharmaceuticals Inc. | 10 Medical | Registered | 2019 |
| SUNSPOT 1156972 · TMA626974 · design | TEST RITE INTERNATIONAL CO., LTD. | 11 Lighting | Registered | 2004 |
| SUNSPIRE 1032475 · TMA556344 | The Hain Celestial Group, Inc. | 29 Meat30 Coffee | Registered | 2002 |
| SUNSPORT 0736274 · TMA456208 · design | THE SUNRIDER CORPORATION, DOING BUSINESS IN THE PROVINCE OF QUEBEC UNDER NAME SUNRIDER INTERNATIONAL | 5 Pharmaceuticals21 Housewares | Registered | 1996 |
| SYNSPEC 0729773 · TMA433461 | TotalEnergies Marketing Canada Inc. | 1 Chemicals4 Oils | Registered | 1994 |
| SUNSPOT 0565205 · TMA326739 | SUN LUBRICANTS AND SPECIALTY PRODUCTS INC. | 35 Advertising42 Science | Registered | 1987 |
| SUNSPLIT 2282582 | Dominion City Brewing Company Inc. | 32 Beer | Pending | 2023 |
| Sensiband 2258640 · TMA1269034 | Owner not listed | 10 Medical | Registered | 2024 |
| SMASHBOX 2255763 · TMA1271638 | an individual | 35 Advertising | Registered | 2024 |
| syncup 2253306 · TMA1276092 | TIANJIN HUALAI TECHNOLOGY CO. LTD. | 9 Electronics35 Advertising | Registered | 2024 |
| SN100CV 2250304 · TMA1250339 | Owner not listed | 6 Metal | Registered | 2024 |
| SENSAFOAM 2246158 · TMA1263254 | Owner not listed | 1 Chemicals | Registered | 2024 |
| Sonicpak 2242141 · TMA1262950 | Owner not listed | 16 Paper | Registered | 2024 |
| Simgahuva 2241619 · TMA1265565 | Owner not listed | 25 Clothing | Registered | 2024 |
| SENSOPASS 2240570 · TMA1224680 | SENSODRIVE TECHNOLOGY CORP. | 9 Electronics | Registered | 2024 |
| SENSIBLES 2233744 · TMA1256669 | Huhtamaki, Inc. | 21 Housewares | Registered | 2024 |
| SKINCOUVER 2217827 · TMA1245549 | SKINCOUVER LASER AND SKIN STUDIO INC. | 44 Medical | Registered | 2024 |