| SECUREMOTE 1520818 · TMA831880 | Delphian Systems, LLC. | 9 Electronics | Registered | 2012 |
| SECUREMOTE 1048409 · TMA554664 | Check Point Software Technologies Ltd. | 9 Electronics | Registered | 2001 |
| SECURANT 1863524 · TMA1067265 | SKYLOTEC GMBH | 6 Metal9 Electronics | Registered | 2019 |
| SECUREMESH 1395473 · TMA828442 | Trilliant Networks Inc. | 9 Electronics | Registered | 2012 |
| SECUREHOME 2054170 | THE GOOD SAMARITAN SOCIETY, (A LUTHERAN SOCIAL SERVICE ORGANIZATION) | 9 Electronics37 Construction42 Science+1 | Pending | 2020 |
| SECURAM 2075558 · TMA1208275 · design | Nanjing Easthouse Electrical Co. Ltd. | 6 Metal9 Electronics | Registered | 2023 |
| SECURAM 2073258 · TMA1208259 · design | Nanjing Easthouse Electrical Co. Ltd. | 6 Metal9 Electronics | Registered | 2023 |
| securmedic 2034105 · TMA1173191 | Solutions Protexia Inc | 9 Electronics10 Medical11 Lighting+4 | Registered | 2023 |
| SECURIAN 1887774 · TMA1070451 · design | Securian Financial Group, Inc. | 35 Advertising36 Finance41 Education | Registered | 2020 |
| SEKURANT 1863525 · TMA1067262 | SKYLOTEC GMBH | 6 Metal9 Electronics | Registered | 2019 |
| SECURAMAX 1758326 · TMA1063986 | Pro-Vision, Inc. a legal entity | 9 Electronics | Registered | 2019 |
| SECURMARK 1378752 · TMA815320 | Hologic, Inc. | 10 Medical | Registered | 2012 |
| SÉCHERON 1275613 · TMA689422 | SECHERON SA | 9 Electronics12 Vehicles37 Construction+2 | Registered | 2007 |
| SECURIMAX 1016798 · TMA538176 | Corporation Starfrit Inc. / Starfrit Corporation Inc. | 8 Hand | Registered | 2000 |
| SECUROM 0873084 · TMA553911 | Sony Group Corporation | 9 Electronics | Registered | 2001 |
| SÉCURIMAX 0809544 · TMA482347 · design | THE EMPIRE LIFE INSURANCE COMPANY | 36 Finance | Registered | 1997 |
| SECURMARK 0679972 · TMA434197 | an individual | 35 Advertising40 Treatment42 Science | Registered | 1994 |
| SECURAMAX 0489766 · TMA285481 | Grayloc Products Canada Ltd. | 17 Rubber | Registered | 1983 |
| SACRAMENT 1970982 | an individual | 3 Cosmetics5 Pharmaceuticals9 Electronics+11 | Pending | 2019 |
| SWIGRANCE 2249693 · TMA1268731 | Owner not listed | 21 Housewares | Registered | 2024 |
| SUGARMATE 2153042 · TMA1185616 · design | Tandem Diabetes Care, Inc. | 9 Electronics42 Science | Registered | 2023 |
| SiGREEN 2152907 · TMA1189923 | an individual | 9 Electronics42 Science | Registered | 2023 |
| SUGARMATE 2151368 · TMA1185607 | Tandem Diabetes Care, Inc. | 9 Electronics42 Science | Registered | 2023 |
| SUKRIN 2141407 · TMA1247928 | an individual | 30 Coffee | Registered | 2024 |
| secroma 2125409 · TMA1187680 | an individual | 25 Clothing26 Sewing | Registered | 2023 |