| SENACTIV 2134369 · TMA1196928 | NuLiv Science USA Inc | 5 Pharmaceuticals | Registered | 2023 |
| SEANACTIV 2122247 · TMA1216181 | Owner not shown | 1 Chemicals3 Cosmetics | Registered | 2023 |
| SUNACTIVE 1254390 · TMA666959 | Taiyo International, Inc. | 5 Pharmaceuticals | Registered | 2006 |
| SYNACTIF 2179125 · TMA1271117 · design | SHISEIDO COMPANY, LIMITED | 35 Advertising | Registered | 2024 |
| SYNACTIF 1985678 · TMA1138271 · design | SHISEIDO COMPANY, LIMITED | 3 Cosmetics | Registered | 2022 |
| SYNACTIF 1678008 · TMA917580 | SHISEIDO COMPANY, LIMITED | 3 Cosmetics21 Housewares44 Medical | Registered | 2015 |
| SNACKIT 1672999 · TMA945817 · design | an individual | 29 Meat30 Coffee | Registered | 2016 |
| SNAKTV 1346920 · TMA750567 | 2645-7028 Quebec Inc | 14 Jewellery16 Paper18 Leather+3 | Registered | 2009 |
| SNACKIT 1160531 · TMA607767 | an individual | 29 Meat30 Coffee | Registered | 2004 |
| SKINACTIVE 1054628 · TMA562524 | Owner not shown | 3 Cosmetics | Registered | 2002 |
| SINEACTIN 1327932 · TMA711648 | Sunforce Health & Organics Inc. | 5 Pharmaceuticals | Registered | 2008 |
| SNEAKTIP 1410136 · TMA763450 | an individual | 25 Clothing | Registered | 2010 |
| SYNECTIQ 2244965 | Synectiq Inc. | 35 Advertising | Pending | 2023 |
| SNAGIT 1493841 · TMA804239 | TechSmith Corporation | 9 Electronics | Registered | 2011 |
| SYNACTO 0775386 · TMA489243 | Infineum International Limited | 1 Chemicals | Registered | 1998 |
| SnackToGo 1571753 · TMA853558 | Seaside Paper Products Ltd. | 21 Housewares | Registered | 2013 |
| SUNSITIVE 1442093 · TMA903936 | Owner not shown | 1 Chemicals3 Cosmetics5 Pharmaceuticals | Registered | 2015 |
| SYNECTICS 0360340 · TMA193531 | Synecticsworld, Inc. | 35 Advertising41 Education | Registered | 1973 |
| SYNACTHEN 0288909 · TMA143795 | Novartis Pharmaceuticals Canada Inc. | 5 Pharmaceuticals | Registered | 1966 |
| SONICTWIN 2244028 | Owner not listed | 9 Electronics20 Furniture37 Construction+2 | Pending | 2022 |
| SENSITIVA 2077781 | Sensitiva Canada Ltd. | 3 Cosmetics5 Pharmaceuticals9 Electronics+2 | Pending | 2021 |
| SNACKTOWN 2013812 | an individual | 35 Advertising | Pending | 2020 |
| SNACKSTICKS 2224701 | an individual | 29 Meat | Pending | 2022 |
| SINGDAPTIVE 2006843 | Singdaptive Academy Inc. | 9 Electronics41 Education42 Science | Pending | 2020 |
| SUNGAIT 2316110 · TMA1247380 | Owner not listed | 9 Electronics | Registered | 2024 |