| ODEK 1857921 · TMA1091376 | TOVARYSTVO Z OBMEZHENOIU VIDPOVIDALNISTIU 'ODEK' UKRAINE (LLC) | 19 Building | Registered | 2021 |
| ODES 1571206 · TMA846929 | 1211311 Alberta Ltd. | 1 Chemicals4 Oils6 Metal+8 | Registered | 2013 |
| ODESI 1439540 · TMA799918 | Ontario Council of University Libraries (OCUL) an affiliate of the Council of Ontario Universities (COU) | 16 Paper42 Science | Registered | 2011 |
| ODESSA 1907945 · TMA1101108 | Sundance Spas, Inc. | 11 Lighting | Registered | 2021 |
| ODESZA 1888110 · TMA1085802 | Odesza, LLC | 9 Electronics25 Clothing41 Education | Registered | 2020 |
| ODESSA 1882252 · TMA1086945 | Odessa Technologies, Inc. | 9 Electronics42 Science | Registered | 2020 |
| ODESSA 1761541 · TMA957308 | Hearts on Fire Company, LLC | 14 Jewellery | Registered | 2016 |
| ODESSA 1156860 · TMA614247 | GILLES FERRON INC. | 29 Meat35 Advertising | Registered | 2004 |
| ODESSA 2090502 | Senior Group LLC | 9 Electronics42 Science44 Medical | Pending | 2021 |
| ODEX 1903196 · TMA1116045 | Owner not shown | 3 Cosmetics5 Pharmaceuticals30 Coffee | Registered | 2021 |
| ODASS 1881613 · TMA1069095 · design | 9374-7806 Québec inc. | 11 Lighting20 Furniture | Registered | 2020 |
| ODEKA 1719106 · TMA967843 · design | an individual | 3 Cosmetics9 Electronics14 Jewellery+5 | Registered | 2017 |
| ODS 1646277 · TMA951696 | an individual | 3 Cosmetics | Registered | 2016 |
| ODASI 1567286 · TMA869297 | 7752105 CANADA INC. | 14 Jewellery18 Leather25 Clothing+1 | Registered | 2014 |
| ODIS 1356539 · TMA715566 | an individual | 20 Furniture | Registered | 2008 |
| ODEX 0428143 · TMA242456 | an individual | 7 Machines9 Electronics | Registered | 1980 |
| ODISI 2359483 | Altyx Surgical, Inc. | 10 Medical41 Education | Pending | 2024 |
| ODK 2332936 | Hangzhou Aodikai Smart Home Co. Ltd. | 20 Furniture | Pending | 2024 |
| ODAS 2256329 | ARA Robotique Inc. | 41 Education42 Science | Pending | 2023 |
| OETZI 2226399 · TMA1252601 · design | BEIJING JIURICHENG TECHNOLOGY AND TRADE CO. LTD. | 25 Clothing | Registered | 2024 |
| Outus 2226069 · TMA1251285 | SHENZHEN JUANJING NETWORK TECHNOLOGY CO., LTD. | 16 Paper | Registered | 2024 |
| OTSO 2221581 · TMA1239045 | OTSO CYCLES, LLC | 12 Vehicles | Registered | 2024 |
| Oddekey 2217670 · TMA1245520 | an individual | 21 Housewares | Registered | 2024 |
| OUTASK 2203845 · TMA1239969 · design | Shenzhen Habitat Technology Co., Ltd. | 11 Lighting | Registered | 2024 |
| Odokee 2177243 · TMA1227243 | Shenzhen Yixunjie Electronic Commerce Co. Ltd. | 14 Jewellery | Registered | 2024 |