| Sumaforme 1195740 · TMA636384 | Laboratoire Holizen inc. | 9 Electronics29 Meat | Registered | 2005 |
| SAMBORO 0567674 · TMA333107 | SAMBORO LUGGAGES (CANADA) CORP. | 12 Vehicles18 Leather24 Textiles | Registered | 1987 |
| SUMIBARK 0359393 · TMA192835 | SUMITOMO CHEMICAL COMPANY LIMITED | 5 Pharmaceuticals | Registered | 1973 |
| SUNBORN 2090541 · design | an individual | 6 Metal12 Vehicles35 Advertising+4 | Pending | 2021 |
| SEMAPHORE 1886359 · TMA1090716 | Semaphore Solutions Inc. | 9 Electronics35 Advertising42 Science | Registered | 2020 |
| SEMAPHORE 0992915 · NFLD2915 | INTERNATIONAL MILLING COMPANY INC. (A NEW YORK CORPORATION) | 30 Coffee | Registered | 1947 |
| SONNEBORN 0686112 · TMA416306 | Sonneborn, LLC | 1 Chemicals2 Paints3 Cosmetics+2 | Registered | 1993 |
| SONNEBORN 0478368 · TMA270950 | Sonneborn, LLC | 1 Chemicals3 Cosmetics4 Oils+2 | Registered | 1982 |
| SUMABRITE 0341680 · TMA182620 | Diversey, Inc. (a Delaware corporation) | 3 Cosmetics | Registered | 1972 |
| SEMAPHORE 2165542 | an individual | 5 Pharmaceuticals42 Science | Pending | 2021 |
| ShineBurky 2259575 · TMA1279341 | Shenzhen RuiQi Network Technology Co. Ltd | 11 Lighting | Registered | 2024 |
| SINOPHARM 2257453 · TMA1276338 · design | China Sinopharm Healthcare Industry Company | 3 Cosmetics5 Pharmaceuticals29 Meat+3 | Registered | 2024 |
| SnapFresh 2207655 · TMA1241530 | Ningbo Winbay Technology Co.,Ltd. | 7 Machines | Registered | 2024 |
| Sinipart 2200298 · TMA1237659 | Guangzhou Yvexiu mujia Trading Co., Ltd | 25 Clothing | Registered | 2024 |
| SKINFIRST 2182876 · TMA1230369 | The Gillette Company LLC | 8 Hand | Registered | 2024 |
| SANPRA 2174748 · TMA1268383 | NIPPON INSTRUMENTS CORPORATION | 9 Electronics | Registered | 2024 |
| Sinborn 2167836 · TMA1213535 | Shenzhen Huoshi Network Technology Co. Ltd. | 28 Toys | Registered | 2023 |
| SIEMPRE 2167614 · TMA1206594 | Siempre Spirits Limited | 33 Wine | Registered | 2023 |
| SOMNOPRESS 2159379 · TMA1218436 | VITAZAN HERBS & VITAMINS INC. | 5 Pharmaceuticals | Registered | 2024 |
| SEMPERLEX 2158776 · TMA1272471 | Owner not shown | 45 Legal | Registered | 2024 |
| SINOPARCEL 2144594 · TMA1201695 · design | Owner not shown | 11 Lighting | Registered | 2023 |
| SNAPWIRELESS 2143341 · TMA1183206 | SNAPWIRELESS PTY LTD | 9 Electronics | Registered | 2023 |
| SYMBRAVO 2141776 · TMA1184352 | Axsome Therapeutics, Inc. | 5 Pharmaceuticals | Registered | 2023 |
| SIMVORZIAR 2141436 · TMA1184319 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2023 |
| SYNPRINT 2140257 · TMA1238175 | Owner not shown | 1 Chemicals | Registered | 2024 |