| Crescent Media Bristol Limited | Manufacturing | 2024 |
| Crescent Operations Ltd | Water & waste | 2024 |
| Cresco Building Solutions Ltd | Construction | 2023 |
| Cresco Globe Ltd | Real estate | 2017 |
| Cress Digital Ltd. | Professional & scientific | 2019 |
| Cressida Bullock Property Limited | Professional & scientific | 2019 |
| Crest Access Limited | Construction | 2018 |
| Crest Cleanroom Environments Ltd | Extraterritorial | 2022 |
| Crest Environmental Management Limited | Professional & scientific | 2023 |
| Crest Experiences Limited | Arts & recreation | 2017 |
| Crest Generation Limited | Energy | 2020 |
| Crest Group (Developments) Limited | Real estate | 2022 |
| Crest Group Limited | Hospitality | 2016 |
| Crest Hotels (Bristol) Limited | Hospitality | 2016 |
| Crest Hotels (Knowsley) Limited | Hospitality | 2002 |
| Crest Hotels (Ludlow) Limited | Hospitality | 2018 |
| Crest Hotels (Powys) Limited | Hospitality | 2022 |
| Crest Hotels (Tenby) Limited | Hospitality | 2023 |
| Crest Hotels 1 Limited | Hospitality | 2021 |
| Crest Hotels 2 Limited | Hospitality | 2023 |
| Crest Hotels Limited | Hospitality | 1998 |
| Crest Timber Products Limited | Manufacturing | 1982 |
| Crest Tree Services Limited | Administrative & support | 2014 |
| Crestacre Engineering Ltd | Manufacturing | 2002 |
| CRESTED5 Consulting Ltd | Information & communication | 2025 |
| Cresthood Properties Limited | Real estate | 2025 |
| Crestway Property Support Services Limited | Real estate | 2025 |
| Crestwood Homes Limited | Health & social care | 2025 |
| Creswicke Developments Limited | Construction | 2014 |
| Creswicke House Limited | Construction | 2011 |
| Crete Hill House Limited | Households | 1965 |
| Crew Consulting Ltd | Professional & scientific | 2015 |
| Crew Couriers 22 Limited | Transport & logistics | 2022 |
| Crew Movements UK Ltd Ltd | Transport & logistics | 2020 |
| Crew Training Ltd | Education | 2022 |
| Crewe Commercial Park Management 2 Limited | Real estate | 2018 |
| Crewe Joinery Ltd | Construction | 2021 |
| Crewkind Limited | Information & communication | 2026 |
| Crews Hole Car Sales Ltd | Wholesale & retail | 2023 |
| Crgo Ltd | Administrative & support | 2024 |
| Cribbs Causeway Merchants Association Limited | Real estate | 1998 |
| Cribbs Hand Car Wash Ltd | Wholesale & retail | 2022 |
| Cribbs Sports & Social Club (Trading) Limited | Arts & recreation | 2014 |
| Cribbs Sports & Social Club Limited | Other services | 2013 |
| Cribbs Triangle Limited | Construction | 2016 |
| Cribbscausewaysushi Limited | Hospitality | 2023 |
| Cribsncondos Ltd | Real estate | 2024 |
| Crichton Morris LLP | | 2025 |
| Crikem Industries Limited | Professional & scientific | 2017 |
| Crimefest Limited | Arts & recreation | 2018 |
| Crimmings Property Partnership Ltd | Real estate | 2023 |
| Crimongate Properties Limited | Real estate | 1962 |
| Crimson Enterprises Limited | Manufacturing | 2007 |
| Crimson HR Limited | Administrative & support | 2010 |
| Crimson Phoenix Solutions Ltd | Information & communication | 2015 |
| Crimson Radish Ltd | Extraterritorial | 2020 |
| Crimsonsummit Limited | Real estate | 2016 |
| Cripps Event Management Ltd | Professional & scientific | 2022 |
| Cris Lewis Holdings Ltd | Financial services | 2021 |
| Crisdan Ltd | Transport & logistics | 2022 |
| Crisp Design & Build Ltd | Construction | 2026 |
| Crispen Range Limited | Administrative & support | 2019 |
| Crispies Limited | Hospitality | 2006 |
| Crispins Fish & Kabab Ltd | Hospitality | 2025 |
| Crisplab Ltd | Hospitality | 2026 |
| Cristal 29 Ltd | Transport & logistics | 2023 |
| Cristavita Digital Ltd | Manufacturing | 2025 |
| Cristian Zuzunaga Limited | Professional & scientific | 2019 |
| Cristina Luxury Design Ltd | Professional & scientific | 2024 |
| Cristopher Lewis Ltd | Financial services | 2019 |
| Crisu Ltd | Construction | 2022 |
| Critereon Securities Limited | Wholesale & retail | 1974 |
| Criteria Internet Services Ltd | Information & communication | 2009 |
| Criterion IT Ltd. | Extraterritorial | 2011 |
| Criterium Construction Limited | Professional & scientific | 2020 |
| Critical Path (London) Limited | Administrative & support | 2013 |
| Critical Performance Training Limited | Education | 2019 |
| CRJ Installations (Bristol) Limited | Construction | 2017 |
| CRL Holdings (UK) Limited | Professional & scientific | 2016 |
| Crlrh Ltd | Real estate | 2025 |
| Crm-Iot Limited | Information & communication | 2022 |
| Croatia Dent Ltd | Wholesale & retail | 2022 |
| Crocotta R&D Ltd | Professional & scientific | 2013 |
| Croft Common Limited | Hospitality | 2016 |
| Croft Dental Care Limited | Health & social care | 2011 |
| Croft Vets Limited | Extraterritorial | 1999 |
| Croft View Construction Limited | Construction | 2014 |
| Crofters' Rights Limited | Hospitality | 2013 |
| Crofton Avenue Management Company Ltd | Households | 2023 |
| Crofton House Bath Limited | Households | 2015 |
| Crofton Mews Flats Management Limited | Households | 2004 |
| Crofts Property Ltd | Real estate | 2023 |
| Croftsky Limited | Information & communication | 2025 |
| Cromhall Recycling Ltd | Water & waste | 2020 |
| Cromhall Refinishing Limited | Wholesale & retail | 1998 |
| Cromwell House Flat Management Limited | Professional & scientific | 1984 |
| Cronk Limited | Information & communication | 2015 |
| Croosr Limited | Transport & logistics | 2018 |
| Croot Transport Solutions Ltd | Transport & logistics | 2012 |
| Crops for Energy Limited | Professional & scientific | 2011 |