| COOLSTER 1424168 · TMA787383 · design | JMBH Holdings, LLC | 21 Housewares | Registered | 2011 |
| COOLSTER 1270748 · TMA724279 | JMBH Holdings, LLC | 21 Housewares | Registered | 2008 |
| COLSTAR 2167261 · TMA1280621 | BIOFARMA | 44 Medical | Registered | 2025 |
| CLUSTER 1641411 · TMA914418 | Campus Communities Inc. | 16 Paper18 Leather21 Housewares+7 | Registered | 2015 |
| CLUSTER 0431506 · TMA249584 | SIEMENS HEALTHCARE DIAGNOSTICS INC. | 5 Pharmaceuticals | Registered | 1980 |
| COOLSTART 1617237 · TMA939925 | an individual | 6 Metal11 Lighting17 Rubber+2 | Registered | 2016 |
| COLLISTAR 1380291 · TMA741621 | an individual | 3 Cosmetics5 Pharmaceuticals | Registered | 2009 |
| CHOLESTEROX 0840609 · TMA508585 | Les Laboratoires Suisse Inc. | 5 Pharmaceuticals | Registered | 1999 |
| CELLSTAR 1993800 · TMA1158684 · design | an individual | 29 Meat30 Coffee33 Wine | Registered | 2023 |
| COLESTOP 1791635 · TMA1040581 | Institut De Recherche Biologique Yves Ponroy (Canada) Inc. | 5 Pharmaceuticals | Registered | 2019 |
| COLOSTRO 1218045 · TMA637508 | Federated Co-operatives Limited | 5 Pharmaceuticals | Registered | 2005 |
| CLUSTERS 0588133 · TMA358173 | GENERAL MILLS, INC. | 30 Coffee | Registered | 1989 |
| COLESTID 0350101 · TMA188863 | PFIZER INC. | 5 Pharmaceuticals | Registered | 1973 |
| CELESTAR 2184811 · design | LGT Development LLC | 9 Electronics28 Toys35 Advertising+3 | Pending | 2022 |
| CELESTAR 2178580 | LGT Development LLC | 9 Electronics28 Toys35 Advertising+3 | Pending | 2022 |
| CALSITHERM 2233335 · TMA1254123 · design | Calsitherm Silikatbaustoffe GmbH | 19 Building | Registered | 2024 |
| CHOLESTECH 0715449 · TMA430654 | Alere San Diego, Inc. | 10 Medical | Registered | 1994 |
| COLLECTEUR 2099076 | 11112252 Canada Inc. | 3 Cosmetics5 Pharmaceuticals8 Hand+3 | Pending | 2021 |
| CELESTE 2185029 · TMA1282688 | Castrads Ltd | 11 Lighting | Registered | 2025 |
| COLGATE 1933433 · TMA1176050 · design | COLGATE-PALMOLIVE CANADA INC. | 3 Cosmetics5 Pharmaceuticals10 Medical+1 | Registered | 2023 |
| CELSTAT 1903008 · TMA1086781 | BAXTER INTERNATIONAL INC. | 5 Pharmaceuticals | Registered | 2020 |
| CALSTIM 1868280 · TMA1047464 | CalFrac Well Services Ltd. | 1 Chemicals | Registered | 2019 |
| CÉLESTE 1854325 · TMA1044236 | La Céleste Vins et Spiritueux Inc. | 32 Beer33 Wine35 Advertising+1 | Registered | 2019 |
| COOLSET 1664509 · TMA904222 | Covia Solutions Inc. | 1 Chemicals | Registered | 2015 |
| CELESTE 1634366 · TMA911870 | Owner not shown | 12 Vehicles | Registered | 2015 |