| COMPACPLUS 1215008 · TMA676878 · design | MANN+HUMMEL GmbH | 7 Machines37 Construction | Registered | 2006 |
| CompactTube 2071712 · TMA1177248 | ROBERT BOSCH GMBH | 9 Electronics12 Vehicles | Registered | 2023 |
| CompassLite 1992572 · TMA1131528 | 1995712 Ontario Inc | 35 Advertising39 Transport41 Education+1 | Registered | 2022 |
| CompassPlus 1616476 · TMA929837 | OTIS ELEVATOR COMPANY | 7 Machines | Registered | 2016 |
| COMPACTLINE 1114921 · TMA641907 | an individual | 9 Electronics | Registered | 2005 |
| COMPAKBOARD 0841048 · TMA527313 | COMPAK SYSTEMS LIMITED | 6 Metal7 Machines9 Electronics+6 | Registered | 2000 |
| COMPACTCUBE 2153908 | 9378-9733 Québec inc. | 39 Transport | Pending | 2021 |
| COMPACTIUM 1666737 · TMA900566 | manuflow inc. | 11 Lighting | Registered | 2015 |
| Compak 1487080 · TMA796311 | Les Industries Fibrobec inc. | 12 Vehicles | Registered | 2011 |
| COMPAK 1486264 · TMA796301 · design | Les Industries Fibrobec inc. | 12 Vehicles | Registered | 2011 |
| COMPAK 0564688 · TMA333933 | The Procter & Gamble Company | 5 Pharmaceuticals | Registered | 1987 |
| CompactCurve 1612976 · TMA892451 | an individual | 9 Electronics | Registered | 2014 |
| COMPOSECURE 1990732 · TMA1100416 | an individual | 9 Electronics16 Paper40 Treatment+1 | Registered | 2021 |
| COMPOSOLITE 1960770 · TMA1275049 | Strongwell Corporation | 19 Building20 Furniture | Registered | 2024 |
| CompackHeat 1509231 · TMA832332 | Armserv Contracting Inc. | 11 Lighting | Registered | 2012 |
| COMPACTPREP 1280762 · TMA717179 | QIAGEN GMBH | 1 Chemicals5 Pharmaceuticals9 Electronics | Registered | 2008 |
| COMPOSTABLES 2243961 · TMA1263143 · design | Owner not listed | 8 Hand16 Paper21 Housewares | Registered | 2024 |
| CompactMD 2156800 · TMA1207839 | an individual | 44 Medical | Registered | 2023 |
| COMPASS 2156252 · TMA1207802 | Stoneage, Inc. | 7 Machines | Registered | 2023 |
| COMPAC 2046827 · TMA1188130 · design | Owner not shown | 7 Machines | Registered | 2023 |
| COMPASS 2046684 · TMA1141373 · design | American Society for Testing and Materials | 41 Education42 Science | Registered | 2022 |
| COMPOZITE 2005346 · TMA1108299 | Oz Lifting Products, LLC | 7 Machines | Registered | 2021 |
| COMPASSION 2003424 · TMA1281904 | Compassion International, Inc. | 36 Finance43 Restaurants44 Medical+1 | Registered | 2025 |
| COMPASSION 1957869 · TMA1112409 · design | an individual | 9 Electronics16 Paper25 Clothing+3 | Registered | 2021 |
| COMPOXELL 1948608 · TMA1240577 | an individual | 2 Paints3 Cosmetics | Registered | 2024 |