| Chigwell Valet Limited | Essex | 2006 |
| Chigwell Window Centre PLC | Ilford | 2013 |
| Chihera Special Ltd | Birstall Leicester | 2016 |
| Chijioke Venture Limited | London | 2019 |
| Chika Cana Ltd | South Croydon | 2023 |
| Chikimaroc Ltd | London | 2022 |
| Chikonde Limited | Swindon | 2018 |
| Chikoore Express Ltd | Derby | 2016 |
| Chilcomb Down House Limited | Winchester | 2022 |
| Chilcomb Down House Trust Limited | Winchester | 2022 |
| Child & Family Assessments Limited | London | 2012 |
| Child and Family CBT Services Limited | Bury St. Edmunds | 2015 |
| Child and Family Training (UK) Limited | York | 2012 |
| Child Brain Injury Rehabilitation Services Limited | Bicester | 2018 |
| Child Evangelism Fellowship of Britain | Poole | 1956 |
| Child Evangelism Fellowship of Ireland | Belfast | 2014 |
| Child Funeral Charity | Kettering | 2014 |
| Child of GOD Care Ltd | London | 2023 |
| Child Relief Limited | Esher | 2010 |
| Child Rights International Network - Crin | London | 2008 |
| Child Sleep Training Ltd | Bath | 2015 |
| Child Smile Everywhere Ltd | Barking | 2019 |
| Child's Shield Ltd | London | 2025 |
| Childcare by Rosie Ltd | Ryde | 2025 |
| Childhood Happiness Ltd | London | 2022 |
| Childlessness Overcome Through Surrogacy Limited | Royston | 2019 |
| Children Come First Ltd | London | 2012 |
| Children Evangelism Ministry INT. UK Ltd | Mildenhall | 2022 |
| Children First Uganda | Epsom | 2008 |
| Children in Distress | Edinburgh | 2008 |
| Children in Education UK | London | 2009 |
| Children in Northern Ireland | Belfast | 1997 |
| Children in Scotland Ltd | Edinburgh | 1983 |
| Children North East | Tyne & Wear | 1906 |
| Children NOT Numbers International Ltd | London | 2024 |
| Children of Artemis Limited | Castle Douglas | 2010 |
| Children of the Mekong | London | 2006 |
| Children Services Ltd | Wolverhampton | 2025 |
| Children's Activities Association CIC | Leeds | 2014 |
| Children's Flight Chaperone Limited | Manchester | 2017 |
| Childrens Cancer Centre of Lebanon (UK) Limited | Cardiff | 2014 |
| Childrive Ltd | Kingston Upon Thames | 2016 |
| Childs Charitable Trust | Bridgwater | 2013 |
| Childsplay N. Ireland Ltd | Bangor | 1975 |
| Childwall Abbey Nails Ltd | Liverpool | 2025 |
| Childwall Barbers Ltd | Liverpool | 2022 |
| Childwall Green Residents (RTM Company) Limited | Wirral | 2004 |
| Childwall Valley Developments Limited | Liverpool | 2018 |
| Chiles Really Good Ideas Ltd | Ashbourne | 2025 |
| Chilham Feeds Ltd | Meopham | 2026 |
| Chili Tequila Limited | Albrighton | 2024 |
| Chill 050 Limited | Ness | 2007 |
| Chill Air Contracts Limited | Bromsgrove | 2011 |
| Chill Beauty Limited | Wakefield | 2022 |
| Chill City Ltd | Enfield | 2022 |
| Chill Factor Limited | Bishops Stortford | 2000 |
| Chill Lounge Ltd | London | 2017 |
| Chill Massage Limited | Bournemouth | 2014 |
| Chill Nail Bar Ltd | Petts Wood | 2026 |
| Chill Nails Limited | Glasgow | 2026 |
| Chill the F OUT Yoga Limited | Manchester | 2022 |
| Chill Therapy CIC | Braunton | 2020 |
| CHILL0X Studio Ltd | Tipton | 2025 |
| Chillandham Trustee Company Limited | London | 2007 |
| Chillax Driving Skill 4 Life Limited | Attleborough | 2014 |
| Chillax London Limited | Hampton | 2010 |
| Chillco Refrigeration Limited | Ely | 2017 |
| Chilldass Shielding Ltd | Rochester | 2024 |
| Chillderness Ltd | London | 2018 |
| Chilled Car Finder.Com Limited | Norwich | 2024 |
| Chilled Food Association Limited | Kettering | 1991 |
| Chilled Inc Limited | Swanley Village | 2019 |
| Chilled Limited | Gravesend | 2022 |
| Chilled Swims CIC | Helston | 2023 |
| Chilled Valeting Limited | Norwich | 2024 |
| Chillfire Limited | Chelmsford | 2006 |
| Chilli Flame Hair Ltd | Norwich | 2022 |
| Chilli Hot Limited | Hounslow | 2019 |
| Chilli JAM Entertainment Limited | London | 2018 |
| Chilli Pepper Consulting Ltd | Cobham | 2025 |
| Chilli Phoenix Limited | Southend On Sea | 2006 |
| Chilli Productions Limited | Tonbridge | 2014 |
| Chilli Reds Limited | London | 2006 |
| Chilli Source Productions Limited | Cuffley | 2009 |
| Chilli Storm Productions Ltd | Brigg | 2026 |
| Chillington Holdings Limited | Bournemouth | 2024 |
| Chillington Self Storage Limited | Wolverhampton | 2013 |
| Chillio Ltd. | Wadhurst | 2017 |
| Chillout Worldwide Limited | Wimborne | 2012 |
| Chilltime Limited | Chichester | 2005 |
| Chillux Nails Ltd | London | 2026 |
| Chilly in the Shade Ltd | Croydon | 2013 |
| Chilserverput Ltd | London | 2022 |
| Chiltern Adventure Limited | Keswick | 2022 |
| Chiltern Aesthetics Limited | Elstree | 2015 |
| Chiltern Agencies Limited | London | 2019 |
| Chiltern Chamber Limited | Old Amersham | 2003 |
| Chiltern Christian Trust | Chesham | 2004 |
| Chiltern Court (Albert Road) Management Limited | St. Leonards-On-Sea | 1989 |
| Chiltern Engineering Limited | Chesham | 2010 |