| CONTENTLAB 1933750 · TMA1178408 | CodeProject Solutions Inc. | 9 Electronics16 Paper35 Advertising+2 | Registered | 2023 |
| CONTENTYAK 1826775 · TMA1047945 · design | an individual | 35 Advertising | Registered | 2019 |
| Contenta 1580672 · TMA1021599 | CONTENTA INC. | 38 Telecommunications | Registered | 2019 |
| CONTENTS 1473975 · TMA791050 | Conair LLC | 9 Electronics16 Paper18 Leather+1 | Registered | 2011 |
| CONTENTDM 1160526 · TMA674136 | OCLC, INC. | 9 Electronics | Registered | 2006 |
| CONTENTWATCH 1116537 · TMA627113 | Content Watch Holdings, Inc. | 9 Electronics | Registered | 2004 |
| CONTENTNAV 2295900 | Owner not listed | 9 Electronics42 Science | Pending | 2023 |
| CONTENTSTRACK 1693042 · TMA979848 | Xactware Solutions, Inc. | 9 Electronics42 Science | Registered | 2017 |
| CONTENTSQUARE 2359525 | an individual | 9 Electronics35 Advertising41 Education+1 | Pending | 2024 |
| CONTENTSQUARE 2058374 · design | Owner not shown | 9 Electronics35 Advertising41 Education+1 | Pending | 2020 |
| CENTENICA 2136108 · TMA1178286 | LG H&H Co., LTD. | 3 Cosmetics | Registered | 2023 |
| CONTEND 2111728 · TMA1159470 | Owner not shown | 5 Pharmaceuticals10 Medical | Registered | 2023 |
| CONTENDER 2023919 · TMA1202433 | an individual | 6 Metal7 Machines17 Rubber | Registered | 2023 |
| CONTENTFUL 2004442 · TMA1119099 | Contentful GmbH | 9 Electronics35 Advertising42 Science | Registered | 2022 |
| CONTENDER 1894477 · TMA1107917 | Mosaic Sales Solutions US Operating Co. LLC | 35 Advertising | Registered | 2021 |
| CONTEND 1887756 · TMA1103452 | Mosaic Sales Solution US Operating Co. LLC | 35 Advertising | Registered | 2021 |
| CONTENDER 1879834 · TMA1087044 | APPLETON GRP LLC | 11 Lighting | Registered | 2020 |
| CENTENNIALS 1868412 · TMA1081918 · design | 1951532 ONTARIO INC. | 9 Electronics14 Jewellery16 Paper+10 | Registered | 2020 |
| CONTENT 1799426 · TMA1053009 · design | Ipsen Biopharm Limited | 42 Science | Registered | 2019 |
| CONTEND 1771791 · TMA1040429 | Giant Manufacturing Co. Ltd. | 6 Metal12 Vehicles20 Furniture | Registered | 2019 |
| CONTENTNOW 1723958 · TMA941582 | 1WorldSync, Inc. | 35 Advertising38 Telecommunications42 Science | Registered | 2016 |
| CONTENDER 1684969 · TMA937295 | Interprovincial Cooperative Limited | 5 Pharmaceuticals | Registered | 2016 |
| CONTENTION 1424319 · TMA816512 | MEC MOUNTAIN EQUIPMENT COMPANY LTD. | 25 Clothing | Registered | 2012 |
| CANTENAAR 1234575 · TMA646620 | an individual | 29 Meat | Registered | 2005 |
| CENTENARY 0738503 · TMA496183 | Alfred Dunhill Limited | 14 Jewellery | Registered | 1998 |