| SECUNDA 1574442 · TMA856981 | Secunda Canada LP | 39 Transport | Registered | 2013 |
| SECANT 1575841 · TMA900174 | Brasstech, Inc. | 6 Metal11 Lighting20 Furniture+1 | Registered | 2015 |
| SEKONDA 0300135 · TMA155088 | Time Products (UK) Limited | 14 Jewellery | Registered | 1968 |
| SKICANADA 0348794 · TMA199347 · design | CANADIAN SNOWSPORTS ASSOCIATION / ASSOCIATION CANADIENNE DES SPORTS D'HIVER | 3 Cosmetics9 Electronics12 Vehicles+3 | Registered | 1974 |
| 7SECONDS 2145022 · TMA1186720 | Unite Eurotherapy, Inc. | 3 Cosmetics | Registered | 2023 |
| SECONDRY 2103346 · TMA1173902 | an individual | 5 Pharmaceuticals | Registered | 2023 |
| SECOND 2 1149718 · TMA616588 · design | LES VÊTEMENTS WAZANA INC. | 25 Clothing | Registered | 2004 |
| SecondHalf 2166230 | an individual | 41 Education43 Restaurants44 Medical+1 | Pending | 2022 |
| secunet 2035985 · TMA1189150 | Owner not shown | 9 Electronics38 Telecommunications42 Science | Registered | 2023 |
| SECUNET 1701517 · TMA933427 | an individual | 9 Electronics12 Vehicles | Registered | 2016 |
| SAXENDA 1681143 · TMA922208 | Owner not shown | 5 Pharmaceuticals | Registered | 2015 |
| SUCANAT 1485082 · TMA827707 | Wholesome Sweeteners, Incorporated | 30 Coffee | Registered | 2012 |
| SECUNET 0883722 · TMA556601 | an individual | 9 Electronics35 Advertising38 Telecommunications+2 | Registered | 2002 |
| 1 SECONDE 1878775 · TMA1058440 | COTY BRANDS MANAGEMENT GMBH | 3 Cosmetics | Registered | 2019 |
| 8 SECONDS 1625007 · TMA883226 | 8 Seconds Western Wear Ltd. | 35 Advertising | Registered | 2014 |
| 8 SECONDS 1411455 · TMA761382 | Frank-Lin Distillers Products, Ltd. | 33 Wine | Registered | 2010 |
| SUKUNDU 2248189 · TMA1280956 | an individual | 3 Cosmetics | Registered | 2025 |
| SIGNET 2225929 · TMA1247092 | MACDONALD & MUIR LIMITED | 33 Wine | Registered | 2024 |
| Seasonwood 2219354 · TMA1248384 | Xisheng Wu (Wuxi) E-Commerce Co., Ltd | 24 Textiles | Registered | 2024 |
| Sysqindo 2218831 · TMA1246855 | Guangzhou Shangyan Trading Co., Ltd. | 9 Electronics | Registered | 2024 |
| Sixmoat 2207872 · TMA1244089 | an individual | 9 Electronics | Registered | 2024 |
| #30SECONDBALLET 2202390 · TMA1238813 | an individual | 16 Paper | Registered | 2024 |
| SWECENT 2192374 · TMA1234854 | an individual | 9 Electronics | Registered | 2024 |
| SAUCEMOTO 2176327 · TMA1207919 | Milkmen design, LLC | 12 Vehicles | Registered | 2023 |
| SECONDSOURCE 2160528 · TMA1211120 | Envirosoil Limited | 1 Chemicals4 Oils | Registered | 2023 |