| Wings Travel Management Ltd (t/a Wings Global Travel) | London | A rating |
| WINIT (UK) LIMITED | Tamworth | A rating |
| Wink Brow Bar Limited | Portsmouth | A rating |
| Winking Prawn Ltd | Salcombe | A rating |
| Winkleigh Timber Limited | Devon | A rating |
| Winkreative Limited | London | A rating |
| WINKS HAIR AND BEAUTY (WALSALL) LIMITED | WALSALL | A rating |
| Winkworth Franchising Ltd | London | A rating |
| Winkworth Machinery Ltd | Basingstoke | A rating |
| Winley Limited | Birmingham | A rating |
| WINLIFE LTD | Ilford | A rating |
| Winlift Solutions Ltd | CORBY | A rating |
| Winmac Properties Limited | London | A rating |
| Winmark Limited | London | A rating |
| WINMAX LONDON LTD | London | A rating |
| Winmill Limited | Ipswich | A rating |
| Winn & Coales (Denso) Limited | London | A rating |
| Winn Homes Ltd | Manchester | A rating |
| Winn Solicitors Limited | Newcastle Upon Tyne | A rating |
| Winncare PAC | Bradford | A rating |
| WINNER FOODS LIMITED | London | A rating |
| Winner???¢????????s family chapel international | Telford | A rating |
| WINNERS RETAIL LTD | Surrey | A rating |
| Winnie Care (Macclesfield) Ltd | Saltburn-by-the-Sea | A rating |
| WINNINGTEMP LIMITED | LONDON | A rating |
| Winnow Solutions Limited | London | A rating |
| WINNSCARE PVT LIMITED | BOUGHTON | A rating |
| Winparks Practice Ltd | Hounslow | A rating |
| WINPOWER DIRECT LTD | Hounslow | A rating |
| WinPure | Reading | A rating |
| Winsbeach Children's Home Ltd | London | A rating |
| Winscombe care home | Fareham | A rating |
| Winsford Care Ltd | Clacton-on-Sea | A rating |
| Winsford CP Pizza Ltd | Winsford | A rating |
| WINSFORD KITCHEN LTD T/A MILLENNIUM BALTI | WINSFORD | A rating |
| Winside Care | London | A rating |
| Winsley Cricket Club | Winsley | A rating |
| WINSLOW RESTAURANTS LTD T/A CHUTNEY JACKS | Buckingham | A rating |
| Winslow Tandoori Limited | Welwyn Garden City | A rating |
| WINSOME FASHION LIMITED | BARKING | A rating |
| Winsor Care Services Limited | Addlestone | A rating |
| Winsor International Limited | London | A rating |
| WINSOR SKILLS TRAINING LTD | Birmingham | A rating |
| Winsover Limited | Lincolnshire | A rating |
| WINSPIRE LTD | STAINES | A rating |
| WINSPIRE SOLUTIONS UK LIMITED | London | A rating |
| Winstall Ltd | preston | A rating |
| WINSTAR LIMITED | PRESTON | A rating |
| Winston & Strawn London | London | A rating |
| WINSTON ACCOUNTANCY LTD | London | A rating |
| WINSTON RETAIL LTD | LEEDS | A rating |
| Winston Rose Solicitors LLP | London | A rating |
| Winston Solicitors (UK) Limited | LEEDS | A rating |
| Winston Taylor International LLP | London | A rating |
| Winston Taylor UK LLP | London | A rating |
| Winstree Medical Practice | Colchester | A rating |
| WINT-WI UK LIMITED | LONDON | A rating |
| WINTAK LTD | Bury | A rating |
| Wintech International | Aldermaston | A rating |
| Wintech Limited | Wolverhampton | A rating |
| Winteg Limited | London | A rating |
| Winter Hill Pub Co. Limited T/A The Blind Beggar | London | A rating |
| Winter Molyneux and Vallis | Oxford | A rating |
| Winter Restaurants Limited | London | A rating |
| WINTERBOURNE LOCAL STORE LIMITED | BRISTOL | A rating |
| Winterfell Care Home Ltd | Nottingham | A rating |
| Wintergreen Advisors Limited (T/A Trotter) | London | A rating |
| Winteringham Fields Ltd | Winteringham | A rating |
