| Best At Home Adult Care Private Limited | Altrincham | A rating |
| Best At Home Domiciliary Care Services Ltd | Mitcham | A rating |
| BEST AT LESS STORE LTD | London | A rating |
| BEST AUTOCENTRES LTD | Didcot | A rating |
| BEST BAGEL LIMITED | LONDON | A rating |
| BEST BARGAIN SEWING SUPPLIES LTD | Salford | A rating |
| Best Bargains Direct Ltd | Luton | A rating |
| BEST BEDDING LIMITED | Manchester | A rating |
| Best Bookkeeping Limited | London | A rating |
| BEST BRAND FOOD & DRINKS (BBFD) LIMITED T/A BRITISH TIGER | Stockton | A rating |
| BEST BUDZ LTD | Ruislip | A rating |
| Best Builders Ltd | Manchester | A rating |
| BEST BUILDING WORK LTD | DARTFORD | A rating |
| BEST BUY DEAL LIMITED | London | A rating |
| Best Buy Enterprise LTD | Upminster | A rating |
| BEST BUY LOCAL LTD | Dagenham | A rating |
| best buy properties ltd | Middlesbrough | A rating |
| Best Buy UK Ltd | Middlesbrough | A rating |
| BEST C.VEG LIMITED | London | A rating |
| Best Care 4 U Ltd | Stanmore | A rating |
| BEST CARPETS LTD | LONDON | A rating |
| BEST CASK LTD | Wexham, Slough | A rating |
| BEST CHEF CUISINE LTD T/A Heera Indian Restaurant | Renfrew | A rating |
| Best Choice Accountancy Ltd | Bromley | A rating |
| BEST CHOICE CARE LIMITED | Slough | A rating |
| Best Choice Catering Ltd | West Bromwich | A rating |
| Best Choice Garage Doors | Newtownbutler | A rating |
| Best Choice Garage Doors Ltd. | Newtownbutler | A rating |
| BEST CHOICE HIRE LTD | London | A rating |
| Best Choice Homes Ltd | Burnley | A rating |
| Best Choice One Ltd | London | A rating |
| BEST CLEANING SOLUTIONS | Slough | A rating |
| BEST COMMUNITY CHARITY | Leicester | A rating |
| Best Curry In Kent Ltd t/a Al Amin Tandoori | London | A rating |
| Best Curry Limited T/A Shimla Restaurant | Glasgow | A rating |
| BEST DEAL SHIPPING LTD | LEICESTER | A rating |
| BEST DEALS ONLINE LIMITED | CHELMSFORD | A rating |
| Best Eves Ltd T/A Crystals of London | Park Royal, London | A rating |
| Best Experience Limited | Bath | A rating |
| Best Farms Partnership Ltd | Saltash | A rating |
| Best Fish Bazar | London | A rating |
| Best Foods Ltd | London | A rating |
| BEST FOREX PRIVATE LTD | Essex | A rating |
| BEST FURNITURE LTD | Manchester | A rating |
| Best Glazing Limited | London | A rating |
| BEST GROUP OF COMPANIES LTD | Barking | A rating |
| Best Halal Meat | London | A rating |
| Best Halal Meat Supply Ltd | Ashton-Under-Lyne | A rating |
| BEST HOMES BUILDER LTD | Birmingham | A rating |
| Best in Care Ltd T/A Clarity Homecare Bradford | Leeds | A rating |
| BEST IN CITY LTD | London | A rating |
| BEST IN SCOTLAND LIMITED | Edinburgh | A rating |
| BEST KINGSLAND BUTCHERS LTD | London | A rating |
| BEST LEARNING SUPPORT LIMITED | Hayes | A rating |
| Best Luxury Cars Limited | London | A rating |
| BEST MANGAL BAR AND MEZE BAR LIMITED | London | A rating |
| BEST MEAT (UK) LTD | Sheffield | A rating |
| Best Moon Shop | Ramsgate | A rating |
| Best Mortgage Adviser Ltd | BRISTOL | A rating |
| BEST OF BRITISH FAST FOOD LTD | Birmingham, England | A rating |
| BEST OF KEBABISH LIMITED | Newham | A rating |
| BEST OF NAWAB LTD | Rochdale | A rating |
| Best Of The Best plc | London | A rating |
| Best One | Oxford | A rating |
| Best One | Bishop Auckland | A rating |
| BEST ONE | HAMPSHIRE | A rating |
| BEST ONE | WIMBLEDON | A rating |
