| Saniquick 2032591 · TMA1136552 | Nanz Life Science Inc. | 5 Pharmaceuticals | Registered | 2022 |
| Sunqiss 2252345 · TMA1284667 | Xygenyx Inc. | 3 Cosmetics | Registered | 2025 |
| SONGKICK 1728134 · TMA972321 | SK Acquisition Ltd | 6 Metal9 Electronics16 Paper+3 | Registered | 2017 |
| SUNQUEST 0727491 · TMA429162 | H.I.S. CANADA TRAVEL INC. | 39 Transport | Registered | 1994 |
| SUNQUEST 0708683 · TMA414100 | H.I.S. CANADA TRAVEL INC. | 39 Transport | Registered | 1993 |
| SUNQUEST 0665865 · TMA429291 | Red Label Vacations Inc. | 18 Leather27 Carpets | Registered | 1994 |
| SUNCHOICE 0809282 · TMA487986 | Capespan (Proprietary) Limited | 31 Fresh | Registered | 1998 |
| SUNCHOICE 2130562 · design | Sunnylife Health Enterprises Inc. | 3 Cosmetics5 Pharmaceuticals | Pending | 2021 |
| SANACKEYS 2256187 · TMA1274711 | Atlas Goods Inc. | 29 Meat30 Coffee | Registered | 2024 |
| SENSAGLO 2246166 · TMA1263257 | Owner not listed | 1 Chemicals | Registered | 2024 |
| Scancycle 2229135 · TMA1255081 | 1000362823 ONTARIO CORPORATION | 40 Treatment | Registered | 2024 |
| SmokyJoy 2226198 · TMA1252585 | Chaozhou Jinrui Heng Trading Co.Ltd. | 34 Tobacco | Registered | 2024 |
| Singcock 2220535 · TMA1248491 | an individual | 25 Clothing | Registered | 2024 |
| SNOWGAZ 2220062 · TMA1253776 | CHARBONE HYDROGEN Corporation | 37 Construction | Registered | 2024 |
| SUNSEEKER 2217672 · TMA1284622 · design | Zhejiang Sunseeker Industrial Co. Ltd. | 7 Machines9 Electronics | Registered | 2025 |
| SUNKISS 2217338 · TMA1246697 · design | SUNKISS HEALTHCARE (ZHEJIANG) CO. LTD. | 10 Medical | Registered | 2024 |
| SENSAIZ 2215864 · TMA1280886 | Lucid Vision Labs, Inc. | 9 Electronics10 Medical | Registered | 2025 |
| SENSAIZ 2215863 · TMA1284620 · design | Lucid Vision Labs, Inc. | 9 Electronics10 Medical | Registered | 2025 |
| SUNJOYCO 2208700 · TMA1241622 | SUNJOY CO., LTD | 18 Leather | Registered | 2024 |
| SYNEXIS 2174625 · TMA1206631 · design | Synexis LLC | 11 Lighting37 Construction | Registered | 2023 |
| SKIMSEEK 2167407 · TMA1203185 | Neogen Corporation | 42 Science | Registered | 2023 |
| SOMASIGNAL 2167390 · TMA1245061 | SomaLogic Operating Co. Inc. | 44 Medical | Registered | 2024 |
| SENSIC 2163059 · TMA1212387 · design | Sensic Inc. | 9 Electronics | Registered | 2023 |
| SNOWCASE 2159855 · TMA1228888 | Snowflake Inc. | 35 Advertising42 Science | Registered | 2024 |
| SMOKISSIME 2148408 · TMA1217269 · design | RESTAURANTS PACINI INC. | 29 Meat43 Restaurants | Registered | 2024 |