| SCISHARE 1776873 · TMA968805 · design | NINGBO SCISHARE TECHNOLOGY CO. LTD. | 11 Lighting | Registered | 2017 |
| SeaCare 2015662 · TMA1126275 | an individual | 3 Cosmetics | Registered | 2022 |
| SEYSARA 1923880 · TMA1122558 | Paratek Pharmaceuticals, Inc. | 5 Pharmaceuticals | Registered | 2022 |
| SEASHORE 1631956 · TMA940631 | an individual | 33 Wine | Registered | 2016 |
| SAGEWARE 1362222 · TMA768074 | Sage Dining Services, Inc. | 9 Electronics | Registered | 2010 |
| SHECARE 2193884 · TMA1219406 | an individual | 3 Cosmetics | Registered | 2024 |
| Siccaro 2070020 · TMA1266686 | an individual | 18 Leather24 Textiles25 Clothing | Registered | 2024 |
| SeQure 1989646 · TMA1100755 | Accurate Medical Therapeutics Ltd. | 10 Medical | Registered | 2021 |
| SEC3URE 1914438 · TMA1155776 · design | ZENGINE LIMITED | 9 Electronics35 Advertising36 Finance+5 | Registered | 2022 |
| SEECURE 1900952 · TMA1089202 | an individual | 9 Electronics | Registered | 2020 |
| SHIKAAR 1878534 · TMA1042542 | ZOOM IMPORTS INC.. | 25 Clothing | Registered | 2019 |
| Sécure + 1792001 · TMA989594 | Les constructions Delfosse inc. | 6 Metal19 Building | Registered | 2018 |
| SEACURE 1778046 · TMA995094 | Evoqua Water Technologies LLC | 11 Lighting40 Treatment | Registered | 2018 |
| SEAGUAR 1773035 · TMA703175 · design | Kureha Gohsen Co. Ltd. | 28 Toys | Registered | 2007 |
| SEAGUAR 1773034 · TMA703175 · design | Kureha Corporation | 16 Paper21 Housewares24 Textiles+2 | Registered | 2007 |
| SEKURE 1771527 · TMA1017726 | Sekisui Diagnostics, LLC | 1 Chemicals5 Pharmaceuticals9 Electronics+1 | Registered | 2019 |
| SWISHER 1763356 · TMA966295 | SWISHER INTERNATIONAL, INC. | 34 Tobacco | Registered | 2017 |
| SEKURE 1642041 · TMA964607 · design | Sekisui Diagnostics, LLC | 1 Chemicals5 Pharmaceuticals9 Electronics+1 | Registered | 2017 |
| SEACURE 1623313 · TMA936737 | Evoqua Water Technologies LLC | 11 Lighting | Registered | 2016 |
| SECURE 1621626 · TMA908529 | ISHIHARA SANGYO KAISHA, LTD. | 5 Pharmaceuticals | Registered | 2015 |
| SIKARO 1590547 · TMA880477 · design | SAMUELEX CORPORATION | 4 Oils9 Electronics34 Tobacco | Registered | 2014 |
| SIGARI 1581823 · TMA906776 | an individual | 36 Finance37 Construction | Registered | 2015 |
| SECURE 1577143 · TMA972612 | Altera International, Ltd. | 5 Pharmaceuticals | Registered | 2017 |
| SECURE 1511549 · TMA837146 | Cardinal Health 414, LLC | 10 Medical | Registered | 2012 |
| SEACURE 1242995 · TMA661158 | Proper Nutrition, Inc. (A Delware Corporation) | 5 Pharmaceuticals | Registered | 2006 |