| Cambrian Robotics Limited | London | A rating |
| CAMBRIDGE & HUNTINGDON AIRPORT TRAVEL SERVICE LTD | Cambridge | A rating |
| Cambridge Aerospace Limited | London | A rating |
| Cambridge Agile Solutions Limited | Saffron Walden | A rating |
| Cambridge Allergy Ltd | Gosport | A rating |
| Cambridge Arts & Sciences | Cambridge | A rating |
| CAMBRIDGE ARTS & SCIENCES LIMITED | Cambridge | A rating |
| Cambridge Arts Theatre Trust Ltd | Cambridge | A rating |
| Cambridge Associates Limited | London | A rating |
| Cambridge Atomworks (2024) Ltd | Cambridge | A rating |
| Cambridge Avenue Medical Centre | Scunthorpe | A rating |
| Cambridge Bakery Ltd | Cambridge | A rating |
| Cambridge Bespoke Property Solutions Ltd | Royston | A rating |
| Cambridge Bioscience Limited | Cambridge | A rating |
| CAMBRIDGE BLUES (UK) LIMITED T/A TAWA KITCHEN | CAMBRIDGESHIRE | A rating |
| Cambridge Care Company Limited | Bury St Edmunds | A rating |
| Cambridge Care Homes Ltd | Haverhill | A rating |
| Cambridge Care Services | Cambridge | A rating |
| CAMBRIDGE CENTER FOR EDUCATION EXCHANGE LTD | Cambridge | A rating |
| Cambridge Chinese Christian Church | Cambridge | A rating |
| Cambridge City Company Limited | Histon | A rating |
| Cambridge City Council | Cambridge | A rating |
| Cambridge Cleantech | Cambridge | A rating |
| Cambridge Clinical Laboratories Limited | Cambridge | A rating |
| Cambridge Cognition Ltd | Cambridge | A rating |
| CAMBRIDGE COLLEGE OF MANAGEMENT AND SCIENCES LTD | Birmingham | A rating |
| Cambridge Commodities Ltd | Ely | A rating |
| Cambridge Conservatory Centre | Cambridge | A rating |
| Cambridge Consultants Limited | Cambridge | A rating |
| CAMBRIDGE CONSULTATION SERVICES LTD | Cambridge | A rating |
| Cambridge Crystallographic Data Centre | Cambridge | A rating |
| Cambridge Culture Exchange Ltd | london | A rating |
| Cambridge Cyrenians | CAMBRIDGE | A rating |
| Cambridge Dental Hub Ltd | Cambridge | A rating |
| Cambridge Design Partnership Ltd | Cambridge | A rating |
| Cambridge Digital Health | Cambridge | A rating |
| Cambridge Display Technology Ltd | Godmanchester | A rating |
| Cambridge Dream Limited | London | A rating |
| Cambridge Dynamics Limited | Huntingdon | A rating |
| CAMBRIDGE EATERY LIMITED T/A ZARA | Cambridgeshire | A rating |
| Cambridge Econometrics Limited | Cambridge | A rating |
| Cambridge Electric Cement Limited | Cambridge | A rating |
| Cambridge Energy Limited | Cambridge | A rating |
| Cambridge Enterprise Limited | Cambridge | A rating |
| Cambridge Eonomic Policy Associates Ltd | London | A rating |
| CAMBRIDGE FINANCE LTD | London | A rating |
| Cambridge Flat Roofing Co Ltd | Ely | A rating |
| Cambridge Future Tech Ltd | Cambridge | A rating |
| Cambridge GaN Devices Limited | Cambridge | A rating |
| Cambridge Genetics Limited | Coleraine | A rating |
| Cambridge Glasshouse Company Ltd | Brough | A rating |
| Cambridge Glycoscience Ltd | Cambridge | A rating |
| Cambridge Guarantee Limited | Ipswich | A rating |
| Cambridge Healthcare Research Limited | Cambridge | A rating |
| Cambridge Hotel and Lodge Ltd | Huddersfield | A rating |
| Cambridge House and Talbot | London | A rating |
| Cambridge House Opco Limited | London | A rating |
| Cambridge Innovation Capital Limited | Cambridge | A rating |
| Cambridge Insitu Ltd | Cambridge | A rating |
| Cambridge Intelligence LTD. | Cambridge | A rating |
| Cambridge Kinetics | Cambridge | A rating |
| Cambridge Logic Ltd | Cambridge | A rating |
| CAMBRIDGE MARINA LIMITED T/A THE PIKE & EEL HOTEL | St. Ives | A rating |
| Cambridge Mechatronics Ltd | Cambridge | A rating |
| Cambridge Medical Technologies Limited | Harston | A rating |
