| OPELLO 2138771 · TMA1214242 | an individual | 5 Pharmaceuticals | Registered | 2023 |
| OVL 2109058 · TMA1175118 · design | Shenzhen Eigate Technology Co. Ltd. | 34 Tobacco | Registered | 2023 |
| Ofeily 2101700 · TMA1190576 | Shenzhenshi Zhuoyuexin Network Technology Co.Ltd | 25 Clothing | Registered | 2023 |
| OPHELIE 2052412 · TMA1283910 | CRÉATIVAXION TI INC. | 42 Science | Registered | 2025 |
| OPOULE 2043987 · TMA1182418 | REA Innovations, Inc. | 3 Cosmetics | Registered | 2023 |
| OPHELIA 2043640 · TMA1265181 | Delta Faucet Company | 11 Lighting | Registered | 2024 |
| OBELLE 2027464 · TMA1159946 | The Ritz-Carlton Hotel Company, L.L.C. | 43 Restaurants | Registered | 2023 |
| OPAL 2025062 · TMA1212804 | Haier US Appliance Solutions, Inc. | 3 Cosmetics11 Lighting | Registered | 2023 |
| OPFEEL 1955742 · TMA1184511 | PROJETCLUB, SA | 9 Electronics18 Leather25 Clothing+1 | Registered | 2023 |
| OPALE 1941451 · TMA1213706 | Owner not shown | 1 Chemicals40 Treatment42 Science | Registered | 2023 |
| OVAL-8 1927676 · TMA1110495 | DIXON TICONDEROGA COMPANY. | 2 Paints | Registered | 2021 |
| ohplay 1907109 · TMA1127897 | SHENZHEN AIRSMART TECHNOLOGY CO. LTD | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2022 |
| OPILL 1866245 · TMA1038727 · design | an individual | 5 Pharmaceuticals | Registered | 2019 |
| OVELA 1861111 · TMA1081648 | GLAXO GROUP LIMITED | 5 Pharmaceuticals44 Medical | Registered | 2020 |
| OPHELIA 1850034 · TMA1025095 | Ophelia Financial Technologies Inc. | 36 Finance42 Science | Registered | 2019 |
| OBELA 1846539 · TMA1035543 · design | PepsiCo-Strauss Fresh Dips & Spreads International GmbH | 29 Meat30 Coffee | Registered | 2019 |
| OPALIA 1814309 · TMA1065015 | Bains Ultra inc. | 11 Lighting | Registered | 2019 |
| OPLI 1812360 · TMA998948 | an individual | 18 Leather | Registered | 2018 |
| OPAL 1803429 · TMA1095483 | Varieties International LLC | 31 Fresh | Registered | 2021 |
| OPILL 1784969 · TMA1058030 | an individual | 5 Pharmaceuticals | Registered | 2019 |
| OPAL 1756711 · TMA1059717 | Fempro Consumer Products ULC | 3 Cosmetics5 Pharmaceuticals | Registered | 2019 |
| OPLEO 1732263 · TMA952353 | Owner not shown | 45 Legal | Registered | 2016 |
| OVAL-16 1707705 · TMA928091 | DIXON TICONDEROGA COMPANY. | 16 Paper | Registered | 2016 |
| OBLO 1665034 · TMA1033155 | Owner not shown | 11 Lighting | Registered | 2019 |
| OPPLE 1658143 · TMA922925 · design | Opple Lighting Co. Ltd. | 6 Metal7 Machines9 Electronics+2 | Registered | 2015 |