| Coppa Limited | London | 2015 |
| Copper Badger Ltd | Doncaster | 2026 |
| Copper Coatings Ltd | Poole | 2012 |
| Copper Fabrications Ltd | Glasgow | 2016 |
| Copper Finch Ventures Limited | Doncaster | 2026 |
| Copper FOX Building Services Limited | Castle Cary | 2022 |
| Copper Green Management Company Limited | Holywood | 2016 |
| Copper Horse Restaurant Limited | London | 2005 |
| Copper Kite Developments Limited | Cardiff | 2016 |
| Copper Kite Holdings Ltd | Doncaster | 2026 |
| Copper Leaf Advisory Team Ltd | Manchester | 2026 |
| Copper Mountain Networks Limited | Station Road | 2000 |
| Copper Parrot Limited | Stourbridge | 2023 |
| Copper Properties Ltd | Romford | 2019 |
| Copper Ridge Trading Solutions Ltd | Manchester | 2026 |
| Copper Top Coffee Ltd | Castleford | 2021 |
| Copper Zephyr Ltd | London | 2025 |
| Copperbright Limited | South Shields | 2011 |
| Copperfields Cement Ltd | | 2006 |
| Copperfields Collins Limited | London | 2013 |
| Copperfields Metal Ltd | | 2002 |
| Copperfields Military Hardwares Ltd | | 2004 |
| Copperfields Real Estates Ltd | | 2004 |
| Copperleaf Construction Limited | Macclesfield | 2007 |
| Copperleaf Homes Limited | Macclesfield | 2007 |
| Copperleaf Plant Hire Limited | Macclesfield | 2009 |
| Coppersmith & Dawlish Ltd | Warsop | 2019 |
| Copperstuff Limited | Fordingbridge | 2017 |
| Coppice 1962 Limited | Northampton | 2015 |
| Coppice Amber Investment Management Ltd | Coventry | 2015 |
| Coppice Road 26/02/1965 Limited | Rugeley | 2014 |
| Copplestones Limited | Holywell | 1998 |
| Copthorne Financial Services Ltd | Chorley | 2006 |
| Copwin International Group Co., Ltd | London | 2014 |
| Copy Akuten Limited | London | 2025 |
| Copy Catalyst Ltd | Bognor Regis | 2023 |
| Copyhold 1963 Limited | East Grinstead | 2013 |
| Copyrite Business Solutions (Holdings) Limited | Bristol | 2014 |
| Copyrite Business Solutions Limited | Bristol | 1996 |
| Copytrend Limited | Uxbridge | 1982 |
| Cor-Ten Steel Limited | Glasgow | 2018 |
| Cora Engineering Limited | Bury | 2021 |
| Cora Posh Food Limited | London | 2022 |
| Coradex Limited | Manchester | 2021 |
| Corah Limited | London | 1919 |
| Coral Cliff Consulting Pros Ltd | Manchester | 2026 |
| Coral Field International Co., Ltd | London | 2021 |
| Coral Island Limited | London | 1987 |
| Coral Maritime Ltd | London | 2015 |
| Coral Products (Mouldings) Ltd | Tamworth | 2012 |
| Coral Reef Business Hub Ltd | Manchester | 2026 |
| Coralaze Media Limited | Leeds | 2015 |
| Coraline Limited | Tanfield Lea | 2006 |
| Coralshell Limited | Nottingham | 2003 |
| Coralstar Limited | London | 2017 |
| Coram's Fields Company Trustee Limited | London | 2014 |
| Corban Properties Ltd | Magherafelt | 2004 |
| Corbar Consultants Limited | Dorset | 2007 |
| Corber Limited | London | 2014 |
| Corbett & Co International Construction Lawyers Limited | London | 2023 |
| Corbett Properties Limited | Liverpool | 2020 |
| Corbett-Line Limited | Deeside | 2000 |
| Corbitt Stamps Limited | Newcastle Upon Tyne | 2011 |
| Corby Imaging Limited | Crawley | 2023 |
| Corby Storage Limited | Corby | 2019 |
| Corby Tyres and Exhausts Limited | Winchester | 2010 |
| Corcrum Holdings Ltd | Newry | 2020 |
| Cordale Investments Limited | York | 2013 |
| Corde Handbags Limited | London | 2018 |
| Corden Ecological Limited | Calverton | 2024 |
| Corden Engineering & Fabricators Ltd | Calverton | 2024 |
| Corden Group Limited | Nottingham | 2006 |
| Corderv Limited | Bury | 2020 |
| Cordes Geo-Environmental Ltd | London | 2013 |
| Cordia Business Services Limited | Newbury | 2002 |
| Cordlean Limited | Galashiels | 2012 |
| Cordles Limited | London | 2025 |
| Core Assets Children's Services Limited | Bromsgrove | 2012 |
| Core Assets CSR Limited | Bromsgrove | 2009 |
| Core Assets Fostering Limited | Bromsgrove | 2012 |
| Core Assets Scotland Limited | Glasgow | 2013 |
| Core BIO Energy Ltd | Northampton | 2014 |
| Core China Ltd | Manchester | 2021 |
| Core Competence Management International Ltd. | Surrey | 2006 |
| Core Construction Northern Limited | London | 2025 |
| Core Consulting Engineers Ltd. | Reading | 2013 |
| Core Cost Consultancy Ltd | Cleckheaton | 2017 |
| Core Elite Ltd | Norwich | 2020 |
| Core for International Services Limited | Manchester | 2026 |
| Core Group (Global) Limited | Guildford | 2020 |
| Core Layer Limited | Dronfield | 2025 |
| Core Nominees Limited | London | 1989 |
| Core Plus Ltd | Bolton | 2018 |
| Core Prestige Ltd | York | 2024 |
| Core Puls Gym Ltd | London | 2023 |
| Core Records Ltd | East Grinstead | 2020 |
| Core Security Solution Limited | Birmingham | 2012 |
| Core Studios Ltd | Brighouse | 2016 |
| Core Value Property Management Ltd | Manchester | 2026 |
| Core Values Limited | Exeter | 2009 |