| CROSSNAV 2060524 · TMA1203793 | DePuy Synthes, Inc. | 10 Medical | Registered | 2023 |
| CROSSMED 2093666 | Crossmed Inc. | 5 Pharmaceuticals10 Medical35 Advertising | Pending | 2021 |
| CRUISENET 0783830 · TMA462780 | Cruisenet Travel Inc. | 35 Advertising39 Transport | Registered | 1996 |
| CROISSANT 2188890 | Croissant Pay, Inc. | 9 Electronics35 Advertising36 Finance+1 | Pending | 2022 |
| CROISSANT 2033779 | Mejuri Inc. | 14 Jewellery35 Advertising | Pending | 2020 |
| CROSSAIM 1690397 · TMA932358 | Celestron Acquisition, LLC | 9 Electronics | Registered | 2016 |
| CROSSCAN 1519799 · TMA858843 · design | crosscan GmbH | 9 Electronics35 Advertising38 Telecommunications+2 | Registered | 2013 |
| CARESNET 1196397 · TMA647964 · design | CANADIAN ASSOCIATION OF BLUE CROSS PLANS | 35 Advertising36 Finance | Registered | 2005 |
| CARESNET 1160847 · TMA603800 | CANADIAN ASSOCIATION OF BLUE CROSS PLANS | 35 Advertising36 Finance42 Science | Registered | 2004 |
| CROSSMOUNT 1767534 · TMA961299 · design | KENMORE LAND CO. LTD. | 36 Finance43 Restaurants | Registered | 2017 |
| CROSSMATCH 1725045 · TMA947829 · design | HID Global Corporation | 9 Electronics42 Science45 Legal | Registered | 2016 |
| CROSSMATCH 1725044 · TMA995566 | HID Global Corporation | 9 Electronics42 Science45 Legal | Registered | 2018 |
| CROSSKNIFE 1527859 · TMA828032 | HANGZHOU YUHANG YUANDA INDUSTRIAL CO. LTD. | 18 Leather | Registered | 2012 |
| CROSSWINDS 1146789 · TMA595487 | 1652152 Ontario Inc. | 16 Paper18 Leather24 Textiles+3 | Registered | 2003 |
| CROSSWINDS 1021019 · TMA539833 | COLIO ESTATE WINES INC. | 33 Wine | Registered | 2001 |
| CrossContact 1276947 · TMA678976 | CONTINENTAL REIFEN DEUTSCHLAND GMBH | 12 Vehicles | Registered | 2007 |
| CROSSWIND 2158555 · TMA1196008 | RAYPAK, INC. | 7 Machines | Registered | 2023 |
| CROSSCAMP 1984713 · TMA1257330 | an individual | 12 Vehicles | Registered | 2024 |
| CROSSKING 1832681 · TMA1009073 · design | CONTINENTAL REIFEN DEUTSCHLAND GMBH | 12 Vehicles | Registered | 2018 |
| CROSSWIND 1638081 · TMA943375 | Shandong Linglong Tyre Co.Ltd. | 12 Vehicles17 Rubber | Registered | 2016 |
| CROSSWING 1310085 · TMA773558 | CROSSWING INC. | 42 Science | Registered | 2010 |
| CRUSHNOTE 2286226 | Owner not listed | 9 Electronics45 Legal | Pending | 2023 |
| CROISSANTON 2259141 · TMA1279297 | an individual | 30 Coffee35 Advertising | Registered | 2024 |
| CRYOCONNECT 2126355 · TMA1226837 | Linde GmbH | 38 Telecommunications | Registered | 2024 |
| CROISSUNDAY 1724408 · TMA951865 | NADEGE PATISSERIE LTD. | 30 Coffee35 Advertising41 Education+1 | Registered | 2016 |