| CROSSVENT 1227424 · TMA695732 | ATLAS ROOFING CORPORATION | 17 Rubber | Registered | 2007 |
| CROSSVILLE 2294239 | an individual | 19 Building | Pending | 2023 |
| CROSSVU 2068139 · TMA1168379 | Tetra Tech, Inc. | 9 Electronics | Registered | 2023 |
| CROWSFOOT 1984221 · TMA1269270 | IGNITE GROUP OF BRANDS INC. | 29 Meat30 Coffee33 Wine+2 | Registered | 2024 |
| CROSSFLY 1956225 · TMA1278089 | Uber Holdings Limited | 9 Electronics18 Leather25 Clothing | Registered | 2024 |
| CROSSBOW 1917188 · TMA1111782 | Padley & Venables Limited | 7 Machines42 Science | Registered | 2021 |
| CROSSVIEW 1913276 · TMA1106235 | Inrock Drilling Systems, Inc. | 9 Electronics | Registered | 2021 |
| CROSSFIT 1790794 · TMA1027474 | CrossFit, LLC | 5 Pharmaceuticals9 Electronics10 Medical+6 | Registered | 2019 |
| CROSSFIT 1635715 · TMA942899 | CrossFit, LLC | 9 Electronics25 Clothing36 Finance+3 | Registered | 2016 |
| CROSSBOSS 1397787 · TMA800713 | Boston Scientific Scimed, Inc. | 10 Medical | Registered | 2011 |
| CrossFit 1341997 · TMA763025 | an individual | 10 Medical | Registered | 2010 |
| CROSSFIT 1289074 · TMA758306 | CrossFit, LLC | 41 Education | Registered | 2010 |
| CROSSBOW 1103804 · TMA606082 | an individual | 10 Medical | Registered | 2004 |
| CROSSBOW 1083533 · TMA578696 | Padley & Venables Limited | 7 Machines | Registered | 2003 |
| CROSSBET 2140845 | Cross Bet Holdings Pty. Ltd. | 9 Electronics28 Toys35 Advertising+2 | Pending | 2021 |
| CrossBoard 2317103 | Wöhner Besitz GmbH | 9 Electronics | Pending | 2024 |
| CROSSCABRIOLET 1463831 · TMA801770 | NISSAN JIDOSHA KABUSHIKI KAISHA (also trading as NISSAN MOTOR CO. LTD.) | 12 Vehicles | Registered | 2011 |
| CROSSOVER 2148057 · TMA1187808 | Crossover Markets, LLC | 35 Advertising42 Science | Registered | 2023 |
| CROSSFLOW 2136965 · TMA1177990 | STRYKER CORPORATION | 10 Medical | Registered | 2023 |
| CROSSOVER 2114287 · TMA1193530 | Transform SR Brands LLC a Delaware corporation | 7 Machines | Registered | 2023 |
| CROCKPOT 2069315 · TMA1169936 · design | Sunbeam Products, Inc. | 11 Lighting | Registered | 2023 |
| CROSSFLEX 1910803 · TMA1089624 · design | an individual | 14 Jewellery25 Clothing | Registered | 2020 |
| CROSSPRO 1813895 · TMA994748 · design | Shandong Jinyu Tire Co. Ltd. | 12 Vehicles | Registered | 2018 |
| CROSSFIRE 1800441 · TMA990872 | an individual | 13 Firearms | Registered | 2018 |
| CROSSFIRE 1781892 · TMA1037413 | XF Sports, LLC | 25 Clothing41 Education | Registered | 2019 |