| Cosmos GFX Ltd | Information & communication | 2015 |
| Cosmos News Agent Ltd | Wholesale & retail | 2024 |
| Cosmos Shipping Limited | Extraterritorial | 2023 |
| Coso Electrical Ltd | Construction | 2021 |
| Cost Target Ltd | Wholesale & retail | 2019 |
| Cosy Camera Club Limited | Wholesale & retail | 2025 |
| Cotswold Roller Hire Limited | Construction | 1965 |
| Cotterz Access Ltd | Other services | 2020 |
| Counsell Court Limited | Households | 1999 |
| Country Hamper Blackpool Ltd | Hospitality | 2025 |
| Countryside Kids Limited | Wholesale & retail | 2010 |
| Courtfields (Blackpool) Property Management Limited | Households | 1998 |
| Courtyard Caffe Ltd | Hospitality | 2022 |
| Coutts Welding Services Limited | Construction | 2018 |
| Covered in Colour Ltd | Wholesale & retail | 2024 |
| Cowan Head Estate Company Limited | Households | 1991 |
| Cowboy & Co. Blackpool Ltd | Hospitality | 2023 |
| Cowboys CRY TOO Ltd | Wholesale & retail | 2025 |
| Cowco Products Ltd | Wholesale & retail | 2018 |
| Cowleys Welding Limited | Manufacturing | 2016 |
| Coyle Building & Electrical Engineering Services Limited | Administrative & support | 2012 |
| Coyote Car Cleaning Company Ltd | Professional & scientific | 2007 |
| Cozumel Estates Limited | Construction | 2023 |
| Cozy Holdings Limited | Financial services | 2026 |
| Cozy Investments Limited | Financial services | 2026 |
| Cozy Kennels & Cattery Limited | Other services | 2011 |
| CP Blackpool Ltd | Real estate | 2021 |
| CP Building Plastics Ltd | Construction | 2017 |
| CPC Roofing Specialist Limited | Construction | 2026 |
| CPJ Consultancy Solutions Ltd | Information & communication | 2019 |
| CPJ Contracting Limited | Professional & scientific | 2016 |
| CPL Supplies Ltd | Wholesale & retail | 2025 |
| Cqura Holdings Ltd | Financial services | 2026 |
| Cqura Ltd | Professional & scientific | 2024 |
| CR Electrical Blackpool Ltd | Construction | 2023 |
| CR Energy Solutions Limited | Administrative & support | 2017 |
| Crabtree Media Ltd | Professional & scientific | 2015 |
| Crafton Circle Ltd | Wholesale & retail | 2025 |
| Craig Johnson Heating Limited | Construction | 2020 |
| Craig Shields Design Limited | Professional & scientific | 2018 |
| Craig Stables Limited | Financial services | 2018 |
| Crane Electrical Technicians Ltd | Construction | 2024 |
| Crank IT UP Ltd | Information & communication | 2015 |
| Cranworth Melrose Ltd | Wholesale & retail | 2025 |
| Crawford Contracts Group Ltd | Wholesale & retail | 2025 |
| CREA8IVE Solution Limited | Professional & scientific | 2025 |
| Create 201 Ltd | Information & communication | 2019 |
| Create and Make Ltd | Manufacturing | 2023 |
| Create Developments (Armadale) Limited | Construction | 2024 |
| Create Developments (Blackpool) Limited | Construction | 2015 |
| Create Developments (Bonds) Ltd | Construction | 2024 |
| Create Developments (Elswick) Ltd | Construction | 2020 |
| Create Developments (Inskip) Limited | Construction | 2015 |
| Create Developments (Land & Property) Limited | Construction | 2013 |
| Create Developments (Longridge) Ltd | Construction | 2019 |
| Create Developments (Longton) Limited | Construction | 2018 |
| Create Developments (Pilling) Limited | Construction | 2018 |
| Create Developments (Preston) Ltd | Construction | 2020 |
| Create Developments (ST Petersfields) Limited | Construction | 2017 |
| Create Homes (Land & Property) Limited | Construction | 2015 |
| Creatif CIC | Professional & scientific | 2023 |
| Creating Systems Ltd | Information & communication | 2011 |
| Creation Sports Management Ltd | Administrative & support | 2015 |
| Creative Cakes and Grills Ltd | Manufacturing | 2024 |
| Creative Construction Northwest Ltd | Construction | 2025 |
| Creative Dimensions Ltd | Manufacturing | 2025 |
| Creative Land Designers Limited | Construction | 2018 |
| Creative Living Home Improvements Ltd | Administrative & support | 2015 |
| Creative Nutrition Ltd | Manufacturing | 2002 |
| Creative Portraits (North West) Ltd | Professional & scientific | 2012 |
| Creative Star Media Limited | Information & communication | 2015 |
| Creative Technical Installations Limited | Arts & recreation | 2017 |
| Creative Vendetta Ltd | Information & communication | 2013 |
| Creative Windows Limited | Manufacturing | 1999 |
| Creative Wrought Iron Limited | Manufacturing | 2002 |
| Creativetube Ltd | Information & communication | 2024 |
| Creatv Broadcast Limited | Information & communication | 2003 |
| Creatv Limited | Information & communication | 2005 |
| Cremation Support Ltd | Extraterritorial | 2023 |
| Creo Advisory Services Limited | Professional & scientific | 2014 |
| Crescent Property Maintenance Ltd | Construction | 2026 |
| Crestmile Limited | Energy | 2017 |
| CRJ Acquisitions Ltd | Hospitality | 2026 |
| Croatia Carp Trips Ltd | Administrative & support | 2025 |
| Croft (Fleetwood) Residents Company Limited(The) | Households | 1983 |
| Croft Paving Ltd | Construction | 2017 |
| Crohnos Games Ltd | Information & communication | 2026 |
| Cromwell Walks Ltd | Wholesale & retail | 2025 |
| Cronology Software Limited | Information & communication | 2020 |
| Cross Street Centre (Blackpool) Ltd | Other services | 2015 |
| Crossbar Technology Limited | Information & communication | 2017 |
| Crossfit Alhaurin Holidays Ltd | Health & social care | 2023 |
| Crossfit Blackpool Ltd | Arts & recreation | 2023 |
| Crossfit Coin Limited | Information & communication | 2025 |
| Crossways (Blackpool) Ltd | Hospitality | 2011 |
| Crow Craft Ltd | Administrative & support | 2025 |
| Crown & Capital Limited | Other services | 2025 |
| Crown Scaffolders Limited | Construction | 2018 |
| CRS Groups Holding Limited | Wholesale & retail | 2025 |
| CRS Midlands HQ Ltd | Wholesale & retail | 2025 |