| SOMATOM 0411548 · TMA232427 | an individual | 10 Medical | Registered | 1979 |
| Simtan 1401396 · TMA761145 | RICHWIN TORONTO CORPORATION | 5 Pharmaceuticals9 Electronics10 Medical+6 | Registered | 2010 |
| SUMITOMO 2058573 · TMA1108847 | Sumitomo Electric Industries, Ltd. | 7 Machines12 Vehicles17 Rubber | Registered | 2021 |
| SUMITOMO 2047324 · TMA1118128 | Sumitomo Electric Industries, Ltd. | 7 Machines9 Electronics12 Vehicles+2 | Registered | 2022 |
| SUMITOMO 1856520 · TMA1091861 · design | Sumitomo Rubber Industries, Ltd. | 12 Vehicles17 Rubber | Registered | 2021 |
| SUMITOMO 1789054 · TMA1100863 | Sumitomo Electric Industries, Ltd. | 7 Machines9 Electronics12 Vehicles+3 | Registered | 2021 |
| SIMOTION 1110347 · TMA618838 | an individual | 7 Machines9 Electronics | Registered | 2004 |
| SUMITOMO 0847557 · TMA537874 | SUMITOMO HEAVY INDUSTRIES, LTD. | 4 Oils6 Metal7 Machines+8 | Registered | 2000 |
| SUMITOMO 0548766 · TMA317531 | SUMITOMO CORPORATION | 12 Vehicles17 Rubber | Registered | 1986 |
| SUMITOMO 0547982 · TMA329933 | Sumitomo Rubber Industries, Ltd. | 28 Toys | Registered | 1987 |
| SUMITOMO 0379190 · TMA209378 | Sumitomo Chemical Co. Ltd | 1 Chemicals17 Rubber | Registered | 1975 |
| SUMITOMO 0355807 · TMA191050 | Sumitomo Electric Industries, Ltd. | 12 Vehicles | Registered | 1973 |
| SUMITOMO 0321834 · TMA167751 | Sumitomo Electric Industries, Ltd. | 6 Metal | Registered | 1970 |
| SUMITOMO 0311939 · TMA192077 | SUMITOMO ELECTRIC INDUSTRIES LIMITED | 6 Metal7 Machines20 Furniture | Registered | 1973 |
| SUMITOMO 0311030 · TMA174322 | SUMITOMO CHEMICAL COMPANY LIMITED | 2 Paints5 Pharmaceuticals | Registered | 1971 |
| SUMITOMO 2172149 | Sumitomo Pharma Co. Ltd. | 1 Chemicals | Pending | 2022 |
| SOMATOMY 2021496 | LUCKY LARK AND GILLY BEE PRODUCTIONS INC | 9 Electronics16 Paper41 Education+2 | Pending | 2020 |
| SAINTEM 1760483 · TMA1005006 | an individual | 33 Wine | Registered | 2018 |
| SANTOME' 1518868 · TMA819301 | Owner not shown | 33 Wine | Registered | 2012 |
| SKINATOMY 1761719 · TMA971726 | 1715424 Ontario Inc. DBA Skinatomy Laser Clinic | 44 Medical | Registered | 2017 |
| Sonateomber 2260186 · TMA1277972 | an individual | 14 Jewellery | Registered | 2024 |
| SOMYTING 2256363 · TMA1277644 | Shenzhen Beige New Technology Co. Ltd. | 24 Textiles | Registered | 2024 |
| soundynamic 2219441 · TMA1248423 | SHENZHEN COOLRAY TECH CO., LTD. | 9 Electronics | Registered | 2024 |
| soundynamic 2219440 · TMA1248422 | SHENZHEN COOLRAY TECH CO., LTD. | 11 Lighting | Registered | 2024 |
| SCENTNOTICE 2198643 · TMA1237515 | S.C. Johnson & Son, Inc. | 3 Cosmetics4 Oils5 Pharmaceuticals+1 | Registered | 2024 |