| SIOZEN 2071115 | SIOZEN INC. | 7 Machines | Pending | 2020 |
| SIZEN 2147432 · TMA1216277 | OMEX AGRIFLUIDS, INC. | 1 Chemicals | Registered | 2023 |
| SKYZEN 1905194 · TMA1106147 | Owner not shown | 9 Electronics | Registered | 2021 |
| SIZEON 1488603 · TMA855666 | Allegro Nutrition Worldwide Limited | 5 Pharmaceuticals | Registered | 2013 |
| SAIZEN 1411511 · TMA767207 · design | an individual | 5 Pharmaceuticals | Registered | 2010 |
| SHOSEN 1409980 · TMA806180 | an individual | 3 Cosmetics4 Oils9 Electronics+16 | Registered | 2011 |
| SAIZEN 0562845 · TMA476676 | an individual | 5 Pharmaceuticals | Registered | 1997 |
| Soign 1987777 · TMA1130345 | 1179352 B.C. Ltd. | 3 Cosmetics35 Advertising | Registered | 2022 |
| SOKON 1886334 · TMA1069654 · design | Chongqing Sokon Industry Group Stock Co. Ltd. | 12 Vehicles37 Construction | Registered | 2020 |
| SUSEN 1706388 · TMA980134 · design | SEEANNA ENTERPRISE LTD. | 9 Electronics14 Jewellery16 Paper+1 | Registered | 2017 |
| SOCAN 1570919 · TMA900830 · design | SOCIETY OF COMPOSERS, AUTHORS AND MUSIC PUBLISHERS OF CANADA - SOCIETE CANADIENNE DES AUTEURS, COMPOSITEURS ET EDITEURS DE MUSIQUE | 16 Paper21 Housewares24 Textiles+5 | Registered | 2015 |
| SOCAN 1178948 · TMA629532 · design | SOCIETY OF COMPOSERS, AUTHORS AND MUSIC PUBLISHERS OF CANADA - SOCIETE CANADIENNE DES AUTEURS, COMPOSITEURS ET EDITEURS DE MUSIQUE | 9 Electronics16 Paper21 Housewares+8 | Registered | 2005 |
| SOCAN 1178947 · TMA629518 | SOCIETY OF COMPOSERS, AUTHORS AND MUSIC PUBLISHERS OF CANADA - SOCIETE CANADIENNE DES AUTEURS, COMPOSITEURS ET EDITEURS DE MUSIQUE | 9 Electronics16 Paper24 Textiles+7 | Registered | 2005 |
| SOCAN 0650043 · TMA391584 · design | SOCIETY OF COMPOSERS, AUTHORS AND MUSIC PUBLISHERS OF CANADA - SOCIETE CANADIENNE DES AUTEURS, COMPOSITEURS ET EDITEURS DE MUSIQUE | 41 Education | Registered | 1991 |
| SAGEN 2035874 | Sagen MI Canada Inc. | 36 Finance | Pending | 2020 |
| SCIOXEN 1900395 · TMA1081814 | Altra Health Inc. | 5 Pharmaceuticals29 Meat30 Coffee+4 | Registered | 2020 |
| SIGONNA 2253887 · TMA1233041 | SIGONNA LLC | 9 Electronics | Registered | 2024 |
| SIXIM 2248049 · TMA1267264 · design | ZHEJIANG AMRIY XIANTI GARMENTS CO. LTD | 25 Clothing | Registered | 2024 |
| Seaskin 2247756 · TMA1265973 | Owner not listed | 9 Electronics25 Clothing | Registered | 2024 |
| SIXIM 2239046 · TMA1259860 · design | ZHEJIANG AMRIY XIANTI GARMENTS CO. LTD | 25 Clothing | Registered | 2024 |
| SUGON 2212826 · TMA1245272 · design | Foshan Cengon Electronic Intelligent Equipment Co., Ltd. | 7 Machines | Registered | 2024 |
| SQUISHEEN 2184207 · TMA1230535 | Pusheen Corporation | 28 Toys | Registered | 2024 |
| SAUCONY 2174872 · TMA1278817 | Saucony, Inc. | 9 Electronics35 Advertising41 Education | Registered | 2024 |
| SCICON 2171523 · TMA1253683 | an individual | 9 Electronics12 Vehicles | Registered | 2024 |
| SKYOCEAN 2169564 · TMA1220627 | an individual | 9 Electronics | Registered | 2024 |