| STREETTECH 1963757 · TMA1158522 | FGX International Inc. | 9 Electronics | Registered | 2022 |
| Striatech 2342715 | Striatech GmbH | 9 Electronics10 Medical35 Advertising+1 | Pending | 2024 |
| STRETCHTECH 1495046 · TMA808090 | Layfield Group Limited | 16 Paper | Registered | 2011 |
| STRETCH 2111244 · TMA1278623 | Boston Dynamics, Inc. | 7 Machines9 Electronics12 Vehicles | Registered | 2024 |
| StarTech 1683765 · TMA911449 | JET Equipment & Tools Ltd./Equipement & Outillage Jet Ltee | 9 Electronics11 Lighting22 Ropes | Registered | 2015 |
| StarTech 1664230 · TMA928536 | JET Equipment & Tools Ltd./Equipement & Outillage Jet Ltee | 17 Rubber | Registered | 2016 |
| STRATECO 1653437 · TMA956807 | Strateco Partners Inc. | 9 Electronics35 Advertising41 Education | Registered | 2016 |
| STRUDEL 1500469 · TMA953451 | an individual | 28 Toys | Registered | 2016 |
| STRODEX 1456633 · TMA784034 | Hercules LLC | 1 Chemicals | Registered | 2010 |
| StrutTEK 1404546 · TMA755763 | Kingdom Auto Parts Ltd. | 12 Vehicles | Registered | 2009 |
| STERITECH 1091680 · TMA584378 | Rentokil North America, Inc. | 37 Construction | Registered | 2003 |
| STERITECH 1030619 · TMA552419 | Rentokil North America, Inc. | 37 Construction41 Education42 Science+1 | Registered | 2001 |
| STRATTEC 0808953 · TMA471776 · design | STRATTEC SECURITY CORPORATION | 6 Metal | Registered | 1997 |
| STRATTEC 0808952 · TMA472180 | STRATTEC SECURITY CORPORATION | 6 Metal | Registered | 1997 |
| STRETCH 0299521 · TMA151262 | Sherwin-Williams Canada Inc. | 2 Paints | Registered | 1967 |
| STARTECH 2124323 | ESTES INDUSTRIES, LLC, a legal entity | 28 Toys | Pending | 2021 |
| STRATUSTEEL 1799005 · TMA1003134 | Bull Moose Industries, Inc. | 6 Metal | Registered | 2018 |
| STREETREACH 0927615 | The Government of Manitoba | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2022 |
| STRATOTEGIC 2294876 · TMA1260351 · design | Stratotegic Inc. | 9 Electronics39 Transport42 Science | Registered | 2024 |
| STRATOTEGIC 2294875 · TMA1260350 | Stratotegic Inc. | 9 Electronics39 Transport42 Science | Registered | 2024 |
| STRATHVEGAS 2263262 · TMA1283232 · design | an individual | 42 Science | Registered | 2025 |
| Striatum 2252555 · TMA1271452 | an individual | 9 Electronics25 Clothing41 Education | Registered | 2024 |
| StarterSkid 2248106 · TMA1277593 | manufacture adria inc | 9 Electronics | Registered | 2024 |
| STARDUST 2246165 · TMA1263256 | Owner not listed | 3 Cosmetics | Registered | 2024 |
| STRETCHIT 2245911 · TMA1264477 · design | Stretchit, Inc. | 9 Electronics41 Education | Registered | 2024 |