| SECRID 1798310 · TMA1087981 | Owner not shown | 9 Electronics14 Jewellery16 Paper+3 | Registered | 2020 |
| SECRID 1569534 · TMA866271 | an individual | 18 Leather | Registered | 2013 |
| SUCHARD 0216213 · UCA43539 | Kraft Foods Schweiz Holding GmbH | 29 Meat30 Coffee | Registered | 1952 |
| SOCRATIC 2047113 · design | Google LLC | 9 Electronics | Pending | 2020 |
| SECURID 2153673 · TMA1221356 · design | RSA Security LLC (a Delaware limited liability company) | 9 Electronics42 Science | Registered | 2024 |
| SOCRATA 1460895 · TMA836846 | Socrata, Inc. | 35 Advertising38 Telecommunications42 Science | Registered | 2012 |
| SIGRID 1014264 · TMA665687 | Sigrid Olsen LLC | 3 Cosmetics9 Electronics14 Jewellery+3 | Registered | 2006 |
| SECURID 0706503 · TMA415781 | RSA Security LLC | 9 Electronics | Registered | 1993 |
| SUCRETS 0169744 · UCA7528 | Insight Pharmaceuticals LLC (a Delaware limited liability company) | 5 Pharmaceuticals | Registered | 1936 |
| SECURID 1952385 | RSA Security LLC | 9 Electronics42 Science | Pending | 2019 |
| SOCRATE 0913018 | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2001 |
| SecretsID 2245032 · TMA1265663 | Owner not listed | 3 Cosmetics | Registered | 2024 |
| SECURITY-01 2208788 · TMA1242819 · design | Zhuhai Hengqin Ronghua Industrial Co.,Ltd | 9 Electronics17 Rubber | Registered | 2024 |
| segreto 2192138 · TMA1234801 | an individual | 20 Furniture | Registered | 2024 |
| SHOCARD 2178985 · TMA1186821 · design | Ping Identity Corporation | 9 Electronics42 Science45 Legal | Registered | 2023 |
| SIKARETARDER 2173207 · TMA1203233 | an individual | 1 Chemicals | Registered | 2023 |
| Sigurd 2158703 · TMA1209924 | Olight Group Co.Ltd | 11 Lighting | Registered | 2023 |
| ShoCard 2147806 · TMA1186756 | Ping Identity Corporation | 9 Electronics42 Science45 Legal | Registered | 2023 |
| SECURITYNOW 2134728 · TMA1194861 | Universal Services of America, LP | 42 Science45 Legal | Registered | 2023 |
| Saceridi 2105926 · TMA1216114 | an individual | 28 Toys | Registered | 2023 |
| SQUEAKHEARTS 2100169 · TMA1194628 | PetSmart Home Office LLC | 28 Toys | Registered | 2023 |
| SUGARTINA 2069240 · TMA1174625 | SPRING MEADOW NURSERY, INC. | 31 Fresh | Registered | 2023 |
| SAGARIT 2051120 · TMA1151812 · design | SAGARIT BATHROOM MANUFACTURER LIMITED | 11 Lighting19 Building20 Furniture | Registered | 2022 |
| Ssecretland 2039698 · TMA1141922 | Molblly Inc | 20 Furniture | Registered | 2022 |
| SOAKWORTHY 2013537 · TMA1260825 | SOAK WASH INC. | 35 Advertising | Registered | 2024 |