| Business Furnishings Limited | Manufacturing | 2013 |
| Business Intelligence Software Limited | Information & communication | 2009 |
| Businessok Limited | Professional & scientific | 2025 |
| Busy Bodies (Euxton) Limited | Education | 2007 |
| Busy Kids (NW) Ltd | Education | 2008 |
| Butler Consulting Services Limited | Professional & scientific | 2019 |
| Buttercup Meadow Holdings Ltd | Hospitality | 2026 |
| Buy to LET Daddy Ltd | Real estate | 2018 |
| Bwph Ltd | Construction | 2023 |
| BY Jeannie Limited | Other services | 2024 |
| BY Leisure Limited | Arts & recreation | 2023 |
| Byandlarge Ltd | Professional & scientific | 2010 |
| Bygone Times Rents Limited | Real estate | 2002 |
| Bygone Times Trading Limited | Wholesale & retail | 2002 |
| Byou by Louise Ltd | Other services | 2019 |
| C & a Property Rentals NW Ltd | Real estate | 2020 |
| C & C Convenience Stores Limited | Financial services | 2016 |
| C & K Jewellers Limited | Wholesale & retail | 2016 |
| C & L Promotions Limited | Professional & scientific | 2023 |
| C & S Groundworks Chorley Limited | Construction | 2018 |
| C & S Products Limited | Administrative & support | 2005 |
| C a Morland Ltd | Construction | 2014 |
| C B Cooker Services Ltd | Other services | 2019 |
| C C Gymnastics Limited | Arts & recreation | 2015 |
| C J Brown Ltd | Hospitality | 2007 |
| C J Dowbekin Construction Management and Building Services Ltd | Construction | 2014 |
| C P C P Transport Ltd | Transport & logistics | 2026 |
| C R Heating Limited | Construction | 2024 |
| C S E Enterprises Ltd | Administrative & support | 2023 |
| C Sayers Property Ltd | Real estate | 2026 |
| C T Mccarthy Limited | Wholesale & retail | 2019 |
| C&C DEL Ltd | Transport & logistics | 2019 |
| C&C Mason Services Ltd | Agriculture & fishing | 2024 |
| C&W Homes Ltd | Real estate | 2019 |
| C. J. Schofield Logistics Limited | Transport & logistics | 2015 |
| C.I.A. Brickworks Limited | Construction | 2007 |
| C.K. Telecom Services Limited | Information & communication | 2009 |
| C.L Initiatives Ltd | Information & communication | 2011 |
| C.M. Whiles Ltd | Health & social care | 2021 |
| C.N. Cladding Ltd | Construction | 1994 |
| C1 Contractors Ltd | Construction | 2018 |
| C11 Consulting Limited | Professional & scientific | 2017 |
| CA Medical Services Ltd | Health & social care | 2019 |
| Cable and Wire Machinery Services Ltd | Manufacturing | 2025 |
| Cable Control Limited | Manufacturing | 2013 |
| Cabora Technologies Limited | Information & communication | 2017 |
| Cachart Clifford Ltd | Real estate | 2023 |
| CAD Digital Solutions Limited | Information & communication | 2024 |
| Cadman-Jones Developments Limited | Construction | 2010 |
| Cadot Ltd | Wholesale & retail | 2024 |
| Cafe Culture Restaurants Ltd | Hospitality | 2021 |
| Cafe India (South Shields) Ltd | Hospitality | 2013 |
| Caffè Manna Limited | Hospitality | 2016 |
| Cake by Hannah Jones Limited | Wholesale & retail | 2023 |
| Cakebyte Ltd | Manufacturing | 2025 |
| Cal-Com Systems Limited | Manufacturing | 2015 |
| Calder Coating Limited | Manufacturing | 2014 |
| Calderbank Property Limited | Real estate | 2021 |
| Calderstone Developments Ltd | Construction | 2026 |
| Calderstones Homes Limited | Construction | 2002 |
| Calec Electrical Ltd | Construction | 2022 |
| Calif Bar (Wolverhampton) Limited | Hospitality | 2019 |
| Callan and Taylor Developments Ltd | Real estate | 2021 |
| Calmdrive Ltd | Information & communication | 2026 |
| Calmkit Ltd | Wholesale & retail | 2025 |
| Calzane HGV Services Ltd | Transport & logistics | 2012 |
| CAM Electrical Supplies Ltd | Wholesale & retail | 2026 |
| Cambridge Investments Limited | Financial services | 1978 |
| Campbell Street Stores Limited | Wholesale & retail | 2016 |
| Canatronics Automation (Global) Ltd | Manufacturing | 2018 |
| Canatronics Automation Ltd | Manufacturing | 2019 |
| Canatronics International Ltd | Manufacturing | 2017 |
| Canatronics Ltd | Manufacturing | 2017 |
| Candas Properties Limited | Real estate | 2025 |
| Canwe Solutions C.I.C | Education | 2009 |
| CAP Fixings Limited | Extraterritorial | 2011 |
| Capabilities Beyond Engineering Limited | Professional & scientific | 2025 |
| Capesthorne Enterprises Ltd | Wholesale & retail | 2024 |
| Capital Electrics Ltd | Construction | 2016 |
| Caprica Consulting Limited | Professional & scientific | 2010 |
| Capsicum Solutions Limited | Information & communication | 2015 |
| Captain Cargo 10 Ltd | Transport & logistics | 2024 |
| Car & Commercial (Chorley) Limited | Wholesale & retail | 2009 |
| Car Nation (NW) Limited | Financial services | 2019 |
| Carbon Cleaning Soloution Ltd | Wholesale & retail | 2018 |
| Carbon Credit Group Ltd | Energy | 2025 |
| Carbon Credit Platform Ltd | Wholesale & retail | 2025 |
| Cardew Design Europe Ltd. | Wholesale & retail | 2007 |
| Care to Dream Sleep Consultant Ltd | Other services | 2024 |
| Carehomelife Ltd | Wholesale & retail | 2011 |
| Carenet Systems Ltd | Other services | 2017 |
| Carfamily Ltd | Wholesale & retail | 2020 |
| Caring the Wright Way Limited | Health & social care | 2022 |
| Carl Meyler Associates Limited | Administrative & support | 2026 |
| Carlotoomer Ltd | Hospitality | 2017 |
| Carlton Smith Asset Protection Limited | Financial services | 2015 |
| Carnforth Books & Crafts Limited | Wholesale & retail | 2013 |
| Carole Erica Holmback Costar Limited | Extraterritorial | 2023 |
| Carr Consultancy Ltd | Professional & scientific | 2024 |
| Carrington Textiles International Limited | Wholesale & retail | 2020 |