| Somic 2185947 · TMA1231551 | an individual | 25 Clothing | Registered | 2024 |
| SOMIC 2143671 · TMA1217212 · design | SOMIC VerpackungsmaschinenGmbH & Co. KG | 7 Machines | Registered | 2024 |
| SMACO 2117830 · TMA1184173 | Shenzhen CP-Link Electronic Co.Ltd. | 9 Electronics12 Vehicles28 Toys | Registered | 2023 |
| SOMIC 2014657 · TMA1146605 · design | GUANGDONG SOMIC TECHNOLOGY CO. LTD. | 9 Electronics | Registered | 2022 |
| SEMCO 1833132 · TMA1014086 | SEMCO Energy, Inc. | 39 Transport | Registered | 2019 |
| SOMAC 1738594 · TMA1040276 | an individual | 6 Metal7 Machines9 Electronics+4 | Registered | 2019 |
| SEMMCO 1600316 · TMA937797 | Normet International Ltd. | 12 Vehicles | Registered | 2016 |
| SOMSO 1578424 · TMA859815 | FOSHAN SOMSO RED WINE CO. LTD. | 30 Coffee32 Beer33 Wine | Registered | 2013 |
| SOMSO 1500941 · TMA820097 | Marcus Sommer SOMSO Modelle GmbH | 9 Electronics16 Paper | Registered | 2012 |
| SEMICO 1312347 · TMA702445 | Owner not shown | 1 Chemicals31 Fresh35 Advertising | Registered | 2007 |
| SIMCO 1240373 · TMA657634 | ILLINOIS TOOL WORKS INC. | 7 Machines9 Electronics | Registered | 2006 |
| SEMCO 0874235 · TMA566642 | SEMCO Energy, Inc. | 37 Construction39 Transport40 Treatment | Registered | 2002 |
| 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 |
| SEMICO 0446412 · TMA249914 · design | Owner not shown | 1 Chemicals30 Coffee31 Fresh | Registered | 1980 |
| "SONOCO" 0190729 · UCA24979 | SPC Resources, Inc. (a Delaware corporation) | 16 Paper | Registered | 1946 |
| Somiso 2061354 | an individual | 25 Clothing | Pending | 2020 |
| SYNECO 2011145 · design | an individual | 4 Oils | Pending | 2020 |
| SammoCo 1786619 · TMA973056 | SammoCo Holdings Ltd. | 9 Electronics35 Advertising36 Finance+7 | Registered | 2017 |
| SYNCO 2302827 · TMA1233053 | Shenzhen Nuoda Technology Co. Ltd. | 9 Electronics | Registered | 2024 |
| SENECA 2298464 · TMA1278010 | The Seneca College of Applied Arts and Technology | 9 Electronics14 Jewellery16 Paper+8 | Registered | 2024 |
| SINSCHE 2256660 · TMA1276262 · design | Shenzhen SINSCHE Technology Co. Ltd. | 9 Electronics | Registered | 2024 |
| Smoochiehuahua 2256339 · TMA1276205 | an individual | 30 Coffee35 Advertising | Registered | 2024 |