| ONLY 2218815 · TMA1246846 · design | KENNEDE ELECTRONICS MFG.CO.,LTD. | 34 Tobacco | Registered | 2024 |
| ONLY 2140880 · TMA1201502 · design | J2F Beverages Limited | 33 Wine | Registered | 2023 |
| ONLY 1215241 · TMA680210 | Owner not shown | 3 Cosmetics9 Electronics18 Leather+1 | Registered | 2007 |
| ONLY 1987945 | Spotless Life Inc. | 3 Cosmetics5 Pharmaceuticals8 Hand+2 | Pending | 2019 |
| ONLY ME!! 1578889 · TMA967454 · design | LOOK Beauty Inc. | 3 Cosmetics18 Leather | Registered | 2017 |
| ONLY IN 1576983 · TMA862265 | Only In, LLC | 38 Telecommunications41 Education42 Science+1 | Registered | 2013 |
| IF ONLY 1572483 · TMA955533 | Traina Interactive Corp. (a Delaware corporation) | 35 Advertising36 Finance39 Transport+5 | Registered | 2016 |
| ME ONLY 1449572 · TMA897831 | Groupe René Marchand Inc. | 9 Electronics | Registered | 2015 |
| ME ONLY 1965799 | an individual | 3 Cosmetics5 Pharmaceuticals10 Medical+1 | Pending | 2019 |
| PRO ONLY 1913985 · TMA1093087 | EATON CORPORATION | 28 Toys | Registered | 2021 |
| ONLY ONE 1769420 · TMA961870 | an individual | 9 Electronics | Registered | 2017 |
| ONE & ONLY 1591969 · TMA929272 | Kerzner International Limited | 28 Toys36 Finance39 Transport+3 | Registered | 2016 |
| INK-ONLY 1350440 · TMA767780 | MULTI-COLOR CORPORATION an Ohio corporation | 16 Paper | Registered | 2010 |
| AIR ONLY 1005372 · TMA532650 · design | H.I.S. CANADA TRAVEL INC. | 35 Advertising39 Transport | Registered | 2000 |
| FEE-ONLY 0842154 · TMA525617 | CANADIAN WESTERN BANK | 16 Paper35 Advertising36 Finance | Registered | 2000 |
| ONE+ONLY 2233962 · design | 2238534 Ontario Inc. DBA Jewlr.com | 14 Jewellery21 Housewares35 Advertising | Pending | 2023 |
| GET ONLY 2029056 | Spotless Life Inc. | 3 Cosmetics5 Pharmaceuticals8 Hand+5 | Pending | 2020 |
| ONLY WARM 2184720 · TMA1233503 · design | an individual | 18 Leather | Registered | 2024 |
| ONLY FANS 2006409 · TMA1147672 · design | Fenix International Limited | 9 Electronics35 Advertising38 Telecommunications+2 | Registered | 2022 |
| ONLY LYON 1936483 · TMA1150846 · design | ASSOCIATION POUR LE DEVELOPPEMENT ECONOMIQUE DE LA REGION LYONNAISE | 18 Leather25 Clothing28 Toys | Registered | 2022 |
| ONLY LYON 1936482 · TMA1150856 · design | ASSOCIATION POUR LE DEVELOPPEMENT ECONOMIQUE DE LA REGION LYONNAISE | 18 Leather25 Clothing28 Toys | Registered | 2022 |
| ONLY LOVE 1898160 · TMA1069415 | Henkel AG & Co. KGaA | 3 Cosmetics | Registered | 2020 |
| FOAM ONLY 1603818 · TMA968827 | an individual | 40 Treatment | Registered | 2017 |
| B BE ONLY 1576154 · TMA854535 · design | OXYGEN | 25 Clothing | Registered | 2013 |
| ONLY & WEAR 1343673 · TMA750413 | NBATEX Garments Co. Ltd. | 3 Cosmetics9 Electronics18 Leather+5 | Registered | 2009 |