| STEAMORE 2173912 · TMA1224569 · design | Shenzhen Future Maternal and Infant Technology Co. Ltd. | 28 Toys | Registered | 2024 |
| STEAMERS 1451725 · TMA782569 · design | an individual | 37 Construction | Registered | 2010 |
| STAMARK 0735529 · TMA432079 | 3M Company (a Delaware corporation) | 17 Rubber | Registered | 1994 |
| STEMRIX 2372227 · design | Stelo Biotechnology Co. Ltd. | 1 Chemicals | Pending | 2024 |
| STEAMERY 2098847 | ECITYDEALS LTD. | 35 Advertising36 Finance37 Construction+5 | Pending | 2021 |
| Steamery 1999625 | an individual | 3 Cosmetics8 Hand11 Lighting+1 | Pending | 2019 |
| SWEDAMART 1793312 · TMA988460 | Sweda Canada Inc. | 9 Electronics42 Science | Registered | 2018 |
| Steamwire 1669722 · TMA925087 | Sports Direct, Inc. | 9 Electronics41 Education | Registered | 2016 |
| SUEDEMARK 0501794 · TMA291162 | KURARAY CO. LTD. | 18 Leather24 Textiles25 Clothing | Registered | 1984 |
| SOTTOMARINO 1481482 · TMA835739 | Batteries & Bands, Inc. | 14 Jewellery | Registered | 2012 |
| STUNNRZ 2246236 · TMA1251631 | Owner not listed | 34 Tobacco | Registered | 2024 |
| SATINIOR 2226076 · TMA1251287 | SHENZHEN JIUHUO NETWORK TECHNOLOGY CO., LTD. | 25 Clothing | Registered | 2024 |
| Stimrite 2167901 · TMA1216380 | an individual | 1 Chemicals | Registered | 2023 |
| STOMARESTORE 2123582 · TMA1231033 | Implantica Patent Ltd | 9 Electronics10 Medical44 Medical | Registered | 2024 |
| STONERFOODS 2075977 · TMA1141972 | an individual | 30 Coffee | Registered | 2022 |
| STMR.36 1986557 · TMA1158670 | MARRIOTT WORLDWIDE CORPORATION | 43 Restaurants | Registered | 2023 |
| STONEWORKS 1891592 · TMA1113724 | Tate Access Floors, Inc. | 6 Metal | Registered | 2021 |
| STEAMWORKS 1888591 · TMA1052593 · design | an individual | 16 Paper21 Housewares24 Textiles+5 | Registered | 2019 |
| STUNNER 1843974 · TMA1012022 | Curoplant Company Ltd. | 31 Fresh | Registered | 2019 |
| STUNNER 1808572 · TMA997431 | Thriving Brands LLC | 3 Cosmetics | Registered | 2018 |
| STIMROUTER 1761476 · TMA1011813 | Bioness Inc. | 10 Medical | Registered | 2018 |
| STANROCK 1691156 · TMA919679 | Lake Road Group Limited | 33 Wine | Registered | 2015 |
| STONEWIRE 1679447 · TMA958100 | 1778761 Alberta Ltd. | 35 Advertising44 Medical | Registered | 2016 |
| StimWRX 1641013 · TMA890120 | an individual | 35 Advertising40 Treatment | Registered | 2014 |
| STONERODS 1584778 · TMA901745 | an individual | 41 Education | Registered | 2015 |