| OSMOVIEW 2277490 · TMA1271689 | Osmose Utilities Services, Inc. | 42 Science | Registered | 2024 |
| Osenvic 2261628 · TMA1281256 | Shenzhen Aosenluo Electronic Technology Co. Ltd | 8 Hand | Registered | 2025 |
| OAKNOVILA 2251175 · TMA1280987 · design | Shenzhen Fanshi Home Decor Co. Ltd. | 21 Housewares | Registered | 2025 |
| OKENFA 2229881 · TMA1240491 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2024 |
| Oxinvis 2213822 · TMA1243202 | an individual | 25 Clothing | Registered | 2024 |
| OHJUMP 2187340 · TMA1231637 | Shenzhen Ledan Network Technology Co. LTD | 11 Lighting | Registered | 2024 |
| OCEANBUY 2166185 · TMA1213430 | L.W.H.CANADA INC | 35 Advertising | Registered | 2023 |
| oceanpedia 2070082 · TMA1181439 | Guangzhou Ousen E-commerce Co. Ltd. | 12 Vehicles25 Clothing28 Toys | Registered | 2023 |
| oceanbroad 2070080 · TMA1174641 | Guangzhou Ousen E-commerce Co. Ltd. | 12 Vehicles28 Toys | Registered | 2023 |
| OSMV 2048136 · TMA1125143 | Beauty Molecules International Limited | 3 Cosmetics | Registered | 2022 |
| OSMOBIOTIC 2045431 · TMA1149085 | BOIRON | 5 Pharmaceuticals | Registered | 2022 |
| OsmoHive 2036601 · TMA1163276 | Shenzhen Smashing Technology Co. Ltd. | 24 Textiles | Registered | 2023 |
| OsmoHive 2036600 · TMA1190354 | Shenzhen Smashing Technology Co. Ltd. | 25 Clothing | Registered | 2023 |
| OsmoVision 2015967 · TMA1270612 | Osmose Utilities Services, Inc. | 9 Electronics | Registered | 2024 |
| OCEANBLUE 1995335 · TMA1128299 · design | OCEANBLUE LLC | 5 Pharmaceuticals | Registered | 2022 |
| OCEANBLUE 1995334 · TMA1128298 | OCEANBLUE LLC | 5 Pharmaceuticals | Registered | 2022 |
| Osnuvo 1920405 · TMA1114764 | AVIR PHARMA INC. | 5 Pharmaceuticals | Registered | 2021 |
| OZEMPICCARE 1910705 · TMA1092227 | Owner not shown | 41 Education44 Medical | Registered | 2021 |
| OKINAP 1838138 · TMA1095816 | DewertOkin Technology Group Co., Ltd. | 7 Machines9 Electronics10 Medical+3 | Registered | 2021 |
| OCEANBLU 1810709 · TMA1049879 | an individual | 5 Pharmaceuticals | Registered | 2019 |
| OCEANWEAVE 1796296 · TMA1022386 | LTP SPORTS GROUP INC. | 12 Vehicles24 Textiles | Registered | 2019 |
| OCEANBASE 1756602 · TMA1113783 | Beijing OceanBase Technology Co. Ltd. | 1 Chemicals9 Electronics16 Paper+10 | Registered | 2021 |
| OZEMPIC 1705378 · TMA994872 | Owner not shown | 5 Pharmaceuticals | Registered | 2018 |
| OCEANFEED 1677463 · TMA947353 | Ocean Harvest Technology (Ireland Ltd) | 5 Pharmaceuticals35 Advertising | Registered | 2016 |
| OSIMFY 1657659 · TMA974354 | Bokoeco Partners Inc. | 5 Pharmaceuticals | Registered | 2017 |