| Cambridge Microelectronics Ltd | Cambridge | A rating |
| Cambridge Middle East and North Africa Forum Ltd T/A MENAF | London | A rating |
| Cambridge Montessori Ltd | Cambridge | A rating |
| Cambridge Muslim College | Cambridge | A rating |
| Cambridge Nursing Home | Wanstead | A rating |
| CAMBRIDGE NUTRANOSTICS LIMITED | Cambridge | A rating |
| Cambridge Perfusion LLP | Cambridge | A rating |
| Cambridge Phenotyping Limited | London | A rating |
| Cambridge Photon Technology Limited | Saffron Walden | A rating |
| Cambridge Professional Academy Ltd | Cambridge | A rating |
| Cambridge Professional Development Ltd | Birmingham | A rating |
| CAMBRIDGE REAL ESTATE INVESTMENTS LIMITED | Oban | A rating |
| Cambridge Regional College | Cambridge | A rating |
| Cambridge Regulatory Services | St Ives | A rating |
| CAMBRIDGE RENTAL LIMITED | Cambridge | A rating |
| CAMBRIDGE REWINDS LIMITED | Cambridge | A rating |
| Cambridge Rugby Football Club Limited | Cambridge | A rating |
| Cambridge S&T Services Ltd | London | A rating |
| Cambridge Seminars College | Cambridge | A rating |
| Cambridge Sensoriis Ltd | Cambridge | A rating |
| Cambridge Smart Plastics Limited | Cambridge | A rating |
| Cambridge Solicitors LLP | Birmingham | A rating |
| Cambridge Spark Ltd | London | A rating |
| Cambridge Specsavers Hearcare Limited | Cambridge | A rating |
| Cambridge Sports Medicine Centre Ltd | Comberton | A rating |
| Cambridge Star College Ltd | Cambridge | A rating |
| Cambridge Steiner School Project | Cambridge | A rating |
| Cambridge Stoke College Limited | Sudbury | A rating |
| Cambridge Street School | Batley | A rating |
| Cambridge Touch Technologies Limited | Cambridge | A rating |
| Cambridge Tutors College | Croydon | A rating |
| Cambridge Union Society Enterprises Ltd | Cambridge | A rating |
| Cambridge United Football Club Limited | Cambridge | A rating |
| Cambridge University Boat Club | Cambridge | A rating |
| Cambridge University Hospitals NHS Foundation Trust | Cambridge | A rating |
| Cambridge University Press & Assessment | Cambridge | A rating |
| Cambridge Visionplus Limited | Cambridge | A rating |
| Cambridge Yeolim Church | Cambridge | A rating |
| Cambridgeshire & Peterborough NHS Foundation Trust | Cambridge | A rating |
| Cambridgeshire and Peterborough Combined Authority | Huntington | A rating |
| Cambridgeshire Community Services NHS Trust | St Ives | A rating |
| Cambridgeshire County Council | Huntingdon | A rating |
| Cambridgeshire Hotels Ltd | Cambridgeshire | A rating |
| CAMBRIDGESHIRE INNOVATION CENTRE LTD | Cambridge | A rating |
| Cambridgeshire Sports Physio and Back Care Ltd | Huntingdon | A rating |
| Cambrionix Limited | Cambridge | A rating |
| CAMBS CATERING LIMITED T/A RENUS | Cambridgeshire | A rating |
| Cambscuisine Group Ltd | CAMBRIDGE | A rating |
| CambusLodge(UK)Limited | London | A rating |
| Cambustion Limited | Cambridge | A rating |
| CAMcap Markets Limited | London | A rating |
| Camco Management Limited | London | A rating |
| Camcode Global Limited | Bristol | A rating |
| Camden 159 Property Management Limited | London | A rating |
| Camden AI Limited | London | A rating |
| Camden Arts Centre | London | A rating |
| CAMDEN COMMUNITY FOOTBALL AND SPORTS ASSOCIATION | London | A rating |
| Camden Cycles Ltd | London | A rating |
| CAMDEN CYCLES LTD | Camden Town | A rating |
| Camden Giving | London | A rating |
| Camden Group | Antrim | A rating |
| Camden Health Evolution Ltd | London | A rating |
| Camden High Street Practice Limited | London | A rating |
| Camden Road Supermarket | Great Yarmouth | A rating |
| Camden Town Brewery Ltd | London | A rating |
| Camden Town Specsavers Limited | London | A rating |
| CAMDENPICK NEO LIMITED | Ely | A rating |
