| White Moss Consulting LTD | Ponteland | A rating |
| WHITE OAK CARE LIMITED | London | A rating |
| WHITE OCTOBER EVENTS LTD | Crickhowell | A rating |
| WHITE ORCHID DENTAL AND WELLBEING CLINIC LIMITED | NOTTINGHAM | A rating |
| White Paper Games Ltd | Salford | A rating |
| White Pearl Care Ltd | Blackburn | A rating |
| White Pepper Cookery Limited | Poole | A rating |
| White Powick Ltd T/A Pepes Piri Piri | Luton | A rating |
| White Rabbit Hospitality Limited | London | A rating |
| White Rabbit Ink Ltd | Bromley | A rating |
| White River Homecare | St Austell | A rating |
| WHITE ROCK DEVELOPMENT LIMITED | Hounslow, | A rating |
| White Rock Nursing Home Ltd | Hampshire | A rating |
| White Rose Academies Trust | Leeds | A rating |
| White Rose Bridalwear Limited | London | A rating |
| White Rose Dental Practice Ltd | Camborne | A rating |
| White Rose Dental Studio | London | A rating |
| White Rose Education Limited | Halifax | A rating |
| WHITE ROSE GATLEY LIMITED T/A gatley tandoori takeaway | Cheadle | A rating |
| WHITE ROSE HOUSE CARE HOME LIMITED | HOLMFIRTH | A rating |
| White Rose Pharmacy Services Ltd | Dewsbury | A rating |
| White Rose Restaurant Ltd | London | A rating |
| White Skye Limited | Portadown | A rating |
| WHITE SNOW ADS LTD. | London | A rating |
| White Spider Media Ltd | London | A rating |
| White Star Capital United Kingdom Limited | London | A rating |
| White Steel Metal Works Ltd | London | A rating |
| White stuff | LONDON | A rating |
| White Summit Capital Advisors Ltd | London | A rating |
| White Tiger Coffee Ltd | Surrey | A rating |
| WHITE TOWN LIMITED T/A WHITE TOWN LAUNDRY | ESSEX | A rating |
| WHITE VILLA LIMITED | London | A rating |
| White-eagles Educational Services Limited | Nottingham | A rating |
| White-Red Limited | London | A rating |
| White's Foodservice Equipment Ltd | Redditch | A rating |
| Whitebottom Farm Estates Ltd | Stockport | A rating |
| Whitebox Advisors London, LLP | London | A rating |
| WHITECHAPEL TEA HOUSE LIMITED | London | A rating |
| Whitecliff Management Corporation Limited | London | A rating |
| Whitecliffe Electrical Distribution Ltd | Bury | A rating |
| Whitecrest Care Services Limited | Sheffield | A rating |
| Whitecroft Indian Restaurant Ltd T/A The Whitecroft | Accrington | A rating |
| WHITECROFT LIGHTING LIMITED | ASHTON-UNDER-LYNE | A rating |
| WHITECROSS MINI MARKET LIMITED | Linlithgow | A rating |
| Whitefield Academy Trust | Walthamstow | A rating |
| Whitefield School | London | A rating |
| Whiteforce Global Ltd | Harrow | A rating |
| WHITEFOX PUBLISHING LIMITED | London | A rating |
| Whitefox Technologies Limited | London | A rating |
| Whitefriars Green Practice | Perth | A rating |
| Whitegate & Co Accountants Ltd | Manchester | A rating |
| Whitegate Management Advisors (UK) Limited | London | A rating |
| Whitegates Care Home | BROMYARD | A rating |
| Whitehall Care Limited | Norwich | A rating |
| WHITEHALL HOTEL LIMITED | London | A rating |
| WHITEHALL LOCAL LIMITED | Bristol | A rating |
| Whitehall Primary School | London | A rating |
| WHITEHALL PROPERTY MANAGEMENT LTD | London | A rating |
| Whitehaven Care Home | Radstock | A rating |
| Whitehaven Cricket Club | Whitehaven | A rating |
| Whitehaven Rugby League 2010 LTD | Whitehaven | A rating |
| Whitehaven Trust Ltd | Bristol | A rating |
| WHITEHAWK CAFE AND FOOD LIMITED | BRIGHTON | A rating |
| Whitehead-Ross Education and Consulting Ltd | Neath | A rating |
