| STUDEBAKER 0990950 · NFLD950 · design | STUDEBAKER-PACKARD CORPORATION, (a Michigan Corporation) | 12 Vehicles | Registered | 1920 |
| STUDEBAKER 2073660 · design | an individual | 3 Cosmetics8 Hand9 Electronics+2 | Pending | 2020 |
| STUDEBAKER 2068163 | an individual | 7 Machines12 Vehicles17 Rubber+2 | Pending | 2020 |
| STUDFINDER 2362586 | Agdia, Inc. | 1 Chemicals | Pending | 2024 |
| STATEFORM 2148819 · TMA1207524 | State Window Corporation | 40 Treatment42 Science | Registered | 2023 |
| Staywithperks 2136518 · TMA1198952 | an individual | 39 Transport43 Restaurants | Registered | 2023 |
| STATBLOCK 2016697 · TMA1278230 | APT Advanced Polymer Technology Corp. | 27 Carpets | Registered | 2024 |
| STEADIPACK 2015115 · TMA1157013 | NORBORD INC. | 19 Building | Registered | 2022 |
| STEADYBRIGHT 1990691 · TMA1140279 | Belgravia Wood Limited | 11 Lighting | Registered | 2022 |
| STATPLAS 1950250 · TMA1218917 | Terumo BCT, Inc. | 5 Pharmaceuticals10 Medical | Registered | 2024 |
| STATFLO 1940640 · TMA1152298 | Statflo Inc. | 25 Clothing42 Science | Registered | 2022 |
| STEADFAST 1933213 · TMA1154507 | STEADFAST CAPITAL MANAGEMENT, LP | 35 Advertising36 Finance | Registered | 2022 |
| STEADIFLOW 1929379 · TMA1119348 | Tandem Diabetes Care, Inc. | 10 Medical | Registered | 2022 |
| StudioBook 1919535 · TMA1160830 | an individual | 9 Electronics | Registered | 2023 |
| STUDYPUG 1868579 · TMA1077457 | Studypug (HK) Limited | 9 Electronics35 Advertising38 Telecommunications+2 | Registered | 2020 |
| STEADYFLUSH 1847367 · TMA1079963 | Globe Union Industrial Corp. | 11 Lighting | Registered | 2020 |
| StudyButton 1814285 · TMA1076175 | an individual | 9 Electronics16 Paper28 Toys+2 | Registered | 2020 |
| #SAYITWITHPEPSI 1745461 · TMA948925 | PEPSICO, INC. | 32 Beer | Registered | 2016 |
| STUDIOBSTYLE 1712726 · TMA1022675 | bstyle, Inc. | 42 Science45 Legal | Registered | 2019 |
| StudyForge 1681072 · TMA925448 | Kelowna Christian Center Society | 41 Education | Registered | 2016 |
| STEADFAST 1676189 · TMA967679 | Steadfast Group Limited | 35 Advertising36 Finance | Registered | 2017 |
| STATPATH 1639275 · TMA898336 | Flexaust Inc. | 7 Machines | Registered | 2015 |
| STATEPOINT 1616697 · TMA900621 | NORTEK AIR SOLUTIONS CANADA, INC. | 11 Lighting37 Construction | Registered | 2015 |
| stateofmind 1540678 · TMA873983 | State of Mind Limited | 25 Clothing | Registered | 2014 |
| STATOPEX 1522171 · TMA841941 · design | Intouch Insight Inc. | 35 Advertising | Registered | 2013 |