| Burtonwood Guardian Security Services Limited | Extraterritorial | 1999 |
| Business Manager U.K. Limited | Manufacturing | 2006 |
| Business Zest Ltd | Administrative & support | 2004 |
| Buy Rent Sell Limited | Real estate | 2024 |
| C C Systematics Limited | Extraterritorial | 2014 |
| C Huyton Joinery Limited | Construction | 2003 |
| C K Properties Management Company Limited | Households | 2005 |
| C M Promotions Limited | Professional & scientific | 2006 |
| C S Construction UK Ltd | Construction | 2005 |
| C&E Aluminium Systems Ltd | Manufacturing | 2020 |
| C&M Books Ltd | Wholesale & retail | 2024 |
| Caladore Limited | Manufacturing | 2003 |
| Callenos Limited | | 1976 |
| Canlines Limited | Manufacturing | 1991 |
| Car Care Centre (North West) Ltd | Wholesale & retail | 2007 |
| Carberry-Parks and Bootle Brake & Clutch Limited | Wholesale & retail | 1974 |
| Carddispenser UK Limited | Administrative & support | 1987 |
| Care Link Homes Limited | Construction | 1987 |
| Carina Kitchens & Bedrooms Limited | Manufacturing | 1998 |
| Carl Cecchini GAS Services Limited | Construction | 1999 |
| Carmen Design UK Ltd | Wholesale & retail | 2019 |
| Carmichael Estates Ltd | Real estate | 2000 |
| Carnet.Uk.Com Limited | Financial services | 2000 |
| Carolina Engineering Company Limited(The) | | 1922 |
| Carpet Corner (ST. Helens) Limited | Wholesale & retail | 2002 |
| Carson Management Limited | Professional & scientific | 2024 |
| Cash & Carry Windows (Wirral) Limited | | 1998 |
| Cask House Taverns Limited | Hospitality | 2002 |
| Cassco Commercials Limited | Professional & scientific | 2002 |
| Caudwell Medical Services Limited | Health & social care | 2010 |
| CB Birkenhead Limited | Hospitality | 2025 |
| CCS Liverpool Limited | Financial services | 2014 |
| CDP Direct Limited | Professional & scientific | 1999 |
| Cedar Grange Ltd | Health & social care | 2003 |
| Cedars Care (Winscombe Hall) Limited | Health & social care | 2005 |
| Cedars Care Group Limited | Professional & scientific | 2003 |
| Cello Software Limited | Information & communication | 1998 |
| Celona Limited | Construction | 1976 |
| Central Polishing Supply Co. Limited | Manufacturing | 1982 |
| Centralgrange Environmental Waste Limited | Water & waste | 1999 |
| Centreline Carpentry & Joinery Ltd | Construction | 2005 |
| Cetax Engineering Limited | Manufacturing | 1987 |
| Chain Break Limited | Real estate | 2006 |
| Chane Terminals UK Ltd | Transport & logistics | 2008 |
| Chapel House Southport Ltd | Wholesale & retail | 1976 |
| Charlton Arms Wellington Limited | Real estate | 2017 |
| Chazezesa Medicals Limited | Public administration | 2020 |
| Cherry Tree Lodge Private Retirement Home Limited | Health & social care | 2004 |
| Cheshire Securities Limited | Professional & scientific | 1981 |
| Chestview (North East) Limited | Professional & scientific | 1994 |
| Childwall and Wavertree Primary Care Limited | Health & social care | 2024 |
| Childwall Table and Chair Hire Limited | Administrative & support | 2005 |
| Chill Panel Services Ltd | Professional & scientific | 2026 |
| Chippy CAD Draughting Services Limited | Professional & scientific | 2007 |
| Chivite Properties Limited | Professional & scientific | 2002 |
| Chris Reynolds Pallets (N.W.) Ltd. | Other services | 1996 |
| Christ Enterprise Limited | Wholesale & retail | 2022 |
| Christopher Pratts Limited | Extraterritorial | 2004 |
| Chriswin Developments Limited | Construction | 2022 |
| Citrus House Limited | Construction | 2000 |
| CK Properties (North West) Limited | Real estate | 2001 |
| Clad Property Investments Limited | Real estate | 2021 |
| Claire Collins Consultancy Limited | Professional & scientific | 2006 |
| Claridges Limited | Wholesale & retail | 1993 |
| Clasper Consulting Limited | Professional & scientific | 2007 |
| Classic Design Engineering Ltd | Professional & scientific | 2001 |
| Cleveland Electrical Company Limited | Administrative & support | 1967 |
| Clevergain Limited | Real estate | 1988 |
| Cliff Estate(Wallasey)Management Company Limited | Households | 1961 |
| CM Financial Group Limited | Real estate | 2004 |
| Coastal Court (Southport) Company Limited | Households | 1996 |
| Cole Metal Products Limited | Manufacturing | 1978 |
| Combitech Security Solutions Limited | Administrative & support | 2006 |
| Compere Systems Limited | Manufacturing | 1989 |
| Connolly Freight Limited | Transport & logistics | 2001 |
| Consultant GAS Engineers Limited | Manufacturing | 1978 |
| Continental Liquor Store OFF Licence Ltd | Wholesale & retail | 2004 |
| Cool Case Company (UK) Limited | Extraterritorial | 1991 |
| Core Property Management & Consultancy Limited | Real estate | 1999 |
| Corri Limited | Financial services | 1988 |
| Costinel Health Care Ltd | Health & social care | 2017 |
| Counterline Limited | Manufacturing | 2005 |
| Country Christmas Savings Club Limited | Professional & scientific | 1980 |
| Crab Apple Way Holdings Limited | Financial services | 2018 |
| Crab Apple Way Property Company Limited | Real estate | 2018 |
| Craig Engineering (ST. Helens) Limited | Real estate | 1993 |
| Cressington Care Ltd | Health & social care | 2002 |
| Crocodile Limited | Professional & scientific | 2003 |
| Crologic Limited | Health & social care | 2005 |
| Cromdale Transport Services Limited | Transport & logistics | 1985 |
| Crompton Design Manufacturing Limited | Administrative & support | 1986 |
| Crosshall Holdings Limited | Real estate | 2003 |
| Crossroads Care North West | Health & social care | 2004 |
| Crystal Clear International Limited | Manufacturing | 1995 |
| CT Commercial Ltd | Wholesale & retail | 2007 |
| Culcheth Property Management Limited | Extraterritorial | 2007 |
| Cumfybus Ltd | Transport & logistics | 2002 |
| Custom Fabrikations (UK) Ltd | Extraterritorial | 1994 |
| Customwise Limited | Transport & logistics | 2003 |
| D & D Retail Limited | Transport & logistics | 2006 |