| SERTARD 0531148 · TMA310109 | Sobeys Capital Incorporated | 35 Advertising | Registered | 1986 |
| SERIDERM 2264502 · design | an individual | 3 Cosmetics5 Pharmaceuticals10 Medical+4 | Pending | 2023 |
| SURTRAC 1561924 · TMA866558 | Master-Halco, Inc. | 6 Metal | Registered | 2013 |
| SIRTURO 1543339 · TMA906436 | Owner not shown | 5 Pharmaceuticals | Registered | 2015 |
| SARTORI 1500281 · TMA849288 | Sartori Company (a Wisconsin Corporation) | 29 Meat | Registered | 2013 |
| SRTR 0907930 | THE DEPARTMENT OF SUPPLY AND SERVICES | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1996 |
| SCRITTERZ 2005479 · TMA1260625 · design | Spin Master Ltd. | 28 Toys | Registered | 2024 |
| SCRITTERZ 2005032 · TMA1260623 | Spin Master Ltd. | 28 Toys | Registered | 2024 |
| SUREDRIVE 2119648 · TMA1195674 | Bridgestone Retail Operations, LLC | 12 Vehicles | Registered | 2023 |
| SHREDDER 2115797 · TMA1194728 | Bombardier Recreational Products Inc. | 12 Vehicles | Registered | 2023 |
| SARTORIUS 2067756 · TMA1209455 · design | an individual | 1 Chemicals5 Pharmaceuticals6 Metal+9 | Registered | 2023 |
| SARTIERI 1931 2052209 · TMA1149217 · design | an individual | 33 Wine | Registered | 2022 |
| SURETORQ 2018049 · TMA1101741 | SURETORQ INC. | 7 Machines8 Hand9 Electronics+1 | Registered | 2021 |
| SHEARWATER 1987707 · TMA1251919 | Shearwater Research Inc. | 9 Electronics10 Medical14 Jewellery | Registered | 2024 |
| SURETRAC 1972822 · TMA1239256 | Sunrise Medical (US) LLC | 9 Electronics12 Vehicles | Registered | 2024 |
| SHREDRBOYS 1962008 · TMA1283646 | 2603540 ALBERTA LTD. | 40 Treatment | Registered | 2025 |
| SARTORIALTO 1944207 · TMA1118821 | 7951531 Canada inc | 25 Clothing35 Advertising37 Construction+2 | Registered | 2022 |
| SUREDRIVE 1916079 · TMA1097583 | Ag Leader Technology, Inc. | 7 Machines | Registered | 2021 |
| SIRTOUR 1881798 · TMA1058607 · design | IGAO PLASTIC ELECTRONIC (SHENZHEN) CO. LTD | 9 Electronics | Registered | 2019 |
| Sortrain 1874578 · TMA1056552 | Owner not shown | 12 Vehicles | Registered | 2019 |
| Schréder 1807479 · TMA1111572 | SCHREDER, société anonyme (joint stock company organised and existing under the laws of Belgium) | 9 Electronics11 Lighting37 Construction+1 | Registered | 2021 |
| SHARETHROUGH 1778365 · TMA982335 | Sharethrough Inc. | 35 Advertising | Registered | 2017 |
| SURETRACK 1729632 · TMA960124 | R&P Surety, LLC | 35 Advertising36 Finance42 Science | Registered | 2017 |
| SCHRODERS 1703807 · TMA1000835 | Schroders plc | 35 Advertising36 Finance38 Telecommunications+2 | Registered | 2018 |
| SCHRODER 1703805 · TMA1000833 | Schroders plc | 35 Advertising36 Finance38 Telecommunications+2 | Registered | 2018 |