| Chippers Brickwork Limited | Construction | 2014 |
| Chippy Alley Limited | Hospitality | 2024 |
| Chippy Lane Express Limited | Extraterritorial | 2024 |
| Chippy Lane Limited | Hospitality | 2022 |
| Chipro Starling Road Ltd | Real estate | 2015 |
| Chipx Wales Limited | Manufacturing | 2024 |
| Chirz Ltd | Information & communication | 2022 |
| Chis-Tech Ltd | Wholesale & retail | 2019 |
| Chiseldon Formwork Ltd | Administrative & support | 2018 |
| Chitz Couriers Ltd | Transport & logistics | 2020 |
| Chivan Ltd | Wholesale & retail | 2025 |
| Chivic 7309 Ltd | Health & social care | 2016 |
| Chixstock Ltd | Hospitality | 2024 |
| Chjmre Trading Ltd | Wholesale & retail | 2025 |
| Chlaraclidk Limited | Manufacturing | 2026 |
| Chlipse Ltd | Wholesale & retail | 2026 |
| Chloe EVE Mcquillan Limited | Wholesale & retail | 2025 |
| Chloe Services Limited | Construction | 2025 |
| Choboma Design Ltd | Wholesale & retail | 2025 |
| Chocchurros Ltd | Hospitality | 2018 |
| Chocoberry Cardiff Benefits Ltd | Administrative & support | 2022 |
| Chocolate Comic Limited | Professional & scientific | 2014 |
| Chocolateway Limited | Wholesale & retail | 2025 |
| Chocomelt Station Ltd | Hospitality | 2024 |
| Choice Cartridges Limited | Wholesale & retail | 2015 |
| Choice Events Ltd | Arts & recreation | 2019 |
| Choice Facilities Limited | Construction | 2011 |
| Choirs for Good Ltd | Education | 2020 |
| Cholan Management Services Ltd | Construction | 2018 |
| Cholan Services Ltd | Professional & scientific | 2016 |
| Chongqing Dingshen Film and Television Culture Communication Co., Limited | Wholesale & retail | 2025 |
| Chook Voigt Music Education Limited | Education | 2017 |
| Choose Clarity Ltd | Information & communication | 2016 |
| Chop Chop Junction Ltd | Hospitality | 2024 |
| Chop Suey House (Hay-On-Wye) Limited | Hospitality | 2011 |
| Chopstix Sherwood Ltd | Hospitality | 2019 |
| Choreline Ltd | Administrative & support | 2019 |
| Chores & Paws International Ltd | Other services | 2020 |
| Chorley Vape Ltd | Wholesale & retail | 2024 |
| Choroukate Ltd | Other services | 2025 |
| Choudhary Production Ltd | Wholesale & retail | 2022 |
| CHP Accountants Limited | Professional & scientific | 2020 |
| Chris B Consulting Ltd | Professional & scientific | 2017 |
| Chris Clarke Surveyors Limited | Professional & scientific | 2007 |
| Chris DA Burgers Ltd | Hospitality | 2018 |
| Chris Denning Sports Cars Limited | Wholesale & retail | 2015 |
| Chris Edwards Consulting Ltd | Hospitality | 2024 |
| Chris Hill Traffic Services Ltd | Other services | 2019 |
| Chris Jones Animation Limited | Information & communication | 2016 |
| Chris Leach and Associates Limited | Financial services | 1983 |
| Chris Outlet Ltd | Wholesale & retail | 2023 |
| Chris Waite Car Sales Limited | Wholesale & retail | 1996 |
| Chris Woods Wealth Management Limited | Professional & scientific | 2018 |
| Chris' Rucksack Ltd | Financial services | 2025 |
| Chrismark Care Ltd | Health & social care | 2016 |
| Chrisp Kiro Ltd | Wholesale & retail | 2025 |
| Christ College Holiday Activities Limited | Hospitality | 1989 |
| Christian James (Holdings) Limited | Financial services | 2019 |
| Christian Lincoln Enterprise Limited | Information & communication | 2015 |
| Christie Wells Associates Limited | Professional & scientific | 2010 |
| Christina Bunad Limited | Extraterritorial | 2021 |
| Christopher Cars Limited | Wholesale & retail | 2025 |
| Christopher Felstead Limited | Professional & scientific | 2024 |
| Christopher George Jewellers Limited | Wholesale & retail | 1994 |
| Christopher Health Ltd | Wholesale & retail | 2025 |
| Christopher Milton Limited | Construction | 2021 |
| Christopher Shannon Limited | Manufacturing | 2010 |
| Christson Ltd | Information & communication | 2025 |
| Christy Carpets Limited | Wholesale & retail | 2007 |
| Christyne Ltd | Wholesale & retail | 2024 |
| Chroma House Ltd | Other services | 2026 |
| Chromaveld Ltd | Wholesale & retail | 2025 |
| Chrome Roses Pole Dance Newport Ltd | Arts & recreation | 2021 |
| Chrome Surgical Ltd. | Manufacturing | 2015 |
| Chromosphere Limited | Arts & recreation | 2011 |
| Chromx Ltd | Wholesale & retail | 2019 |
| Chronoformtech Ltd | Information & communication | 2025 |
| Chronos Home Improvements Ltd | Construction | 2016 |
| Chronoset Ltd | Professional & scientific | 2025 |
| Chrtr Euro Logic Ltd | Information & communication | 2025 |
| Chrysalis Accounting & Payroll Solutions Limited | Administrative & support | 2018 |
| Chrysalis Commons Earth Limited | Information & communication | 2023 |
| Chrysalis Endeavours Limited | Construction | 2015 |
| Chrysalis Foods Ltd | Hospitality | 2024 |
| Chrysmart Technovation Limited | Information & communication | 2025 |
| Chrysos Holdings Limited | Financial services | 2022 |
| Chtain Group Limited | Manufacturing | 2024 |
| Chuangyi Group Ltd | Professional & scientific | 2018 |
| Chubs Property Rentals Limited | Hospitality | 2016 |
| Chucas Ltd | Health & social care | 2022 |
| Chuck Daniels Ltd | Information & communication | 2025 |
| Chudy Lets Limited | Households | 2024 |
| Chughtai Surgery Ltd | Health & social care | 2024 |
| Chung LIM Holdings Limited | Financial services | 2025 |
| Chung LIM Limited | Real estate | 2004 |
| Chung Shing Clothing Imports Ltd | Wholesale & retail | 2018 |
| Chung Shing Takeaway Ltd | Hospitality | 2013 |
| Chungi Limited | Wholesale & retail | 2025 |
| Chunlian Business Limited | Wholesale & retail | 2024 |
| Chunshui Limited | Wholesale & retail | 2025 |