| Charmas Security Solutions Limited | Information & communication | 2010 |
| Charoly Limited | Information & communication | 2023 |
| Charterhouse Financial Planning Limited | Financial services | 2003 |
| Charterhouse Pictures Ltd | Information & communication | 2015 |
| Chartley Coffee Limited | Manufacturing | 2015 |
| Chase AI Skills & Strategy Ltd | Information & communication | 2025 |
| Chase Air Compressors Limited | Manufacturing | 2018 |
| Chase Aqua Rural Enterprise C.I.C. | Education | 2011 |
| Chase Business Development Ltd | Information & communication | 2025 |
| Chase Drains 110 Limited | Water & waste | 2021 |
| Chase Financial Planning Ltd | Financial services | 2017 |
| Chase Installations Limited | Energy | 2002 |
| Chase Recovery Community Interest Company | Professional & scientific | 2022 |
| Chase Surgical Limited | Education | 2019 |
| Chase View Farm Ltd. | Agriculture & fishing | 2012 |
| Chaseoaks Storage Ltd | Transport & logistics | 2008 |
| Chasepadel Ltd | Arts & recreation | 2025 |
| Chatfields Cars Limited | Wholesale & retail | 2006 |
| Chatsworth Mews Residents Association Limited | Professional & scientific | 1999 |
| Cheadle Business Services Limited | Administrative & support | 1999 |
| Cheadle's Garage(Penkridge),Limited | Real estate | 1963 |
| Cheakamus Limited | Information & communication | 2020 |
| Chebsey Parish Hall Limited | Health & social care | 2012 |
| Chef Babak Ltd | Hospitality | 2025 |
| Chef Porky Ltd | Manufacturing | 2025 |
| Chelsea & Knights Ltd | Hospitality | 2017 |
| Chelsea Broom Limited | Real estate | 2021 |
| Chelsea Couriers Ltd | Transport & logistics | 2025 |
| Chemical Lane Engineering Ltd | Manufacturing | 2026 |
| Chen Tingzuo International Foundation Immune Science Union | Extraterritorial | 2022 |
| Chess Property Limited | Construction | 2014 |
| Chesterbelle Ltd | Professional & scientific | 2025 |
| Chetwynd Court Management Limited | Households | 2021 |
| Chevron Motorsport Limited | Wholesale & retail | 2021 |
| Chevron of Stafford Limited | Wholesale & retail | 2021 |
| Chevron Stafford Limited | Wholesale & retail | 2021 |
| CHI Wing Group Ltd | Manufacturing | 2024 |
| Child Behaviour Direct Ltd | Education | 2024 |
| Chilex Ltd | Wholesale & retail | 2014 |
| Chilli Pepper Development Limited | Professional & scientific | 2015 |
| China an Construction Limited | Extraterritorial | 2016 |
| China Cross-Border E-Commerce Limited | Wholesale & retail | 2024 |
| China International Traditional Chinese Medicine Industries Union | Extraterritorial | 2022 |
| Chitose Network Ltd | Wholesale & retail | 2021 |
| Chofone International Limited | Manufacturing | 2025 |
| Choisi Group Ltd | Information & communication | 2026 |
| Chokbox Limited | Wholesale & retail | 2024 |
| Choose Your Care Limited | Extraterritorial | 2013 |
| Chris Boulton Building & Plastering Ltd | Construction | 2014 |
| Chris Clark Lawyers Limited | Professional & scientific | 2012 |
| Chris J Hayes Limited | Administrative & support | 2008 |
| Chris Seabridge & Associates Limited | Professional & scientific | 2011 |
| Chris Watt Music Services Limited | Information & communication | 2016 |
| Christadelphian Hall & Buildings Society,Birmingham(The) | Other services | 1911 |
| Christoph Limited | Wholesale & retail | 2025 |
| Christopher Batey Limited | Construction | 2000 |
| Chroma Coatings Limited | Wholesale & retail | 2012 |
| Chroma West Ltd | Information & communication | 2025 |
| CHS Associates Limited | Professional & scientific | 2026 |
| Chuck Holdings Limited | Real estate | 2026 |
| Chunky Jacks Limited | Manufacturing | 2023 |
| Chunmei Ltd | Wholesale & retail | 2022 |
| CIG Consulting Ltd | Professional & scientific | 2021 |
| Ciilock Engineering Ltd | Wholesale & retail | 2013 |
| Ciliang International Limited | Manufacturing | 2023 |
| Cimc Special Vehicles Export Co., Ltd | Wholesale & retail | 2025 |
| Cinderella's of Nantwich Limited | Wholesale & retail | 2009 |
| Circa Packaging Ltd | Administrative & support | 2024 |
| Circuit Healthcare Ltd | Administrative & support | 2020 |
| CIS International Limited | Wholesale & retail | 2024 |
| Cittrex Technologies Limited | Information & communication | 2013 |
| City Decor Ltd | Construction | 2022 |
| Cityscape Suites Ltd | Real estate | 2024 |
| CJ and FR Properties Limited | Real estate | 2019 |
| CJ Business Limited | Construction | 2024 |
| Cjhp Management Ltd | Real estate | 2011 |
| CJS Imaging Ltd | Information & communication | 2011 |
| CJT Enterprises Ltd | Arts & recreation | 2024 |
| CJV Holdings Limited | Financial services | 2026 |
| Claire O'Reilly Holdings Ltd. | Wholesale & retail | 2021 |
| Clan Ceramics Consultancy Limited | Administrative & support | 2006 |
| Clarity & Success Software Limited | Information & communication | 2003 |
| Clarke & Wise Property Limited | Real estate | 2021 |
| Clarke's Lifting Services Ltd | Construction | 2018 |
| Clartec Ltd | Information & communication | 2012 |
| Clasim Food Ltd | Hospitality | 2023 |
| Classeq Limited | Manufacturing | 1980 |
| Classic Racing Cars (Engineering) Ltd | Wholesale & retail | 2013 |
| Clay Developments Limited | Real estate | 2008 |
| Clayton Car Contracts Limited | Wholesale & retail | 1997 |
| CLB Talent Solutions Limited | Administrative & support | 2023 |
| Cleanup Free Cleaner Limited | Information & communication | 2025 |
| Clear Box Premises Limited | Hospitality | 2017 |
| Clear Care Solutions (AUS) Ltd | Information & communication | 2025 |
| Clear Care Solutions Holdings Limited | Financial services | 2022 |
| Clear Care Solutions Limited | Information & communication | 2003 |
| Clear Care Solutions Topco Limited | Financial services | 2025 |
| CLEARDAY126 Ltd | Wholesale & retail | 2022 |
| Clearly Accounted Limited | Extraterritorial | 2024 |
| Clena Holdings Ltd | Administrative & support | 2018 |