| STRATEGIC 1448148 · TMA771112 · design | STRATEGIC EQUITY CORPORATION | 36 Finance37 Construction | Registered | 2010 |
| STRATTICE 1368387 · TMA809586 | LIFECELL CORPORATION | 10 Medical | Registered | 2011 |
| STRATEGIS 0908574 | HER MAJESTY THE QUEEN IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF INDUSTRY | All goods and services | Protected | 1996 |
| STRATEGIS 0841113 · TMA488629 | HER MAJESTY THE QUEEN IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF INDUSTRY | 35 Advertising36 Finance41 Education+2 | Registered | 1998 |
| STRATEGIS 0841112 · TMA488510 · design | HER MAJESTY THE QUEEN IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF INDUSTRY | 35 Advertising36 Finance41 Education+2 | Registered | 1998 |
| STRATOTEGIC 2294876 · TMA1260351 · design | Stratotegic Inc. | 9 Electronics39 Transport42 Science | Registered | 2024 |
| STRATOTEGIC 2294875 · TMA1260350 | Stratotegic Inc. | 9 Electronics39 Transport42 Science | Registered | 2024 |
| STRATEVI 2160744 · TMA1277343 | Stratevi, LLC a California Limited Liability Corporation | 28 Toys35 Advertising41 Education+1 | Registered | 2024 |
| STRATÉYS 2023224 · TMA1266430 | BDG.STRATÉYS INC. | 45 Legal | Registered | 2024 |
| STRATERIAL 1967416 · TMA1283570 | DECATHLON, SA | 22 Ropes28 Toys | Registered | 2025 |
| STRATECO 1653437 · TMA956807 | Strateco Partners Inc. | 9 Electronics35 Advertising41 Education | Registered | 2016 |
| STRATEGIK 1493891 · TMA829522 · design | CLUB D'APPROVISIONNEMENT STRATEGIK INC. | 35 Advertising | Registered | 2012 |
| STRATEGOS 1491202 · TMA811060 | LENNOX INDUSTRIES INC. a Delaware corporation | 11 Lighting | Registered | 2011 |
| STRATÉGIE 0908691 | CANADIAN MEDICAL ASSOCIATION/ASSOCIATION MÉDICALE CANADIENNE | All goods and services | Protected | 1996 |
| STRATTEC 0808953 · TMA471776 · design | STRATTEC SECURITY CORPORATION | 6 Metal | Registered | 1997 |
| STRATTEC 0808952 · TMA472180 | STRATTEC SECURITY CORPORATION | 6 Metal | Registered | 1997 |
| STRATASHIELD 2096610 · TMA1154338 | Strata Innovations Pty Limited | 6 Metal19 Building | Registered | 2022 |
| STRATEGYLINK 1528590 · TMA865308 | GrainFox Corp. | 35 Advertising | Registered | 2013 |
| STRATALOGICA 1514600 · TMA871166 | Herff Jones, LLC | 16 Paper41 Education42 Science | Registered | 2014 |
| STRATASHIELD 2273947 | TNEMEC COMPANY, INC. | 2 Paints | Pending | 2023 |
| STRATODYNAMICS 1807051 · TMA993948 | STRATODYNAMICS AVIATION INC. | 7 Machines9 Electronics11 Lighting+6 | Registered | 2018 |
| STRATHVEGAS 2263262 · TMA1283232 · design | an individual | 42 Science | Registered | 2025 |
| STRETCHIT 2245911 · TMA1264477 · design | Stretchit, Inc. | 9 Electronics41 Education | Registered | 2024 |
| STRATUS 2227653 · TMA1252709 | STRAT-B Royalties Limited Partnership | 37 Construction | Registered | 2024 |
| STRATAAIR 2193802 · TMA1219986 | CEA INDUSTRIES INC. | 11 Lighting | Registered | 2024 |