| SOILPRINT 2083975 · design | an individual | 7 Machines9 Electronics42 Science | Pending | 2020 |
| SKILLPORT 1451693 · TMA813181 | Skillsoft Ireland Limited | 9 Electronics41 Education | Registered | 2011 |
| Silvering 2166275 · TMA1213445 | 13515109 Canada Inc | 3 Cosmetics | Registered | 2023 |
| SILOPREN 0368864 · TMA201483 | an individual | 17 Rubber24 Textiles | Registered | 1974 |
| SILAPRENE 0347353 · TMA186755 | Royal Adhesives and Sealants, LLC (a Delaware limited liability company) | 17 Rubber19 Building | Registered | 1972 |
| SILVERIST 2228361 | Jade Hero Brands LLC | 3 Cosmetics5 Pharmaceuticals | Pending | 2022 |
| SILVERFLINT 1867004 · TMA1053518 | JO-Y-JO Limited | 24 Textiles25 Clothing35 Advertising | Registered | 2019 |
| SILVERPOINT 1741249 · TMA1018042 | SILVERPOINT SYSTEMS LTD. | 9 Electronics35 Advertising37 Construction+2 | Registered | 2019 |
| SILVERSTAR 2282580 · TMA1243435 · design | Owner not listed | 39 Transport41 Education43 Restaurants | Registered | 2024 |
| SHELFER 2265028 · TMA1284942 · design | an individual | 21 Housewares | Registered | 2025 |
| SILVERLINE 2259488 · TMA1279334 | an individual | 31 Fresh | Registered | 2024 |
| SILVERLIGHT 2257955 · TMA1276442 | HENKEL CORPORATION | 3 Cosmetics | Registered | 2024 |
| SEALPER 2254054 · TMA1273047 | NYT International Holdings Inc | 7 Machines | Registered | 2024 |
| SALEBARBES 2242385 · TMA1276048 · design | 9394-8875 Québec Inc. | 3 Cosmetics9 Electronics14 Jewellery+6 | Registered | 2024 |
| SilverBay 2223171 · TMA1249892 | an individual | 28 Toys | Registered | 2024 |
| SILVERATI 2219312 · TMA1246957 | Kao Kabushiki Kaisha a/t/a Kao Corporation | 3 Cosmetics | Registered | 2024 |
| SILVERLINE 2208742 · TMA1241631 | 1000050219 Ontario Inc. | 5 Pharmaceuticals6 Metal8 Hand+6 | Registered | 2024 |
| SILVERBACK 2206115 · TMA1198280 | Paragon 28, Inc. | 10 Medical | Registered | 2023 |
| SOULFIRE 2206020 · TMA1227377 | Mythos Studios, LLC | 35 Advertising | Registered | 2024 |
| SILLBIRD 2201633 · TMA1186836 · design | an individual | 25 Clothing | Registered | 2023 |
| SOLUFORM 2193887 · TMA1278931 | an individual | 1 Chemicals | Registered | 2024 |
| Sleeprlo 2186999 · TMA1232502 | KAN ECOMMERCE LIMITED | 25 Clothing | Registered | 2024 |
| SILVER 2182295 · TMA1205481 · design | an individual | 32 Beer33 Wine | Registered | 2023 |
| SILVERBACK 2178891 · TMA1228295 | RAWLINGS SPORTING GOODS COMPANY, INC. | 28 Toys | Registered | 2024 |
| SILVERELLA 2177155 · TMA1261194 | Owner not shown | 2 Paints | Registered | 2024 |