| SEANACTIV 2122247 · TMA1216181 | Owner not shown | 1 Chemicals3 Cosmetics | Registered | 2023 |
| SNACTIV 2171770 · TMA1204351 | INOOBI, INC. | 8 Hand | 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 |
| SKINACTIVE 1054628 · TMA562524 | Owner not shown | 3 Cosmetics | Registered | 2002 |
| SINEACTIN 1327932 · TMA711648 | Sunforce Health & Organics Inc. | 5 Pharmaceuticals | Registered | 2008 |
| SENSITIVA 2077781 | Sensitiva Canada Ltd. | 3 Cosmetics5 Pharmaceuticals9 Electronics+2 | Pending | 2021 |
| 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 |
| SYNACTO 0775386 · TMA489243 | Infineum International Limited | 1 Chemicals | Registered | 1998 |
| SYNECTIQ 2244965 | Synectiq Inc. | 35 Advertising | Pending | 2023 |
| SENSATIVAX 1724305 · TMA989634 | Medicinal Genomics Corporation | 1 Chemicals | Registered | 2018 |
| SENSETIME 1871600 · TMA1088347 · design | Beijing SenseTime Technology Development Co. Ltd | 9 Electronics | Registered | 2020 |
| SENSETIME 1869420 · TMA1093188 | Beijing SenseTime Technology Development Co. Ltd | 9 Electronics12 Vehicles42 Science | Registered | 2021 |
| SENSITRIM 1500969 · TMA809397 | WEIDER GLOBAL NUTRITION, LLC, a Nevada limited liability company | 5 Pharmaceuticals | Registered | 2011 |
| SUNSITIVE 1442093 · TMA903936 | Owner not shown | 1 Chemicals3 Cosmetics5 Pharmaceuticals | Registered | 2015 |
| SENSATION 1397975 · TMA867441 · design | Owner not shown | 9 Electronics25 Clothing38 Telecommunications+1 | Registered | 2013 |
| SENSATION 1340278 · TMA715626 | Pure Fishing, Inc. | 28 Toys | Registered | 2008 |
| SENSATION 1264565 · TMA829459 · design | Owner not shown | 41 Education | Registered | 2012 |
| SENSATION 1051742 · TMA579639 | Owner not shown | 16 Paper | Registered | 2003 |
| SENSATION 0892989 · TMA546411 | Maax Bath Inc. | 11 Lighting | Registered | 2001 |
| SENSITHIN 0883432 · TMA513261 | Pure Fishing, Inc. | 28 Toys | Registered | 1999 |