| SETRIX 1070909 · TMA601191 | SETRIX GmbH | 9 Electronics35 Advertising37 Construction+2 | Registered | 2004 |
| STRUX 1106523 · TMA612734 | GCP Applied Technologies Inc. | 19 Building22 Ropes | Registered | 2004 |
| STRUX 0440027 · TMA248420 | Acument Intellectual Properties, LLC a Delaware limited liability company | 6 Metal20 Furniture | Registered | 1980 |
| SkyTrix 1631833 · TMA896089 | Daydream Toys LLC | 28 Toys | Registered | 2015 |
| STRYAX 1974297 · TMA1149965 | an individual | 5 Pharmaceuticals | Registered | 2022 |
| STARIS 1939113 · TMA1125958 | Exmark Manufacturing Company Incorporated | 7 Machines | Registered | 2022 |
| STRIKE 1905935 · TMA1083171 · design | Strike Recovery & Performance Inc. | 44 Medical | Registered | 2020 |
| STRIKE 1887987 · TMA1091550 | SCOTT SPORTS SA | 12 Vehicles | Registered | 2021 |
| STRIKE 1777682 · TMA1056134 | Xenex Disinfection Services Inc. | 10 Medical37 Construction | Registered | 2019 |
| STRIKE 1615344 · TMA897502 · design | Strike Group Limited Partnership | 37 Construction40 Treatment45 Legal | Registered | 2015 |
| Strikt 1585549 · TMA880161 | an individual | 9 Electronics25 Clothing | Registered | 2014 |
| STAREX 1478995 · TMA794091 | LOTTE CHEMICAL CORPORATION | 1 Chemicals17 Rubber | Registered | 2011 |
| STRICT 1418064 · TMA757885 | iP Group Ltd. | 9 Electronics | Registered | 2010 |
| STRUXX 1389314 · TMA744717 | MEGA BRANDS INC. | 28 Toys | Registered | 2009 |
| STERIS 1360753 · TMA746376 | STERIS Corporation | 1 Chemicals10 Medical | Registered | 2009 |
| STORIS 1359639 · TMA742373 | Storis, Inc. | 9 Electronics | Registered | 2009 |
| STERIS 1207916 · TMA696122 | STERIS Corporation | 3 Cosmetics5 Pharmaceuticals9 Electronics+3 | Registered | 2007 |
| STRIKE 0695247 · TMA417845 | OAKLEY, INC. (A WASHINGTON CORPORATION) | 9 Electronics | Registered | 1993 |
| STERIS 0693145 · TMA415969 | STERIS Corporation | 5 Pharmaceuticals11 Lighting | Registered | 1993 |
| STRICK 0645155 · TMA378956 | Strick Trailers, LLC | 12 Vehicles | Registered | 1991 |
| STRICK 0644625 · TMA385726 · design | Strick Trailers, LLC | 6 Metal12 Vehicles | Registered | 1991 |
| STEREX 0602099 · TMA355952 | STEREX ELECTROLYSIS-INTERNATIONAL LIMITED | 9 Electronics | Registered | 1989 |
| STORIS 2325928 | Storis, Inc. | 42 Science | Pending | 2024 |
| STRICH 2325640 | Strich Technology CO, Limited | 15 Musical | Pending | 2024 |
| STEREX 2278295 · design | WINTERSTEIGER Sports GmbH | 11 Lighting21 Housewares40 Treatment | Pending | 2023 |