| Chai & Desserts Ltd | Hospitality | 2023 |
| Chai Green Sheff Limited | Wholesale & retail | 2025 |
| Chai Rooms Ltd | Hospitality | 2020 |
| Chain Direct 2U Limited | Extraterritorial | 2018 |
| Chainvera AI Limited | Wholesale & retail | 2025 |
| Chainverge AI Limited | Wholesale & retail | 2025 |
| Chalk Press Agency Ltd. | Professional & scientific | 2014 |
| Chalkers Pool & Snooker Club Limited | Hospitality | 2019 |
| Challand Medical Limited | Health & social care | 2014 |
| Challenger Group 6 Ltd | Real estate | 2026 |
| Challenger Joinery & Construction Limited | Construction | 2010 |
| Challiner Properties Limited | Real estate | 2020 |
| Chaloner Limited | Information & communication | 2025 |
| Chalton Property Limited | Real estate | 2017 |
| Chamarel Middlewood Ltd | Hospitality | 2026 |
| Chamberlain Care Company Ltd | Health & social care | 2025 |
| Chambers Engineering Site Services Limited | Professional & scientific | 1983 |
| Chambers Plumbing & Heating Ltd. | Wholesale & retail | 2006 |
| Chambers Ventilation Services Limited | Construction | 2025 |
| Chambers Whitaker Catering Limited | Administrative & support | 2012 |
| Chameleon Landscaping Ltd | Administrative & support | 2015 |
| Chamo Enterprises Ltd | Wholesale & retail | 2023 |
| Champion & Emmett Ltd | Wholesale & retail | 2026 |
| Champion Barbers S5 Ltd | Other services | 2024 |
| Champion Hire Holdings Limited | Financial services | 2025 |
| Champion Hire Limited | Administrative & support | 1969 |
| Champion Riverside Ltd | Wholesale & retail | 2024 |
| Champions Adult Support Services Ltd | Health & social care | 2025 |
| Champions Childrens Homes(Aspire) Ltd | Health & social care | 2025 |
| Champions Childrens Homes(Smiles) Ltd | Health & social care | 2024 |
| Champions Childrens Homes(Stars) Ltd | Health & social care | 2025 |
| Champions Undisputed Holdings Ltd | Health & social care | 2024 |
| Chan Estates Ltd | Real estate | 2025 |
| Chanan Ltd | Wholesale & retail | 2017 |
| Chanasan Ltd | Hospitality | 2018 |
| Chance & Charm Trading Limited | Wholesale & retail | 2025 |
| Chancepride Limited | Wholesale & retail | 2000 |
| Chancery Communications and Language Services Ltd | Professional & scientific | 2021 |
| Chancery Recovery Limited | Other services | 2022 |
| Chancery Rentals Ltd | Households | 2022 |
| Change Hair Studio Ltd | Other services | 2025 |
| Change Salon Ltd | Other services | 2022 |
| Changeforce Services Limited | Professional & scientific | 2020 |
| Changing Faces | Health & social care | 1992 |
| Changing Hands C.I.C. | Administrative & support | 2020 |
| Changing OUR Lives Ltd | Health & social care | 2002 |
| Changing Systems Limited | Information & communication | 2001 |
| Changu Limited | Health & social care | 2014 |
| Channer Systems Ltd | Information & communication | 2026 |
| Chantrey Press Limited | Hospitality | 2021 |
| Chantreyland Building Holding Ltd | Education | 2018 |
| Chantreyland Childcare Group Ltd | Health & social care | 2017 |
| Chantreyland Children's Nursery Limited | Education | 2010 |
| Chantry Arms Ltd | Hospitality | 2020 |
| Chaos Management (UK) Limited | Arts & recreation | 2008 |
| Chap Access Ltd | Other services | 2017 |
| Chap Community Market Community Interest Company | Wholesale & retail | 2024 |
| Chapel a Limited | Other services | 2012 |
| Chapel Furniture Agencies Limited | Wholesale & retail | 2004 |
| Chapel Hill Homes (Blisworth) Limited | Construction | 2026 |
| Chapel Holidays Ltd | Real estate | 2019 |
| Chapel Lettings Limited | Real estate | 2024 |
| Chapel Street (Penzance) Management Company Limited | Hospitality | 2007 |
| Chapeltan Ltd | Other services | 2025 |
| Chapeltown 1 Market Ltd | Wholesale & retail | 2026 |
| Chapeltown Auto Centre Limited | Wholesale & retail | 2023 |
| Chapeltown Chiropractic Clinic Ltd | Health & social care | 2008 |
| Chapeltown Foot Clinic Limited | Health & social care | 2012 |
| Chapeltown GAS Services Limited | Construction | 2002 |
| Chapeltown Mealhouse Ltd | Hospitality | 2025 |
| Chapeltown Minimarket Limited | Wholesale & retail | 2025 |
| Chapletown Kebab House Limited | Hospitality | 2020 |
| Chapman & Carter Limited | Administrative & support | 2008 |
| Chapman & Carter Nominees Ltd | Administrative & support | 2020 |
| Chapman Brack (Contractors) Limited | Manufacturing | 1993 |
| Chapman Brack Holdings Limited | Manufacturing | 2020 |
| Chapmans Agricultural Holdings Limited | Professional & scientific | 2023 |
| Chapmans Agricultural Limited | Manufacturing | 1956 |
| Chaps Grill S35 Ltd | Hospitality | 2024 |
| Chaps IT Recycling Limited | Information & communication | 2021 |
| Chaps Plumbing and Heating Services Ltd | Construction | 2019 |
| Chapter 3 Digital Ltd | Professional & scientific | 2021 |
| Chapter One GWL Limited | Health & social care | 2025 |
| Chapter Three Studio Space Ltd | Real estate | 2025 |
| Charav Limited | Real estate | 2005 |
| Charcoal City Ltd | Hospitality | 2025 |
| Charcoal Direct Limited | Professional & scientific | 2003 |
| Charcoal Zone Limited | Wholesale & retail | 2025 |
| Chariot Transport Limited | Transport & logistics | 2018 |
| Charis Family Ltd | Hospitality | 2023 |
| Charisma Blinds (South Yorkshire) Limited | Manufacturing | 2011 |
| Charlene Janet Hegarty Ltd | Extraterritorial | 2022 |
| Charlene Janet Ramsey Ltd | Extraterritorial | 2022 |
| Charles Black Associates Limited | Professional & scientific | 2006 |
| Charles Butcher and Company Limited | Financial services | 1900 |
| Charles Butler Limited | Manufacturing | 2016 |
| Charles Court Opera and Music Theatre Ltd | Arts & recreation | 2014 |
| Charles Day (Steels) Holdings Limited | Financial services | 2020 |
| Charles James Trustees Limited | Professional & scientific | 2005 |
| Charles Painting Services (UK) Limited | Construction | 2006 |