| STENCIL 1804281 · TMA1025300 | Eclairage Axis Inc. | 11 Lighting | Registered | 2019 |
| Stencil1 1620862 · TMA888513 | Stencil1, Inc. | 2 Paints8 Hand9 Electronics+4 | Registered | 2014 |
| STEMCIRCLES 1474577 · TMA806829 | STEMCELL Technologies Canada Inc. | 1 Chemicals5 Pharmaceuticals | Registered | 2011 |
| STENCIL 1451323 · TMA798399 | Prodigy Design Limited | 9 Electronics42 Science | Registered | 2011 |
| STEMCELEX 1333256 · TMA792840 | Island Laboratories Inc. | 3 Cosmetics5 Pharmaceuticals | Registered | 2011 |
| STENCILMAIL 2112581 | iplastic inc. | 42 Science | Pending | 2021 |
| STENSIVAX 1922895 · TMA1067014 | Merck Sharp & Dohme LLC | 5 Pharmaceuticals | Registered | 2019 |
| STEMCELL 1975316 | STEMCELL Technologies Canada Inc. | 1 Chemicals5 Pharmaceuticals9 Electronics+2 | Pending | 2019 |
| STENOGRAPH 2325260 · TMA1250370 · design | an individual | 9 Electronics16 Paper38 Telecommunications+2 | Registered | 2024 |
| SAOTANGTUI 2236523 · TMA1269889 · design | Owner not listed | 43 Restaurants | Registered | 2024 |
| STEAMCRISP 2236399 · TMA1256903 | SharkNinja Operating LLC | 11 Lighting | Registered | 2024 |
| SIUDANGKA 2232700 · TMA1256610 | an individual | 21 Housewares | Registered | 2024 |
| SITTINGSUITS 2226994 · TMA1243359 | an individual | 24 Textiles25 Clothing | Registered | 2024 |
| SATONAZAL 2225919 · TMA1250211 | Sato Pharmaceutical Co. Ltd. | 5 Pharmaceuticals | Registered | 2024 |
| SKATINGER 2223091 · TMA1272702 · design | Weihai Skatinger Outdoor Products Co. Ltd. | 28 Toys | Registered | 2024 |
| SWTYMIKI 2212820 · TMA1243173 | Changsha Yuanshangcao Technology Co.,Ltd. | 20 Furniture21 Housewares | Registered | 2024 |
| StangH 2201338 · TMA1210198 | Hangzhou Sitang Technology Co.Ltd | 20 Furniture24 Textiles27 Carpets | Registered | 2023 |
| STANGH 2201336 · TMA1210197 · design | Hangzhou Sitang Technology Co.Ltd | 20 Furniture24 Textiles27 Carpets | Registered | 2023 |
| STEMZYME 2199520 · TMA1223875 | The Oncor Corp. | 44 Medical | Registered | 2024 |
| STEMZYME 2199490 · TMA1223873 | The Oncor Corp. | 3 Cosmetics | Registered | 2024 |
| STAINSHIELD 2189783 · TMA1232849 | RUBBERMAID INCORPORATED | 9 Electronics21 Housewares | Registered | 2024 |
| STINGRAY 2185577 · TMA1231486 | an individual | 9 Electronics | Registered | 2024 |
| SHOTENGAI 2183371 · TMA1269789 · design | DIGGOODS HONGKONG LIMITED | 9 Electronics35 Advertising | Registered | 2024 |
| Stingmon 2179795 · TMA1234557 | an individual | 21 Housewares | Registered | 2024 |
| STONCH 2170436 · TMA1221435 | an individual | 28 Toys | Registered | 2024 |