| Wesley Hall community centre | Leicester | A rating |
| Wesley House | Cambridge | A rating |
| WeSoar Limited | London | A rating |
| Wesser Ltd | Letchworth Garden City | A rating |
| Wessex Archaeology | Salisbury | A rating |
| Wessex Care Ltd | Salisbury, Wiltshire | A rating |
| Wessex Cars Winchester Limited | Southampton | A rating |
| Wessex Children's Hospice Trust | Sutton Scotney | A rating |
| Wessex Grove Limited | London | A rating |
| Wessex Institute of Technology | Southampton | A rating |
| Wessex internet | Blandford | A rating |
| Wessex Internet Limited | Blandford | A rating |
| Wessex Learning Trust | Cheddar | A rating |
| Wessex Partners Limited | London | A rating |
| Wessex Pet Care LTD | Southampton | A rating |
| Wessex Pharmacies Limited | Alresford | A rating |
| Wessex Resins & Adhesives | Romsey | A rating |
| Wessex Water Services Ltd | Bath | A rating |
| West 1 Castings Limited | London | A rating |
| West 1 Health | London | A rating |
| West 10 Ltd | London | A rating |
| WEST 2 SUPERMARKET LTD | LONDON | A rating |
| WEST 4 PLUMBING & HEATING LTD | London | A rating |
| West 6 Auto Centre Limited | West Byfleet | A rating |
| West Acton Superstores Limited | Chipping Norton | A rating |
| West African Development | Ashton Under Lyne | A rating |
| WEST AND HUNTER LIMITED | London | A rating |
| West Ardnamurchan Community Development Company | Acharacle | A rating |
| West Atlantic UK Limited | Castle Donington | A rating |
| West Atlantic UK Ltd | Castle Donington | A rating |
| West Bars Tandoori | Chesterfield | A rating |
| West Base Electronics Ltd | Ruislip | A rating |
| West Berkshire District Council | Newbury | A rating |
| West Best 10 Limited | Southall | A rating |
| WEST BIRD LTD | BIRMINGHAM | A rating |
| West Bridgfordians Cricket Club | Nottingham | A rating |
| West Bromwich Albion FC | West Bromwich | A rating |
| West Bromwich Building Society | West Bromwich | A rating |
| West Buckland Bloodstock Ltd | Somerset | A rating |
| West Buckland School | Barnstaple | A rating |
| West Chiltington and Thakeham Cricket Club | West Chiltington | A rating |
| West Chiropractic (Addlestone) Ltd | Addlestone | A rating |
| West Chiropractic Limited | West Byfleet | A rating |
| WEST COAST RESTAURANT LIMITED | Glasgow | A rating |
| West Coast Salmon Products Limited | Duns | A rating |
| West Coast Sea Products Ltd | Kirkcudbright | A rating |
| West Common Lane Teaching Practice | Scunthorpe | A rating |
| WEST CONTROL SERVICES (SCOTLAND) LIMITED | Glasgow | A rating |
| West Country Concrete Products | Holsworthy | A rating |
| West Cross Hotel Ltd. | SWANSEA | A rating |
| West Dean College - The Edward James Foundation Ltd | CHICHESTER | A rating |
| West Dental Limited | Glasgow | A rating |
| west derby medical centre | Liverpool | A rating |
| West Design Products Limited | Folkestone | A rating |
| WEST DRAYTON POST OFFICE | WEST DRAYTON | A rating |
| West Dryaton Food & Wine | West Drayton | A rating |
| WEST EARLHAM DENTAL HEALTH PRACTICE LIMITED | Norfolk | A rating |
| West East Ltd | LONDON | A rating |
| West End Barbers | Halifax | A rating |
| West End Cafe | Carmarthenshire | A rating |
| West End Convenience Store | Kemsing | A rating |
| West End Dental Holdings Limited | Colwyn Bay | A rating |
| West End Farm MOT Ltd | Bracknell | A rating |
| West End Manse Dental Care Limited | Haverhill | A rating |
| West End Osteopathy | London | A rating |
| WEST END RETAIL LTD | London | A rating |
| West End Road Surgery | Southampton | A rating |
| West End Studios Ltd | Eastbourne | A rating |
