| STRONGUS 2242464 · TMA1262996 | Owner not listed | 30 Coffee | Registered | 2024 |
| STROMBO 1615148 · TMA950452 | SON HOUSE PRODUCTIONS INC. | 25 Clothing35 Advertising38 Telecommunications+6 | Registered | 2016 |
| STROMASYS 1395358 · TMA788487 · design | Stromasys SA | 9 Electronics42 Science | Registered | 2011 |
| STROMBOLI 1237592 · TMA792498 | Plaisirs Gastronomiques inc. | 30 Coffee43 Restaurants | Registered | 2011 |
| STROMM 2088543 · TMA1196479 · design | Stromm Industries Inc. | 7 Machines | Registered | 2023 |
| STROMAG 1930749 · TMA1146198 | Stromag GmbH, a legal entity | 7 Machines9 Electronics12 Vehicles | Registered | 2022 |
| STROMA 1791246 · TMA1023260 | Stroma Medical Corporation | 10 Medical | Registered | 2019 |
| STROMAE 1741883 · TMA986886 · design | an individual | 9 Electronics16 Paper25 Clothing+4 | Registered | 2017 |
| STROMER 1548841 · TMA936780 | Owner not shown | 12 Vehicles25 Clothing | Registered | 2016 |
| STROMAG 1204781 · TMA652371 · design | Stromag GmbH | 7 Machines9 Electronics12 Vehicles | Registered | 2005 |
| STROMER 2361957 · design | Owner not shown | 9 Electronics12 Vehicles | Pending | 2024 |
| STROMME 2303498 | an individual | 1 Chemicals2 Paints3 Cosmetics+2 | Pending | 2023 |
| STRÖM 2286570 | an individual | 12 Vehicles | Pending | 2023 |
| STROM !! 2038145 | LGI SOLUTIONS SANTÉ INC. LGI HEALTHCARE SOLUTIONS INC. | 9 Electronics35 Advertising42 Science | Pending | 2020 |
| Stormburst 2234761 · TMA1255350 | Vessi Footwear Ltd. | 25 Clothing | Registered | 2024 |
| STRONGBOX 2165438 · TMA1249595 | DIALOG FITZROY LIMITED | 6 Metal19 Building | Registered | 2024 |
| STRONGBOX 2069239 · TMA1175649 | SPRING MEADOW NURSERY, INC. | 31 Fresh | Registered | 2023 |
| STRONGBOW 2003543 · TMA1119642 | an individual | 32 Beer | Registered | 2022 |
| STRONGBOW 2003541 · TMA1119096 · design | an individual | 32 Beer33 Wine | Registered | 2022 |
| STROMCORE 1809953 · TMA1011758 | Stromcore Energy Inc. | 9 Electronics37 Construction42 Science | Registered | 2018 |
| STRONGBOX 1626465 · TMA951088 · design | StrongBox Data Solutions, Inc. | 9 Electronics | Registered | 2016 |
| STRONGBOY 1525710 · TMA844663 | 90744442 qué inc Distribution Ritchi | 25 Clothing | Registered | 2013 |
| STRONGBOX 1320236 · TMA749034 | StrongBox Data Solutions, Inc. | 9 Electronics | Registered | 2009 |
| STRONGBOW 0314574 · TMA163980 | an individual | 33 Wine | Registered | 1969 |
| STRONGLAS 0135709 · TMDA42182 | CANADIAN THERMOS PRODUCTS INC. | 21 Housewares | Registered | 1927 |