| COLLECT 1694659 · TMA991133 · design | Rewardjunkie Limited | 35 Advertising | Registered | 2018 |
| COOLACT 1596343 · TMA906345 | TAKASAGO KORYO KOGYO KABUSHIKI KAISHA (a/t/a Takasago International Corporation) | 1 Chemicals3 Cosmetics30 Coffee | Registered | 2015 |
| COLLECT 1348951 · TMA712232 | Manufacturing Systems Corp. | 9 Electronics | Registered | 2008 |
| COOLCUT 0688626 · TMA400947 | WALTER SURFACE TECHNOLOGIES INC. | 1 Chemicals3 Cosmetics4 Oils | Registered | 1992 |
| COLLACTIVE 2279022 | SCOGAL | 1 Chemicals3 Cosmetics5 Pharmaceuticals | Pending | 2023 |
| COLLECTEX 2053451 · TMA1137630 | an individual | 9 Electronics10 Medical | Registered | 2022 |
| COLCOT 1969894 · TMA1247395 | Owner not shown | 5 Pharmaceuticals42 Science | Registered | 2024 |
| COLCOT 1969882 · TMA1247396 · design | Owner not shown | 5 Pharmaceuticals42 Science | Registered | 2024 |
| COLGATE 1933433 · TMA1176050 · design | COLGATE-PALMOLIVE CANADA INC. | 3 Cosmetics5 Pharmaceuticals10 Medical+1 | Registered | 2023 |
| COLLECTOR 1756663 · TMA996816 | CONTITECH SCHLAUCH GmbH | 17 Rubber | Registered | 2018 |
| CLACT 1731733 · TMA959534 | Ming Train Ltd. | 28 Toys35 Advertising | Registered | 2017 |
| CELLASTO 1538700 · TMA861028 | BASF Polyurethanes GmbH a legal entity | 12 Vehicles17 Rubber | Registered | 2013 |
| COLGATE 1517213 · TMA817521 | COLGATE-PALMOLIVE CANADA INC. | 3 Cosmetics21 Housewares | Registered | 2012 |
| COLGATE 1283530 · TMA725931 · design | COLGATE-PALMOLIVE CANADA INC. | 3 Cosmetics | Registered | 2008 |
| cellasate 1208314 · TMA633830 | celt corporation | 5 Pharmaceuticals | Registered | 2005 |
| COLGATE 1102270 · TMA568300 | COLGATE-PALMOLIVE CANADA INC. | 30 Coffee | Registered | 2002 |
| CELLASTO 0744159 · TMA441017 | BASF Polyurethanes GmbH a legal entity | 1 Chemicals2 Paints6 Metal+5 | Registered | 1995 |
| COLGATE 0716219 · TMA443455 · design | COLGATE-PALMOLIVE CANADA INC. | 3 Cosmetics | Registered | 1995 |
| COLASIT 0235578 · TMA108244 | an individual | 1 Chemicals7 Machines9 Electronics+1 | Registered | 1957 |
| CALCUT 2347690 · design | KEEP TECHNOLOGY PTE. LTD. | 9 Electronics28 Toys35 Advertising+1 | Pending | 2024 |
| COLGATE 2165937 | COLGATE-PALMOLIVE CANADA INC. | 9 Electronics35 Advertising36 Finance+2 | Pending | 2022 |
| COLLECTIO 2054419 | Collectio Inc. | 9 Electronics36 Finance42 Science | Pending | 2020 |
| CELLUCOTTON 0099394 · TMDA26604 · design | LITTLE RAPIDS CORPORATION, (A WISCONSIN CORPORATION) | 5 Pharmaceuticals28 Toys | Registered | 1920 |
| CALLKIT 2250318 · TMA1267444 | Owner not listed | 9 Electronics | Registered | 2024 |
| COLLECTORCADE 2246948 · TMA1267149 | Owner not listed | 28 Toys | Registered | 2024 |