| SECURITYARD 2057565 | 1214778 B.C.LTD | 9 Electronics | Pending | 2020 |
| SECURITYLINK 0790314 · TMA493147 | Tyco Integrated Security LLC | 9 Electronics37 Construction42 Science | Registered | 1998 |
| SECURITY-01 2208788 · TMA1242819 · design | Zhuhai Hengqin Ronghua Industrial Co.,Ltd | 9 Electronics17 Rubber | Registered | 2024 |
| SECURITYNOW 2134728 · TMA1194861 | Universal Services of America, LP | 42 Science45 Legal | Registered | 2023 |
| SECURITRANS 1888524 · TMA1065172 | 3SI Security Systems, Inc. | 9 Electronics18 Leather | Registered | 2019 |
| SECURITY 1851284 · TMA1021720 | HOUGHTON CHEMICAL CORPORATION | 1 Chemicals3 Cosmetics | Registered | 2019 |
| SECURETABLEPAY 1828353 · TMA1008957 · design | Posera LTD. | 9 Electronics | Registered | 2018 |
| Security + 2.0 1673541 · TMA1019048 | The Chamberlain Group LLC | 7 Machines9 Electronics | Registered | 2019 |
| SECURITRON 1622264 · TMA909190 · design | Hanchett Entry Systems, Inc. | 7 Machines9 Electronics | Registered | 2015 |
| SECURITAS 1613553 · TMA930016 · design | an individual | 5 Pharmaceuticals6 Metal9 Electronics+11 | Registered | 2016 |
| SECURITYSTREET 1596153 · TMA877415 | Rapid7, LLC | 41 Education | Registered | 2014 |
| SECURITYNET 1501065 · TMA835660 | Securitynet Communications Ltd. | 7 Machines9 Electronics12 Vehicles+6 | Registered | 2012 |
| Security 360 1494999 · TMA831119 | Both Talent International Limited | 9 Electronics42 Science | Registered | 2012 |
| SECURITY+ 1422366 · TMA812001 | THE COMPUTING TECHNOLOGY INDUSTRY ASSOCIATION, INC. | 35 Advertising42 Science | Registered | 2011 |
| SECURITRANS 1342450 · TMA728384 | 3SI Security Systems, Inc. | 9 Electronics18 Leather | Registered | 2008 |
| SECURITAS 1277584 · TMA714845 | an individual | 6 Metal9 Electronics35 Advertising+6 | Registered | 2008 |
| SECURITY 1195054 · TMA625398 | Kimberly-Clark Worldwide, Inc. | 5 Pharmaceuticals | Registered | 2004 |
| SECURITYHOST 1099249 · TMA572959 | SECURIGUARD SERVICES LIMITED | 42 Science | Registered | 2003 |
| SECURITREE 1098926 · TMA571996 | AMENAZA TECHNOLOGIES LIMITED | 9 Electronics16 Paper41 Education+1 | Registered | 2002 |
| SECURITREE 1098925 · TMA571995 · design | AMENAZA TECHNOLOGIES LIMITED | 9 Electronics16 Paper41 Education+1 | Registered | 2002 |
| SÉCURITAIRE 0849409 · TMA498734 | Industrielle Alliance, Assurance auto et habitation inc. | 36 Finance | Registered | 1998 |
| SECRETARIAT 0831201 · TMA490157 | BRIDGEWAY SOFTWARE, INC. | 9 Electronics | Registered | 1998 |
| SECURITAS 0590770 · TMA350637 · design | an individual | 9 Electronics35 Advertising41 Education+2 | Registered | 1989 |
| SECURITY 0548804 · TMA346858 | BAYER CROPSCIENCE INC. | 1 Chemicals5 Pharmaceuticals | Registered | 1988 |
| SECURITYGUARD 2369302 | Owner not listed | 7 Machines9 Electronics10 Medical+1 | Pending | 2024 |