| SIMPLESYNC 2002797 · TMA1258873 | BOSE CORPORATION | 9 Electronics | Registered | 2024 |
| SIMPLISTOCK 1966501 · TMA1279698 · design | Retail Space Solutions LLC | 20 Furniture21 Housewares | Registered | 2024 |
| SIMPLISTICA 1945672 · TMA1084496 | Corn Products Development, Inc. | 1 Chemicals5 Pharmaceuticals | Registered | 2020 |
| SIMPLISTICS 1834544 · TMA1054268 | ArcBest IP Holdings, LLC | 35 Advertising37 Construction39 Transport | Registered | 2019 |
| SIMPLISPACE 2295212 | 15330599 CANADA INC | 20 Furniture | Pending | 2023 |
| SIMPLISTICS 2243312 | Owner not listed | 9 Electronics35 Advertising42 Science | Pending | 2023 |
| SIMPLINK 2140879 · TMA1209757 · design | Owner not shown | 5 Pharmaceuticals10 Medical | Registered | 2023 |
| SIMPLINK 2112357 · TMA1209643 | Owner not shown | 5 Pharmaceuticals10 Medical | Registered | 2023 |
| SIMPLISAFE 2104747 · TMA1219679 | SimpliSafe, Inc. | 9 Electronics11 Lighting42 Science | Registered | 2024 |
| SIMPLIST 2000630 · TMA1129020 · design | Simplist Technologies, Inc. | 9 Electronics35 Advertising42 Science | Registered | 2022 |
| SIMPLIFYA 1949940 · TMA1182130 · design | Simplifya, LLC | 9 Electronics42 Science | Registered | 2023 |
| Simplify 1880754 · TMA1105198 | Welspun India Limited | 20 Furniture24 Textiles27 Carpets | Registered | 2021 |
| SIMPLISAFE 1876815 · TMA1089165 · design | SimpliSafe, Inc. | 9 Electronics42 Science45 Legal | Registered | 2020 |
| SIMPLESPEC 1859999 · TMA1056916 | 3FORM, LLC | 42 Science | Registered | 2019 |
| SIMPLIST 1792517 · TMA1033162 | FRESENIUS KABI USA, LLC | 5 Pharmaceuticals | Registered | 2019 |
| SIMPLIFY 1770506 · TMA967051 | U.S. Bank, N.A. | 9 Electronics | Registered | 2017 |
| SIMPLISAFE 1723172 · TMA1034585 | SimpliSafe, Inc. | 9 Electronics42 Science | Registered | 2019 |
| SIMPLICON 1693599 · TMA981650 | an individual | 1 Chemicals | Registered | 2017 |
| SIMPLINANO 1650995 · TMA952679 | Biochrom Limited | 9 Electronics | Registered | 2016 |
| SimpliLine 1444781 · TMA803494 | Dallmer GmbH & Co. KG | 11 Lighting | Registered | 2011 |
| SIMPLINK 1318161 · TMA751517 · design | LG ELECTRONICS INC. | 9 Electronics | Registered | 2009 |
| SIMPLISAFE 2361834 · design | SimpliSafe, Inc. | 9 Electronics11 Lighting16 Paper+3 | Pending | 2024 |
| SIMPLESTACK 2096114 · TMA1187359 | School Specialty, LLC | 20 Furniture | Registered | 2023 |
| SIMPLISHADE 2074626 · TMA1138832 | Kerr Corporation | 5 Pharmaceuticals | Registered | 2022 |
| SIMPLIFEYES 1910908 · TMA1100540 | SynergEyes, Inc. | 9 Electronics | Registered | 2021 |