| Crest Swim School Limited | Weymouth | 2019 |
| Crest Training Limited | Stratford | 2021 |
| Crest Training Services Ltd | Macduff | 2005 |
| Crest Virtual Academy Ltd | Lincoln | 2025 |
| Crestgrove Fit Energy Ltd | London | 2026 |
| Crestmont College of Business and Technology Ltd | Dorking | 2026 |
| Creswick Pre-School Limited | Welwyn Garden City | 2009 |
| Crew GAL Academy Ltd. | North Shields | 2022 |
| Crew Productions Franchise Limited | London | 2024 |
| Crew Productions Limited | London | 2015 |
| Crew Resource UK Ltd | Shrewsbury | 2025 |
| Crew Training Ltd | Bristol | 2022 |
| Crew Wellbeing Co Ltd | Southampton | 2025 |
| CREW42 Ltd | Liverpool | 2026 |
| Crewtrident Limited | Sleaford | 2019 |
| Crfc Community Partnership CIC | Cinderford | 2026 |
| Cribcards Ltd | Kettering | 2023 |
| Cribs Charitable Trust | Bexleyheath | 2006 |
| Cricademia UK Limited | Leeds | 2024 |
| Crick Pre-School | Northampton | 2013 |
| Cricket Coaching Academy Ltd | Slough | 2022 |
| Cricket Development Academy Ltd | Worcester | 2025 |
| Cricket Hoppers Limited | Winchester | 2025 |
| Cricket Performance Academy Ltd | Keighley | 2024 |
| Cricket School of Excellence Limited | High Wycombe | 2024 |
| Cricket Tikes Limited | Hereford | 2017 |
| Cricket Training Ltd | Wraysbury | 2026 |
| Cricket Vision Limited | Cranbrook, Kent | 2021 |
| Cricketqube Initiative CIC | Newcastle-Upon-Tyne | 2023 |
| Crickets Montessori Nursery School Limited | London | 2005 |
| Cricklade Manor Prep Limited | Corsham | 2014 |
| Cricklade Pre-School Playgroup | Swindon | 2010 |
| Cricklewood Wanderers C.I.C. | Wembley | 2021 |
| Cridders Swim School C.I.C. | Upminster | 2019 |
| Crieff Sensory & Illusion Activity Centre C.I.C. | Crieff | 2026 |
| Crigglestone ST James CE Primary Academy Trust | Wakefield | 2012 |
| Crime in Mind | London | 2012 |
| Crime Tech UK Limited | Alloa | 2018 |
| Crimeline Training Limited | Wigan | 2008 |
| Criminal Records Group CIC | London | 2021 |
| Criminon United Kingdom | East Grinstead | 2003 |
| Crims Care Limited | Erith | 2021 |
| Crimson Education (Europe) Ltd | London | 2016 |
| Crimson Global Academy (UK) Ltd | London | 2023 |
| Crimson Tutors Ltd | London | 2020 |
| Crinnova Solutions Ltd | London | 2014 |
| Criptic Arts Productions CIC | Polegate | 2025 |
| Criptic CIC | London | 2021 |
| Crisalida Limited | Petersfield | 2005 |
| Crisfield Educational Consultancy Limited | Abingdon | 2021 |
| Crisis Coaching Collective CIC | Mildenhall | 2026 |
| Crisis Response and Development Alliance Ltd | London | 2026 |
| Crismab Limited | Kettering | 2016 |
| Crisp & Crane Training Limited | Spalding | 2012 |
| Crisp Vocational Provision Limited | Nottingham | 2013 |
| Crissupport Ltd | Southport | 2025 |
| Cristian Galis Education Ltd | London | 2024 |
| Cristian's Driving School Ltd | Cambridge | 2026 |
| Cristina Strategies Limited | London | 2025 |
| Crit Think Limited | Manchester | 2024 |
| Crit-Iq Ltd | Haslemere | 2026 |
| Critical Care Reviews | Belfast | 2013 |
| Critical Engagement CIC | London | 2019 |
| Critical Path Sports Limited | Elland | 2021 |
| Critical Performance Training Limited | Bristol | 2019 |
| Critical Practical Ltd | Manchester | 2021 |
| Critical Steps Ltd | Wokingham | 2023 |
| Critical Team Performance Ltd | Harrogate | 2007 |
| Critical Thinking UK Limited | Hitchin | 2018 |
| Critique of Anthropology Limited | London | 2001 |
| CRL Training and Development Ltd | Heckmondwike | 2019 |
| CRM Education Ltd. | Ilkeston | 2013 |
| Croatian Supplementary School London C.I.C. | Guildford | 2022 |
| Crocker & Crocker Limited | Plymouth | 2022 |
| Crockshard Services Limited | Wingham | 2024 |
| Croft House Nursery Limited | Bolton | 2003 |
| Croft Nursery School Limited | Newcastle | 1990 |
| Croft Pottery Ltd | Thirsk | 2025 |
| Crofton Myers Training Ltd | Bromley | 2012 |
| Crofty Education Trust | Camborne | 2016 |
| Cromer Pre-School Limited | Stockton-On-Tees | 2021 |
| Crompton House Church of England Multi Academy Trust | Oldham | 2011 |
| Cromwell College | Blackburn | 2023 |
| Cromwell College of IT & Management Limited | London | 2004 |
| Cromwell Hall (Maldon) Limited | Maldon | 2015 |
| Cromwell Learning Community Academy Trust | Birmingham | 2016 |
| Cromwell Nurture Nest Ltd | London | 2025 |
| Cromwell Universite Ltd | Blackburn | 2012 |
| Cronovision Ltd | London | 2020 |
| Crookell-Slade Limited | Hertfordshire | 2003 |
| Crookham Hacklab CIC | Fleet | 2022 |
| Crookhey Hall Limited | Fareham | 1992 |
| Crookhill Early Years Limited | Ryton | 2011 |
| Crosbie & Thomas Consultancy Services Ltd | | 2007 |
| Crosby Driving Academy Limited | Liverpool | 2023 |
| Crosby Hall Educational Trust | Liverpool | 1988 |
| Crosby on Eden Church of England Primary School | Carlisle | 2012 |
| Crosfields School Trust Limited | Reading | 1957 |
| Cross & Main Ltd | Leicester | 2022 |
| Cross Compliance Training Limited | Corby | 2019 |