| SHOWZERO 2275090 | Lululemon Athletica Canada Inc. | 24 Textiles25 Clothing | Pending | 2023 |
| SHOCKER 2016337 · TMA1136406 | FCA US LLC | 12 Vehicles | Registered | 2022 |
| SHOCKER 1254837 · TMA663628 | SLUSH PUPPIE CANADA INC. | 30 Coffee | Registered | 2006 |
| SHOKZHEAR 2324963 · design | SHOKZ (SINGAPORE) PTE. LTD. | 10 Medical | Pending | 2024 |
| SHOWCARE 2142555 | SHOWCARE EVENT SOLUTIONS INC. | 35 Advertising41 Education42 Science+1 | Pending | 2021 |
| SOZAR 1907197 · TMA1075756 | Sozar Clothing & Accessories Distinctive Design Ltd. | 25 Clothing | Registered | 2020 |
| Sewker 1800185 · TMA985612 | GOLDWAY INDUSTRIAL(CANADA)INC | 20 Furniture24 Textiles | Registered | 2017 |
| SOAKER 1777199 · TMA1019213 | MacNeil IP LLC | 21 Housewares | Registered | 2019 |
| Soozier 1649679 · TMA894296 | AOSOM E-COMMERCE INC. | 7 Machines12 Vehicles27 Carpets+1 | Registered | 2015 |
| SOAKER 1242090 · TMA672009 | Avent, Inc. | 10 Medical | Registered | 2006 |
| SHAWCOR 1008846 · TMA556822 | 2543500 Alberta Ltd. d.b.a. Shaw Pipe Protection | 6 Metal7 Machines9 Electronics+7 | Registered | 2002 |
| SOCCER 0511230 · TMA296761 | LIMONEIRA COMPANY (A DELAWARE CORPORATION) | 31 Fresh | Registered | 1984 |
| SHAKER 1964661 | Owner not shown | 33 Wine | Pending | 2019 |
| SUGAR 23 2254350 · TMA1234048 · design | Sugar23, Inc. | 41 Education | Registered | 2024 |
| Sweejar 2252641 · TMA1271466 | Hangzhou Chennanran E-commerce Co. Ltd. | 21 Housewares | Registered | 2024 |
| Suuker 2251833 · TMA1270141 | Owner not listed | 21 Housewares | Registered | 2024 |
| SIJIRUHUA 2250609 · TMA1270023 | HONGKONG AOYIN INTERNATIONAL LIMITED | 25 Clothing | Registered | 2024 |
| SUGAR23 2248643 · TMA1234045 | Sugar23, Inc. | 41 Education | Registered | 2024 |
| SUGAR 23 2216671 · TMA1234003 | Sugar23, Inc. | 35 Advertising41 Education | Registered | 2024 |
| Sicario 2210261 · TMA1264105 | an individual | 25 Clothing33 Wine35 Advertising | Registered | 2024 |
| SHECARE 2193884 · TMA1219406 | an individual | 3 Cosmetics | Registered | 2024 |
| SASSORA 2177246 · TMA1240657 · design | LEATHERMAN FASHION PRIVATE LIMITED | 18 Leather | Registered | 2024 |
| SHIKRA 2165761 · TMA1234496 | Nokia Corporation | 9 Electronics | Registered | 2024 |
| sugar 2160483 · TMA1211109 | an individual | 30 Coffee35 Advertising43 Restaurants | Registered | 2023 |
| Sxkayxr 2159237 · TMA1218400 | Dongyang Zhiman Electronic Commerce Co. Ltd. | 25 Clothing | Registered | 2024 |