| SINGLEKEYID 2109983 · TMA1196568 · design | ROBERT BOSCH GMBH | 38 Telecommunications42 Science | Registered | 2023 |
| singlebest 2056974 · TMA1153061 | an individual | 26 Sewing | Registered | 2022 |
| SINGLEFILE 2010050 · TMA1227627 | SingleFile Technologies Inc. | 35 Advertising42 Science45 Legal | Registered | 2024 |
| Singletree 1617757 · TMA878575 | Coligny Hill Farms Ltd. | 33 Wine | Registered | 2014 |
| SINGLED 1478996 · TMA839300 | an individual | 10 Medical11 Lighting | Registered | 2013 |
| SINGLEJECT 1012497 · TMA550845 | AMGEN INC. | 5 Pharmaceuticals | Registered | 2001 |
| SingleKey 2330046 | Owner not listed | 36 Finance42 Science | Pending | 2024 |
| SINGLETREE 2300647 | Owner not listed | 35 Advertising36 Finance | Pending | 2023 |
| SINGLETONES 1525368 · TMA871070 | Owner not shown | 38 Telecommunications41 Education42 Science | Registered | 2014 |
| SINGLYFIRE 2153168 · TMA1206423 · design | SUI CHENG LIMITED | 11 Lighting | Registered | 2023 |
| 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 |
| SINGLESHOT 1711472 · TMA987230 | an individual | 12 Vehicles | Registered | 2017 |
| SENGLED 1694866 · TMA938215 · design | ZHEJIANG SHENGHUI LIGHTING CO. LTD and SENGLED OPTOELECTRONICS CO. LTD, a joint venture | 9 Electronics11 Lighting | Registered | 2016 |
| SENGLED 1694860 · TMA938324 · design | ZHEJIANG SHENGHUI LIGHTING CO. LTD and SENGLED OPTOELECTRONICS CO. LTD, a joint venture | 9 Electronics11 Lighting | Registered | 2016 |
| SENGLED 1694859 · TMA938207 | ZHEJIANG SHENGHUI LIGHTING CO. LTD and SENGLED OPTOELECTRONICS CO. LTD, a joint venture | 9 Electronics11 Lighting | Registered | 2016 |
| SINGLESYNC 1642412 · TMA976972 | an individual | 12 Vehicles40 Treatment42 Science | Registered | 2017 |
| SINGLES 1607855 · TMA878889 | OMS Investments, Inc. | 1 Chemicals | Registered | 2014 |
| SingleTrac 1417468 · TMA823025 | TOMBOW PENCIL CO. LTD. | 16 Paper | Registered | 2012 |
| SINGLE 1348228 · TMA718326 | BUNN-O-MATIC CORPORATION | 11 Lighting | Registered | 2008 |
| SINGLETRAP 1346498 · TMA716497 | StormTrap LLC | 19 Building | Registered | 2008 |
| SINGLEWRAP 1186199 · TMA621659 | STANDARD TEXTILE CO. INC. (An Alabama Corporation) | 10 Medical | Registered | 2004 |
| SINGLENOTE 0873415 · TMA518474 · design | an individual | 7 Machines | Registered | 1999 |
| SINGLES 0324133 · TMA169367 | Kraft Foods Group Brands LLC | 29 Meat | Registered | 1970 |