| Wintermute Trading Limited | Cheshire | A rating |
| Winterton Bros Limited | Little Marlow | A rating |
| Winterton Medical Practice | Scunthorpe | A rating |
| Winton Capital Management Ltd | London | A rating |
| Winton Specsavers Limited T/A Specsavers Opticians | Winton | A rating |
| WINTONS REAL ESTATE LTD | London | A rating |
| Winusman Care Ltd | Birmingham | A rating |
| Winvo Limited | London | A rating |
| WINWAY COLLEGE OF BUSINESS & TECHNOLOGY LIMITED | Croydon | A rating |
| Winyates Health Centre | Redditch | A rating |
| Winzor Pharmaceuticals UK Ltd | Chesham | A rating |
| WIOSS WITRON On Site Services GmbH | Keele | A rating |
| Wipac Technology Limited | Buckingham | A rating |
| Wipak UK Ltd | Welshpool | A rating |
| Wipotec OCS Ltd | Carterton | A rating |
| Wipro Appirio UK Limited | London | A rating |
| WIPRO CONNECTED SERVICES UK LIMITED | Reading | A rating |
| Wipro Limited | London | A rating |
| WIR LTD T/A CHURCH PHARMACY | Weybridge | A rating |
| Wire Collective | London | A rating |
| WIRE GLOBAL LTD | London | A rating |
| Wirebox | Watford | A rating |
| Wired Media Ltd | Bristol | A rating |
| WIREDSCORE UK LIMITED | London | A rating |
| Wirehouse Employer Services Limited | Warrington | A rating |
| Wireless Coverage Ltd | Caldicot | A rating |
| Wireless Excellence Limited | Oxford | A rating |
| Wireless Logic Ltd | Reading | A rating |
| Wires & Wireless Ltd | Whiltshire | A rating |
| Wirex Enterprises Ltd | Rayleigh | A rating |
| Wirex Holdings Limited | London | A rating |
| Wirksworth & MIddleton Cricket Club | Matlock | A rating |
| Wirral Christian Centre Trust Ltd | Birkenhead | A rating |
| Wirral Community Health and Care NHS Foundation Trust | Birkenhead | A rating |
| Wirral Convenience Direct Ltd | Wirral | A rating |
| Wirral Council | Wirral | A rating |
| WIRRAL DEEN CENTRE | BIRKENHEAD | A rating |
| Wirral Lifestart Living Services Limited | Prenton | A rating |
| Wirral Multicultural Organsiation (WMO) | Birkenhead | A rating |
| Wirral Tandoori Restaurant Limited | Wirral | A rating |
| Wirral University Teaching Hospitals NHS Trust | Bebington | A rating |
| Wirrelderly Ltd | Wirral | A rating |
| Wirtgen Limited | Newark | A rating |
| Wirth Research Limited | Thame | A rating |
| WIS Accountancy Ltd | Faversham | A rating |
| WIS Contractor Mortgages Ltd | Ashford | A rating |
| Wisbech Grammar School Ltd | Wisbech | A rating |
| Wisbech Specsavers Ltd | Wisbech | A rating |
| Wisbech Town Cricket and Hockey Club | Wisbech | A rating |
| Wiscol Limited | London | A rating |
| Wisdom Global Ltd t/a The Wisdom Council | London | A rating |
| WISDOM HOUSE | THURROCK | A rating |
| WISDOM PROPERTY DEVELOPMENTS LIMITED | Wisbech | A rating |
| Wisdom Support Limited | Sidcup | A rating |
| WISDOMTREE IRELAND LIMITED | Soho, London | A rating |
| WISE | High Wycombe | A rating |
| WISE BEST LTD | LONDON | A rating |
| Wise Children Limited | Temple Campus, Lower Approach Road | A rating |
| WISE CLUBS AND ENTERTAINMENT LTD | London | A rating |
| Wise Computer Ltd | Leicester | A rating |
| Wise Financial Services Ltd | Bristol | A rating |
| WISE HAULIER | LONDON | A rating |
| Wise Home Care Limited | Derby | A rating |
| WISE K9 LTD | Frimley | A rating |
| Wise Legal Limited | London | A rating |
| WISE LIFE COUNSELING LTD | London | A rating |
