| SIRIKIT 1807264 · TMA1061031 | Apple Inc. | 9 Electronics42 Science | Registered | 2019 |
| SUREKIT 1659612 · TMA929637 | TAÏWAN FU HSING INDUSTRIAL CO. LTD | 6 Metal9 Electronics | Registered | 2016 |
| SORKUT 2357049 | Owner not listed | 24 Textiles | Pending | 2024 |
| surkat 2196019 | an individual | 25 Clothing | Pending | 2022 |
| SIRKit 360 1682349 · TMA962712 | SIRKit Ltd. | 7 Machines9 Electronics35 Advertising+3 | Registered | 2017 |
| SCARKAT 1378900 · TMA743141 · design | an individual | 9 Electronics16 Paper25 Clothing+1 | Registered | 2009 |
| SERAKET 0444389 · TMA269682 | PROPPER MANUFACTURING CO. INC. | 6 Metal10 Medical19 Building | Registered | 1982 |
| 'SAIRSET 0427383 · TMA241941 | A.P. GREEN INDUSTRIES, INC. | 19 Building | Registered | 1980 |
| SERKET6 2150905 | SERKET6 Technologies Inc. | 9 Electronics42 Science45 Legal | Pending | 2021 |
| SURGITE 0900054 · design | BROCK UNIVERSITY | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1965 |
| SKYROCKIT 1923193 · TMA1102528 | BAY PRODUCT DEVELOPMENT, LLC | 20 Furniture | Registered | 2021 |
| SURESHOT 2249426 · TMA1268678 | Owner not listed | 19 Building | Registered | 2024 |
| SURESTORE 2208147 · TMA1245193 | WINNEBAGO INDUSTRIES, INC. | 12 Vehicles | Registered | 2024 |
| sewherstyle 2125102 · TMA1169088 | an individual | 16 Paper | Registered | 2023 |
| SURESTORE 2097452 · TMA1163696 | WINNEBAGO INDUSTRIES, INC. | 12 Vehicles | Registered | 2023 |
| SourceTargeting 2094527 · TMA1222019 | KOSE CORPORATION | 3 Cosmetics | Registered | 2024 |
| SURESTANCE 2061056 · TMA1132385 | Future Motion, Inc. | 12 Vehicles | Registered | 2022 |
| SHARKWATER 2060900 · TMA1191514 | BCA Brewing Corporation of the Americas Inc. | 32 Beer33 Wine | Registered | 2023 |
| SURESTREAM 2032486 · TMA1118106 | Cobham Mission Systems Davenport LSS Inc. | 11 Lighting | Registered | 2022 |
| SARJUDO 2028221 · TMA1143606 | MEZZION PHARMA CO. LTD. | 5 Pharmaceuticals | Registered | 2022 |
| SURJET 2019224 · TMA1171911 | Corteva Agriscience LLC | 1 Chemicals | Registered | 2023 |
| SURESTATUS 2001429 · TMA1257441 | Premier Medical USA Corporation | 5 Pharmaceuticals | Registered | 2024 |
| SURGITEX 1979732 · TMA1281797 | STANDARD TEXTILE CO. INC. | 10 Medical37 Construction44 Medical | Registered | 2025 |
| SURESTRIKE 1938269 · TMA1140190 · design | Surestrike International, Inc. | 7 Machines | Registered | 2022 |
| SOURCED 1928638 · TMA1206767 | Sourced Group Worldwide Inc. a legal entity | 9 Electronics37 Construction42 Science+1 | Registered | 2023 |