| Camdor Global Advisors Ltd | London | A rating |
| CAME UK Limited | Castle Donington | A rating |
| Cameco UK Ltd | Berkshire | A rating |
| Camel fish ltd | wadebridge | A rating |
| Camel Thorn Films Limited | Bristol | A rating |
| Camellia Kebab & Pizza Ltd | Christchurch | A rating |
| Camellia Trading Ltd | Reading | A rating |
| Camelot Care (Bridgwater) Ltd t/a Avalon Nursing Home | Bridgwater | A rating |
| Camelot Care (Plymouth) Ltd | Plymouth | A rating |
| Camelot Care (Yeovil) Ltd | Yeovil | A rating |
| Camelot Care Ltd | Taunton | A rating |
| Camelot Chilled Foods Ltd | West Sussex | A rating |
| Camelott Digital Limited | Telford | A rating |
| Camels Head Store | Plymouth | A rating |
| Camera Obscura and World of Illusions | Edinburgh | A rating |
| Cameron + Ross Limited | Aberdeen | A rating |
| Cameron Barney LLP | London | A rating |
| Cameron Flow Control Technology (UK) Limited | Crawley | A rating |
| Cameron Landscapes and Garden Centre | Belfast | A rating |
| Cameron Mackintosh Ltd | London | A rating |
| Camertown Timber Merchants Limited | Hillingdon | A rating |
| Camfaud Concrete Pumps Ltd | Epping | A rating |
| Camfil Ltd | Haslingden | A rating |
| Camforyou Limited T/A Dawat Bar & Kitchen | London | A rating |
| Camgrain Stores Ltd | Cambridge | A rating |
| CAMHS PROFESSIONALS | London | A rating |
| Camino Healthcare Limited T/A Vestige Healthcare | Berkshire | A rating |
| Camion Infrastructure Limited | London | A rating |
| Camira Fabrics Limited | Mirfield | A rating |
| Camisado T/A Pepes Piri Piri | Stoke-On-Trent | A rating |
| Camlin Energy Ltd | Lisburn | A rating |
| Camlin Technologies Limited | Lisburn | A rating |
| Cammell Laird Shiprepairers & Shipbuilders Limited | Birkenhead | A rating |
| CAMP Services ltd | London | A rating |
| Camp XL | Whitbourne | A rating |
| Campaign Master (UK) Ltd | Harrow | A rating |
| Campaign Monitor Europe UK Ltd | London | A rating |
| CAMPAIGNE LIMITED T/A C THE DENTIST | CHEADLE | A rating |
| Campana Ltd T/A Taco Bell | Bideford | A rating |
| Campbell & Dumville (NW) Ltd | Heywood | A rating |
| Campbell & Gibb Ltd | Montrose | A rating |
| Campbell and Gibson - Dental & Implant Practice | Musselburgh | A rating |
| Campbell Charles Associates (2000) Limited, Trading as Atlantic Research Group | Leatherhead | A rating |
| Campbell College | Belfast | A rating |
| Campbell Crossley & Davis | Blackpool | A rating |
| Campbell Dental Practice Ltd | Stoke on Trent | A rating |
| Campbell Farms | Omagh | A rating |
| Campbell Industrial Products Limited | Larne | A rating |
| Campbell Johnston Clark Limited | London | A rating |
| Campbell North | London | A rating |
| Campbell Reed Limited | Welwyn Garden City | A rating |
| Campbell Reith Management Services Ltd | London | A rating |
| Campbell Scientific Limited | Loughborough | A rating |
| Campbell Trawlers Ltd | Newry | A rating |
| CAMPBELLS PRIME MEAT LTD | BY LINLITHGOW | A rating |
| Campbeltown Fish And Chips Ltd | Campbeltown | A rating |
| Campbeltown Medical Practice | CAMPBELTOWN | A rating |
| Campden BRI (Chipping Campden) Limited | Chipping Campden | A rating |
| Campden Limited | London | A rating |
| Campfire Agency Ltd | Cheltenham | A rating |
| Camphill Blair Drummond Trust Ltd | Stirling | A rating |
| Camphill Community Clanabogan | Omagh | A rating |
| Camphill Community Glencraig | Holywood | A rating |
| Camphill Community Holywood | Holywood | A rating |
| Camphill Community Mourne Grange | Kilkeel | A rating |
| Camphill Devon Community | Buckfastleigh | A rating |
| Camphill Devon Community Ltd | Buckfastleigh | A rating |
| Camphill Milton Keynes Communities | Milton Keynes | A rating |