| STAYCAST 1860577 · TMA1122887 | SONIFI Solutions, Inc. | 9 Electronics38 Telecommunications42 Science | Registered | 2022 |
| SiteCast 0828343 · TMA497291 | SiteCast Construction Corp. | 35 Advertising37 Construction45 Legal | Registered | 1998 |
| SWEDCAST 0762201 · TMA474565 | SWEDCAN LUMICAN PLASTICS INC. | 17 Rubber | Registered | 1997 |
| SCOTCHCAST 0501022 · TMA293367 | 3M Company (a Delaware corporation) | 17 Rubber | Registered | 1984 |
| SCOTCHCAST 0246704 · TMA113379 | 3M Company (a Delaware corporation) | 9 Electronics | Registered | 1959 |
| SCOTCHCAST 0245330 · TMA112196 | 3M Company (a Delaware corporation) | 1 Chemicals8 Hand9 Electronics+1 | Registered | 1958 |
| staycasino 2115648 | an individual | 9 Electronics28 Toys41 Education | Pending | 2021 |
| SATCASE 1730211 · TMA1025993 | SATcase Ltd. | 9 Electronics38 Telecommunications | Registered | 2019 |
| SHOUTCAST 1335053 · TMA761235 | an individual | 9 Electronics38 Telecommunications | Registered | 2010 |
| SIDSYS 2233722 · TMA1254141 | SID SYSTEMS CO.LTD | 11 Lighting | Registered | 2024 |
| STICKAGRAPH 2201098 · TMA1242605 | an individual | 16 Paper | Registered | 2024 |
| SquadChess 2190121 · TMA1234645 | an individual | 9 Electronics28 Toys | Registered | 2024 |
| SEEDESIGN 2159723 · TMA1197118 | Inari Agriculture, Inc.Inari Agriculture Technology, Inc. | 42 Science | Registered | 2023 |
| Stycizom 2159240 · TMA1211044 | Shenzhen Baoyu Technology Co. Ltd. | 25 Clothing28 Toys | Registered | 2023 |
| SETKIQ 2156115 · TMA1191128 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2023 |
| STASHIOS 2131017 · TMA1176681 | SILVER FOX, LLC | 31 Fresh | Registered | 2023 |
| STACKHAWK 2126799 · TMA1170351 | StackHawk, Inc. | 42 Science | Registered | 2023 |
| STACYC 2091061 · TMA1149377 | StaCyc, Inc. | 12 Vehicles | Registered | 2022 |
| STAKYCET 2081092 · TMA1181515 | an individual | 9 Electronics | Registered | 2023 |
| STEGOSELECT 2051875 · TMA1126406 | Stego Industries, LLC | 17 Rubber | Registered | 2022 |
| STIKAGE 2046073 · TMA1145855 | an individual | 18 Leather25 Clothing | Registered | 2022 |
| STOCKWICK 2032572 · TMA1269456 · design | an individual | 36 Finance45 Legal | Registered | 2024 |
| 4SDESIGNS 2032275 · TMA1145712 · design | an individual | 18 Leather25 Clothing | Registered | 2022 |
| 4SDESIGNS 2030783 · TMA1145703 | an individual | 18 Leather25 Clothing | Registered | 2022 |
| SIDEKICK 2011525 · TMA1195155 | THE YANKEE CANDLE COMPANY, INC. | 3 Cosmetics21 Housewares | Registered | 2023 |