| Cree LLP | | 2023 |
| Creekmoor Developments Ltd | Construction | 2019 |
| Crelo Ltd | Professional & scientific | 2026 |
| Crescent Express Ltd | Wholesale & retail | 2023 |
| Crescent Gardens Management Limited | Households | 1987 |
| Crescent Lodge Management Limited | Households | 1988 |
| Crescent Racing Limited | Professional & scientific | 2002 |
| Crescent Road (Alverstoke) Residents Management Company Limited | Households | 2025 |
| Cresdeen Bournemouth RTM Company Limited | Households | 2026 |
| Crest Software Limited | Information & communication | 1990 |
| Crete Island Ltd | Hospitality | 2025 |
| Crewstone Limited | Professional & scientific | 1985 |
| Cribbys Limited | Hospitality | 2023 |
| Crich Associates Limited | Professional & scientific | 2010 |
| Crichel Properties (Management) Limited | Real estate | 2014 |
| Crichel Properties Limited | Extraterritorial | 2014 |
| Cricketers Developments Limited | Construction | 2024 |
| Crisante Consulting Ltd | Professional & scientific | 2013 |
| Crispyduck Props Ltd | Information & communication | 2019 |
| Critical Cooling Solutions Ltd | Professional & scientific | 2025 |
| Critical Media Limited | Administrative & support | 2008 |
| Crizan Media Limited | Information & communication | 2017 |
| CRM Design and Support Limited | Information & communication | 2019 |
| CRM Euro Solutions 4ALL Ltd | Information & communication | 2013 |
| CRO Business Development Ltd | Administrative & support | 2025 |
| Croaghmere Consulting Limited | Professional & scientific | 2019 |
| Crocospeed Ltd | Wholesale & retail | 2019 |
| Croft Estates Limited | Households | 2015 |
| Croft Lenko Management Ltd | Real estate | 2014 |
| Croft Road Flats (Management) Limited | Households | 1974 |
| Cromer Road Freehold Limited | Households | 2010 |
| Crompton Developments (Poole) Limited | Real estate | 2017 |
| Crompton Serviced Accommodation Limited | Hospitality | 2018 |
| Cromwell Estate Properties Ltd | Real estate | 2024 |
| Crookham Health Ltd | Wholesale & retail | 2025 |
| Crosby Court (Barton-On-Sea) Limited | Real estate | 1961 |
| Crosby Court Management (Bournemouth) Limited | Households | 1960 |
| Crosshatch Limited | Administrative & support | 2011 |
| Crossmead Estates LLP | | 2015 |
| Crosstown Holdings Limited | Real estate | 2015 |
| Crosstown Investments Limited | Real estate | 2018 |
| Crossways Automotives Limited | Real estate | 2023 |
| Crossways Overland Limited | Wholesale & retail | 2023 |
| Crossways Trailers Limited | Manufacturing | 2010 |
| Crowe Hill Court Limited | Households | 1971 |
| Crown Pearls Ltd | Health & social care | 2022 |
| Croxlock Recruitment Services Ltd | Administrative & support | 2023 |
| Crozier Finch Limited | Financial services | 2014 |
| CRR Electrical Ltd | Construction | 2025 |
| Crra Limited | Households | 2003 |
| Crsel Limited | Transport & logistics | 2026 |
| Crssbrdr Limited | Professional & scientific | 2024 |
| Crusader Contract Cleaners Limited | Administrative & support | 2004 |
| Crusader Court Management Company Limited | Households | 1983 |
| Cruse Estate Services Ltd | Professional & scientific | 2025 |
| Crutcher Holdings Ltd | Real estate | 2026 |
| Cruxo Ltd | Information & communication | 2018 |
| Crystal Clean DRY Cleaners Limited | Administrative & support | 2005 |
| Crystal Clean Laundry Limited | Other services | 2026 |
| Crystal Clear Technology Group Limited | Information & communication | 2018 |
| Crystal Clear Telecom Limited | Information & communication | 2013 |
| Crystal Cove Ltd | Real estate | 2018 |
| Crystal Flats Ltd | Real estate | 2026 |
| Crystal Nails Limited | Other services | 2021 |
| Crytech Ltd | Information & communication | 2021 |
| CS Fire and Electrical Ltd | Construction | 2024 |
| CS Media Consultancy Ltd | Information & communication | 2026 |
| CSD Elite Property Cleaning Ltd | Administrative & support | 2026 |
| CSJ PUB Co Ltd | Hospitality | 2025 |
| CSM Associates Limited | Financial services | 2019 |
| CSP Tiling Ltd | Construction | 2019 |
| CSR Fire Doors Ltd | Public administration | 2024 |
| CT Life Coaching Limited | Education | 2019 |
| CT2 Developments Ltd | Construction | 2004 |
| CTA Leisure Limited | Administrative & support | 2017 |
| CTR Planning Limited | Professional & scientific | 2024 |
| Cubeitz Group Limited | Extraterritorial | 2018 |
| Cubie Education Limited | Education | 2020 |
| Cubitech Limited | Wholesale & retail | 2001 |
| Cuco Ltd | Professional & scientific | 2012 |
| Cuffern Lodge Limited | Households | 2012 |
| Culbrook Limited | Administrative & support | 2010 |
| Culford Court RTM Company Limited | Households | 2014 |
| Culinary Wanders Ltd | Wholesale & retail | 2025 |
| Cultra Limited | Information & communication | 2024 |
| Culverdene Properties Limited | Households | 1995 |
| Cumberland Court Residents Limited | Households | 1990 |
| Cupe Investments Limited | Wholesale & retail | 2022 |
| Cura Body Ltd | Manufacturing | 2023 |
| Curiosity Creates Ltd | Professional & scientific | 2021 |
| Curly Angels Ltd | Health & social care | 2022 |
| Curlybrace Apps Ltd | Information & communication | 2012 |
| Curry Feast 17 Ltd | Hospitality | 2026 |
| Curry Kart Ltd | Wholesale & retail | 2025 |
| Curry Merchant Ltd | Hospitality | 2025 |
| Custodis Financial Planning Limited | Professional & scientific | 2014 |
| Custodis Wills & Estate Planning Limited | Professional & scientific | 2010 |
| Custom Accounting Services Ltd | Other services | 2019 |
| Custom CUT Spokes Ltd | Wholesale & retail | 2021 |
| Custom IT Hardware Ltd | Information & communication | 2002 |