| OMAX 1498987 · TMA827754 | 9165-9755 Québec inc. | 5 Pharmaceuticals | Registered | 2012 |
| OMAX 0864761 · TMA510411 | an individual | 8 Hand14 Jewellery16 Paper+1 | Registered | 1999 |
| OMMAGE 2300741 | Owner not listed | 3 Cosmetics4 Oils18 Leather+3 | Pending | 2023 |
| OMGAI 2083044 · TMA1180340 · design | an individual | 11 Lighting | Registered | 2023 |
| OMSA 2078900 · TMA1209496 | GOLDEN LADY COMPANY S.p.A. | 9 Electronics10 Medical25 Clothing | Registered | 2023 |
| OMAS 1874861 · TMA1079444 · design | an individual | 7 Machines8 Hand | Registered | 2020 |
| OMNEX 1858835 · TMA1055276 | Cooper Technologies Company | 9 Electronics | Registered | 2019 |
| OMEX 1781964 · TMA979589 | Omex Agriculture Inc. | 1 Chemicals5 Pharmaceuticals16 Paper+1 | Registered | 2017 |
| OMx 1753205 · TMA1084627 | OMx Personal Health Analytics Inc. | 9 Electronics35 Advertising38 Telecommunications+3 | Registered | 2020 |
| OMAC 1589272 · TMA859863 · design | an individual | 7 Machines37 Construction | Registered | 2013 |
| OMNYX 1582985 · TMA905103 | OMNYX, LLC | 9 Electronics10 Medical | Registered | 2015 |
| OMIX 1544538 · TMA838482 | Agilent Technologies, Inc. | 9 Electronics | Registered | 2012 |
| OmniX 1506785 · TMA893297 | CONDUENT BUSINESS SERVICES, LLC | 9 Electronics | Registered | 2015 |
| OMX 1389861 · TMA828724 | CommScope Technologies LLC | 9 Electronics | Registered | 2012 |
| OMSA 1358991 · TMA728717 · design | GOLDEN LADY COMPANY S.p.A. | 25 Clothing | Registered | 2008 |
| OMAC 1161729 · TMA591657 | Ontario Mortgage Action Centre Ltd. | 36 Finance | Registered | 2003 |
| OMNEX 1158290 · TMA615933 | OMNEX ENGINEERING AND MANAGEMENT INC. | 41 Education42 Science | Registered | 2004 |
| OMSA 0869718 · TMA504391 | GOLDEN LADY COMPANY S.p.A. | 25 Clothing | Registered | 1998 |
| OHMX 2372168 | NABSYS 2.0 LLC | 9 Electronics42 Science | Pending | 2024 |
| OMNIX 2327086 | Owner not listed | 7 Machines9 Electronics11 Lighting+1 | Pending | 2024 |
| OMNIx 2262825 | Owner not listed | 9 Electronics | Pending | 2023 |
| OMAG 2250241 | Owner not listed | 7 Machines37 Construction42 Science | Pending | 2023 |
| OMNIX 2230462 · design | SHANG CHONG INTERNATIONAL CO. LTD. | 28 Toys | Pending | 2022 |
| OMAC 2203988 | OMAC Holding Corp. | 25 Clothing41 Education | Pending | 2022 |
| OMAC 2117868 · design | OMAC Holding Corp. | 25 Clothing41 Education | Pending | 2021 |