| Central and North West London NHS Foundation Trust | London | A rating |
| Central Asia Metals plc | London | A rating |
| Central Auto Repairs Limited | Worthing | A rating |
| CENTRAL AUTOPARTS | WOLVERHAMPTON | A rating |
| Central Autos Ltd | MORDEN | A rating |
| Central Bank of the Republic of China (Taiwan) | London | A rating |
| Central Bedrooms and Kitchens Limited | Uxbridge | A rating |
| CENTRAL CAFE & TEA ROOM LTD | Stamford | A rating |
| Central Care Recruitment | Harlow | A rating |
| Central Carpets (Bolton) Ltd | Bolton | A rating |
| Central Chambers Law Solicitors | London | A rating |
| Central Chemical Supplies Ltd | Craigavon | A rating |
| Central Cheshire Chiropractic Clinic | Northwich | A rating |
| Central City Training Venues Ltd | London | A rating |
| Central coffee limited | London | A rating |
| Central Dental Care | Wembley | A rating |
| Central Dental Surgery | Lydney | A rating |
| Central England Co Operative Limited | Lichfield | A rating |
| Central England Law Centre | Coventry | A rating |
| Central Event Hire Ltd | Dartford | A rating |
| Central Fleet Solutions Ltd | Bathgate | A rating |
| Central Food Service Ltd | Stoke on Trent | A rating |
| Central Foundation Boys' School | London | A rating |
| Central Garage (Cumnock) LLP | Cumnock | A rating |
| Central Gurdwara Singh Sabha | Glasgow | A rating |
| Central Harvest Church | London | A rating |
| Central Health Holdings Ltd | London | A rating |
| Central Health Holdings Ltd | Bolton | A rating |
| Central Health London LLP | London | A rating |
| Central Hereford Dental Care | Hereford | A rating |
| Central Housing Solutions Ltd | Tipton | A rating |
| Central Industrial Services Limited | Throsk | A rating |
| Central Jamia Mosque Madni & Education Centre | Halifax | A rating |
| Central Japan Railway Company | London | A rating |
| Central London Community Healthcare NHS Trust | London | A rating |
| Central London Healthcare CIC | London | A rating |
| Central Mailing Services Limited | Erdington | A rating |
| Central Manchester Networks LTD | Manchester | A rating |
| Central Meat Wholesalers Ltd | Hayes | A rating |
| Central Medical Centre | Coventry | A rating |
| Central Medical Centre | PETERBOROUGH | A rating |
| CENTRAL MOSQUE OF BRENT | LONDON | A rating |
| Central Mosque Rochdale | Rochdale | A rating |
| Central News Food and Wine | Buckinghamshire | A rating |
| Central North Leeds Primary Care Network Ltd | Leeds | A rating |
| Central Nurseries | Craigavon | A rating |
| Central Office Unit 17 | Northwich | A rating |
| Central Orthodontics Limited | Kendal | A rating |
| Central Park Dental practice limited | PLYMOUTH | A rating |
| Central Park Surgery | PRESTON | A rating |
| Central Pharma (Contract Packing) Ltd | Bedford | A rating |
| Central Pharma Cell and Gene Therapy Limited | Haverhill | A rating |
| Central Region Schools Trust | Birmingham | A rating |
| Central Restaurant and Lounge | Ilford | A rating |
| Central School of Ballet | London | A rating |
| Central Security And Fire Limited | Brynmawr | A rating |
| CENTRAL SOUTHERN SECURITY LIMITED | Hampshire | A rating |
| Central Stores | Barnsley | A rating |
| Central Stores | South Croydon | A rating |
| Central Support Ltd | Barking | A rating |
| Central Surgery | Rugby | A rating |
| Central Surgery | South Shields | A rating |
| Central Surgery | Sawbridgeworth | A rating |
| Central Surgery | Barton Upon Humber | A rating |
| Central Surrey Health Limited | Woking | A rating |
| Central Technology Ltd | Chesterfield | A rating |
| Central Trust | South Woodford | A rating |
| Central Trust Limited | Watford | A rating |
