| Cafe Supreme Ltd | Hospitality | 2012 |
| Caforec Group Ltd | Information & communication | 2021 |
| Cake Craft of Ramsbottom Ltd | Wholesale & retail | 2012 |
| Calade Limited | Professional & scientific | 2014 |
| Cald Ltd | Administrative & support | 2021 |
| Caldwells Fine Foods Limited | Wholesale & retail | 2021 |
| Caledonian Falls Property Holdings Limited | Real estate | 2020 |
| Calisthan Ltd | Health & social care | 2022 |
| Callender Court Limited | Households | 2004 |
| CALLME24/7 Limited | Administrative & support | 2017 |
| Callwith.Ai Limited | Information & communication | 2024 |
| Calmweave Ltd | Wholesale & retail | 2026 |
| Calow Holdco Ltd | Financial services | 2024 |
| Caltech Solutions Limited | Administrative & support | 2024 |
| Cameraworks-Uk Limited | Manufacturing | 2022 |
| Campbell Electronics Ltd. | Information & communication | 2016 |
| Campion Housing Limited | Real estate | 2018 |
| Canady Properties Ltd | Real estate | 2020 |
| Candy Harbour Limited | Administrative & support | 2011 |
| Canridge Care Ltd | Health & social care | 2026 |
| Canridge Holdings Ltd | Financial services | 2025 |
| Canterbury Road Day Nursery Ltd | Health & social care | 2008 |
| Cantwell Property Ltd | Real estate | 2023 |
| Canvas and Soul Ltd | Wholesale & retail | 2025 |
| CAP Ceylon (UK) Limited | Wholesale & retail | 2024 |
| Capital &Trade International Ltd | Financial services | 2016 |
| Capital Catering UK Limited | Construction | 2001 |
| Capp.R Holdings Limited | Financial services | 2026 |
| Capper Sharrock Limited | Administrative & support | 2008 |
| Capricorn Build Northwest Ltd | Construction | 2022 |
| Capricorn Wholesale Ltd | Wholesale & retail | 2025 |
| Caprimind Ltd | Professional & scientific | 2024 |
| Capstone Care Limited | Health & social care | 1997 |
| Car Benefit Car Schemes Limited | Financial services | 2003 |
| Car Benefit Energy Finance Limited | Extraterritorial | 2003 |
| Car Benefit Finance Limited | Financial services | 2003 |
| Car Benefit Holdings Limited | Professional & scientific | 2003 |
| Car Benefit Loans Limited | Financial services | 2003 |
| Car Benefit Schemes LLP | | 2010 |
| Car Benefit Solutions Limited | Professional & scientific | 2002 |
| Car Care Solutions (Bury) Ltd | Wholesale & retail | 2026 |
| Car Deals 4 U Limited | Wholesale & retail | 2012 |
| Car Junction Finance Ltd | Wholesale & retail | 2015 |
| Car Sales Store Ltd | Wholesale & retail | 2021 |
| Carazon Ltd | Wholesale & retail | 2020 |
| Carbon Creative Tech Ltd | Information & communication | 2025 |
| Carbon Intelligent Resources Ltd | Information & communication | 2021 |
| Carbs Digital Ltd | Professional & scientific | 2026 |
| Carbuzz Ltd | Wholesale & retail | 2025 |
| Carcare Solutions (NW) Limited | Wholesale & retail | 2023 |
| Carcargo Ltd | Wholesale & retail | 2023 |
| Card & Party Store (Cash & Carry) Limited | Wholesale & retail | 1997 |
| Cardiac Diagnostics Ltd | Professional & scientific | 2019 |
| Cardiac Electrophysiology Limited | Health & social care | 2011 |
| Cards Galore Online Limited | Wholesale & retail | 2014 |
| Cards Galore Retail Limited | Wholesale & retail | 2014 |
| Cardtalk Ltd | Wholesale & retail | 2018 |
| Care Connect Bury Ltd | Health & social care | 2020 |
| Careers Direct Ltd | Administrative & support | 2016 |
| CARFINANCE123 Ltd | Financial services | 2021 |
| Cargreen Properties Ltd | Real estate | 2017 |
| Caribbean Sunrise Foods Ltd | Hospitality | 2016 |
| Carlo Picasso Decorators Limited | Construction | 2019 |
| Carlos Real Ltd | Professional & scientific | 2018 |
| Carls Coats of Colours Ltd | Construction | 2019 |
| Carlton Nash & Co Limited | Financial services | 2019 |
| Carma Living Limited | Extraterritorial | 2009 |
| Carme Home Ltd | Wholesale & retail | 2020 |
| Carmen Autos Limited | Wholesale & retail | 2005 |
| Carmodzuk Ltd | Wholesale & retail | 2024 |
| Caroma Systems Ltd | Information & communication | 2011 |
| Carravex Limited | Wholesale & retail | 2024 |
| Carrbank House Ltd | Health & social care | 2019 |
| Carrera 2000 (Northwest) Limited | Manufacturing | 2012 |
| Carrera 2000 Bury Limited | Manufacturing | 2022 |
| Carrick Organisation Ltd | Wholesale & retail | 1987 |
| Carrsed (Properties) Limited | Real estate | 1998 |
| Carswells Fire Engineering Limited | Construction | 2024 |
| Cartbuzzer Ltd | Wholesale & retail | 2026 |
| Cartel Supply & Co Ltd | Wholesale & retail | 2025 |
| Cartman & Ross Ltd | Professional & scientific | 2016 |
| Carvanta Ltd | Wholesale & retail | 2026 |
| Casa DE Sparkle Limited | Wholesale & retail | 2025 |
| Casa MIA Properties Limited | Real estate | 2017 |
| Case Electrical Services Ltd | Administrative & support | 2004 |
| Casfera Motors Ltd | Wholesale & retail | 2025 |
| Casked Micropub Ltd | Hospitality | 2018 |
| Caspian Fish Restaurant Ltd | Administrative & support | 2017 |
| Caspian Key Estates Ltd | Real estate | 2024 |
| Castelverde Audio Limited | Arts & recreation | 2025 |
| Castlecroft Management Limited | Households | 1988 |
| Castlecroft Motors Limited | Wholesale & retail | 2008 |
| Castlefield Property Services Limited | Other services | 2025 |
| Castleton Hotel Limited | Administrative & support | 1999 |
| Catal International Limited | Professional & scientific | 1996 |
| Catalyst Coaching & Development Ltd | Professional & scientific | 2010 |
| Cater Global Ltd | Hospitality | 2024 |
| Cater.It Ltd | Hospitality | 2018 |
| Catering Direct Ltd | Hospitality | 2026 |
| Caterpel Limited | Administrative & support | 2016 |