| SIMPLEAT 2249017 · TMA1266010 | Owner not listed | 29 Meat | Registered | 2024 |
| SIMPLEAT 2168477 · TMA1245065 | Glanbia Nutritionals Limited | 1 Chemicals42 Science | Registered | 2024 |
| SimplEmail 2183251 · TMA1230451 | 1429481 Ontario Inc.(does business as Pathway Communications) | 9 Electronics38 Telecommunications42 Science | Registered | 2024 |
| simplemark 2302750 | Hainan Sanlan Technology Holdings Co. Ltd. | 9 Electronics | Pending | 2023 |
| SimpleLAN 2183254 · TMA1231290 | 1429481 Ontario Inc.(does business as Pathway Communications) | 9 Electronics38 Telecommunications42 Science | Registered | 2024 |
| SIMPLELAB 2126437 · TMA1228799 | Simplelab, Inc. | 1 Chemicals42 Science | Registered | 2024 |
| SIMPLEWAY 2067779 · TMA1127575 · design | Xiaowei (Shanghai) Biotechnology Co.Ltd. | 21 Housewares | Registered | 2022 |
| SIMPLEWAY 2052037 · TMA1127527 · design | Xiaowei (Shanghai) Biotechnology Co.Ltd. | 3 Cosmetics | Registered | 2022 |
| SIMPLIMAX 1772824 · TMA1054798 | i4 Solutions, Minnesota Limited Liability Company | 9 Electronics | Registered | 2019 |
| SIMPLESET 1722607 · TMA1007324 | an individual | 9 Electronics | Registered | 2018 |
| SIMPLESET 1596730 · TMA916609 | 329design Inc. | 9 Electronics25 Clothing41 Education+3 | Registered | 2015 |
| SIMPLETAP 1596266 · TMA881738 | Belkin International, Inc. | 9 Electronics | Registered | 2014 |
| SimpleTax 1589860 · TMA859479 | SIMPLETAX SOFTWARE INC. | 9 Electronics35 Advertising | Registered | 2013 |
| SIMPLEXA 1470760 · TMA783699 | DIASORIN MOLECULAR LLC | 5 Pharmaceuticals9 Electronics10 Medical | Registered | 2010 |
| SIMPLYMAP 1465804 · TMA798748 | SimplyAnalytics, Inc | 35 Advertising36 Finance44 Medical | Registered | 2011 |
| SIMPLEPAC 1463072 · TMA852562 | Owner not shown | 21 Housewares | Registered | 2013 |
| Simpledad 2374099 | Fuzhou Feibao Network Technology Co. Ltd. | 20 Furniture | Pending | 2025 |
| SIMPLEFIT 2307414 | LF, LLC | 11 Lighting | Pending | 2024 |
| SIMPLESET 2268057 | Romac Industries, Inc. | 9 Electronics11 Lighting | Pending | 2023 |
| SIMPLERA 2131477 | an individual | 5 Pharmaceuticals | Pending | 2021 |
| Simpletaste 2160230 · TMA1218483 | 1byone Products Inc. | 7 Machines21 Housewares | Registered | 2024 |
| simpletaste 1878648 · TMA1067557 | 1byone Products Inc. | 11 Lighting21 Housewares | Registered | 2019 |
| SIMPLEHUMAN 1748110 · TMA1006658 | Simplehuman LLC | 20 Furniture | Registered | 2018 |
| SIMPLESTART 1685441 · TMA925914 | NCS MULTISTAGE, LLC | 6 Metal7 Machines37 Construction+1 | Registered | 2016 |
| SIMPLEHUMAN 1310857 · TMA743170 | Simplehuman LLC | 16 Paper20 Furniture21 Housewares | Registered | 2009 |