| Buildblade Limited | Real estate | 1983 |
| Building Services & Independent Advisory Ltd | Construction | 2019 |
| Bullet Ltd | Professional & scientific | 2019 |
| Bullseye Hair Ltd | Other services | 2024 |
| Burkenby Joinery Limited | Construction | 2015 |
| Burn Bridge Pre-School Limited | Education | 2021 |
| Burnhill Holdings Limited | Wholesale & retail | 2016 |
| Burnhill Services Limited | Wholesale & retail | 2002 |
| Burnley Packaging Machinery Limited | Extraterritorial | 2010 |
| Burrows Sales and Lettings (Bordon) Ltd | Real estate | 2017 |
| Bush Insurance Solutions Ltd | Financial services | 2014 |
| C & C Office Cleaning Limited | Other services | 2010 |
| C & J Electrical Limited | Construction | 1999 |
| C a English Fibres & Yarns Limited | Manufacturing | 2010 |
| C and K Consulting Limited | Professional & scientific | 2024 |
| C C Building and Construction Ltd | Construction | 2022 |
| C Crone Limited | Transport & logistics | 2023 |
| C S Service, Repair and Maintenance Ltd | Manufacturing | 2021 |
| C W J Property Solutions Ltd | Real estate | 2023 |
| C&Ds Construction Ltd | Construction | 2024 |
| C.A. Homes & Gardens Limited | Construction | 2013 |
| Cadmans Law Limited | Professional & scientific | 2010 |
| Caine-Knight Property Limited | Real estate | 2018 |
| Calbar Property Ltd | Real estate | 2026 |
| Calder Valley Flooring Limited | Wholesale & retail | 2013 |
| Calder Valley Tree Care Ltd | Other services | 2018 |
| California M.O.T. Limited | Transport & logistics | 2003 |
| Call Centre Specialists Limited | Information & communication | 2012 |
| Callum Ward Limited | Administrative & support | 2017 |
| Calvert Dawson Limited | Professional & scientific | 2010 |
| CAN Electrical Contractors Limited | Construction | 2023 |
| Car Sales Cleckheaton Limited | Wholesale & retail | 2023 |
| Cardvault App Limited | Information & communication | 2026 |
| Care Maintenance Solutions Ltd | Construction | 2020 |
| Carelinx Ltd | Health & social care | 2019 |
| Carl Sharp Photography Ltd | Professional & scientific | 2010 |
| Carry on Campers Limited | Wholesale & retail | 2025 |
| CAS Yorkshire Properties Ltd | Administrative & support | 2020 |
| Casa Pizza II & Curries Ltd | Hospitality | 2017 |
| Caspell Holdings Limited | Real estate | 2018 |
| Catch Property Ltd | Real estate | 2026 |
| CB BIM Services Ltd | Professional & scientific | 2017 |
| CB Tech Services Ltd | Construction | 2025 |
| CBE+ Holdings Ltd | Financial services | 2017 |
| CBS Transport Limited | Transport & logistics | 2012 |
| CC Body Confidence Ltd | Health & social care | 2025 |
| CC TAN & Skin Ltd | Other services | 2022 |
| CCF Heating Limited | Construction | 2018 |
| CCK Consultancy Ltd | Information & communication | 2022 |
| CCL Services Limited | Wholesale & retail | 2001 |
| CCM Roofing Services Ltd | Construction | 2021 |
| Celerem Ltd | Professional & scientific | 2023 |
| CEM Prime Properties Ltd | Real estate | 2015 |
| Centenary Shipping Services Limited | Transport & logistics | 1995 |
| Centralgrade Construction Limited | Wholesale & retail | 1993 |
| CGJ Solutions Limited | Professional & scientific | 2017 |
| CH Maintenance Services Limited | Administrative & support | 2004 |
| Chain Bar Electrical Engineers Ltd | Construction | 2007 |
| Change the Future Ltd | Financial services | 2008 |
| Charisbrand Limited | Wholesale & retail | 2023 |
| Charlesworth's Serviced Offices Limited | Wholesale & retail | 2014 |
| Charlton Hemingway Ltd | Hospitality | 2015 |
| Charnwood Regency Guest House Limited | Hospitality | 2019 |
| Charoensap Ltd | Health & social care | 2025 |
| Checking Your Staff Limited | Administrative & support | 2023 |
| Chef's Direct Yorkshire Ltd | Administrative & support | 2017 |
| Cheshire Sales & Lettings Limited | Real estate | 2026 |
| Chillis Takeaway BFD Limited | Hospitality | 2025 |
| CHL Property Group Ltd | Real estate | 2020 |
| CHM Property Solutions Ltd | Real estate | 2024 |
| Chris Kelly Brooke Ltd | Wholesale & retail | 2026 |
| Chrisaliss Ltd | Real estate | 2023 |
| Church Meadow Leisure Limited | Hospitality | 2018 |
| City Asbestos Limited | Water & waste | 2016 |
| CJA Accountants Limited | Professional & scientific | 2012 |
| CJH Digital Ltd | Wholesale & retail | 2025 |
| CJT Bar Ltd | Hospitality | 2024 |
| CL Accommodations Ltd | Extraterritorial | 2023 |
| Cladding Depot Limited | Wholesale & retail | 2016 |
| Claire Appleby Estates Limited | Real estate | 2024 |
| Clean Swwipe Entertainment PLC | Information & communication | 2022 |
| Cleck VIP Cuts Ltd | Other services | 2025 |
| Cleckheaton Auto Dismantlers Ltd | Wholesale & retail | 2024 |
| Cleckheaton Engineering Company Limited | | 1960 |
| Cleckheaton Folk Festival Organisation | Arts & recreation | 2004 |
| Cleckheaton Hand Carwash Ltd | Administrative & support | 2025 |
| Cleckheaton Motor Sales Ltd | Wholesale & retail | 2015 |
| Cleckheaton Properties Limited | Real estate | 2004 |
| Cleckheaton Reclamation and Roofing Supplies Limited | Wholesale & retail | 2025 |
| Cleckheaton Sports Club Ltd | Arts & recreation | 2025 |
| Cleckheaton Virtual Golf Centre Limited | Arts & recreation | 2017 |
| Cleckheaton Warehouse Company Limited | Transport & logistics | 2004 |
| Clecktech Solutions Limited | Manufacturing | 2010 |
| Clecktibles Limited | Wholesale & retail | 2024 |
| Cleghorn Properties Ltd | Real estate | 2023 |
| Click News BFD Ltd | Wholesale & retail | 2024 |
| Clickable Solutions Ltd | Information & communication | 2022 |
| Cliffe Hill Second Investments Limited | Financial services | 1963 |
| Cliffe Lane 1966 Limited | Extraterritorial | 2014 |
| Cliffe Lane Construction Limited | Construction | 1980 |