| CENTRAL UK GROUP LIMITED | Wales | A rating |
| Central Veterinary Services | Bury St Edmunds | A rating |
| Central West Primary Care Network Ltd | Blackpool | A rating |
| CENTRALIZED AMBULANCE TRANSPORT SERVICES LTD | PETERBOROUGH | A rating |
| CentralNic Group Plc | London | A rating |
| Centralock Limited | Cramlington | A rating |
| Centrax Limited | Newton Abbot | A rating |
| Centre 61 Ministries | Newcastle | A rating |
| CENTRE ACADEMY LONDON | LONDON | A rating |
| CENTRE FOR ALTERNATIVE DISPUTE RESOLUTION EXPERTS (CADRE) LIMITED | Waterbeach | A rating |
| Centre for British Progress | London | A rating |
| Centre for Cities | London | A rating |
| Centre for Contemporary Arts | Glasgow | A rating |
| Centre for Economic and Business Research | London | A rating |
| Centre for Economic Policy Research (CEPR) | London | A rating |
| CENTRE FOR EDUCATION-UK LTD | London | A rating |
| Centre For Enabling EA Learning & Research | Blackpool | A rating |
| Centre for Energy Equality | Warrington | A rating |
| Centre for Environment, Fisheries and Aquaculture Science (Cefas) | Lowestoft | A rating |
| Centre for European Reform | London | A rating |
| Centre For Factories Of The Future Ltd. | Kenilworth | A rating |
| Centre for Finance, Technology and Entrepreneurship Ltd | London, | A rating |
| Centre for Global Education | Belfast | A rating |
| Centre for Good Relations Community Interest Company | Warrington | A rating |
| Centre for Health Sciences Training Research and Development (CHESTRAD) International | London | A rating |
| Centre for Homelessness Impact | London | A rating |
| Centre for Information Resilience C.I.C | London | A rating |
| Centre for International Christian Ministries | London | A rating |
| Centre for Mental Health | London | A rating |
| Centre for Osteopathic Research and Excellence | London | A rating |
| Centre For Policy Studies Limited | London | A rating |
| Centre for Process Innovation Limited | Redcar | A rating |
| Centre for Progressive Policy | London | A rating |
| Centre for Public Impact Europe | London | A rating |
| Centre for Sight | East Grinstead | A rating |
| Centre for Strategy & Evaluation Services LLP | Birmingham | A rating |
| CENTRE FOR SUBSTANCE USE RESEARCH LTD | Glasgow | A rating |
| Centre for Sustainable Healthcare | Oxford | A rating |
| Centre for the Advancement of Development and Human Rights T/A CAD-HR | London | A rating |
| Centre for the Governance of AI | London | A rating |
| CENTRE FOR TURKEY STUDIES & DEVELOPMENT | London | A rating |
| CENTRE NEWS | LONDON | A rating |
| CENTRE OCEAN STREAM THEATRE COMPANY | SOUTHAMPTON | A rating |
| Centre of Accountancy Careers & Training Ltd | London | A rating |
| CENTRE OF INTELLIGENT TECHNOLOGIES LTD | Dewsbury | A rating |
| Centre of Wellbeing, Training & Culture | Oldham | A rating |
| Centre People Appointments Limited | London | A rating |
| CENTRE SHOPFITTERS LTD | Stanford-Le-Hope | A rating |
| Centred Chiropractic Limited | Newcastle upon Tyne | A rating |
| Centred Solutions Limited | Runcorn | A rating |
| Centred(Scotland) | Inverness | A rating |
| Centrepeace Homes Ltd | Bristol | A rating |
| Centrepoint Church | Bathgate | A rating |
| Centrepoint Computer Services Ltd | Epsom | A rating |
| CENTREPOINT SERVICES LTD | London | A rating |
| Centrespace Design LLP | Henley on Thames | A rating |
| Centreville Partners Limited | London | A rating |
| Centric Brands International Europe | London | A rating |
| Centrica plc | Windsor | A rating |
| Centricus Asset Management Limited | London | A rating |
| Centro Asset Management Limited | London | A rating |
