| SINGLEFILE 2010050 · TMA1227627 | SingleFile Technologies Inc. | 35 Advertising42 Science45 Legal | Registered | 2024 |
| SINGLESTORE 2228325 · TMA1251496 | Singlestore, Inc. | 9 Electronics | Registered | 2024 |
| SINGLESTORE 2051222 · TMA1244889 | Singlestore, Inc. | 42 Science | Registered | 2024 |
| SINGULARITÉ 1924255 · TMA1109210 | Gestion Michel Grisé inc. | 5 Pharmaceuticals | Registered | 2021 |
| SINCLAIR 1787402 · TMA986956 · design | Sinclair Supply Ltd. | 35 Advertising40 Treatment41 Education | Registered | 2017 |
| SingleViu 1772717 · TMA1039548 | Continental Automotive Technologies GmbH | 9 Electronics | Registered | 2019 |
| SINGLE 1743539 · TMA1076916 · design | Single Temperiertechnik GmbH | 9 Electronics11 Lighting16 Paper | Registered | 2020 |
| SWINGLINE 1619611 · TMA881315 | ACCO Brands Corporation | 14 Jewellery16 Paper | Registered | 2014 |
| Singletree 1617757 · TMA878575 | Coligny Hill Farms Ltd. | 33 Wine | Registered | 2014 |
| SWINGLINE 1578263 · TMA865487 | ACCO Brands Corporation | 6 Metal16 Paper17 Rubber+1 | Registered | 2013 |
| SKINGLIDE 1554263 · TMA890673 | W Sternoff LLC | 3 Cosmetics | Registered | 2014 |
| SINGLEFEED 1550439 · TMA848068 | VENDIO VENTURES, LLC, a Delaware limited liability company | 35 Advertising42 Science | Registered | 2013 |
| SkinGlide 1500423 · TMA875792 | an individual | 8 Hand | Registered | 2014 |
| SINGLE 1348228 · TMA718326 | BUNN-O-MATIC CORPORATION | 11 Lighting | Registered | 2008 |
| SWINGLINE 1299341 · TMA741459 | ACCO Brands Corporation | 16 Paper | Registered | 2009 |
| SWINGLINE 1292981 · TMA708873 | ACCO Brands Corporation | 16 Paper | Registered | 2008 |
| SINGLENOTE 0873415 · TMA518474 · design | an individual | 7 Machines | Registered | 1999 |
| SINCLAIR 0774305 · TMA465821 · design | Norsat International Inc. | 9 Electronics19 Building | Registered | 1996 |
| SINGULAIR 0771683 · TMA503426 | an individual | 5 Pharmaceuticals | Registered | 1998 |
| SINCLAIR 0294473 · TMA158118 · design | Sinclair Oil LLC | 1 Chemicals2 Paints4 Oils+5 | Registered | 1968 |
| SWINGLINE 0174525 · UCA11731 | ACCO Brands Corporation | 7 Machines8 Hand16 Paper+3 | Registered | 1938 |
| SINCLAIR 2320600 · design | Sinclair International Limited | 7 Machines16 Paper37 Construction | Pending | 2024 |
| SINGLETREE 2300647 | Owner not listed | 35 Advertising36 Finance | Pending | 2023 |
| SINCLAIR 2244021 | Sinclair Pharmaceuticals Limited | 3 Cosmetics5 Pharmaceuticals10 Medical | Pending | 2022 |
| SINCLAIR 2034903 | Sinclair International Limited | 7 Machines16 Paper37 Construction | Pending | 2020 |