| Whiteheath Junior School | Ruislip | A rating |
| Whitehills Care Ltd | Walton-On-Thames | A rating |
| Whitehouse Communications Limited | London | A rating |
| WHITELEGG LIMITED | Kent | A rating |
| Whitelegg Machines Ltd | Herne Bay | A rating |
| Whiteley Medical Instruments Limited | Guildford | A rating |
| Whiteley Village Vet Centre Ltd | Fareham | A rating |
| Whitelink Seafoods Ltd | Fraserburgh, Aberdeenshire | A rating |
| WHITELION TENBY LIMITED | Tenby | A rating |
| Whitelodge Alveley Limited | Coventry | A rating |
| Whitelodge Care Home | Emsworth | B rating |
| Whitemoor Medical Centre | Belper | A rating |
| Whitemountain Quarries Lt | Mallusk | A rating |
| whitemud ironworks (uk) ltd | Hull | A rating |
| WHITEN DRY CLEANERS LTD | Longfield | A rating |
| Whitepaperco Limited | London | A rating |
| whitepill ltd t/a Victoria chemist | middlesbrough | A rating |
| WHITEROSE CATERING LIMITED | Dewsbury | A rating |
| Whiteshield Partners Limited | London | A rating |
| Whitestone Accounting Ltd | Bristol | A rating |
| WhitestoneLodge Care Home | Liverpool | A rating |
| Whitez Snooker Ltd | Swansea | A rating |
| Whitezip Limited | London | A rating |
| WHITFIELD CIVIL ENGINEERING LIMITED | Surbiton | A rating |
| Whitfield Foods Ltd | Dover | A rating |
| Whitfield Portfolio Limited | Cambridge | A rating |
| Whitfield Service Station Limited | Dover | A rating |
| Whitford News | Chessington | A rating |
| WHITGIFT NEWS | SOUTH CROYDON | A rating |
| Whithorn Estate Ltd | Wormley | A rating |
| Whithurst Park Farms Ltd | Kirdford | A rating |
| Whitley House Surgery | Chelmsford | A rating |
| Whitley Tandoori (NE) LTD | Whitley Bay | A rating |
| WHITMORE CRICKET CLUB | NEWCASTLE UNDER LYME | A rating |
| Whitmore Reans Plumbers Merchants | WEST MIDLANDS | A rating |
| Whitmore Vale Housing Association | Hindhead | A rating |
| Whitney Motorsport Racing | Mansfield | A rating |
| Whitsbury Farm & Stud Limited | Fordingbridge | A rating |
| Whitstable Cricket Club | Whitstable | A rating |
| Whitstable Medical Practice | Whitstable | A rating |
| Whittaker and Watt Architects Ltd | Newtownabbey | A rating |
| Whittaker Engineering Stonehaven Ltd | Stonehaven | A rating |
| Whittan Industrial Limited | Telford | A rating |
| Whittard Trading Limited/ trading as Whittard of Chelsea | Abingdon | A rating |
| WHITTINGHAM, CASSERLEY AND CHANDY | middleton | A rating |
| Whittington Health | London | A rating |
| Whittington Moor Surgery | Chesterfield | A rating |
| Whittington's Guest House | Rochdale | A rating |
| WHITTLEFORD SERVICE STATION LIMITED | Whittleford, Nuneaton | A rating |
| Whittlesey Pharmacy | Whittlesey | A rating |
| Whitworth Chemists Ltd | Scunthorpe | A rating |
| Whitworth Veterinary Practice Ltd | Felixstowe | A rating |
| Whiz Management Solutions Limited | Northwood | A rating |
| Whiz trade limited | London | A rating |
| Whizap Limited | London | A rating |
| WHIZZ EDUCATION LIMITED | London | A rating |
| Whizztechi | Reading | A rating |
| WHMM LTD | Reading | A rating |
| Who Cares? Scotland | Glasgow | A rating |
| Who's Who Ltd | LEICESTER | A rating |
| Whoagrees Limited trading as Beat | London | A rating |
| WhoFoundWho Ltd | London | A rating |
| Whole Child Therapy Ltd | London | A rating |
| WHOLE COUNTRY HOME CARE LIMITED | Melton Mowbray | A rating |
| Whole Food Retail Ltd | London | A rating |
| Whole Ice Ltd | Deeside | A rating |
| WHOLE SPICES LTD | BILSTON | A rating |
