| SANPTENT 2227399 · TMA1251443 | Tianjin Sipulei Technology Co., Ltd. | 9 Electronics | Registered | 2024 |
| SYMPATEX 1413878 · TMA768216 · design | Sympatex Technologies GmbH | 9 Electronics10 Medical17 Rubber+4 | Registered | 2010 |
| SYMPATEX 1113010 · TMA592795 | Sympatex Technologies GmbH | 1 Chemicals3 Cosmetics | Registered | 2003 |
| SYMPATEX 0586267 · TMA347475 | Sympatex Technologies GmbH | 17 Rubber | Registered | 1988 |
| SYMPATEX 0557485 · TMA331686 | Sympatex Technologies GmbH | 24 Textiles25 Clothing27 Carpets | Registered | 1987 |
| SIMBATEX 2295210 | Owner not listed | 20 Furniture | Pending | 2023 |
| SUNPATIENS 1614671 · TMA887415 | Sakata Seed Corporation | 31 Fresh | Registered | 2014 |
| sampoet 2265861 · TMA1284996 | an individual | 21 Housewares | Registered | 2025 |
| SYMPATICO 1760589 · TMA1016670 | Briggs & Riley Travelware, LLC | 18 Leather | Registered | 2019 |
| SIMPAD 1493211 · TMA834860 | an individual | 9 Electronics10 Medical41 Education | Registered | 2012 |
| SMPTE 1420377 · TMA771293 · design | Society of Motion Picture and Television Engineers | 16 Paper35 Advertising41 Education+1 | Registered | 2010 |
| SMPTE 1420376 · TMA771333 | Society of Motion Picture and Television Engineers | 16 Paper35 Advertising41 Education+1 | Registered | 2010 |
| SYMPATICO 1142416 · TMA596649 | an individual | 9 Electronics16 Paper35 Advertising+5 | Registered | 2003 |
| SYMPATICO 0788006 · TMA468500 | an individual | 9 Electronics16 Paper38 Telecommunications | Registered | 1997 |
| SMPTE 2038455 · design | Society of Motion Picture and Television Engineers | 9 Electronics16 Paper35 Advertising+2 | Pending | 2020 |
| SQMPATHY 1995575 · design | Service Quality Measurement Group Inc. | 35 Advertising41 Education42 Science | Pending | 2019 |
| Sempiternal 2209701 | BLADT & CO. ApS | 18 Leather25 Clothing35 Advertising | Pending | 2022 |
| sunfedmiss 2253506 · TMA1274412 | Shenzhen Muyi Tianqi e-commerce Co. Ltd. | 28 Toys | Registered | 2024 |
| SHAMPOOHOTEL 2234831 · TMA1256736 | Shampoohotel Canada Inc. | 3 Cosmetics | Registered | 2024 |
| SYNOPTEK 2228921 · TMA1179661 | Synoptek Canada, Inc. | 35 Advertising42 Science | Registered | 2023 |
| SUNFIT 2215593 · TMA1204433 | an individual | 9 Electronics44 Medical | Registered | 2023 |
| SANIFIED 2214754 · TMA1248255 | PHOTOCATALYSIS INC. | 16 Paper | Registered | 2024 |
| SOMNOPÉDAGOGIE 2196128 · TMA1231696 | an individual | 41 Education | Registered | 2024 |
| SunBodz 2191355 · TMA1234698 | Owner not shown | 25 Clothing | Registered | 2024 |
| SONBADAS 2185576 · TMA1231485 | 13483487 Canada Inc. | 43 Restaurants | Registered | 2024 |