| West end surgery | Northolt | A rating |
| West End Tails Ltd | London | A rating |
| West Face School of Business Ltd | London | A rating |
| WEST FISH BAR LIMITED | Leicester | A rating |
| West Fraser Europe Limited | Cowie | A rating |
| West Galdenoch Dairy Ltd | Stranraer | A rating |
| west granton dental care | Edinburgh | A rating |
| WEST GREEN FOOD & WINE LTD | Crawley | A rating |
| West Green Group Ltd | London | A rating |
| West Green House Opera Ltd | Alton | A rating |
| West Green Surgery | Haringey | A rating |
| West Group Technical Services | Glasgow | A rating |
| WEST HAM UNITED FOOTBALL CLUB | LONDON | A rating |
| West Ham United Women FC Ltd | London | A rating |
| West Harrow Garage Limited | Harrow | A rating |
| WEST HATCH HIGH SCHOOL ACADEMY TRUST | Chigwell | A rating |
| West Hertfordshire Teaching Hospitals NHS Trust | Watford | A rating |
| West Herts College | Watford | A rating |
| West Herts Sports Club | Watford | A rating |
| West Hill Care Home Ltd | Dratford | A rating |
| West Hill Place (Zebra Care Homes Ltd) | Woburn Sands | A rating |
| WEST HOUSE CARE HOME LIMITED | DURHAM | A rating |
| West Kent Primary Care Community Interest Company | Pembury | A rating |
| West Lakeland Veterinary Group | Egremont | A rating |
| West Lancashire Group Ltd | Poulton-Le-Fylde | A rating |
| WEST LDN CONSTRUCTION LTD | West Drayton | A rating |
| West Leeds PCN Ltd | Pudsey | A rating |
| West Lodge Care Home (Nottingham) Ltd. | Nottingham | A rating |
| West London Builders Merchants Limited | Hounslow | A rating |
| West London Business | London | A rating |
| WEST LONDON CITY LETS LTD | NORTH HARROW | A rating |
| West London Foods Covent Garden Ltd | Middlesex | A rating |
| West London Foods Ltd | Harrow | A rating |
| WEST LONDON HOME CARE LIMITED | London | A rating |
| West London Islamic Centre | Greenford | A rating |
| West London NHS Trust | Southall | A rating |
| WEST LONDON PENTECOSTAL CHURCH | HOUNSLOW | A rating |
| West London Professional College Ltd | Hounslow | A rating |
| West London School LTD | London | A rating |
| West London Solicitors Limited | Southall | A rating |
| WEST LONDON SOLUTIONS LIMITED | London | A rating |
| West London Speech and Language Therapy Limited | London | A rating |
| West London Students' Union | Ealing | A rating |
| West Lothian Chiropractic | Uphall | A rating |
| West Lothian Council | Livingston | A rating |
| West Mid Healthcare UK Limited | Stourbridge | A rating |
| West Midland Services limited TA Face Aesthetic Clinic | Solihull | A rating |
| West Midlands Academy Trust | Birmingham | A rating |
| West Midlands Accountants Ltd | Birmingham | A rating |
| West Midlands Ambulance Service University NHS Foundation Trust | Brierley Hill | A rating |
| West Midlands Combined Authority | Birmingham | A rating |
| West Midlands Double Glazing Limited | West Bromwich | A rating |
| West Midlands Gas Limited | Birmingham | A rating |
| West Midlands Growth Company | Birmingham | A rating |
| West Midlands Home Improvements Limited | West Bromwich | A rating |
| WEST MIDLANDS JAPAN MOTORS LTD | Birmingham | A rating |
| West Midlands Steel Ltd | Warwick | A rating |
| West Monroe Partners Limited | London | A rating |
| WEST MOON LTD T/A THE FUSION | BEXLEY | A rating |
| West Motor Co Ltd | London | A rating |
| WEST MOTORS LONDON LTD | Uxbridge | A rating |
| West NAH Professionals LLP | Paisley | A rating |
| West Nine Construction Ltd | London | A rating |
| West Norfolk Academies Trust | Kings Lynn | A rating |
| West Northamptonshire Council | Northampton | A rating |
