| SENETIC 1839303 · TMA1095013 · design | Owner not shown | 9 Electronics35 Advertising42 Science | Registered | 2021 |
| SKINETHIC 1357481 · TMA724626 | Owner not shown | 1 Chemicals | Registered | 2008 |
| SEENTHIS 2130973 · TMA1236939 | an individual | 35 Advertising38 Telecommunications42 Science | Registered | 2024 |
| SENOTEC 2079250 · TMA1240872 | Sears IP LLC | 5 Pharmaceuticals | Registered | 2024 |
| SENOTEC 2042482 · TMA1240842 | Sears IP LLC | 5 Pharmaceuticals | Registered | 2024 |
| SANTIC 1844404 · TMA1010860 · design | SANTIC QUAN ZHOU SPORTS CO.LTD | 25 Clothing | Registered | 2018 |
| SCENETAG 1797700 · TMA1021553 | ADEASE MEDIA RESEARCH SERVICES INC. | 9 Electronics35 Advertising42 Science+1 | Registered | 2019 |
| SYNETIK 1771182 · TMA984249 | Synetik design inc. | 10 Medical12 Vehicles20 Furniture+6 | Registered | 2017 |
| SEMATIC 1763365 · TMA1012108 · design | an individual | 6 Metal7 Machines20 Furniture+2 | Registered | 2019 |
| SYNETICS 1684326 · TMA1036743 | Toptech Systems, Inc. | 42 Science | Registered | 2019 |
| SENTIS 1534683 · TMA931694 | Sentis Market Research, Inc. | 35 Advertising | Registered | 2016 |
| SENTIS 1412934 · TMA765302 | Sentis Pty Ltd | 9 Electronics16 Paper41 Education | Registered | 2010 |
| SENTIS 1412931 · TMA765294 · design | Sentis Pty Ltd | 9 Electronics16 Paper41 Education | Registered | 2010 |
| SEMATIC 1038414 · TMA565845 · design | an individual | 6 Metal7 Machines9 Electronics+2 | Registered | 2002 |
| SIEMATIC 0380898 · TMA214452 · design | SIEMATIC MOBELWERKE GmbH & CO. | 20 Furniture | Registered | 1976 |
| SYNOTIC 0364737 · TMA197886 | Zoetis Services LLC | 5 Pharmaceuticals | Registered | 1974 |
| Syntic 2367314 | Owner not listed | 21 Housewares | Pending | 2024 |
| Sentix 2333933 | Instructional Technologies, Inc.7 | 42 Science | Pending | 2024 |
| SAENTIS 2298268 | Saentis Incorporated | 9 Electronics42 Science44 Medical | Pending | 2023 |
| SINETICA 2291843 | Owner not shown | 20 Furniture42 Science | Pending | 2023 |
| SYNETIQ 2189710 · design | Synetiq Limited | 1 Chemicals4 Oils6 Metal+16 | Pending | 2022 |
| SYNETIQ 2189681 | Synetiq Limited | 1 Chemicals4 Oils6 Metal+16 | Pending | 2022 |
| SEMEIOTICS 1280652 · TMA728073 | Semeiotics DesignWorkshop Canada Inc. | 35 Advertising42 Science | Registered | 2008 |
| SHOEMEDIC 2209237 · TMA1186840 · design | Shoemedic Inc. | 35 Advertising37 Construction | Registered | 2023 |
| Shoemedic 2118987 · TMA1186393 | Shoemedic Inc. | 37 Construction | Registered | 2023 |