| Centro Familiar Vida Nueva Londres | LONDON | A rating |
| Centro Sourcing UK Ltd | Guildford | A rating |
| Centroid UK Ltd | Iver Heath | A rating |
| CENTRUM (UK) Ltd | London | A rating |
| Centrus Financial Advisors Limited | London | A rating |
| Centrust Care Homes Limited T/A Haydons Lodge | London | A rating |
| Centry Services Limited | London | A rating |
| Centryflow Technologies Ltd | SOUTHEND-ON-SEA | A rating |
| Centtrip Limited | London | A rating |
| Centum Engineering Services UK Ltd | The Creagh | A rating |
| Centura Group Ltd | Mitcham | A rating |
| CENTURAY TECHNOLOGIES UK LTD | London | A rating |
| Centurion Bulk Ltd | London | A rating |
| Centurion Europe | Doncaster | A rating |
| Centurion Fire Safety Solutions Ltd | Roker | A rating |
| CENTURION GOLF PLC | Hertfordshire | A rating |
| Centurion Health Care Ltd | Chesham | A rating |
| Centurion Management Systems Limited t/a Breathe HR | Horsham | A rating |
| Centurion Safety Products Ltd | Thetford | A rating |
| Centurion2 Limited | Dyce | A rating |
| Centuro Global Limited | London | A rating |
| Century Care Limited t/a The Brambles Rest Home | Preston | A rating |
| Century Club | London | A rating |
| Century Facades Limited | Tonbridge | A rating |
| CENTURY HEALTHCARE 2 LIMITED T/A EUXTON PARK CARE HOME | EUXTON | A rating |
| Century Healthcare 3 Limited T/A Mary Rose Manor | Portsmouth | A rating |
| Century Healthcare Limited | Lytham St Annes | A rating |
| Century Innovations Ltd | Royston | A rating |
| Century Inns Limited | St Ives | A rating |
| Century Pharmaceutical Ltd | Hemel Hempstead | A rating |
| Century Restaurant Limited | Cumbria | A rating |
| Century-Tech Limited | London | A rating |
| CenturyPlus Limited | Manchester | A rating |
| Ceolas Uibhist Ltd | Isle of South Uist | A rating |
| Ceon Machinery Control Ltd | COOKSTOWN | A rating |
| Ceox Services Ltd | Guildford | A rating |
| Cepac Limited | Rotherham | A rating |
| Cephas Care Ltd | Ipswich | A rating |
| CEPHAS RESOURCE SOLUTIONS LIMITED | London | A rating |
| Cepheid UK Limited | High Wycombe | A rating |
| CEPTER UK LTD | London | A rating |
| CER Net.works HKL Management Limited | London | A rating |
| CER Net.Works Management Limited | London | A rating |
| Cera Care Limited | London | A rating |
| Ceramex Ltd | Reading | A rating |
| Ceramic Studios Premier Ltd | London | A rating |
| CeramTec UK Limited | Southampton | A rating |
| CERAP UK Limited | Bristol | A rating |
| Cerberus European Capital Advisors LLP | London | A rating |
| Cerberus Nuclear Limited | Warrington | A rating |
| Cerberus Security Services Limited | London | A rating |
| Cercons UK Ltd | London | A rating |
| Cereal Partners UK | Welwyn Garden City | A rating |
| Cerealto UK Limited | Nottinghamshire | A rating |
| Cerebral Adaptive Forecasting Ltd (trading as Recurse ML) | London | A rating |
| Cerebral Palsy Cymru | Cardiff | A rating |
| CERECORE INTERNATIONAL LLP | London | A rating |
| Ceredigion County Council | Aberaeron | A rating |
| Cerelia UK Ltd (Trading as BakeAway) | Corby | A rating |
| Ceren Construction Ltd | London | A rating |
| CERENE CARE LTD | Grove Park | A rating |
| Ceres Energy Ltd | Hexham | A rating |
| Ceres Holographics Ltd | Livingston | A rating |
| Ceres Power Ltd | Horsham | A rating |
| Cerevance Limited | Cambridge | A rating |
| Cerillion Technologies Limited | London | A rating |
| CERIS E-COMMERCE & DIGITAL MARKETING LTD | LONDON | A rating |
| Cerkini & Co LTD | London | A rating |
| Cero Generation Services Limited | London | A rating |
| Ceros Crowd Fusion, Ltd | County Antrim | A rating |
| CERT property Ltd | Manchester | A rating |