| COMPETE 0915984 | MCMASTER UNIVERSITY | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2004 |
| Competiez 2075072 | an individual | 25 Clothing | Pending | 2021 |
| COMPEDES 1389854 · TMA745215 | Lely Patent N.V. a company organized and existing under the laws of the kingdom of the Netherlands | 19 Building27 Carpets | Registered | 2009 |
| COMPEED 1089785 · TMA604899 | an individual | 3 Cosmetics5 Pharmaceuticals20 Furniture+1 | Registered | 2004 |
| COMPETIA 1053427 · TMA562026 | Estelle Metayer Strategies Inc. | 9 Electronics35 Advertising36 Finance+4 | Registered | 2002 |
| COMPEED 0841755 · TMA498300 · design | an individual | 5 Pharmaceuticals | Registered | 1998 |
| COMPEED 0598215 · TMA397431 | an individual | 5 Pharmaceuticals | Registered | 1992 |
| COMPET 0305877 · TMA156866 | an individual | 9 Electronics | Registered | 1968 |
| COMPUTECH 1416831 · TMA775002 · design | an individual | 35 Advertising37 Construction | Registered | 2010 |
| COMPUTESE 2294049 | Computese INC. | 42 Science | Pending | 2023 |
| COMPTOMETER 0990772 · NFLD772 | VICTOR COMPTOMETER CORPORATION (AN ILLINOIS CORPORATION) | 9 Electronics | Registered | 1919 |
| COMPETITEUR 0819909 · TMA480584 | The Canada Life Assurance Company | 36 Finance | Registered | 1997 |
| COMPÉTIVERT 0926960 · design | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2021 |
| COMPÉTIVERT 0926959 | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2021 |
| CompTrak 1709114 · TMA941612 | CompTrak Inc. | 9 Electronics35 Advertising36 Finance+1 | Registered | 2016 |
| CambTEK 1579620 · TMA876461 | CambTEK Limited | 9 Electronics42 Science | Registered | 2014 |
| Compton 1403972 · TMA749658 | an individual | 29 Meat | Registered | 2009 |
| COMPTIA 0774674 · TMA477498 | THE COMPUTING TECHNOLOGY INDUSTRY ASSOCIATION, INC. | 35 Advertising | Registered | 1997 |
| COMPAT 0712488 · TMA438062 | Owner not shown | 10 Medical | Registered | 1995 |
| COMPUTOT 0706535 · TMA450441 | Owner not shown | 41 Education | Registered | 1995 |
| COMPUTAR 0368152 · TMA201184 | CBC America LLC | 9 Electronics | Registered | 1974 |
| COMPITOX 0270739 · TMA130437 | NUFARM UK LIMITED | 5 Pharmaceuticals | Registered | 1963 |
| COMPTIA 2171993 | The Computing Technology Industry Association, Inc. DBA CompTIA, Inc. a legal entity | 35 Advertising41 Education42 Science | Pending | 2022 |
| COMPUTOX 0900309 | Owner not shown | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1984 |
| CAMPETELLA 2136874 · TMA1205086 · design | CAMPETELLA ROBOTIC CENTER S.R.L. | 7 Machines | Registered | 2023 |