| Cake House Hayes Ltd | Wholesale & retail | 2020 |
| Cake-Girl London Ltd | Manufacturing | 2018 |
| CAL India Travel Ltd | Administrative & support | 2025 |
| Cali Holdings Ltd | Real estate | 2024 |
| Cameracrews Ltd | Information & communication | 2009 |
| Campbell Consulting Group Limited | Administrative & support | 2022 |
| Canarywharf Accountancy Limited | Professional & scientific | 2017 |
| Capital Group Investments (LTN) Ltd | Wholesale & retail | 2023 |
| Captavio Technologies Limited | Information & communication | 2021 |
| Cardinal Point Limited | Information & communication | 2013 |
| Care Bear Childcare Ltd | Health & social care | 2022 |
| CARE4UHOMECARE Franchising Ltd | Administrative & support | 2023 |
| Cargofin Limited | Manufacturing | 2003 |
| Carrot Capability Ltd | Professional & scientific | 2019 |
| Casey Annbary Consultancy Ltd | Professional & scientific | 2025 |
| Casma Technology Limited | Wholesale & retail | 2023 |
| Castle M & E Services Limited | Manufacturing | 2018 |
| Cat NAP Properties Ltd | Construction | 2026 |
| Catkin Consulting Limited | Financial services | 2016 |
| Cavendish Court Owners Limited | Households | 2003 |
| Cavendish Project Consulting Ltd | Professional & scientific | 2022 |
| Cedar Residential Developments Ltd | Construction | 2015 |
| Cedars Cottage Epsom Limited | Real estate | 2023 |
| Cedars Retreat Management Company Limited | Extraterritorial | 2014 |
| Cedez Ltd | Wholesale & retail | 2023 |
| Celtic Community Wood Fuel Limited | Wholesale & retail | 2012 |
| Certus Safety Services Ltd | Professional & scientific | 2020 |
| Cfdc Ltd | Construction | 2023 |
| Champion Sports Floors Limited | Construction | 2025 |
| Chaos (Commercials) Limited | Information & communication | 2002 |
| Chapman-Daniel Limited | Administrative & support | 2016 |
| Cheap Minicabs Heathrow Limited | Other services | 2015 |
| Chertsey Community Market CIC | Professional & scientific | 2025 |
| Chertsey Pubs Limited | Hospitality | 2017 |
| Chertsey Town Football Club Limited | Arts & recreation | 2024 |
| Cheval Social Management Limited | Real estate | 2019 |
| Chieftain Tech Limited | Information & communication | 2023 |
| Chrisco International Ltd | Wholesale & retail | 2025 |
| Church Square Preschool Ltd | Health & social care | 2024 |
| Churchill Coaches Ltd | Transport & logistics | 2005 |
| Churchview Close Management Company Limited | Real estate | 2010 |
| Ci&Ci Strategic Growth Partners Limited | Professional & scientific | 2025 |
| Cipher Ambit Ltd | Information & communication | 2012 |
| Cirque DU Chennai CIC | Arts & recreation | 2026 |
| Citadel Build Ltd | Construction | 2026 |
| City West Cleaning Specialists Limited | Administrative & support | 2003 |
| CJC Gains Ltd | Health & social care | 2021 |
| Cjowersengineering Ltd | Professional & scientific | 2022 |
| CJP Building Services Limited | Construction | 2016 |
| CJP Design and Build Ltd | Construction | 2023 |
| CJS Property Holdings and Lettings Ltd | Real estate | 2024 |
| Cladding Centre Limited | Wholesale & retail | 2015 |
| Claremont Lettings Limited | Real estate | 2010 |
| Class One Truck Repairs Limited | Manufacturing | 2009 |
| Class Two Truck Repairs Limited | Manufacturing | 2023 |
| Classic Bespoke LR Ltd | Wholesale & retail | 2026 |
| Cleana Kitchens Limited | Administrative & support | 2005 |
| Clik Empire Ltd | Wholesale & retail | 2013 |
| Cloudfiregroup Limited | Professional & scientific | 2025 |
| Cloudpro Technologies Ltd | Information & communication | 2020 |
| Clueinit Ltd | Information & communication | 2019 |
| Collaborative Psychology Limited | Other services | 2018 |
| College Hill (Oxford) Limited | Construction | 2022 |
| Collingwood Court Chertsey Right to Manage Company Limited | Other services | 2010 |
| Colour by Numbers Ltd | Wholesale & retail | 2018 |
| Colour My Wall Ltd | Manufacturing | 2025 |
| Community Life Properties Limited | Real estate | 2013 |
| Community Life Trust | Other services | 2002 |
| Company Maria Rental Cleaning Limited | Administrative & support | 2023 |
| Compass Group Finance NO. 3 Limited | Professional & scientific | 2016 |
| Compass Group Finance NO.2 Limited | Professional & scientific | 1996 |
| Compass Group Finance NO.4 Limited | Professional & scientific | 2004 |
| Compass Group Finance NO.5 Limited | Hospitality | 2003 |
| Compass Group Holdings Public Limited Company | Hospitality | 1987 |
| Compass Group North America Investments Limited | Professional & scientific | 2005 |
| Compass Group North America Investments NO.2 | Professional & scientific | 2005 |
| Compass Group Pension Trustee Company Limited | Professional & scientific | 1988 |
| Compass Group PLC | Professional & scientific | 2000 |
| Compass Group Procurement Limited | Hospitality | 2007 |
| Compass Group Trustees Limited | Extraterritorial | 1991 |
| Compass Healthcare Group Limited | Extraterritorial | 1948 |
| Compass Hotels Chertsey | Professional & scientific | 2001 |
| Compass IT Consulting Limited | Information & communication | 2016 |
| Compass Nominee Company Number Fourteen Limited | Extraterritorial | 1961 |
| Compass Overseas Holdings Limited | Professional & scientific | 1992 |
| Compass Overseas Holdings NO.2 Limited | Professional & scientific | 1995 |
| Compass Overseas Services Limited | Extraterritorial | 1975 |
| Compass Pension Trustees Limited | Professional & scientific | 2000 |
| Compass Quest Limited | Extraterritorial | 1997 |
| Compass Secretaries Limited | Extraterritorial | 2000 |
| Compass Site Services Limited | Extraterritorial | 1961 |
| Compass UK Pension Trustee Co Limited | Professional & scientific | 2002 |
| Comprehensive Care Services Ltd | Health & social care | 2018 |
| Conequip Construction Machinery Rental Ltd | Administrative & support | 2025 |
| Connaught Garage Brookwood Limited | Arts & recreation | 1985 |
| Connections Property Services Limited | Hospitality | 2019 |
| Conner Arnold Racing Services Ltd | Professional & scientific | 2019 |
| Construction Health and Safety Group | Education | 1981 |
| Contact High Limited | Administrative & support | 2022 |
| Convac Limited | Manufacturing | 1982 |