| SIMPLOT 1862550 · TMA1021155 · design | J.R. SIMPLOT COMPANY | 1 Chemicals29 Meat30 Coffee | Registered | 2019 |
| SIMPLOT 1862545 · TMA1021154 · design | J.R. SIMPLOT COMPANY | 1 Chemicals29 Meat30 Coffee | Registered | 2019 |
| SIMPLOT 1787415 · TMA995071 | J.R. SIMPLOT COMPANY | 1 Chemicals29 Meat30 Coffee | Registered | 2018 |
| SIMPLOT 0435131 · TMA256103 · design | J.R. SIMPLOT COMPANY | 1 Chemicals29 Meat | Registered | 1981 |
| SIMPLOT 0435130 · TMA252709 | J.R. SIMPLOT COMPANY | 1 Chemicals29 Meat | Registered | 1980 |
| SIMFLOW 2372313 | SIEMENS HEALTHCARE DIAGNOSTICS INC. | 9 Electronics35 Advertising | Pending | 2024 |
| SIMPLOT 2184677 | J.R. SIMPLOT COMPANY | 1 Chemicals5 Pharmaceuticals30 Coffee | Pending | 2022 |
| SYMBOLIC 2052377 · TMA1152936 · design | Symbolic Apparel Inc. | 25 Clothing | Registered | 2022 |
| Symbolic 2052346 · TMA1155116 | Symbolic Apparel Inc. | 25 Clothing | Registered | 2022 |
| SimbaLux 2015839 · TMA1195166 | Chenghiskhan, Inc | 6 Metal | Registered | 2023 |
| SIMPLICA 1356244 · TMA725948 · design | Vatti Corporation Limited | 7 Machines11 Lighting | Registered | 2008 |
| SIMPLICE 1325491 · TMA710725 | KOHLER CO. | 11 Lighting | Registered | 2008 |
| SUNBLOCK 0671218 · TMA392164 | PPG Architectural Finishes, Inc. | 1 Chemicals | Registered | 1991 |
| SIMPLILOCK 1945862 · TMA1228598 | SimpliSafe, Inc. | 9 Electronics25 Clothing42 Science+1 | Registered | 2024 |
| SimBiology 1274636 · TMA708896 | The MathWorks, Inc. (A Delaware Corporation) | 9 Electronics | Registered | 2008 |
| Simpl. 2249458 · TMA1268687 | Owner not listed | 3 Cosmetics5 Pharmaceuticals35 Advertising | Registered | 2024 |
| SIMPLE 2195373 · TMA1221645 | SIMPLE.LIFE APPS, INC. | 9 Electronics | Registered | 2024 |
| Simpla 2188562 · TMA1232720 | Simpla Foods Inc. | 29 Meat30 Coffee | Registered | 2024 |
| SIMPLIQ 2156438 · TMA1246295 · design | TOHATSU CORPORATION | 7 Machines9 Electronics | Registered | 2024 |
| SEMBLA 2130828 · TMA1222949 | Retention Brands AT LLC | 21 Housewares24 Textiles | Registered | 2024 |
| SIMPLEX 2116563 · TMA1222907 · design | an individual | 37 Construction | Registered | 2024 |
| SIMPL3 2103611 · TMA1185090 | Owner not shown | 32 Beer33 Wine | Registered | 2023 |
| SIMPLEX 2096048 · TMA1172664 | Simplex Services Inc. | 35 Advertising45 Legal | Registered | 2023 |
| SIMPLI5 2038822 · TMA1189155 | 5 Dynamics, LLC | 42 Science | Registered | 2023 |
| SIMPALO 1997998 · TMA1156942 | KOHLER CO. | 11 Lighting | Registered | 2022 |