| SERVOSTAR 0842283 · TMA527343 | Kollmorgen Corporation | 7 Machines9 Electronics | Registered | 2000 |
| SERVISAIR 1497730 · TMA917026 · design | Swissport Group Services GmbH | 35 Advertising37 Construction39 Transport+3 | Registered | 2015 |
| SURFSTAR 2174580 · TMA1230140 · design | MasterCraft Boat Company, LLC | 12 Vehicles | Registered | 2024 |
| SURFSTAR 2167084 · TMA1230115 | MasterCraft Boat Company, LLC | 12 Vehicles | Registered | 2024 |
| SERVCTR 1536262 · TMA830521 | SynchroSERV Inc. | 35 Advertising36 Finance | Registered | 2012 |
| SERVIGARD 1153397 · TMA650376 | PHOENIX A.M.D. INTERNATIONAL INC. | 36 Finance37 Construction | Registered | 2005 |
| "SERVISOFT" 0189122 · UCA23023 | Ecowater Systems LLC a Delaware limited liability company | 1 Chemicals11 Lighting35 Advertising+2 | Registered | 1945 |
| SERVICETALK 2060798 · TMA1181385 | Apple Inc. | 42 Science | Registered | 2023 |
| SERVICETALK 2057653 · TMA1181366 | Apple Inc. | 9 Electronics | Registered | 2023 |
| SERVICEPTOR 0532497 · TMA309026 · design | STERN-WILLIAMS CO. INC. | 6 Metal | Registered | 1985 |
| SERVICETEAM 2089486 | Provance Technologies Inc. | 9 Electronics42 Science | Pending | 2021 |
| SERVICEMASTER 1350425 · TMA728721 | SERVICEMASTER CLEAN/RESTORE SPE LLC | 37 Construction | Registered | 2008 |
| SERVICEMASTER 0568479 · TMA384055 | SERVICEMASTER CLEAN/RESTORE SPE LLC | 44 Medical | Registered | 1991 |
| SERVICEMASTER 0381981 · TMA219205 | SERVICEMASTER CLEAN/RESTORE SPE LLC | 3 Cosmetics37 Construction | Registered | 1977 |
| SERVICEMASTER 0302813 · TMA154273 | SERVICEMASTER CLEAN/RESTORE SPE LLC | 37 Construction | Registered | 1967 |
| SOURVISIAE 1936144 · TMA1119793 | an individual | 30 Coffee | Registered | 2022 |
| SARVESHWAR 1641931 · TMA948409 | SARVESHWAR ORGANIC FOODS LIMITED | 29 Meat30 Coffee31 Fresh | Registered | 2016 |
| SERVICEMAX 1441044 · TMA777139 | ServiceMax, Inc. | 42 Science | Registered | 2010 |
| SCOREVISTA 1415643 · TMA755577 | Rent Bureau of Canada Ltd. | 16 Paper35 Advertising36 Finance+1 | Registered | 2009 |
| SERVICEMAX 1112087 · TMA583836 | ServiceMax, Inc. | 37 Construction | Registered | 2003 |
| SERVASSURE 2199093 | ARRIS Enterprises LLC | 9 Electronics42 Science | Pending | 2022 |
| SERVICETITAN 1978399 · TMA1271930 | ServiceTitan, Inc. | 9 Electronics35 Advertising36 Finance+5 | Registered | 2024 |
| ServiceTitan 1895012 · TMA1083670 | ServiceTitan, Inc. | 42 Science | Registered | 2020 |
| SERVICEGUARD 1862404 · TMA1053166 | Hewlett Packard Enterprise Development LP | 9 Electronics | Registered | 2019 |
| SERVICEGUARD 1836207 · TMA1008115 | Service Wire Company | 9 Electronics | Registered | 2018 |