| SLIMSOLE 1455543 · TMA776860 | Scholl's Wellness Company LLC | 25 Clothing | Registered | 2010 |
| SLIMSTYLES 1192642 · TMA621412 | Natural Factors Nutritional Products Ltd. | 1 Chemicals5 Pharmaceuticals29 Meat+1 | Registered | 2004 |
| SlimCuts 1793911 · TMA981326 | NuvoCare Health Sciences Inc. | 5 Pharmaceuticals | Registered | 2017 |
| SLIMCUT 1648858 · TMA896380 | Pearlman Industries, Inc. DBA Pearl Abrasive Co. | 7 Machines | Registered | 2015 |
| SLIMCAT 1363056 · TMA748339 | Radio Systems Corporation, a Delaware corporation | 21 Housewares28 Toys | Registered | 2009 |
| SLIMCASH 1359842 · TMA772994 | Wincor Nixdorf International GmbH | 9 Electronics42 Science | Registered | 2010 |
| SLIMCAM 1234959 · TMA670518 | Anchor Lamina America, Inc. | 7 Machines | Registered | 2006 |
| SLIMSHADE 0578711 · TMA344595 | PELLA CORPORATION | 9 Electronics19 Building | Registered | 1988 |
| SLIMSEAL 0321442 · TMA174330 | Flowserve Pte. Ltd | 7 Machines | Registered | 1971 |
| SLIMECORE 2182537 | Genpop Interactive, Inc. | 9 Electronics25 Clothing28 Toys+1 | Pending | 2022 |
| SLIMCLEANER 1800346 · TMA1016872 | SlimWare Utilities Holdings, Inc. | 9 Electronics | Registered | 2019 |
| SELENASE 2265243 · TMA1283455 · design | biosyn Arzneimittel GmbH | 5 Pharmaceuticals | Registered | 2025 |
| SALMOKA 2249130 · TMA1279136 | Shenzhen Andahe Technology Co.Ltd | 11 Lighting | Registered | 2024 |
| SLINGSHOT 2243764 · TMA1261821 | Motif Labs Ltd. | 3 Cosmetics5 Pharmaceuticals29 Meat+1 | Registered | 2024 |
| SOLMAXX 2236461 · TMA1256910 | Alberta Veterinary Laboratories Ltd. | 5 Pharmaceuticals | Registered | 2024 |
| SOLENICA 2214739 · TMA1243230 | Solenica, Inc. | 11 Lighting | Registered | 2024 |
| SheLins 2214267 · TMA1244370 | Shenzhen Xinxing Hengyue Electronics Commerce Co., Ltd. | 10 Medical | Registered | 2024 |
| shlinux 2210664 · TMA1242955 | an individual | 11 Lighting | Registered | 2024 |
| SOLNIXON 2193268 · TMA1242554 | Alberta Veterinary Laboratories Ltd. | 5 Pharmaceuticals | Registered | 2024 |
| SILANG 2186844 · TMA1261249 · design | SILANG FOOD (HUAI BEI) CO. LTD | 30 Coffee | Registered | 2024 |
| SLOWING 2164698 · TMA1175279 | 12523744 Canada Inc. | 28 Toys35 Advertising | Registered | 2023 |
| SHILANGO 2163248 · TMA1214450 | an individual | 18 Leather24 Textiles35 Advertising | Registered | 2023 |
| Slanku 2160523 · TMA1211116 | an individual | 9 Electronics | Registered | 2023 |
| Skelang 2157740 · TMA1208875 | Shenzhen Juli Trading Co. Ltd | 6 Metal | Registered | 2023 |
| Suilong 2136591 · TMA1208586 · design | Foshan Suilong Furniture Co. Ltd. | 20 Furniture | Registered | 2023 |