| China Town (UK) Takeaway Ltd | Hospitality | 2026 |
| Chinese Clinic Limited | Health & social care | 2006 |
| Chinnu Ltd | Health & social care | 2018 |
| Chipcodes Ltd | Wholesale & retail | 2023 |
| Chippendale & Fuller Ltd | Administrative & support | 2025 |
| Chippendale Housing Limited | Real estate | 2026 |
| Chippendale Property Holdings Limited | Financial services | 2022 |
| Chippendale Timber Products Limited | Wholesale & retail | 2019 |
| Chipping Community Land Trust | Construction | 2013 |
| Chipping Cricket Club CIC | Arts & recreation | 2013 |
| Chipping Show Limited | Administrative & support | 2008 |
| Chiropractic Associates (Preston) Limited | Health & social care | 2003 |
| Chiswick Contracts Ltd | Construction | 2022 |
| Chittethu Limited | Health & social care | 2022 |
| Chiu Kwan by MR LAM Limited | Hospitality | 2026 |
| CHL Consultancy Limited | Administrative & support | 2025 |
| Chloe Foster Limited | Professional & scientific | 2024 |
| Chloe Ward Holistic Ltd | Other services | 2019 |
| Chloemlproperty Ltd | Households | 2024 |
| Chly Ltd | Transport & logistics | 2020 |
| CHM Legal Services Ltd | Professional & scientific | 2024 |
| CHM Media Ltd | Information & communication | 2023 |
| Chocolat Madagascar Ltd | Manufacturing | 2019 |
| Chocotime Ltd | Wholesale & retail | 2019 |
| Choice Events International Limited | Professional & scientific | 2019 |
| Choice SA Ltd | Other services | 2014 |
| Choices Through Education Limited | Education | 2020 |
| Chorley Driving School Ltd | Education | 2025 |
| Chorley Estates Limited | Real estate | 1932 |
| Chorley Hand Car Wash Limited | Other services | 2019 |
| Chorley Rooftech Limited | Construction | 2018 |
| Chosen Link Limited | Health & social care | 2015 |
| Choudhary Commerce Ltd | Real estate | 2025 |
| Choudry and Daughters Investments Limited | Real estate | 2018 |
| Choudry Associates Limited | Health & social care | 2011 |
| Choudry Holdings Limited | Financial services | 2018 |
| Chris Allen (Garages) Limited | Wholesale & retail | 1989 |
| Chris Allen (Holdings) Limited | Professional & scientific | 2003 |
| Chris Days Mortgages Ltd | Financial services | 2019 |
| Chris Hindle Electrical Ltd | Construction | 2019 |
| Chris Lingard Heating and Plumbing Ltd | Construction | 2017 |
| Chris Miller (Builders) Ltd | Construction | 2007 |
| Chris Murray Property Development Limited | Construction | 2025 |
| Chris O'Connor and Associates Limited | Financial services | 2001 |
| Chris Parkinson Building Contractor Limited | Construction | 2016 |
| Chris Reynolds & Associates Limited | Health & social care | 2010 |
| Chris Wilson Consulting Ltd | Professional & scientific | 2015 |
| Chrisemma Group Ltd | Real estate | 2025 |
| Christ the Way International Tabernacle Ltd | Other services | 2023 |
| Christian Davis Developments Limited | Construction | 2025 |
| Christmas Concepts Limited | Wholesale & retail | 1994 |
| Christopher Pattman Haulage Limited | Transport & logistics | 2011 |
| Chrysalis Body Sculpting Ltd | Health & social care | 2013 |
| Chrysalis Psychotherapy Limited | Health & social care | 2013 |
| Chrystal Clear 2010 Ltd | Administrative & support | 2019 |
| CHT (Northwest) Limited | Other services | 2017 |
| Chuam Ltd | Health & social care | 2019 |
| Chukka Limited | Information & communication | 2022 |
| Chumley Films Limited | Information & communication | 2025 |
| Chunkydog Ltd | Wholesale & retail | 2025 |
| Church Road & Mews Management Limited | Households | 2017 |
| Church Street Darwen Limited | Construction | 2022 |
| Church Street Takeaway Ltd | Hospitality | 2018 |
| Church View Place Management Company Limited | Real estate | 2015 |
| Churchtown Restaurants Limited | Real estate | 1998 |
| Churton Place Management Company Limited | Real estate | 2004 |
| Churton Place Properties (a) Limited | Real estate | 2003 |
| Chutney Port Ltd | Hospitality | 2025 |
| CI CI Nails & Spa 23 Ltd | Other services | 2025 |
| CI Property Holdings Limited | Real estate | 2014 |
| Ciao Italia Limited | Administrative & support | 2014 |
| Ciaran's Automotive Repair Services Ltd | Wholesale & retail | 2026 |
| CIC Photographic Limited | Extraterritorial | 2018 |
| Cicatrixdg Ltd | Health & social care | 2024 |
| Ciel Press Ltd | Information & communication | 2025 |
| Cigiri Ltd | Real estate | 2022 |
| Cigs Mart Limited | Wholesale & retail | 2024 |
| Cinnamon Preston Limited | Hospitality | 2021 |
| Circa 62 Ltd | Wholesale & retail | 2018 |
| CIRCA2021 Ltd | Professional & scientific | 2021 |
| Circle 2014 Limited | Real estate | 2010 |
| Circuit Electrical Installations Ltd | Construction | 2017 |
| Circuitra Ltd | Construction | 2024 |
| Cirqon Electrical Limited | Construction | 2026 |
| Cirrus (GB) Limited | Manufacturing | 2002 |
| Cirrus International UK Ltd | Wholesale & retail | 2020 |
| Cirrus Media Sales Limited | Professional & scientific | 2010 |
| Cisan Limited | Other services | 2019 |
| Cisco NW Ltd | Wholesale & retail | 2023 |
| Cisiumiq Ltd | Information & communication | 2025 |
| Citadel Connect Technology Ltd | Information & communication | 2020 |
| Citadel Technology Ltd | Information & communication | 2005 |
| Citizens Jury Ltd | Professional & scientific | 2021 |
| Citrine Healthcare Limited | Administrative & support | 2022 |
| City Bridge Management Ltd | Households | 2019 |
| City Build Holdings Limited | Financial services | 2018 |
| City Church Preston | Other services | 2013 |
| City Community Initiatives Limited | Education | 2025 |
| City Eats Ltd | Hospitality | 2021 |
| City Investment & Construction Ltd | Real estate | 2020 |