| CRESTON 2335033 | NClear Inc. | 1 Chemicals11 Lighting37 Construction+1 | Pending | 2024 |
| CRYSTOLON 0091070 · TMDA22818 · design | Saint-Gobain Ceramics & Plastics, Inc. | 8 Hand9 Electronics11 Lighting+4 | Registered | 1917 |
| CRESTRON 2022665 · TMA1129255 | CRESTRON ELECTRONICS, INC. | 9 Electronics20 Furniture | Registered | 2022 |
| Cryostor 1835037 · TMA1008630 | Biolife Solutions, Inc. | 1 Chemicals | Registered | 2018 |
| CrystEna 1648713 · TMA1033632 | an individual | 9 Electronics11 Lighting | Registered | 2019 |
| CRESTRON 1377276 · TMA749096 | CRESTRON ELECTRONICS, INC. | 9 Electronics20 Furniture | Registered | 2009 |
| CRYSTAR 2129935 · TMA1210876 | FURYU CORPORATION | 9 Electronics | Registered | 2023 |
| CRYSTAL 2030866 · TMA1129942 | SodaStream (Switzerland) GmbH | 6 Metal7 Machines21 Housewares | Registered | 2022 |
| CRYSTAL 1964346 · TMA1144973 | Bitfury Group Limited | 9 Electronics42 Science | Registered | 2022 |
| CRYSTAR 1784217 · TMA986891 | Saint-Gobain Ceramics & Plastics, Inc. | 7 Machines11 Lighting | Registered | 2017 |
| CRYSTAL 1783685 · TMA976916 | Clotures Frontenac Inc. | 6 Metal19 Building | Registered | 2017 |
| CRYSTEX 1773260 · TMA989240 | LATICRETE INTERNATIONAL, INC. | 19 Building | Registered | 2018 |
| CRYSTAL 1762045 · TMA1012588 | Crystal Cruises Ltd. | 39 Transport | Registered | 2019 |
| CRYSTAL 1757249 · TMA953698 | Universal Entertainment Corporation | 28 Toys | Registered | 2016 |
| CRYSTAL 1719998 · TMA1049248 · design | Crystal Cruises Ltd. | 43 Restaurants | Registered | 2019 |
| CRYSTAL 1719997 · TMA1049239 | Crystal Cruises Ltd. | 43 Restaurants | Registered | 2019 |
| CRYSTAL 1699833 · TMA982943 | Rijk Zwaan Zaadteelt en Zaadhandel B.V. A company organised and existing under the laws of The Netherlands | 31 Fresh | Registered | 2017 |
| CRYSTAL 1647686 · TMA923822 | Crystal Fountains Holdings Inc. a legal entity | 9 Electronics11 Lighting37 Construction+1 | Registered | 2015 |
| CRYSTAL 1573244 · TMA913601 | S. F. Lo Pharmacy Inc. | 35 Advertising | Registered | 2015 |
| CRYSTAL 1466082 · TMA809019 · design | Richardson International Limited | 29 Meat | Registered | 2011 |
| CRYSTAL 1466079 · TMA809297 · design | Richardson International Limited | 29 Meat | Registered | 2011 |
| CRYSTA 1430181 · TMA845285 | Kabushiki Kaisha Square Enix (also trading as Square Enix Co. Ltd.) | 36 Finance | Registered | 2013 |
| CRYSTAL 1277317 · TMA810609 | Spinal Elements, Inc. | 10 Medical | Registered | 2011 |
| CRYSTAL 1144205 · TMA577426 | LA COMPAGNIE U.S. COTON (CANADA) CO./U.S. COTTON (CANADA) CO. | 3 Cosmetics5 Pharmaceuticals21 Housewares | Registered | 2003 |
| CRYSTEK 1122042 · TMA587156 | Crystek Crystals Corporation a corporation organized under the laws of Florida | 9 Electronics | Registered | 2003 |