| Best One - Timperley Stores | Redhill | A rating |
| Best One (NW) Limited | Warrington | A rating |
| BEST ONE BRUNSHAW LTD | Burnley | A rating |
| Best One Earlsway Convenience Store | Macclesfield | A rating |
| Best One Haverty Precinct Ltd | St Helens | A rating |
| BEST ONE NEWS LIMITED | WATERLOOVILLE | A rating |
| Best One plus | Merseyside | A rating |
| BEST ONE T/A Hannah Convenience Store | PORTH | A rating |
| BEST ONE TRADERS LIMITED | Hillingdon | A rating |
| Best Options Agency Limited. | Blyth | A rating |
| Best Options Traders Limited | Haywards Heath | A rating |
| Best Price News Agent | London | A rating |
| BEST QUALITY DOUBLE GLAZING LIMITED | LONDON | A rating |
| BEST QUALITY FOOD STORE LIMITED | London | A rating |
| Best Quality Watches Limited | Radlett | A rating |
| BEST RECRUITMENT AGENCY LTD | London | A rating |
| Best Represents Limited | London | A rating |
| BEST SERV LTD | NOTTINGHAM | A rating |
| Best Services International Freight UK Limited | Hemel Hempstead | A rating |
| BEST SKINCARE CLINIC LIMITED | Leeds | A rating |
| Best Solutions Consulting Ltd | London | A rating |
| Best Spicy House Ltd | Liverpool | A rating |
| Best Star Real Estate 2 Limited | London | A rating |
| Best Sunbeds Limited | Stokenchurch | A rating |
| Best Support Care Ltd | Nottingham | A rating |
| BEST TAILORING SERVICES LTD | Birmingham | A rating |
| BEST TECH SERVICES LIMITED | STOKE-ON-TRENT | A rating |
| BEST TRADING (GM) LIMITED | Manchester | A rating |
| Best Trading GB Ltd | SLOUGH | A rating |
| BEST TRAINING LONDON LIMITED | London, | A rating |
| Best Transmission LTD | Birmingham | A rating |
| Best Twenty Ltd | Edinburgh | A rating |
| Best UK Supplies Ltd T/A Go Local Extra | Manchester | A rating |
| Best Value Home-Wear Limited | Brentwood | A rating |
| Best Vapes 2020 Ltd | Salford | A rating |
| Best View Windows Ltd | Manchester | A rating |
| BEST WAY LONDON LTD | London | A rating |
| BEST WHOLESALES LTD | London | A rating |
| Best Wines London Ltd | London | A rating |
| Best@Care Limited | Hounslow | A rating |
| Best4business Accountants & Company Limited | London | A rating |
| Besta Convenience Store | Arlesey | A rating |
| BESTA JEWERLY LTD | Brentford | A rating |
| BESTASIA INTERNATIONAL PVT LIMITED | Mitcham | A rating |
| BESTATDIGITAL LIMITED | Brighton | A rating |
| Bestay Limited | London | A rating |
| BESTBUY 24/7 LTD T/A BP | Ormesby | A rating |
| Bestcare Agency & Recruitment Limited | Bradford | A rating |
| BestCare Ltd | Leicester | A rating |
| BESTCHOISECARS LTD | Brierley hill | A rating |
| BESTCOOPERS LIMITED | ESSEX | A rating |
| BESTCOST LIMITED | Birmingham | A rating |
| BESTE JEFFERS LTD | Bristol | A rating |
| Bestech Private Ltd | Ilford | A rating |
| BESTFIELD CARE LIMITED | Milton Keynes | A rating |
| Bestfood Ardrossan Limited | Kilmarnock | A rating |
| BESTFOOD CASH & CARRY LIMITED | Barking | A rating |
| BESTFOODS SUPERMARKET CROYDON LIMITED T/A Best Foods | Croydon | A rating |
| Bestgate Ltd T/A Rajput Indian Restaurant | West Byfleet | A rating |
| BESTIES INTERNATIONAL LIMITED (Trading as Madina Paak Superstore) | Leicester, | A rating |
| Bestin Build Ltd | London | A rating |
| Bestmark Properties Limited | Middlesbrough | A rating |
| Bestmart Store Ltd | London | A rating |
| BESTMUNCH LTD | London | A rating |
| Bestone | WARRINGTON | A rating |
