| SYSBEC 2207847 · TMA1246465 | an individual | 42 Science | Registered | 2024 |
| SAKOBS 2196622 · TMA1237293 | an individual | 9 Electronics | Registered | 2024 |
| SECUVOICE 2033458 · TMA1198498 | Secusmart GmbH | 9 Electronics42 Science | Registered | 2023 |
| Seaspecs 2013701 · TMA1179876 | Carmel & Co, Inc. | 9 Electronics | Registered | 2023 |
| SIXFIX 2004219 · TMA1106569 | AMDT Holdings, Inc. | 9 Electronics42 Science | Registered | 2021 |
| SWESBIZ 1979079 · TMA1133770 · design | an individual | 9 Electronics | Registered | 2022 |
| SEXYBACK 1978353 · TMA1223449 | Beyond Borders Products Inc | 20 Furniture24 Textiles35 Advertising | Registered | 2024 |
| Swishyfish 1974673 · TMA1121462 | an individual | 14 Jewellery | Registered | 2022 |
| SIXFIX 1797598 · TMA1057591 · design | AMDT Holdings, Inc. | 10 Medical | Registered | 2019 |
| SIGFOX 1713251 · TMA974100 | Owner not shown | 9 Electronics38 Telecommunications42 Science | Registered | 2017 |
| Sexposer 1627599 · TMA917275 | Owner not shown | 9 Electronics | Registered | 2015 |
| SWISSVAX 1555026 · TMA843523 | an individual | 3 Cosmetics | Registered | 2013 |
| SWISBAS 1538681 · TMA853685 · design | an individual | 2 Paints3 Cosmetics7 Machines+5 | Registered | 2013 |
| SECUPASTE 1538141 · TMA875770 | Salts Healthcare Limited | 5 Pharmaceuticals10 Medical | Registered | 2014 |
| SHOCKBOX 1537805 · TMA829977 | Impakt Protective Inc. | 9 Electronics | Registered | 2012 |
| SIGAPS 1529447 · TMA862426 · design | CENTRE HOSPITALIER REGIONAL UNIVERSITAIRE DE LILLE | 9 Electronics35 Advertising41 Education+1 | Registered | 2013 |
| SHOCKFUSION 1494027 · TMA849869 | Honeywell Safety Products USA, Inc. | 9 Electronics | Registered | 2013 |
| SHISHAVAC 1466694 · TMA813019 | Tannous Innovations, LLC | 34 Tobacco | Registered | 2011 |
| SWISSVBS 1458306 · TMA837109 | SWISS VIRTUAL BUSINESS SCHOOL INC. | 9 Electronics16 Paper35 Advertising+5 | Registered | 2012 |
| SQUEEZEBOX 1358804 · TMA806838 | Logitech International S.A. (a Swiss Corporation) | 9 Electronics28 Toys38 Telecommunications+1 | Registered | 2011 |
| SIKAFAST 1319115 · TMA701110 | an individual | 1 Chemicals17 Rubber | Registered | 2007 |
| SICPASEAL 1311740 · TMA788352 | SICPA HOLDING SA | 2 Paints9 Electronics16 Paper+3 | Registered | 2011 |
| SIXPACK 1230408 · TMA776942 | FCA US LLC | 12 Vehicles | Registered | 2010 |
| SKYCABS 1194492 · TMA701169 | Skycabs Limited | 12 Vehicles | Registered | 2007 |
| SICPAGUARD 1133463 · TMA606374 | an individual | 2 Paints6 Metal9 Electronics+5 | Registered | 2004 |