| CHI Education Limited | Bridgend | 2023 |
| CHI Holistic Ltd | London | 2021 |
| CHI Integrative Clinic Limited | Northampton | 2026 |
| CHI KI Holdings PTY Ltd | Wallington | 2024 |
| CHI Living Ltd | Ashbourne | 2018 |
| Chic Aesthetics & Beauty Academy Ltd | London | 2019 |
| Chichester Coast Gymnastics Academy | Chichester | 2026 |
| Chichester College Group Commercial Limited | Chichester | 2018 |
| Chichester Forest Schools CIC | Chichester | 2019 |
| Chichester Gymnastics Academy Ltd | Chichester | 2023 |
| Chichester International College Ltd | London | 2020 |
| Chichester Marine Training Ltd | Chichester | 2025 |
| Chichester Montessori Limited | Runcton Chichester | 2000 |
| Chichester Sea School Limited | Chichester | 2009 |
| Chichester Swim School Limited | Chichester | 2023 |
| Chichester Tuition Hub Ltd | Chichester | 2019 |
| Chickywicks Nurseries Limited | Gerrards Cross | 2008 |
| Chiddingstone Church of England School | Edenbridge | 2011 |
| Chieftain Training Ltd | Southampton | 2018 |
| Chiggs Limited | Grays | 2015 |
| Chigwell School | Chigwell | 2006 |
| Child & Teen Behaviour Clinic Ltd | London | 2024 |
| Child 1ST (Bakewell) Ltd | Nottingham | 2016 |
| Child 1ST (Stoke) Ltd | Northampton | 2009 |
| Child 1ST Day Nursery (Stoke) Limited | Northampton | 2019 |
| Child 1ST Nurseries Limited | Derby | 2006 |
| Child and Adolescent Educational Psychology Ltd | London | 2025 |
| Child and Adolescent Psychology and Empowerment Service (Capes) Limited | Orpington | 2020 |
| Child and Educational Psychology Ltd | Sheffield | 2022 |
| Child and Educational Psychology Support Ltd | Banbury | 2024 |
| Child and Family Learning Trust | Cheltenham | 2011 |
| Child Autism UK | Bracknell | 1997 |
| Child Behaviour Direct Ltd | Stafford | 2024 |
| Child Care Complete Ltd | Cheadle | 2015 |
| Child Central Training Limited | Cumbernauld | 2016 |
| Child Centred Psychology Ltd | Sheffield | 2023 |
| Child Development Milestone Consulting Limited | London | 2025 |
| Child Dream | Southampton | 2025 |
| Child First Trust | Colchester | 2014 |
| Child Health Consultancy Ltd | Pinner | 2024 |
| Child in Time Limited | London | 2013 |
| Child LED Solutions Ltd | Southampton | 2019 |
| Child Light Limited | Cambridge | 1994 |
| Child Matters Ltd | Marlow | 2011 |
| Child Mental Health Limited | London | 2000 |
| Child of Light Initiative CIC | London | 2020 |
| Child of Ltd | Forest Row | 2015 |
| Child of the Earth CIC | Cardigan | 2023 |
| Child Prodigy Academy Limited | Brentwood | 2022 |
| Child Protection & Justice Global Alliance Ltd | London | 2025 |
| Child Seasons Ltd | Leeds | 2019 |
| Child Seat Safety Limited | Leyland | 2011 |
| Child Therapy Practitioners Ltd | Eastbourne | 2022 |
| Child to Parent Talk CIC | East Ham | 2026 |
| Child Trauma and Dissociation Ltd | Huddersfield | 2009 |
| Child Welfare Trust Limited | Bradford | 2010 |
| Child's Play Day Nursery (Penistone) Limited | Sheffield | 2012 |
| Child's Play Limited | Ossett | 2024 |
| Child's Play Neighbourhood Nursery Ltd | Bradford | 2004 |
| Child's Play Pre-School Ltd | Guildford | 2013 |
| Child's Play Therapeutic Services CIC | Dundee | 2026 |
| Child-Centred Practice Limited | Cockermouth | 2009 |
| Child-Link International AID Foundation | Salisbury | 2009 |
| Child-Neurology.Net Limited | Ilford | 2019 |
| Child-To-Child | Cambridge | 2013 |
| CHILD1ST Consultancy Limited | Croydon | 2013 |
| Childbase Partnership Limited | Newport Pagnell | 1989 |
| Childcare & Education Limited | Ravenshead | 2001 |
| Childcare & Tutors Limited | Oldham | 2026 |
| Childcare and Business Consultancy Services | London | 2000 |
| Childcare and Learning (Cranbrook) Limited | London | 2005 |
| Childcare Answered Limited | London | 2008 |
| Childcare Business Management Ltd | Sheffield | 2012 |
| Childcare Connections Limited | Edinburgh | 2000 |
| Childcare Direct Limited | Glasgow | 1994 |
| Childcare Highland Ltd | Inverness | 2015 |
| Childcare Management Company Ltd | Paisley | 2009 |
| Childcare Marketing Ltd | Cheltenham | 2020 |
| Childcare Oxford Ltd | Kidlington | 2023 |
| Childcare Policy and Resources Hub Ltd | Newcastle Upon Tyne | 2026 |
| Childcare Solution (UK) Limited | Grimsby | 2013 |
| Childcare Strategies Limited | Huddersfield | 2003 |
| Childcare Support on Site Limited | Telford | 1999 |
| Childcare Training Services Limited | Ravenshead | 2003 |
| CHILDCARE4U Nurseries Limited | Derby | 2016 |
| Childhood Matters Consulting Ltd | Wallingford | 2022 |
| Childhood Matters Inclusion Services Ltd | Wallingford | 2025 |
| Childhood Reimagined Ltd | London | 2023 |
| Childmize Ltd | Glasgow | 2019 |
| Childnet | London | 2000 |
| Childplayce Ltd | London | 2023 |
| Children & Authors’ Literary Fanfare and Events (Calf-Events) C.I.C. | Chadwell Heath | 2025 |
| Children & Young People First Ltd | Tamworth | 2024 |
| Children 1ST Nursery Limited | St Albans | 2017 |
| Children 4 Most at Flowery Field Limited | Hyde | 2016 |
| Children 4 Most at Squirrels Wood Limited | Hyde | 2010 |
| Children 4 Most Private Day Nursery Limited | Lancashire | 2003 |
| Children and Families Matter (Cafm) CIC | London | 2025 |
| Children and Families Network Hub Ltd | London | 2025 |
| Children First Academy Trust | London | 2019 |