| BESTONE LEIGH PARK LIMITED | HAVANT | A rating |
| Bestone T/A Londis Fleet | Fleet | A rating |
| Bestone Up Limited | Merseyside | A rating |
| Bestone Whitburn Ltd | Whitburn | A rating |
| Bestpac UK Ltd | Blackburn | A rating |
| BESTROUTE LIMITED T/A EURASIA FOOD SERVICES | Reading | A rating |
| Bestrustees Limited | London | A rating |
| Bestseller Wholesale UK Ltd | London | A rating |
| Besttakeaway Ltd | Bathgate | A rating |
| BESTWAY CONSTRUCTION LTD | Dagenham | A rating |
| BESTWAY INTERNATIONAL CHRISTIAN CENTRE | LONDON | A rating |
| Bestway Panacea Healthcare Limited | Manchester | A rating |
| Bestway Wholesale Limited | London | A rating |
| BESU LTD | London | A rating |
| Bet Theory UK Ltd t/a Stakemate | London | A rating |
| Beta Best Produce Ltd | Eastleigh | A rating |
| Beta Bugs | Edinbrurgh | A rating |
| Beta CAE Systems UK Limited | St Albans | A rating |
| Beta Design Consultants Ltd | Brentford | A rating |
| Beta Distribution (South) Limited | Richmond | A rating |
| Beta Pharmaceuticals Limited | Witham | A rating |
| Beta Research Ltd. | Burton-on-Trent | A rating |
| Beta Shoes Ltd | Slough | A rating |
| Beta Technology Limited | Sheffield | A rating |
| BETA UK LIMITED | Maidenhead | A rating |
| Betable Limited | Manchester | A rating |
| Betapharma Limited | London | A rating |
| Betarandom Ltd | Swanley | A rating |
| Betbull Social Sports UK Limited | London | A rating |
| Betconnect Ltd | London | A rating |
| BetDEX Labs Ltd | Edinburgh | A rating |
| Betel of Britain | Aston | A rating |
| Betfair Limited | London | A rating |
| Betfred Technology Limited | Manchester | A rating |
| Beth Chatto Education Trust | Colchester | A rating |
| Beth Ezra Trust | London | A rating |
| Bethal Manna Care Ltd | Dartford | A rating |
| BETHAM SUPPORT LIVING LTD | MIDDLESEX | A rating |
| Bethania Baptist Chapel | Rhayader | A rating |
| Bethany Care Trust | Tadley | A rating |
| Bethany Christian Centre | HOUGHTON LE SPRING | A rating |
| Bethany Christian Trust | Edinburgh | A rating |
| Bethany Home Ltd | Chepstow | A rating |
| Bethany House Ltd | Whitehaven | A rating |
| Bethany School Ltd | Tonbridge | A rating |
| Bethel Community Church | Barnsley | A rating |
| Bethel Healthcare (Hull) Limited | HULL | A rating |
| BETHEL MINI MART LIMITED T/A BETHEL MINI MART | London | A rating |
| BETHEL MINISTRIES TELUGU CHURCH | CHELMSFORD | A rating |
| Bethel Trading Enterprises (UK) Ltd | Aylesbury | A rating |
| Bethel United Church of Jesus Christ (Apostolic) UK | West Bromwich | A rating |
| Bethell Racing | Leyburn | A rating |
| Bethell Racing Ltd | Leyburn | A rating |
| BETHESDA (MERTHYR) LTD T/A RED SPICE | Merthyr Tydfil | A rating |
| Bethesda Medical Centre | Margate | A rating |
| Bethlehem Evangelical Church | Port Talbot | A rating |
| Bethnal Green Montessori School Limited | London | A rating |
| Bethnal Green Visionplus Limited (T/A Specsavers) | London | A rating |
| Bethphage | Shrewsbury | A rating |
| Beths Grammar School | Bexley | A rating |
| Betknowmore UK | London | A rating |
| Betna Agencies LTD | Nottingham | A rating |
| BeTo Solutions Ltd | Romford | A rating |
| Beto`s UK Ltd | Bournemouth | A rating |
| Betongpark Limited | London | A rating |
| Better Bargain | Newcastle Upon Tyne | A rating |
| Better Brows Limited | Buckinghamshire | A rating |
| Better Care Services Ltd | Cannock | A rating |