| OCCER 2261784 · TMA1281290 | Guangzhou Ruiyi Information Technology Co. Ltd. | 9 Electronics | Registered | 2025 |
| OZERO 2212411 · TMA1183272 · design | Shenzhen Hongfuya Trade Co. Ltd | 9 Electronics21 Housewares25 Clothing+1 | Registered | 2023 |
| Ouker 2187804 · TMA1232630 | an individual | 28 Toys | Registered | 2024 |
| OZERI 2064480 · TMA1282166 | Commonpath LLC dba Ozeri | 7 Machines8 Hand9 Electronics+4 | Registered | 2025 |
| OZERO 1938481 · TMA1157750 · design | Shenzhen Hongfuya Trade Co. Ltd | 21 Housewares25 Clothing28 Toys | Registered | 2022 |
| OGIER 1899727 · TMA1188952 · design | Owner not shown | 33 Wine | Registered | 2023 |
| OZERY 1792111 · TMA985173 | Ozery's Pita Break Inc. | 30 Coffee35 Advertising40 Treatment | Registered | 2017 |
| OGORI 2227036 · TMA1251380 | Shen Zhen Ai Pin Gou Network Technology Limited Company | 8 Hand | Registered | 2024 |
| Osoeri 2204955 · TMA1236473 | Shenzhen Hailingchuan Technology Co. Ltd. | 12 Vehicles | Registered | 2024 |
| Osoeri 2204946 · TMA1236472 | Shenzhen Hailingchuan Technology Co. Ltd. | 9 Electronics | Registered | 2024 |
| Osoeri 2194868 · TMA1236086 | Shenzhen Hailingchuan Technology Co. Ltd. | 11 Lighting | Registered | 2024 |
| OGROW 2142882 · TMA1202817 | KSH BRANDS LLC | 6 Metal | Registered | 2023 |
| OUGARE 2102353 · TMA1188401 | an individual | 25 Clothing | Registered | 2023 |
| OSR 2083770 · TMA1212901 · design | ORIND SPECIAL REFRACTORIES PVT. LTD. | 19 Building | Registered | 2023 |
| OJIRRU 2068974 · TMA1164650 | an individual | 9 Electronics18 Leather25 Clothing | Registered | 2023 |
| OZARIA 2005262 · TMA1134823 | CodeCombat Inc. | 9 Electronics41 Education | Registered | 2022 |
| OSIRE 1952808 · TMA1222608 | OSRAM GmbH | 9 Electronics | Registered | 2024 |
| Oasser 1875286 · TMA1084509 | DongGuan Sogoode Computer System Co. Ltd | 7 Machines9 Electronics11 Lighting+1 | Registered | 2020 |
| OSORIO 1874732 · TMA1046562 · design | an individual | 9 Electronics11 Lighting18 Leather+1 | Registered | 2019 |
| OSIR 1832954 · TMA1008251 · design | an individual | 2 Paints | Registered | 2018 |
| OZORA 1813315 · TMA1061719 | Linde GmbH | 11 Lighting | Registered | 2019 |
| OSSUR 1812967 · TMA1006859 | an individual | 1 Chemicals6 Metal7 Machines+8 | Registered | 2018 |
| OCERA 1793554 · TMA1038886 | Ocera Therapeutics, Inc. | 5 Pharmaceuticals | Registered | 2019 |
| OCR 1749607 · TMA953907 · design | Outbreak Control and Remediation Management Group Inc. | 37 Construction | Registered | 2016 |
| OXGEAR 1731743 · TMA1002616 | PEAVEY INDUSTRIES LP | 9 Electronics25 Clothing | Registered | 2018 |