| Craven Slater 2024 Limited | Professional & scientific | 2024 |
| Cravies Ltd | Hospitality | 2025 |
| Create Apartments Ltd | Real estate | 2021 |
| Createch Group Ltd | Financial services | 2019 |
| Createch Joinery Ltd | Construction | 2019 |
| Createch Kiosks Ltd | Construction | 2019 |
| Createch Props Ltd | Arts & recreation | 2018 |
| Creating Cultures Limited | Information & communication | 2021 |
| Creating Spaces Group Ltd | Construction | 2019 |
| Creative Crystals Ltd | Wholesale & retail | 2022 |
| Creative Flex Limited | Information & communication | 2023 |
| Creative International Adventures (U.K) Limited | Wholesale & retail | 2008 |
| Creative Melia Limited | Arts & recreation | 2024 |
| Credit and Surety Brokers Limited | Financial services | 2026 |
| Credit Resource Solutions Limited | Professional & scientific | 2003 |
| Crescent Nationwide Multi-Trade Ltd | Construction | 2025 |
| Cricketers Fold (Exley) Management Company Limited | Households | 2016 |
| Crispin Alessi Limited | Professional & scientific | 2020 |
| Cristache Logistics Ltd | Transport & logistics | 2019 |
| Croft I.T Ltd | Wholesale & retail | 2019 |
| Croft Mill Management Company Limited | Other services | 2003 |
| Croft Mill Marketing Limited | Information & communication | 2024 |
| Croft MYL Limited | Real estate | 2016 |
| Croftmount Luxury Pet Resort Ltd | Hospitality | 2021 |
| Cromwell Industries LLP | | 2020 |
| Cromwell Law Ltd | Professional & scientific | 2019 |
| Cromwells Mount Ltd | Hospitality | 2022 |
| Cronite Cast Ltd | Wholesale & retail | 2025 |
| Cross IT Solutions Limited | Information & communication | 2009 |
| Crosshill Construction Ltd | Construction | 2024 |
| Crosslee Holdings Limited | Real estate | 1990 |
| Crosslee Properties Limited | Real estate | 2020 |
| Crossley & Craven (Halifax) Limited | Wholesale & retail | 1986 |
| Crossley Property Management Limited | Real estate | 2008 |
| Crossley Ridge Investments Ltd | Real estate | 2017 |
| Crown Crown Roofing Ltd | Construction | 2024 |
| Crown DIY Ltd | Wholesale & retail | 2012 |
| Crown Integrated Services Ltd | Professional & scientific | 2022 |
| Crown Roofing HX Ltd | Construction | 2019 |
| Crowntrade Halifax Ltd | Hospitality | 2026 |
| CRS Holding Group Ltd | Administrative & support | 2026 |
| CRS Staffing UK Ltd | Hospitality | 2017 |
| Crucible Retreats Limited | Hospitality | 2020 |
| Cruise Private Hire Ltd | Transport & logistics | 2019 |
| Crvn Imports Limited | Wholesale & retail | 2025 |
| Crystal Sports and Prestige Limited | Wholesale & retail | 2021 |
| Crystalpath Technologies Ltd | Wholesale & retail | 2025 |
| Crystalpeak Ventures Ltd | Wholesale & retail | 2025 |
| CS Barbering Ltd | Wholesale & retail | 2026 |
| CS Hair Stylist Ltd | Other services | 2018 |
| CS Heating & GAS Ltd | Construction | 2021 |
| CS Maintenance Ltd | Construction | 2011 |
| CS PVC Cladding Ltd | Wholesale & retail | 2023 |
| CS PVC Panels Ltd | Wholesale & retail | 2020 |
| CSD Holdings Ltd | Financial services | 2016 |
| CSG GAS Services Limited | Construction | 2020 |
| CSG Housing Ltd | Households | 2019 |
| CSH Bathrooms Limited | Wholesale & retail | 2020 |
| Csocks Ltd | Health & social care | 2025 |
| CSR Distribution Limited | Wholesale & retail | 2015 |
| Ctherm Limited | Other services | 2017 |
| CTN Installations Ltd | Construction | 2025 |
| Cube Packaging Solutions Ltd | Manufacturing | 2024 |
| Cubik Products UK Limited | Wholesale & retail | 2010 |
| Cullingworth Commercials Limited | Transport & logistics | 2019 |
| Culture Club Clothing UK Ltd | Wholesale & retail | 2024 |
| Cumbric Limited | Wholesale & retail | 2014 |
| Cuoco Italiano Ltd | Hospitality | 2024 |
| Curated Learning Limited | Education | 2019 |
| Curious Case Files Limited | Information & communication | 2025 |
| Curious Motion CIC | Arts & recreation | 2019 |
| Curo Care Valley View Ltd | Health & social care | 2014 |
| Current Innovation Installations Ltd | Construction | 2025 |
| Curry Choice Ltd | Hospitality | 2025 |
| Curtis and Beckett Limited | Wholesale & retail | 2024 |
| Custom Built Exhibitions Limited | Manufacturing | 2013 |
| Custom Designs UK Limited | Manufacturing | 2014 |
| Custom Laser Systems Limited | Professional & scientific | 2019 |
| Custom Sports Vans Limited | Manufacturing | 2023 |
| Customised Sewing Services Ltd | Manufacturing | 2013 |
| Cuttin Edge Carpets Ltd | Wholesale & retail | 2010 |
| Cutting Edge Associates Ltd | Arts & recreation | 2021 |
| Cutting Technology Limited | Extraterritorial | 2020 |
| CW (Halifax) Limited | Wholesale & retail | 2015 |
| CW Business Solutions Ltd | Information & communication | 2012 |
| CW Garments Ltd | Wholesale & retail | 2020 |
| Cwgc Capital Limited | Administrative & support | 2026 |
| Cypress Court (Shelf) Management Company Limited | Real estate | 2007 |
| Cytem Ltd | Information & communication | 2026 |
| Czerwinska Group International Ltd | Professional & scientific | 2022 |
| Czerwinska Group Ltd | Professional & scientific | 2019 |
| Czerwinska Group Will Writing & Estate Planning Ltd | Professional & scientific | 2022 |
| D & a Appliance Distribution Limited | Wholesale & retail | 2020 |
| D & C Briggs Properties Ltd | Real estate | 2024 |
| D & P Smith Properties Limited | Real estate | 2011 |
| D & S Developments (Yorkshire) Limited | Construction | 2010 |
| D a Sales Limited | Mining & quarrying | 2002 |
| D a Tiling Ltd | Construction | 2022 |
| D C Commercials (U K) Limited | Wholesale & retail | 2003 |
| D Earle Roofing & Building Ltd | Construction | 2026 |