| CPR Contracting and Fit OUT Limited | Construction | 2019 |
| CPR Engineering Design Ltd | Professional & scientific | 2024 |
| CPR Shopfitting (Holdings) Limited | Administrative & support | 2016 |
| CPS (European) Ltd | Wholesale & retail | 2009 |
| CPS 12190017 Limited | Construction | 2019 |
| CPS Academy CIC | Hospitality | 2025 |
| CPS Group (UK) Limited | Administrative & support | 2002 |
| CPS Harris Ltd | Financial services | 2023 |
| CPS Harris Properties 2 Ltd | Extraterritorial | 2025 |
| CPS Metals Limited | Wholesale & retail | 2013 |
| CPS Property Management Limited | Real estate | 2004 |
| Cqvita Limited | Wholesale & retail | 2025 |
| CR & Sons Services Ltd | Construction | 2018 |
| CR Design Ltd | Professional & scientific | 2010 |
| CR Kennard Consulting Ltd | Professional & scientific | 2024 |
| CR Recruitment Supply Services Limited | Professional & scientific | 2025 |
| CR Traders Limited | Wholesale & retail | 2020 |
| Crab Events Co. Limited | Arts & recreation | 2019 |
| Crab Shack Holdings Limited | Financial services | 2019 |
| Crab Shack Restaurants Limited | Hospitality | 2016 |
| Crabapple Wind Ltd | Wholesale & retail | 2026 |
| Crabb Family Enterprises Limited | Financial services | 2021 |
| Crabtree Collective Ltd | Wholesale & retail | 2025 |
| Craft Bar (Yorkshire) Ltd | Hospitality | 2018 |
| Craft Cardiff Central Ltd | Hospitality | 2026 |
| Craft Coffee Club Ltd | Wholesale & retail | 2018 |
| Craft Enlightenment Ltd | Wholesale & retail | 2024 |
| Craft Shop Limited | Wholesale & retail | 2020 |
| Craft Tech LAB Ltd | Wholesale & retail | 2023 |
| Crafted by Artista Ltd | Wholesale & retail | 2023 |
| Crafted Spaces Construction Ltd | Construction | 2026 |
| Crafting Codes Ltd | Wholesale & retail | 2024 |
| Craftkech Ltd | Manufacturing | 2020 |
| Craftmenship Limited | Wholesale & retail | 2026 |
| Craftsman by Trade Ltd | Wholesale & retail | 2019 |
| Craftsman Ways Ltd | Construction | 2024 |
| Craftswill Limited | Wholesale & retail | 2023 |
| Crafty Devil Brewing Ltd | Wholesale & retail | 2014 |
| Crafty Devil Cellar Ltd | Hospitality | 2017 |
| Crafty Devil Penarth Taproom Limited | Hospitality | 2022 |
| Craidd CYF | Professional & scientific | 2008 |
| Craig Consultancy Ltd | Administrative & support | 2016 |
| Craig Paul Hairdressing Limited | Other services | 2019 |
| Craig Rogers Consulting Ltd | Information & communication | 2016 |
| Craig Stoutt Props Ltd | Arts & recreation | 2021 |
| Craig Thompson Real Estate Ltd | Real estate | 2020 |
| Craig YR EOS Management Company Limited | Households | 2002 |
| Craig YR Haul Management Company Limited | Households | 2010 |
| Cranbrook Training Public Limited Company | | 1981 |
| Cranc Cyfyngedig | Information & communication | 2004 |
| Crandon Properties Limited | Real estate | 2021 |
| Crane & Faris Limited | Professional & scientific | 2017 |
| Crane Medical Ltd | Health & social care | 2016 |
| Cranegates Ltd. | Construction | 1991 |
| Cranes Brands Limited | Extraterritorial | 2004 |
| Craneswater Capital Limited | Financial services | 2025 |
| Cranford Environmental Advisors Limited | Water & waste | 2001 |
| Cranley Construction Co. Limited | | 1979 |
| Cranley Investments Limited | Transport & logistics | 1993 |
| Crann Gaoithe Limited | Administrative & support | 2013 |
| Crass Ltd | Administrative & support | 2015 |
| Cratis Technologies Ltd | Financial services | 2019 |
| Cratos Services Limited | Financial services | 2019 |
| Crave House Ltd | Hospitality | 2025 |
| Crawdale Construction Limited | Construction | 2014 |
| Crawford Investments Ltd | Real estate | 2019 |
| Crawford Serviced Apartments Ltd | Real estate | 2019 |
| Crazea Ltd | Wholesale & retail | 2019 |
| Crazy Digital Ltd | Wholesale & retail | 2025 |
| Crazy Love Ltd | Wholesale & retail | 2025 |
| Crazy Times Ltd | Professional & scientific | 2020 |
| CRB551 Limited | Information & communication | 2025 |
| CRC General Builidng & Developments Ltd | Construction | 2020 |
| CRC Trading 2026 Limited | Arts & recreation | 2026 |
| CRE Business Consulting Group Limited | Wholesale & retail | 2020 |
| CRE8 Virtual Tours Limited | Professional & scientific | 2019 |
| Creaddict Ltd | Wholesale & retail | 2025 |
| Cream Quarters Ltd | Hospitality | 2025 |
| Cream Whirls Ltd | Wholesale & retail | 2019 |
| Creamy Cookies Ltd | Wholesale & retail | 2026 |
| Crean Construction (Cardiff) Limited | Real estate | 2013 |
| Crean Construction (UK) Ltd | Construction | 2017 |
| Crean Construction Limited | Construction | 2000 |
| Crean Electrical Ltd | Construction | 2020 |
| Creasedwhitet Ltd. | Wholesale & retail | 2013 |
| Creatables Limited | Professional & scientific | 2015 |
| Creatck Network Technology Ltd | Extraterritorial | 2021 |
| Create (Wales) Limited | Administrative & support | 2001 |
| Create 2 Publish Ltd | Professional & scientific | 2026 |
| Create Houses Limited | Real estate | 2022 |
| Create Look Ltd | Extraterritorial | 2017 |
| Create Salon Limited | Other services | 2020 |
| Create Technology Group Ltd | Information & communication | 2019 |
| Create With Meaning Limited | Professional & scientific | 2026 |
| Created Different Ltd | Administrative & support | 2021 |
| Created Entertainment Ltd | Professional & scientific | 2025 |
| Createforall Limited | Wholesale & retail | 2005 |
| Creaticks Ltd | Administrative & support | 2024 |
| Creating Answers Ltd | Professional & scientific | 2013 |
| Creation & Harmonie Ltd | Financial services | 2019 |