| STYROCLEAN 1682365 · TMA1031280 | Sospito Scientifica (CY) Ltd | 1 Chemicals6 Metal7 Machines+9 | Registered | 2019 |
| STYROCLEAR 1374957 · TMA744841 | INEOS Styrolution Europe GmbH | 1 Chemicals | Registered | 2009 |
| STARCHEF 2109461 · TMA1179225 · design | Huizhou Huanqiu Electronic Commerce Co. Ltd. | 21 Housewares | Registered | 2023 |
| STERICHEK 1313351 · TMA693143 | Hach Company | 1 Chemicals | Registered | 2007 |
| Sterochol 1272084 · TMA705903 | celt corporation | 5 Pharmaceuticals35 Advertising | Registered | 2008 |
| STEROCEL 1208315 · TMA671870 | celt corporation | 5 Pharmaceuticals35 Advertising | Registered | 2006 |
| STYROCUTTER 1505214 · TMA819457 | FloraCraft Corporation | 7 Machines | Registered | 2012 |
| STORECHECK 1983545 · TMA1269268 · design | Owner not shown | 35 Advertising42 Science | Registered | 2024 |
| STROCS 2252280 · TMA1270230 | an individual | 25 Clothing | Registered | 2024 |
| STARCHIE 2147999 · TMA1188712 | Home Tech Innovation, Inc. | 11 Lighting | Registered | 2023 |
| STYROK 1928147 · TMA1111072 | Styrok Inc | 19 Building37 Construction39 Transport | Registered | 2021 |
| STRACE 1794409 · TMA981289 · design | DDK Group Co. Ltd. Taiwan Branch | 12 Vehicles | Registered | 2017 |
| STARCH 1505533 · TMA847515 | Starch Research Services Limited | 9 Electronics16 Paper35 Advertising+1 | Registered | 2013 |
| STYROGLUE 1505211 · TMA813848 | FloraCraft Corporation | 16 Paper | Registered | 2011 |
| STARCAM 1384016 · TMA753899 | Global Marketing Resources, Inc. | 42 Science45 Legal | Registered | 2009 |
| STARCAM 1349014 · TMA747067 | Global Marketing Resources, Inc. | 38 Telecommunications | Registered | 2009 |
| STARCOMM 1326687 · TMA758257 | Stallion Infrastructure Services, Ltd. | 9 Electronics12 Vehicles38 Telecommunications | Registered | 2010 |
| STYROGRIT 1149430 · TMA607825 | BEAVER PLASTICS LTD. | 11 Lighting | Registered | 2004 |
| STARCOM 1010901 · TMA694556 | MMS USA Holdings, Inc. c/o The Corporation Trust Company | 35 Advertising | Registered | 2007 |
| STYROSPAN 0579606 · TMA352929 | DDP Specialty Electronic Materials US, LLC | 17 Rubber | Registered | 1989 |
| STYROSPAN 0247112 · TMA113626 | DDP Specialty Electronic Materials US, LLC | 1 Chemicals | Registered | 1959 |
| STORYCHAT 2335053 | an individual | 41 Education | Pending | 2024 |
| STRICH 2325640 | Strich Technology CO, Limited | 15 Musical | Pending | 2024 |
| styrogo 2264195 | StyroGo Canada Inc. | 40 Treatment | Pending | 2023 |
| STRUCKET 2177097 | Mango Street Holdings Pty Ltd | 11 Lighting21 Housewares35 Advertising | Pending | 2022 |