| SINGLEPOINTE 1397190 · TMA800755 | Omnicell, Inc. | 9 Electronics20 Furniture35 Advertising+1 | Registered | 2011 |
| SINGLESTORE 2228325 · TMA1251496 | Singlestore, Inc. | 9 Electronics | Registered | 2024 |
| SINGLESTORE 2051222 · TMA1244889 | Singlestore, Inc. | 42 Science | Registered | 2024 |
| SINGLETONES 1525368 · TMA871070 | Owner not shown | 38 Telecommunications41 Education42 Science | Registered | 2014 |
| SINGLEFILE 2010050 · TMA1227627 | SingleFile Technologies Inc. | 35 Advertising42 Science45 Legal | Registered | 2024 |
| SINGLESHOT 1711472 · TMA987230 | an individual | 12 Vehicles | Registered | 2017 |
| Singletree 1617757 · TMA878575 | Coligny Hill Farms Ltd. | 33 Wine | Registered | 2014 |
| SINGLESHOT 2339526 | Owner not listed | 2 Paints | Pending | 2024 |
| SINGLETREE 2300647 | Owner not listed | 35 Advertising36 Finance | Pending | 2023 |
| SingleOps 2237987 | SingleOps, LLC | 42 Science | Pending | 2023 |
| SINGLERON 2190900 · design | Singleron (Nanjing) Biotechnologies Co. Ltd. | 1 Chemicals3 Cosmetics5 Pharmaceuticals+6 | Pending | 2022 |
| SINGLERON 2161513 · design | Singleron (Nanjing) Biotechnologies Co. Ltd. | 9 Electronics37 Construction44 Medical | Pending | 2022 |
| SINGULARITÉ 1924255 · TMA1109210 | Gestion Michel Grisé inc. | 5 Pharmaceuticals | Registered | 2021 |
| SINGLEPROOF 1846318 · TMA1020355 | an individual | 16 Paper | Registered | 2019 |
| SINGLEPOINT 1220894 · TMA779900 | Wireless Services Corporation | 38 Telecommunications | Registered | 2010 |
| SINGLYFIRE 2153168 · TMA1206423 · design | SUI CHENG LIMITED | 11 Lighting | Registered | 2023 |
| singlebest 2056974 · TMA1153061 | an individual | 26 Sewing | Registered | 2022 |
| SUNGLOVE 1994899 · TMA1255849 · design | THANTAWAN INDUSTRY PUBLIC COMPANY LIMITED | 21 Housewares | Registered | 2024 |
| SINGLES 1990119 · TMA1258763 | Walter Surface Technologies Incorporated | 9 Electronics | Registered | 2024 |
| SingleViu 1772717 · TMA1039548 | Continental Automotive Technologies GmbH | 9 Electronics | Registered | 2019 |
| SINGLE 1743539 · TMA1076916 · design | Single Temperiertechnik GmbH | 9 Electronics11 Lighting16 Paper | Registered | 2020 |
| SINGLESYNC 1642412 · TMA976972 | an individual | 12 Vehicles40 Treatment42 Science | Registered | 2017 |
| SWINGLINE 1619611 · TMA881315 | ACCO Brands Corporation | 14 Jewellery16 Paper | Registered | 2014 |
| SINGLES 1607855 · TMA878889 | OMS Investments, Inc. | 1 Chemicals | Registered | 2014 |
| SWINGLINE 1578263 · TMA865487 | ACCO Brands Corporation | 6 Metal16 Paper17 Rubber+1 | Registered | 2013 |