| Cato UK Limited | Information & communication | 2007 |
| Cayan Properties Limited | Real estate | 2017 |
| CB3 Promotions Limited | Arts & recreation | 2023 |
| CCO Health Limited | Health & social care | 2015 |
| CD Glass and Glazing Ltd | Construction | 2026 |
| CDM Safety Limited | Administrative & support | 2015 |
| CDM10 Limited | Arts & recreation | 2024 |
| CDM10 Properties Limited | Real estate | 2025 |
| Celador Construction Ltd | Professional & scientific | 2023 |
| Celeris Bespoke Limited | Wholesale & retail | 2006 |
| Century TV Limited | Extraterritorial | 2024 |
| Certified Attire Ltd | Wholesale & retail | 2025 |
| Chadwick Noble Limited | Professional & scientific | 2008 |
| Challenge Fencing Limited | Wholesale & retail | 1987 |
| Champions Path Limited | Arts & recreation | 2025 |
| Change Proof Ltd | Information & communication | 2025 |
| Charco 143 Limited | Extraterritorial | 1988 |
| Charles Cochrane Fine Art Limited | Other services | 2020 |
| Charles Cochrane Limited | Other services | 2014 |
| Charles Dixey Limited | Financial services | 2008 |
| Charles House Estates Limited | Real estate | 2020 |
| Charles House Leasehold Ltd | Real estate | 2021 |
| Charles House Toutley Ltd | Construction | 2015 |
| Charltons Southern Ltd | Administrative & support | 2024 |
| Charnwood Resources Ltd | Professional & scientific | 2009 |
| Chatsworth Heath Holdings Ltd | Financial services | 2025 |
| Cheffrey Court Residents Association Limited | Real estate | 2006 |
| Chelsea Bridge Wharf (Block a) Limited | Professional & scientific | 2002 |
| Chelsea Bridge Wharf (Block B) Limited | Professional & scientific | 2002 |
| Chelsea Bridge Wharf (Block P) Limited | Professional & scientific | 2005 |
| Chelsea Bridge Wharf (C North) Limited | Professional & scientific | 2003 |
| Chelsea Bridge Wharf (Management Company) Limited | Extraterritorial | 2004 |
| Chelsea Close Flat Management Limited | Real estate | 1984 |
| Chemigres Consulting Limited | Professional & scientific | 2022 |
| Chilli Pepper Consulting Ltd | Other services | 2025 |
| Chirewa Limited | Arts & recreation | 2024 |
| Chirewa Properties Limited | Real estate | 2025 |
| Chris Michael Associates Limited | Professional & scientific | 2011 |
| Christie Business Consultants Ltd | Professional & scientific | 2023 |
| Christopher Lilford Education Ltd | Education | 2022 |
| Ciollo Ltd | Information & communication | 2007 |
| Circle of Confusion Limited | Information & communication | 2010 |
| City Poet Limited | Information & communication | 2014 |
| City Sanctuary Therapy Limited | Health & social care | 2022 |
| CJ Food Holdings Ltd | Financial services | 2025 |
| CJ Food Service Ltd | Hospitality | 2025 |
| CK Decor Surrey Limited | Construction | 2019 |
| Claire Tyne Consultancy Ltd | Professional & scientific | 2021 |
| Clare Homes Limited | Extraterritorial | 1991 |
| Clarity Digital Media Limited | Professional & scientific | 2015 |
| Clarke Estates Limited | Construction | 1999 |
| Clearvision Shutters Ltd | Manufacturing | 2024 |
| Clementson Consulting Limited | Professional & scientific | 2017 |
| Cleves Close(Managements)Limited | Administrative & support | 1965 |
| Clifford Studios Limited | Education | 2023 |
| Clippers Quay Eden Ltd | Real estate | 2019 |
| Clock House Mead Residents Management Company Limited | Households | 2020 |
| Clubgenie Ltd | Information & communication | 2026 |
| Clvf Limited | Real estate | 2023 |
| CM Developments Limited | Construction | 2010 |
| CMJ Engineering Services Ltd | Construction | 2023 |
| CMS Productions Ltd | Information & communication | 2013 |
| Cobham Beauty & Laser Limited | Other services | 2012 |
| Cobham BID Limited | Other services | 2023 |
| Cobham Bookkeepers Limited | Professional & scientific | 2014 |
| Cobham Community Garden CIC | Arts & recreation | 2014 |
| Cobham Day Surgery Limited | Health & social care | 2005 |
| Cobham Dental Limited | Health & social care | 2018 |
| Cobham Fish Bar Limited | Hospitality | 2023 |
| Cobham Free School Trust | Education | 2011 |
| Cobham Garden Services Ltd | Administrative & support | 2019 |
| Cobham Health Hub Limited | Health & social care | 2021 |
| Cobham Investment Holdings Ltd | Wholesale & retail | 2017 |
| Cobham Mill Preservation Trust | Arts & recreation | 1986 |
| Cobham Pilates Ltd | Health & social care | 2006 |
| Cobham Rugby & Sports Association | Arts & recreation | 2009 |
| Cobham Rugby Football Club Ltd | Arts & recreation | 2009 |
| Cobham Sands Investments Ltd | Financial services | 2024 |
| Cobham Sports Association (NO 1) Limited | Arts & recreation | 2006 |
| Cobham Street Food Ltd | Wholesale & retail | 2023 |
| Cobham Village Club Limited | Real estate | 1933 |
| Cobham Village Partnership Community Interest Company | Other services | 2021 |
| Cobham Yoga Limited | Arts & recreation | 2017 |
| Cobham Yoga Retreats Limited | Administrative & support | 2023 |
| Coffeemakers (Ingredients) Limited | Wholesale & retail | 2006 |
| Cogito Consulting Limited | Professional & scientific | 2010 |
| Colicci Holdings Ltd | Wholesale & retail | 2024 |
| Colicci Investments Limited | Real estate | 2016 |
| Colne Court Rowhedge Ltd | Hospitality | 2012 |
| Colony Productions Ltd | Manufacturing | 2023 |
| Colour ME Project Limited | Information & communication | 2024 |
| Communications & Destinations Ltd | Administrative & support | 2019 |
| Community Housing Action Limited | Extraterritorial | 1990 |
| Community Villages Limited | Professional & scientific | 2002 |
| Company Notary Limited | Professional & scientific | 2016 |
| Connected Partner Ltd | Wholesale & retail | 2020 |
| Conrad Property Services Ltd | Real estate | 2019 |
| Conscientia Research Limited | Administrative & support | 2006 |
| Conscientia Services Limited | Administrative & support | 2006 |
| Conservation Offsets Limited | Administrative & support | 2012 |