| SCITEC 1837125 · TMA1095033 | Owner not shown | 5 Pharmaceuticals6 Metal16 Paper+11 | Registered | 2021 |
| SCHITEC 2157841 · TMA1209879 | Shenzhen Shenchuang High tech Electronics Co.Ltd | 28 Toys | Registered | 2023 |
| SqiTech 2080780 · TMA1165974 | sqitech corp. | 9 Electronics | Registered | 2023 |
| SOTECH 2150506 · TMA1204306 · design | Sunmate Industrial Company Limited | 21 Housewares | Registered | 2023 |
| SOTECH 2150505 · TMA1204305 · design | Sunmate Industrial Company Limited | 8 Hand | Registered | 2023 |
| SOYTEX 1874307 · TMA1080286 · design | Solbar Ningbo Protein Technology Co. Ltd. | 1 Chemicals | Registered | 2020 |
| SCITEX 1815533 · TMA1000661 | Hewlett-Packard Development Company, L.P. | 7 Machines | Registered | 2018 |
| SKYTEC 1794973 · TMA1034653 | Globus (Shetland) Limited | 9 Electronics | Registered | 2019 |
| SITES 1655244 · TMA927297 | The Board of Regents of the University of Texas System | 37 Construction42 Science44 Medical | Registered | 2016 |
| SUITEQ 1613253 · TMA872286 | SuiteQ Inc. | 35 Advertising38 Telecommunications42 Science | Registered | 2014 |
| Sitek 1539100 · TMA882995 | Betek GmbH & Co. KG | 6 Metal7 Machines12 Vehicles+2 | Registered | 2014 |
| SITECH 1435176 · TMA791978 · design | Trimble Inc. | 37 Construction38 Telecommunications41 Education+1 | Registered | 2011 |
| SITECH 1434500 · TMA791977 | Trimble Inc. | 37 Construction38 Telecommunications41 Education+1 | Registered | 2011 |
| STEC 0847689 · TMA507041 | an individual | 9 Electronics16 Paper26 Sewing+3 | Registered | 1999 |
| SAITEK 0727505 · TMA447282 | an individual | 5 Pharmaceuticals9 Electronics14 Jewellery+2 | Registered | 1995 |
| SCITEX 0498653 · TMA298951 | Hewlett-Packard Development Company a Texas limited partnership | 9 Electronics16 Paper41 Education+1 | Registered | 1985 |
| SATEC 0332527 · TMA177253 | SATEC SYSTEMS, INC. | 1 Chemicals2 Paints5 Pharmaceuticals+4 | Registered | 1971 |
| SeaTec 2346282 | Vouvray Acquisition Limited | 9 Electronics35 Advertising37 Construction+5 | Pending | 2023 |
| SITECO 2334016 | Siteco GmbH | 9 Electronics11 Lighting37 Construction+1 | Pending | 2024 |
| Suiteg 2245694 | Owner not listed | 1 Chemicals29 Meat31 Fresh+4 | Pending | 2022 |
| SODEC 0920889 | Owner not shown | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2011 |
| SHOWTECH 1034358 · TMA562316 | GES EXPOSITION SERVICES (CANADA) LIMITED | 35 Advertising37 Construction38 Telecommunications+2 | Registered | 2002 |
| SHOWTEX 1829520 · TMA1054228 · design | Owner not shown | 20 Furniture22 Ropes24 Textiles | Registered | 2019 |
| Sewatec 1744814 · TMA948317 | KSB SE & Co. KGaA | 7 Machines | Registered | 2016 |
| SOUTHEX 0884407 · TMA513337 | dmg events (Canada) inc. | 35 Advertising36 Finance38 Telecommunications+5 | Registered | 1999 |