| CRG Properties Ltd | Real estate | 2016 |
| Crispy Burger Crewe Ltd | Hospitality | 2025 |
| Crispy Waffle Crewe Ltd | Wholesale & retail | 2023 |
| Crispy Wrap Crewe Ltd | Hospitality | 2025 |
| Cristeam Logistics Ltd | Transport & logistics | 2016 |
| Cristines Cleaning Services Ltd | Administrative & support | 2025 |
| Cristisor Logistics Ltd | Transport & logistics | 2020 |
| Cristrans Services Ltd | Transport & logistics | 2017 |
| Cromwell Accounting Ltd | Professional & scientific | 2017 |
| Crossgates Global Trade Ltd | Wholesale & retail | 2026 |
| Crow Face Limited | Arts & recreation | 2013 |
| Crowhurst Gale Estate Agents Limited | Real estate | 2003 |
| Crowhurst Gale Mortgage & Financial Services Limited | Financial services | 2004 |
| Crowhurst Gale Property Lettings Limited | Real estate | 2018 |
| Crown & Acre Ltd | Real estate | 2026 |
| Croxford Electrical Limited | Construction | 2011 |
| CRT International Ltd | Wholesale & retail | 2012 |
| Crystal 88 Limited | Hospitality | 2025 |
| Crystal Club Ltd | Wholesale & retail | 2023 |
| CS Rooms Limited | Hospitality | 2011 |
| Csap Solutions Limited | Information & communication | 2024 |
| CSL Commercial Investments Limited | Real estate | 2021 |
| CSL Fast Food Limited | Wholesale & retail | 2023 |
| CSL Infotech Limited | Information & communication | 2008 |
| CSL Real Estates Limited | Real estate | 2018 |
| Cssk Limited | Real estate | 2020 |
| CT1 Services Ltd | Professional & scientific | 2018 |
| CTA B2B Limited | Education | 2023 |
| CU Barbers Ltd | Other services | 2026 |
| CU Pass Limited | Information & communication | 2021 |
| Cubco Engineering Ltd | Manufacturing | 2023 |
| Cube Accounting Limited | Professional & scientific | 2016 |
| Cube Accounting Property Limited | Real estate | 2025 |
| Culzean Timber Limited | Wholesale & retail | 2024 |
| Cuma Ltd | Transport & logistics | 2019 |
| Cunningshot Dog Training Ltd | Agriculture & fishing | 2019 |
| Cuppa Dunchurch Ltd | Hospitality | 2022 |
| Curley Holdings Limited | Real estate | 2021 |
| Curtains by Design (Warwickshire) Limited | Manufacturing | 2022 |
| Curtis Printworks Ltd | Manufacturing | 2025 |
| Custard Plushie Ltd | Arts & recreation | 2026 |
| Custodial Services Limited | Administrative & support | 2011 |
| Custom Fitted Gold Clubs Ltd | Education | 2025 |
| Custom Group Holdings Ltd | Financial services | 2024 |
| Custom Heat Limited | Administrative & support | 2001 |
| Customer Centricity Ltd | Professional & scientific | 2023 |
| Customry Limited | Information & communication | 2016 |
| CUT Price Carpets (Rugby) Limited | Wholesale & retail | 2024 |
| Cutfast Ltd. | Manufacturing | 2024 |
| Cutlasercut Ltd | Professional & scientific | 2015 |
| CV10CR Ltd | Real estate | 2026 |
| CV1HUMBER Limited | Construction | 2025 |
| CV22 Limited | Hospitality | 2013 |
| CV2LC Ltd | Real estate | 2026 |
| CVS Transport Ltd | Transport & logistics | 2017 |
| CWP Aviation Ltd | Transport & logistics | 2024 |
| CXL Medical Limited | Health & social care | 2020 |
| Cyber Security LAB Ltd | Information & communication | 2023 |
| Cyberpav Ltd | Information & communication | 2023 |
| Cyclepowermeters Limited | Wholesale & retail | 2007 |
| Cygnus Financial Planning Ltd | Financial services | 2021 |
| Cylexis Ltd | Information & communication | 2024 |
| Cyrikk Limited | Wholesale & retail | 2020 |
| Cyrikk OIL Ltd | Wholesale & retail | 2020 |
| D & DJ Holdings Limited | Financial services | 2022 |
| D & N Residential Lettings Limited | Real estate | 2006 |
| D E Transport Warwickshire Limited | Transport & logistics | 2024 |
| D G J Management Ltd | Real estate | 2016 |
| D J Hobley & Sons Ltd | Construction | 2003 |
| D Klos Ltd | Transport & logistics | 2015 |
| D P G Creative Limited | Professional & scientific | 2011 |
| D P M Consignments Ltd | Financial services | 2015 |
| D R Priestley Haulage Limited | Transport & logistics | 2015 |
| D Robson Services Limited | Transport & logistics | 2012 |
| D Stirbu Ltd | Transport & logistics | 2015 |
| D W Auto (Rugby) Limited | Wholesale & retail | 2012 |
| D&A Brothers Logistics Ltd | Transport & logistics | 2026 |
| D&D Executive Car Hire Limited | Administrative & support | 2025 |
| D&D Swan Limited | Construction | 2018 |
| D&G Car Cleaning Limited | Other services | 2015 |
| D&G SP Z.O.O Limited | Transport & logistics | 2021 |
| D&HPROPERTY4U Ltd | Real estate | 2026 |
| D&L Financial Planning Ltd | Financial services | 2025 |
| D&M Properties (Rugby) Limited | Real estate | 2018 |
| D&S Garden Maintenance Ltd | Administrative & support | 2021 |
| D&S Glen Ltd | Real estate | 2021 |
| D&S Quality Ltd | Professional & scientific | 2018 |
| D&S Solanki Properties Ltd | Real estate | 2017 |
| D'Arcy & Hall Limited | Professional & scientific | 2002 |
| D.Bycz Plumbing&Heating Ltd | Construction | 2022 |
| D.I.C. Investments Limited | Construction | 1975 |
| D.Marc Collections Limited | Wholesale & retail | 2020 |
| D.Marc Properties Limited | Real estate | 2021 |
| D.R. Green Consulting Limited | Professional & scientific | 2017 |
| D.S Logistics Services Ltd | Transport & logistics | 2025 |
| D18 Limited | Information & communication | 2022 |
| D2STOCK Ltd | Wholesale & retail | 2020 |
| Dablau Property Management Ltd | Real estate | 2024 |
| DAC Engineering Surveys Ltd | Construction | 2014 |
| Dacia Transport Ltd | Transport & logistics | 2021 |