| COLLACTIVE 2279022 | SCOGAL | 1 Chemicals3 Cosmetics5 Pharmaceuticals | Pending | 2023 |
| Collectivei 2015492 · TMA1212785 | Cross Commerce Media, Inc. | 42 Science | Registered | 2023 |
| COLLECTIVES 2218175 · design | Stack Exchange, Inc. | 38 Telecommunications42 Science | Pending | 2022 |
| CHILLACTIVE 2205598 | SEALY CANADA LTD./LTEE. | 20 Furniture24 Textiles | Pending | 2022 |
| CELLECTIVE 1534332 · TMA851050 · design | an individual | 3 Cosmetics | Registered | 2013 |
| Cellective 2363389 | CellEctric Biosciences GmbH | 9 Electronics10 Medical42 Science+1 | Pending | 2024 |
| COLLECTIONE 1388730 · TMA750358 · design | Messe Frankfurt Exhibition GmbH | 35 Advertising37 Construction39 Transport+2 | Registered | 2009 |
| COLLECTIVFIDE 2015929 · TMA1146626 | Collectivfide Insurance Group Inc. | 36 Finance | Registered | 2022 |
| COLLECTION 1725163 · TMA956620 · design | LES BRASSEURS DU NORD INC. | 32 Beer | Registered | 2016 |
| CELIACTION 1654440 · TMA926184 | Alvine Pharmaceuticals, Inc. | 5 Pharmaceuticals | Registered | 2016 |
| COLLECTION 1408595 · TMA872212 · design | ASHLEY NETTYE, INC. | 25 Clothing | Registered | 2014 |
| CELLACTOSE 0557360 · TMA365631 | an individual | 1 Chemicals4 Oils5 Pharmaceuticals+3 | Registered | 1990 |
| COLLECTING 2236700 | Owner not listed | 9 Electronics25 Clothing35 Advertising+1 | Pending | 2022 |
| COLLECTIPEDE 1960054 · TMA1173085 | Cyber Crucible, Inc. | 9 Electronics | Registered | 2023 |
| 206 Collective 1835316 · TMA1028918 | Amazon Technologies, Inc. | 25 Clothing | Registered | 2019 |
| ClockTime+ 1986299 · TMA1132623 | an individual | 14 Jewellery | Registered | 2022 |
| COLGATE 1933433 · TMA1176050 · design | COLGATE-PALMOLIVE CANADA INC. | 3 Cosmetics5 Pharmaceuticals10 Medical+1 | Registered | 2023 |
| CELECTIC 1801464 · TMA1066124 | an individual | 35 Advertising | Registered | 2019 |
| CLICKTITE 1782998 · TMA1015942 | voestalpine Railway Systems Nortrak LLC | 6 Metal | Registered | 2019 |
| CLACT 1731733 · TMA959534 | Ming Train Ltd. | 28 Toys35 Advertising | Registered | 2017 |
| CÉLESTINE 1635868 · TMA892339 · design | FROMAGERIE L'OISEAU BLEU INC. | 29 Meat | Registered | 2014 |
| COOLACT 1596343 · TMA906345 | TAKASAGO KORYO KOGYO KABUSHIKI KAISHA (a/t/a Takasago International Corporation) | 1 Chemicals3 Cosmetics30 Coffee | Registered | 2015 |
| COLGATE 1517213 · TMA817521 | COLGATE-PALMOLIVE CANADA INC. | 3 Cosmetics21 Housewares | Registered | 2012 |
| COLGATE 1283530 · TMA725931 · design | COLGATE-PALMOLIVE CANADA INC. | 3 Cosmetics | Registered | 2008 |
| COLGATE 1102270 · TMA568300 | COLGATE-PALMOLIVE CANADA INC. | 30 Coffee | Registered | 2002 |