| Wholefood Earth Ltd | Ramsgate | A rating |
| Wholefoods Glasgow Limited | Glasgow | A rating |
| WHOLESALE CATERING LTD | Croydon | A rating |
| Wholesale Home Textiles Ltd T/A British Wholesales | Bolton | A rating |
| WHOLESALE INN LIMITED | MANCHESTER | A rating |
| WHOLESALED LTD | Manchester | A rating |
| WHOOPS WHEEL FIX IT LIMITED | Enfield | A rating |
| Whozoo RE Limited | London | A rating |
| WHP Telecoms Ltd | Warrington | A rating |
| WHS C S Ltd | Sutton Coldfield | A rating |
| WHS Plastics Larkhall Ltd | Larkhall | A rating |
| WHScott & Son Engineers limited | Wickwar, Bristol | A rating |
| WHUMZEE GROUP LTD | Sheffield | A rating |
| Why Not Management Limited | Redditch | A rating |
| WHY U DESIGN LTD | London | A rating |
| Whyaye Ltd. | Newcastle Upon Tyne | A rating |
| Whyte and Mackay Limited | Glasgow | A rating |
| WHYTLEAF GRILL & BAR LTD T/A WHYTELEAFE GRILL & BAR LTD | CATERHAM | A rating |
| WIA SYSTEMS LTD | Amersham | A rating |
| Wick Dental Practice | Wick | A rating |
| Wick Entertainment Limited | Manchester | A rating |
| Wick Specsavers Limited T/A Specsavers Opticians | Wick | A rating |
| WICKED NIGHTS LIMITED | Manchester | A rating |
| Wickenstones Ltd | Leek | A rating |
| Wickersley Old Village Cricket Club | Rotherham | A rating |
| Wickes Building Supplies Ltd | Watford | A rating |
| Wicket Electronic Limited | London | A rating |
| Wickford Cricket Club | Wickford | A rating |
| Wickham Care Company Limited | Saxmundham | A rating |
| Wickham Park Surgery | West Wickham | A rating |
| Wickman Coventry Ltd | Coventry | A rating |
| Wicks and Wilson Limited | Basingstoke | A rating |
| Wickwar Wessex Pub Co Ltd | Wotton U Edge | A rating |
| WICLAN LIMITED | Manchester | A rating |
| WIDA GROUP LIMITED | NOTTINGHAM | A rating |
| Widan Ltd t/a Grill Shack and Tiki Bar | London | A rating |
| WIDDICOMBE LTD T/A WIDDICOMBE CHEMISTS | LONDON | A rating |
| Widdington Recycling Ltd | Widdington | A rating |
| Wide Fit Shoes Limited | Harrow | A rating |
| WIDE SOLUTION LTD | Manchester | A rating |
| Wide Wings Tiles Ltd | Leeds | A rating |
| Widem UK Limited | Whitfield, DOVER | A rating |
| Wideopen Medical Centre | Newcastle upon Tyne | A rating |
| Wideplank (London) Ltd | London | A rating |
| Wideway Care Limited | Barking | A rating |
| WidiloLtd | London | A rating |
| WIDLEY EXPRESS | Hampshire | A rating |
| Widnes Post Office | Widnes | A rating |
| Widnes Vikings Rugby League Club Limited | Widnes | A rating |
| WIDNEY DENTAL CARE | SOLIHULL | A rating |
| Widyan Food Limited | Walthamstow | A rating |
| WIE LTD | Cardiff | A rating |
| Wiedemann Restaurants Ltd Trading as Pompette | Oxford | A rating |
| Wieden & Kennedy UK Ltd | London | A rating |
| Wieland Metals Birmingham | Birmingham | A rating |
| WieldMore Investment Management Limited | London | A rating |
| Wiener Holocaust Library | London | A rating |
| Wienerberger Ltd | Cheadle | A rating |
| WIERSHOLM UK LIMITED | London | A rating |
| Wifinity Limited | Southgate | A rating |
| WIFIRST UK | London | A rating |
| Wigan & Leigh College | Wigan | A rating |
| Wigan and Leigh Hospice | Wigan | A rating |
| Wigan Athletic AFC Limited | Wigan | A rating |
| Wigan Borough Federated Healthcare Ltd | Wigan | A rating |
| WIGAN LEO'S LIMITED | Wigan | A rating |
| Wigan Rugby League Club | Wigan | A rating |
| Wigan Sports Club | Wigan | A rating |
| Wigen Coffee LTD | SOUTHEND ON SEA | A rating |