| Creative Honour Boards Limited | Manufacturing | 2016 |
| Creative Mapping Limited | Extraterritorial | 2011 |
| Creative Planning (Education) Ltd | Education | 2002 |
| Creative Sisters Ltd | Wholesale & retail | 2019 |
| Creative Space Installs Ltd | Construction | 2024 |
| Creative Text Ltd | Professional & scientific | 2012 |
| Creative Tileworks Ltd | Construction | 2026 |
| Creative Torque Limited | Professional & scientific | 2015 |
| Creativity Media Services (Northampton) Ltd | Information & communication | 2020 |
| Creaton Spice Ltd | Hospitality | 2023 |
| Creator Cloud Ltd | Other services | 2015 |
| Crecy Court Management Company Limited | Households | 2016 |
| Credenza Limited | Professional & scientific | 2001 |
| Credit Assist Limited | Information & communication | 2003 |
| Credit Control Limited | Professional & scientific | 2024 |
| Credivet Limited | Professional & scientific | 2020 |
| Creed Interiors Limited | Construction | 2017 |
| Crematorium Music Limited | Administrative & support | 1949 |
| Crescent Camel Limited | Wholesale & retail | 2023 |
| Crescent Home Limited | Health & social care | 1981 |
| Cresser Wealth Management Ltd | Financial services | 2019 |
| Crest Brickwork Services Ltd. | Construction | 2018 |
| Crest Building and Maintenance Limited | Real estate | 1997 |
| Crest Holdings Group Limited | Financial services | 2025 |
| Crest Maintenance and Services Limited | Extraterritorial | 2022 |
| Crest Scaffolding Services Limited | Construction | 1998 |
| Crestera Group Ltd | Financial services | 2025 |
| Crestera SPV 01 Ltd | Real estate | 2026 |
| Crestlinecontent Ltd | Information & communication | 2025 |
| Cretan Construction Services Ltd | Construction | 2026 |
| Cretan PVT Ltd | Real estate | 2024 |
| Cretu Gbmg Ltd | Construction | 2026 |
| Crew Contractors Limited | Construction | 2010 |
| CRF Electrics Limited | Construction | 2024 |
| Crft Consultancy Ltd | Professional & scientific | 2025 |
| Crgilmor Ltd | Health & social care | 2025 |
| Crick Auto Services Limited | Wholesale & retail | 2008 |
| Crick EX Servicemen's Club Limited | Hospitality | 2013 |
| Crick Handyman Ltd | Other services | 2020 |
| Crick Pre-School | Education | 2013 |
| Crick Software Limited | Wholesale & retail | 1996 |
| Crick Wharf Marina Ltd | Transport & logistics | 2020 |
| Cricket House Ltd | Wholesale & retail | 2025 |
| Crihan Group Limited | Administrative & support | 2016 |
| Crimewave Holdings Limited | Financial services | 2021 |
| Crimewave Ltd | Administrative & support | 2013 |
| Crimson Investments Limited | Other services | 2015 |
| Crisali Limited | Transport & logistics | 2014 |
| Criseli Limited | Transport & logistics | 2009 |
| Crispin Concrete Services Ltd | Construction | 2025 |
| Crispin Recruitment Ltd | Administrative & support | 2021 |
| Crispy Seoul Ltd | Wholesale & retail | 2024 |
| Crisstef Ltd | Administrative & support | 2016 |
| Cristalina Ltd | Hospitality | 2026 |
| Cristely Ltd | Transport & logistics | 2014 |
| Cristian and SON Ltd | Wholesale & retail | 2018 |
| Cristian Iacob Popa Ltd | Transport & logistics | 2019 |
| Cristian IT Corporate Ltd | Information & communication | 2026 |
| Cristian Services Consulting Limited | Professional & scientific | 2015 |
| Cristian Virna & SON Ltd | Transport & logistics | 2025 |
| Cristina Petcu Ltd | Construction | 2026 |
| Critical Control Solutions Ltd | Construction | 2017 |
| Crivalle Developments Ltd | Construction | 2026 |
| Crlogistics Ltd | Transport & logistics | 2026 |
| CRM Haulage Ltd | Transport & logistics | 2026 |
| Crockett and Jones Limited | Manufacturing | 1948 |
| Croft House RTM Company Ltd | Households | 2021 |
| Crofts Property Consultants Ltd | Real estate | 2019 |
| Croftware Ltd | Information & communication | 2023 |
| Cromnor CIC | Wholesale & retail | 2022 |
| Cromwell Management Company Limited | Households | 1982 |
| Cronus Security Solutions Limited | Administrative & support | 2026 |
| Crook Supply Ltd | Wholesale & retail | 2026 |
| Crop Consultancy LLP | | 2011 |
| Crophive Limited | Agriculture & fishing | 2025 |
| Cropper Hire Ltd | Construction | 2023 |
| Cropthorne Court Property Limited | Real estate | 2021 |
| Cross & Blackham Roofing Ltd | Construction | 2015 |
| Cross & White Ltd | Other services | 2025 |
| Cross Continental Logistics Limited | Transport & logistics | 2020 |
| Cross Country Distribution Limited | Transport & logistics | 1999 |
| Cross Fitz Limited | Information & communication | 2014 |
| Cross-Guard Limited | Manufacturing | 2016 |
| Crossbridge Enterprises Ltd | Professional & scientific | 2026 |
| Crossbridge Supplies Ltd | Wholesale & retail | 2025 |
| Crossbrook Tree Care Ltd | Administrative & support | 2025 |
| Crosse Close Management Company Ltd | Households | 2001 |
| Crossford Estates Ltd | Real estate | 2001 |
| Crossley Hire Limited | Wholesale & retail | 2025 |
| Crovie Ltd | Real estate | 2021 |
| Crown and Country Tour Management Ltd | Administrative & support | 2022 |
| Crown Apartments Management Company Limited | Households | 2004 |
| Crown Building Services (MK) Ltd | Construction | 2011 |
| Crown Canine Hydrotherapy Ltd | Professional & scientific | 2017 |
| Crown Flooring Consultants Ltd | Construction | 2026 |
| Crown Golf Operations Limited | Arts & recreation | 1993 |
| Crown Hub Solutions Ltd | Wholesale & retail | 2024 |
| Crown Motorsports Private Ltd | Wholesale & retail | 2025 |
| Crown Northampton Ltd | Manufacturing | 2016 |
| Crown Savannah Ltd | Wholesale & retail | 2025 |