| STMT 2081297 | Horizon Group USA, Inc. | 3 Cosmetics4 Oils14 Jewellery+1 | Pending | 2021 |
| STEAMTEC 2261817 · TMA1281300 · design | Shenzhen TOLO Leisure Equipment Co. Limited | 11 Lighting | Registered | 2025 |
| SITEMATE 2033515 · TMA1150367 | Sitemate Technologies IP Pty Ltd | 9 Electronics42 Science | Registered | 2022 |
| STEMTREE 1965839 · TMA1231887 | Stemtree Franchising, LLC DBA Stemtree Education Center | 41 Education | Registered | 2024 |
| SITEMATE 1620189 · TMA950425 | an individual | 1 Chemicals6 Metal7 Machines+4 | Registered | 2016 |
| STEMTECH 1537349 · TMA836731 · design | StemTech HealthSciences, Inc. | 3 Cosmetics5 Pharmaceuticals35 Advertising+1 | Registered | 2012 |
| STEMTECH 1275737 · TMA787083 | StemTech HealthSciences, Inc. | 5 Pharmaceuticals | Registered | 2011 |
| STEAMATE 0537894 · TMA310138 | BL Technologies, Inc. | 2 Paints | Registered | 1986 |
| STEEMIT 1848245 · TMA1035124 | Steemit, Inc | 42 Science45 Legal | Registered | 2019 |
| STIMTEC 1486831 · TMA814048 | 3176282 Canada Ltd. | 10 Medical | Registered | 2011 |
| STENTOR 1289200 · TMA700611 | Stentor Music Co. Ltd. | 15 Musical | Registered | 2007 |
| STENTOR 0696759 · TMA426434 | STENTOR RESOURCE CENTRE INC. | 38 Telecommunications | Registered | 1994 |
| STEAMATIC 1771338 · TMA997391 | STEAMATIC, LLC | 37 Construction40 Treatment | Registered | 2018 |
| STEAMTECH 1688008 · TMA975117 | Conair LLC | 8 Hand | Registered | 2017 |
| STEAMTAPE 0511448 · TMA293649 | STERIS Corporation | 1 Chemicals5 Pharmaceuticals23 Yarns | Registered | 1984 |
| STANDECZA 2171581 · TMA1200586 | Owner not shown | 5 Pharmaceuticals38 Telecommunications42 Science+1 | Registered | 2023 |
| StoneDam 2161295 · TMA1211167 | Dongguan Heyi Trading Co. Ltd. | 28 Toys | Registered | 2023 |
| STENDMAR 2125154 · TMA1170313 · design | BESCO USA, INC. | 20 Furniture | Registered | 2023 |
| SoTomaté!! 2119066 · TMA1201392 | Tomaté!! Inc. | 29 Meat30 Coffee31 Fresh+2 | Registered | 2023 |
| STEINDER 2111895 · TMA1192720 | Favonex Korea Ltd. | 8 Hand | Registered | 2023 |
| STANDOFF 2108237 · TMA1225853 | AXLEBOLT | 9 Electronics41 Education | Registered | 2024 |
| SIDANDE 2102299 · TMA1174934 · design | Shenzhen Diguang Imaging Technology Co. Ltd. | 9 Electronics | Registered | 2023 |
| STAINMATE 2077197 · TMA1205930 | an individual | 7 Machines | Registered | 2023 |
| STM32Trust 2042854 · TMA1209350 | an individual | 9 Electronics | Registered | 2023 |
| STANDARTPARK 2033624 · TMA1191445 · design | Owner not shown | 6 Metal17 Rubber19 Building | Registered | 2023 |