| SMC 1682057 · TMA1034615 | Singulex, Inc. | 1 Chemicals5 Pharmaceuticals9 Electronics+3 | Registered | 2019 |
| SMC 0412771 · TMA230588 | HOYA CORPORATION | 9 Electronics | Registered | 1978 |
| SMC 0915271 | Owner not shown | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2003 |
| SMC 0904678 | THE UNIVERSITY OF ST. MICHAEL'S COLLEGE | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1991 |
| SUMCOO 2121714 · TMA1186472 · design | Shenzhen Zhilian E-commerce Technology Co. Ltd. | 9 Electronics | Registered | 2023 |
| Somic 2185947 · TMA1231551 | an individual | 25 Clothing | Registered | 2024 |
| SOMIC 2143671 · TMA1217212 · design | SOMIC VerpackungsmaschinenGmbH & Co. KG | 7 Machines | Registered | 2024 |
| SOMIC 2014657 · TMA1146605 · design | GUANGDONG SOMIC TECHNOLOGY CO. LTD. | 9 Electronics | Registered | 2022 |
| SIMCA 1884506 · TMA1088718 | Owner not shown | 9 Electronics41 Education42 Science | Registered | 2020 |
| SEMCO 1833132 · TMA1014086 | SEMCO Energy, Inc. | 39 Transport | Registered | 2019 |
| SOMAC 1738594 · TMA1040276 | an individual | 6 Metal7 Machines9 Electronics+4 | Registered | 2019 |
| SYMIC 1505885 · TMA862239 · design | Eckart GmbH | 2 Paints17 Rubber | Registered | 2013 |
| SUMEX 1342753 · TMA719109 | Stryker Corporation a Michigan corporation | 10 Medical | Registered | 2008 |
| SIMCO 1240373 · TMA657634 | ILLINOIS TOOL WORKS INC. | 7 Machines9 Electronics | Registered | 2006 |
| SEMCO 0874235 · TMA566642 | SEMCO Energy, Inc. | 37 Construction39 Transport40 Treatment | Registered | 2002 |
| SIMCA 0796577 · TMA466450 · design | an individual | 41 Education42 Science44 Medical | Registered | 1996 |
| SAMCO 0740444 · TMA442531 | Samco Scientific LLC | 9 Electronics21 Housewares | Registered | 1995 |
| SIMEC 0720366 · TMA427593 | an individual | 7 Machines8 Hand12 Vehicles+1 | Registered | 1994 |
| SEMCO 0694519 · TMA412616 | SEMCO MFG. INC. | 6 Metal11 Lighting19 Building | Registered | 1993 |
| SEMCO 0573727 · TMA333465 | PRC-DeSoto International, Inc. | 8 Hand13 Firearms21 Housewares | Registered | 1987 |
| SUMAX 0302790 · TMA153316 | Diversey, Inc. (a Delaware corporation) | 3 Cosmetics | Registered | 1967 |
| SUMIK 2363786 | an individual | 6 Metal | Pending | 2024 |
| SUNCO 2344735 | Owner not listed | 35 Advertising36 Finance38 Telecommunications+1 | Pending | 2024 |
| SUNCO 2344733 · design | Owner not listed | 35 Advertising36 Finance38 Telecommunications+1 | Pending | 2024 |
| SUNCO 2263520 | Owner not listed | 9 Electronics11 Lighting35 Advertising | Pending | 2023 |