| Crownline Cars Ltd | Transport & logistics | 2025 |
| Crownline Transport Solutions Ltd | Transport & logistics | 2025 |
| Crownluxe Beauty Home Limited | Other services | 2025 |
| Crownnikky Afro Caribbean Food Store Ltd | Wholesale & retail | 2025 |
| Crownpoint Inventory Limited | Wholesale & retail | 2026 |
| Crownpoint Medical Supplies Limited | Wholesale & retail | 2025 |
| Crownsgate Limited | Other services | 2018 |
| Crowntrips Ltd | Administrative & support | 2026 |
| Crownview Properties Limited | Hospitality | 2026 |
| Crownway for Trading Limited | Extraterritorial | 2026 |
| Crowshaw Shared Services Limited | Administrative & support | 2024 |
| Croydon Building Developments Limited | Real estate | 2019 |
| Croydon Skin and Aesthetic Clinic Ltd | Health & social care | 2025 |
| Croydon Translation Services Limited | Administrative & support | 2012 |
| Crozier Drinks Ltd | Wholesale & retail | 2020 |
| CRP Draughting Limited | Professional & scientific | 1990 |
| CRP Estates Ltd | Households | 2019 |
| CRP Studios Limited | Information & communication | 2020 |
| CRP Training Ltd | Administrative & support | 2017 |
| CRS Display Ltd | Manufacturing | 2010 |
| CRS Property Holdings Ltd | Real estate | 2018 |
| CRU Estates Ltd | Real estate | 2022 |
| Crucial Dyno Ltd | Wholesale & retail | 2023 |
| Crucible Metals Ltd | Wholesale & retail | 2018 |
| Crud.It Software Development Services Ltd | Information & communication | 2025 |
| Cruden International Ltd | Wholesale & retail | 2019 |
| Crudualb Ltd | Other services | 2025 |
| Cruise and Pass Driving School Ltd | Education | 2024 |
| Cruise Club UK Limited | Transport & logistics | 1997 |
| Cruise Hire Limited | Administrative & support | 2024 |
| Cruise Services International Limited | Wholesale & retail | 2005 |
| Crumpet Labs Ltd | Information & communication | 2024 |
| Crumpsall 24HOUR Callout Ltd | Wholesale & retail | 2025 |
| Crumpsall Alloy Wheels Ltd | Wholesale & retail | 2024 |
| Crumpsall Chippy Ltd | Hospitality | 2024 |
| Crumpsall Coffee Shop Ltd | Hospitality | 2024 |
| Crumpsall Estates Limited | Professional & scientific | 2015 |
| Crumpsall Plumbers and Builders Merchants Limited | Wholesale & retail | 2002 |
| Crumpsall Services Ltd | Administrative & support | 2024 |
| Crumpsall Shawarma Ltd | Hospitality | 2024 |
| Crumpsall Tracking Services Ltd | Transport & logistics | 2025 |
| Crumpsall Tyres Ltd | Wholesale & retail | 2020 |
| Crumpworks Ltd | Professional & scientific | 2021 |
| Crunch Manchester Ltd | Hospitality | 2022 |
| Cruncheese Limited | Hospitality | 2024 |
| Crusade Community Limited | Administrative & support | 2023 |
| Crusade Technologies UK PVT Ltd | Information & communication | 2013 |
| Crusader Risk Management Ltd | Professional & scientific | 2024 |
| Cruseco Ltd | Professional & scientific | 2021 |
| Crush Burger Ltd | Hospitality | 2026 |
| Crush Trading UK Limited | Wholesale & retail | 2022 |
| Crusham Enterprises Ltd | Extraterritorial | 2014 |
| Crushballz Ltd | Wholesale & retail | 2025 |
| Crux Capital Limited | Financial services | 2021 |
| Cruxx Technologies Limited | Information & communication | 2020 |
| Cruze Pharma Medical Company Ltd | Manufacturing | 2025 |
| CRV Manchester Limited | Wholesale & retail | 2026 |
| Crynux Limited | Information & communication | 2025 |
| Cryonext Ltd | Wholesale & retail | 2026 |
| Cryoray Limited | Information & communication | 2011 |
| Cryowield Ltd | Information & communication | 2017 |
| Crypfu Ltd | Professional & scientific | 2025 |
| Cryptel Ltd | Information & communication | 2025 |
| Crypto Thought Limited | Financial services | 2021 |
| Crypto Travels Ltd | Wholesale & retail | 2024 |
| Crysmat Limited | Wholesale & retail | 2014 |
| Crysremovals Limited | Transport & logistics | 2025 |
| Crystal Assassin Limited | Construction | 2015 |
| Crystal Avalanche Care Foundation | Other services | 2017 |
| Crystal Ball Limited | Information & communication | 2008 |
| Crystal Bloom Limited | Administrative & support | 2022 |
| Crystal Brook Realty Management Ltd | Extraterritorial | 2026 |
| Crystal Business Centres Limited | Real estate | 2014 |
| Crystal Car Care Ltd | Wholesale & retail | 2025 |
| Crystal Cleaning (Atherton) Limited | Other services | 2012 |
| Crystal Cleaning Products Ltd | Wholesale & retail | 2023 |
| Crystal Clear Consulting Ltd | Professional & scientific | 2024 |
| Crystal Clear Insight Limited | Professional & scientific | 2012 |
| Crystal Collins Limited | Wholesale & retail | 2021 |
| Crystal Cortex Limited | Professional & scientific | 2024 |
| Crystal Documents Ltd | Professional & scientific | 2012 |
| Crystal Electrical Wholesale Limited | Wholesale & retail | 2023 |
| Crystal Eloquence Edge CIC | Education | 2025 |
| Crystal Financial (UK) Ltd | Administrative & support | 2012 |
| Crystal GEM Jewellers Ltd | Wholesale & retail | 2025 |
| Crystal Homes 1 Limited | Real estate | 2013 |
| Crystal Homes 2 Limited | Construction | 2014 |
| Crystal Homes 3 Limited | Construction | 2014 |
| Crystal Hope Foundation | Education | 2011 |
| Crystal House (Whalley Range) Management Company Limited | Households | 2001 |
| Crystal House Ltd | Administrative & support | 2025 |
| Crystal Invest Ltd. | Wholesale & retail | 2021 |
| Crystal Legal Consulting Limited | Professional & scientific | 2024 |
| Crystal Nails & Beauty Limited | Other services | 2017 |
| Crystal Plant Hire Limited | Administrative & support | 2016 |
| Crystal Point Support Team Ltd | Extraterritorial | 2026 |
| Crystal Property & Land Limited | Real estate | 2006 |
| Crystal Secure FM Ltd | Administrative & support | 2025 |
| Crystal Security Solutions Limited | Administrative & support | 2012 |
| Crystal Services MCR Limited | Wholesale & retail | 2020 |