| SUNPAC 0533218 · TMA310389 · design | Sun Pac Foods Corp. | 29 Meat30 Coffee31 Fresh+1 | Registered | 1986 |
| SUNPACK 0772622 · TMA449692 | THE SUNRIDER CORPORATION, DOING BUSINESS UNDER THE NAME SUNRIDER INTERNATIONAL | 35 Advertising | Registered | 1995 |
| SUNPAK 1458017 · TMA823291 | Sun Chemical Corporation | 2 Paints | Registered | 2012 |
| SUNPAK 0463995 · TMA273780 | TOCAD COMPANY LIMITED | 9 Electronics | Registered | 1982 |
| SUNVIS 0195850 · UCA27592 | SUN LUBRICANTS AND SPECIALTY PRODUCTS INC. | 4 Oils | Registered | 1947 |
| SUNBEC 2310730 · design | SUNBEC FOOD INC. | 30 Coffee35 Advertising | Pending | 2024 |
| SUNBEC 2310729 | SUNBEC FOOD INC. | 30 Coffee35 Advertising | Pending | 2024 |
| SUNFACE 2121122 · TMA1185339 | an individual | 11 Lighting | Registered | 2023 |
| SUNFISH 1719494 · TMA967056 | Sea Dog Brands, LLC | 32 Beer | Registered | 2017 |
| SINOPEC 1366295 · TMA726371 · design | CHINA PETROCHEMICAL CORPORATION | 1 Chemicals4 Oils17 Rubber+6 | Registered | 2008 |
| SYNVISC 0576338 · TMA340261 | Genzyme Corporation | 5 Pharmaceuticals10 Medical | Registered | 1988 |
| SUNFISH 0463868 · TMA261675 | VELUM LIMITED | 12 Vehicles | Registered | 1981 |
| SUNFISH 2044728 | 2673755 Ontario Inc. | 22 Ropes25 Clothing29 Meat+4 | Pending | 2020 |
| SINEPAC 2004492 | Sine-Energy Power Products Inc. | 9 Electronics | Pending | 2020 |
| SUNPOCKET 1584598 · TMA879340 | an individual | 9 Electronics | Registered | 2014 |
| SYNPHASIC 1160662 · TMA609464 | Pharmacia & Upjohn Company LLC, (a Delaware Limited Liability Company) | 5 Pharmaceuticals | Registered | 2004 |
| SUNVKWEY 2261819 · TMA1281302 | Zhongshan Maixun Network Technology Co. LTD. | 11 Lighting | Registered | 2025 |
| Smofish 2250603 · TMA1268853 | Owner not listed | 9 Electronics20 Furniture | Registered | 2024 |
| SNIFFSCAPE 2239458 · TMA1259932 | an individual | 41 Education | Registered | 2024 |
| SOMMFACTORY 2234130 · TMA1256703 | an individual | 41 Education | Registered | 2024 |
| SMFK 2233787 · TMA1262864 · design | Yichen Fashion Design (Beijing) Co., Ltd. | 25 Clothing | Registered | 2024 |
| SMFK 2233785 · TMA1262863 · design | Yichen Fashion Design (Beijing) Co., Ltd. | 18 Leather | Registered | 2024 |
| SMFK 2233783 · TMA1262862 · design | Yichen Fashion Design (Beijing) Co., Ltd. | 14 Jewellery | Registered | 2024 |
| SYNOVACEPT 2232062 · TMA1250277 | Navidea Biopharmaceuticals, Inc. | 5 Pharmaceuticals | Registered | 2024 |
| SMPS 2227556 · TMA1252704 | SMPS Professional Services Corporation | 35 Advertising | Registered | 2024 |