| Wise Living Limited | Bury | A rating |
| Wise Look Traders Ltd | Rochdale | A rating |
| Wise Masterbuilders Childcare Limited | Manchester | A rating |
| Wise Music Group Limited | London | A rating |
| Wise Payments Limited | London | A rating |
| Wise Pharmacies Limited | Manchester | A rating |
| Wise Productions UK LTD | London | A rating |
| Wise Properties MCR Ltd | Manchester | A rating |
| Wise Technical Limited | Sispon | A rating |
| Wise Utilities Ltd | Manchester | A rating |
| WISE WAVE VENTURES LTD | Chertsey | A rating |
| WiseAlpha Technologies Limited | London | A rating |
| Wisebros Industrial Solutions Limited | London | A rating |
| Wisecars LTD | Uxbridge | A rating |
| WiseEnergy (Great Britain) Limited | London | A rating |
| WISEENERGY CONSULTANCY LIMITED | Leicester | A rating |
| Wisefull Education Limited | Enfield | A rating |
| WISEGATE INVESTMENT PARTNERS LTD | London | A rating |
| WISEHART LIMITED | London | A rating |
| Wisei Accountants Global LTD. | Morden | A rating |
| Wiselinx Executive Education Company Limited | London | A rating |
| Wisely Ventures Ltd | Chichester | A rating |
| Wiseman Property Ltd | London | A rating |
| WISEPATH RETAIL LTD | Linwood, | A rating |
| Wiser Medicines Ltd | London | A rating |
| Wiserfunding Limited | London | A rating |
| WISESupport Ltd | New Malden | A rating |
| Wisetax Accountants | SLOUGH | A rating |
| WiseTech Global UK Limited | London | A rating |
| Wish Max Commodities Ltd | Harrow | A rating |
| Wish Oriental Cooperation Ltd | London | A rating |
| Wish Tours Ltd | Manchester | A rating |
| WISH4EVR1 Ltd | London | A rating |
| WISHART GROUP NI LTD | BALLYCLARE | A rating |
| Wishaw Chiropractic Associates Ltd t/a Maple Clinics | Wishaw | A rating |
| Wishful Thinking Ltd. | London | A rating |
| Wishmoor Ltd | Bromsgrove | A rating |
| WISHWISE LTD | Manchester | A rating |
| Wismettac Harro Foods Ltd | Chessington | A rating |
| WISON OFFSHORE & MARINE (HONG KONG) LIMITED - UK Establishment | London | A rating |
| Wisphome Limited trading as Mayday Plant Hire | Thornton Heath | A rating |
| WISS, JANNEY, ELSTNER LIMITED | London | A rating |
| Wissen Technology Limited | Harrow | A rating |
| Wistaria & Milford Surgeries | Lymington | A rating |
| Wisteria Care Agency | Sutton Coldfield | A rating |
| Wisteria House Residential Home T/A Wisteria Care | Gillingham | A rating |
| WISTERIA LODGE LTD | WATERLOOVILLE | A rating |
| WISTERIA RESTAURANTS LTD T/AS SINDHU | MARLOW | A rating |
| Witbe Ltd | London | A rating |
| WITCHFORD VILLAGE STORE LTD | Ely | A rating |
| Witcombe Farm Partners | Martock | A rating |
| Witekio Limited | Bristol | A rating |
| With Intelligence Limited | London | A rating |
| With Public Realtions Ltd. | London | A rating |
| With Route Limited | London | A rating |
| With-you Consultancy Ltd | St Helens | A rating |
| Witham Archaeology Limited | Lincoln | A rating |
| Witham Cricket Club | Witham | A rating |
| Witham Express Dry Cleaner | WITHAM | A rating |
| Withcent UK Ltd | Coventry | A rating |
| Witherford Watson Mann Architects | London | A rating |
| Withers & Rogers LLP | London | A rating |
| Withers LLP | London | A rating |
| Witherslack Group Limited | Lupton, Carnforth | A rating |
| WITHGILL FARM LIMITED | Lancashire | A rating |
| WITHIN AGENCY LIMITED | BARNET | A rating |