| SHUNDIES 2161837 · TMA1212288 · design | an individual | 25 Clothing | Registered | 2023 |
| SWUNDIES 1991685 · TMA1200914 | Retail Royalty Company, a Nevada, U.S.A. corporation | 25 Clothing35 Advertising | Registered | 2023 |
| 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 |
| SENDS 2082430 | an individual | 3 Cosmetics5 Pharmaceuticals22 Ropes+5 | Pending | 2021 |
| SYNDIESEL 1515058 · TMA871303 | Expander Energy Inc. | 4 Oils40 Treatment42 Science | Registered | 2014 |
| SANDJEST 2223157 · TMA1249891 | an individual | 21 Housewares | Registered | 2024 |
| SENIDIKE 2170630 · TMA1225290 | an individual | 8 Hand | Registered | 2024 |
| SENTIOSK 2059533 · TMA1277095 | Classmethod Canada Inc. | 9 Electronics35 Advertising42 Science | Registered | 2024 |
| SUNDAISIES 2212748 · design | Pure Sunfarms Corp. | 3 Cosmetics5 Pharmaceuticals6 Metal+13 | Pending | 2022 |
| SUNDAISIES 2196742 | Pure Sunfarms Corp. | 3 Cosmetics5 Pharmaceuticals6 Metal+13 | Pending | 2022 |
| SYNDIC8 2122289 · TMA1219096 · design | SYNDIC8 DMS, LLC | 42 Science | Registered | 2024 |
| SENOTEC 2079250 · TMA1240872 | Sears IP LLC | 5 Pharmaceuticals | Registered | 2024 |
| SENOTEC 2042482 · TMA1240842 | Sears IP LLC | 5 Pharmaceuticals | Registered | 2024 |
| Sondiko 2006526 · TMA1133935 | Shenzhen Senluoxin Technology Co.Ltd | 11 Lighting | Registered | 2022 |
| SUNDAYS 1952931 · TMA1239159 · design | Sundays Furniture Ltd. | 11 Lighting14 Jewellery16 Paper+8 | Registered | 2024 |
| SANDTEX 1930797 · TMA1111448 | RIGIDIZED METALS CORPORATION | 6 Metal | Registered | 2021 |
| SENTEQ 1873757 · TMA1077132 · design | SENTEQ CO. LTD. a legal entity | 9 Electronics10 Medical28 Toys | Registered | 2020 |
| SANDTEC 1753900 · TMA968426 | an individual | 1 Chemicals | Registered | 2017 |
| SANDISK 1715375 · TMA952964 | SanDisk LLC | 9 Electronics35 Advertising37 Construction+1 | Registered | 2016 |
| SONDICO 1686356 · TMA1025885 | Sondico IP Limited | 5 Pharmaceuticals8 Hand9 Electronics+7 | Registered | 2019 |
| SYNTHES 1553051 · TMA923973 | DePuy Synthes, Inc. | 9 Electronics | Registered | 2015 |
| Sondico 1521524 · TMA834116 | Sondico IP Limited | 9 Electronics16 Paper18 Leather+4 | Registered | 2012 |
| SANDS 1515791 · TMA871550 | Las Vegas Sands Corp. | 35 Advertising | Registered | 2014 |