| StopRite 1952709 · TMA1148300 | Genuine Parts Company | 12 Vehicles | Registered | 2022 |
| STOPRIME 1813478 · TMA998201 | Sto SE & Co. KGaA, a Germany limited partnership | 2 Paints | Registered | 2018 |
| STOPRAIL 1298004 · TMA707693 | Owner not shown | 9 Electronics | Registered | 2008 |
| STOPPER 0681748 · TMA526488 | SAFETY TECHNOLOGY INTERNATIONAL, INC. | 9 Electronics | Registered | 2000 |
| STOPFOR 0396069 · TMA222639 | an individual | 9 Electronics | Registered | 1977 |
| StopRuns 2038035 | ATLIN CAPITAL INC. | 5 Pharmaceuticals | Pending | 2020 |
| STEPRAGE 2202230 · TMA1239816 | Fuzhou Sifei Electronic Commerce Co., Ltd. | 21 Housewares | Registered | 2024 |
| STUBBORNLY 2190097 · TMA1237185 | Sheertex Inc. | 25 Clothing35 Advertising | Registered | 2024 |
| SCOUTPRO 2138825 · TMA1200212 | TearLab Research, Inc. | 10 Medical | Registered | 2023 |
| STAYFROSTY 2129525 · TMA1174034 | Qore Performance Inc. | 21 Housewares | Registered | 2023 |
| STUBYRNA 2091047 · TMA1222006 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2024 |
| STPROTECT 2087098 · TMA1157506 | an individual | 9 Electronics | Registered | 2022 |
| SkatePro 2036139 · TMA1202489 | an individual | 12 Vehicles25 Clothing28 Toys | Registered | 2023 |
| SKATEBOARD 2023330 · TMA1269398 | Rivian IP Holdings, LLC | 7 Machines9 Electronics12 Vehicles | Registered | 2024 |
| StepRising 2015825 · TMA1141168 | Qingdao Kebek Tire Co. Ltd | 12 Vehicles | Registered | 2022 |
| STOVEROTEC 2008411 · TMA1226517 | Verotec GmbH | 6 Metal19 Building | Registered | 2024 |
| STEPPROPEL 1987853 · TMA1254512 | TBL Licensing LLC | 25 Clothing | Registered | 2024 |
| STEFORNO 1923910 · TMA1137994 | Steforno La Fabrique Inc. | 11 Lighting29 Meat30 Coffee+1 | Registered | 2022 |
| SHADOWBRINGERS 1911182 · TMA1105733 | Kabushiki Kaisha Square Enix (also trading as Square Enix Co. Ltd.) | 9 Electronics16 Paper28 Toys+1 | Registered | 2021 |
| SIDEBAR 1804301 · TMA997916 | 2464017 Ontario Inc. | 41 Education43 Restaurants | Registered | 2018 |
| Shadowverse 1797095 · TMA998560 | Cygames, Inc. | 9 Electronics35 Advertising41 Education | Registered | 2018 |
| SHADOWVERSE 1787554 · TMA998561 · design | Cygames, Inc. | 9 Electronics35 Advertising41 Education | Registered | 2018 |
| #SEEDIFFERENT 1754582 · TMA955129 · design | Canadian Centre for Diversity and Inclusion Centre Canadien Pour La Diversité et L'Inclusion | 16 Paper21 Housewares25 Clothing+3 | Registered | 2016 |
| STEBRONIX 1738935 · TMA1034510 | GLAXO GROUP LIMITED | 5 Pharmaceuticals44 Medical | Registered | 2019 |
| SATIPHARM 1693789 · TMA1051235 | an individual | 3 Cosmetics5 Pharmaceuticals9 Electronics+8 | Registered | 2019 |