| West Nottinghamshire College | Mansfield | A rating |
| WEST OAK JOINERY LTD. | LETCHWORTH GARDEN CITY | A rating |
| West of England Insurance Services (Lux) SA | London | A rating |
| West of Scotland Cricket Club | Glasgow | A rating |
| West of Scotland Housing Association Limited | Glasgow | A rating |
| West One Manor Hotel Ltd | Northampton | A rating |
| West Park Hotel Pvt Ltd | Clydebank | A rating |
| WEST PARK HOUSE LIMITED | Leslie | A rating |
| West park Mini Mart | Maidstone | A rating |
| West Pier Studio Ltd | Brighton | A rating |
| West Point Medical Centre | Manchester | A rating |
| West Quay Medical Centre | BARRY | A rating |
| West Rainton Surgery | Houghton le Spring | A rating |
| West Ridge Veterinary Practice Ltd | Tiverton | A rating |
| West Road Medical Centre | Newcastle | A rating |
| West Scottish Lamb Ltd | Carlisle | A rating |
| West Somerset Healthcare | Taunton | A rating |
| West Southampton Medical Group | Southampton | A rating |
| West Suffolk College | Bury St Edmunds | A rating |
| West Suffolk NHS Foundation Trust | Bury St Edmunds | A rating |
| West Surrey Homes Limited | London | A rating |
| West Sussex Care Ltd | chichester | A rating |
| West Sussex County Council | Chichester | A rating |
| WEST TECH CAPITAL LTD | London | A rating |
| West Thames College | Isleworth | A rating |
| West Thurrock Academy | Grays | A rating |
| WEST TOP BUILDERS LIMITED | Birmingham | A rating |
| West Tower Country House | Aughton | A rating |
| WEST TWO PROPERTIES LIMITED | London | A rating |
| West vale barbers Ltd | Halifax | A rating |
| West view fish shop | Hartlepool | A rating |
| West View Millennium Surgery | Hartlepool | A rating |
| West View Residential Care Home | Leicester | A rating |
| West Villa Residential Home Ltd | Wakefield | A rating |
| West Wales Dental Implant Clinic Limited | Carmarthen | A rating |
| West Wales Islamic Cultural Association | Carmarthen | A rating |
| West Wallasey Car Hire Limited | Wallasey | A rating |
| West Wickham Chiropractic Clinic | West Wickham | A rating |
| West Wight Medical Practice | Freshwater | A rating |
| West Winch Village Store | King's Lynn | A rating |
| West Winchester Property and Farms Ltd | Kent | A rating |
| WEST WORTHING PO LTD | WORTHING | A rating |
| West Yorkshire Combined Authority | Leeds | A rating |
| West Yorkshire Fire and Rescue Service | Bradford | A rating |
| WEST-MID RETAIL LIMITED | WORCESTER | A rating |
| Westacre Nursing Home | Winchester | A rating |
| Westacres Care Home | Glasgow | A rating |
| Westade Solutions Ltd | South Croydon | A rating |
| Westbank Care Home Limited T/A Westbank Nursing Home | Troon | A rating |
| WESTBASE TECHNOLOGY LIMITED | CALDICOT | A rating |
| Westbourne Grove Church | London | A rating |
| Westbourne Grove Dental | LONDON | A rating |
| Westbourne House School | Chichester | A rating |
| Westbourne Medical Centre | Bournemouth | A rating |
| Westbourne Medical Centre | Middlesbrough | A rating |
| Westbourne News | Hardwicke | A rating |
| Westbourne Pharmacy Limited | Luotn | A rating |
| Westbourne Pharmacy Ltd | Luton | A rating |
| Westbourne School | Penarth | A rating |
| Westbourne School Trust Limited | Sheffield | A rating |
| Westbourne Spice Limited (T/a Spice Cottage) | Westbourne | A rating |
| Westbourne Spice Ltd | Leeds | A rating |
| Westbourne Surgery | Huddersfield | A rating |
| Westbourne Tandoori Dorset Ltd | Bournemouth | A rating |
| WestBridge Business Immigration Ltd | London | A rating |
| Westbridge FoodsLtd | Malvern | A rating |
| Westbridge Renewable Energy Asset Management Limited | London | A rating |