| Baybridge &CO Limited | Hampshire | A rating |
| Baybridge Estate Limited T/A Gainsborough House Hotel | Kidderminster | A rating |
| Baycliff Dental & Implant Surgery | Liverpool | A rating |
| Baydar Ltd. | Tunbridge Wells | A rating |
| Bayer plc | Reading | A rating |
| Bayerische Landesbank | London | A rating |
| Bayfields Opticians | Esholt | A rating |
| Bayford New Horizons Limited | Epsom | A rating |
| Bayforest Technologies Limited | London | A rating |
| Bayis Sheli Limited | London | A rating |
| Bayith Rest Home Limited | Waterlooville | A rating |
| BAYLEAF (LAKE) LIMITED | ISLE OF WIGHT | A rating |
| Bayleaf Care Limited | Gateshead | A rating |
| Bayleaf Facilities Management Ltd | London | A rating |
| Bayleaf Restaurant Ltd | London | A rating |
| BAYLEAF WALES LIMITED | CARDIFF | A rating |
| Bayleaf Whetstone Ltd | London | A rating |
| BAYLEY & SAGE LTD | LONDON | A rating |
| BAYLIS TRAFFIC MANAGEMENT LTD | SLOUGH | A rating |
| Bays Consulting Limited | Guildford | A rating |
| Bays International Limited | Oxford | A rating |
| BAYSAL CONSULTANCY LTD | London | A rating |
| Baystone Associates Limited | London | A rating |
| Baystone Limited T/A Cranford Residential Home | Exmouth | A rating |
| BAYSWATER FINANCIALS UK LIMITED | London | A rating |
| Bayswift ltd Trading as Chegworth Nursing Home | Sutton | A rating |
| BAYT AL YEMENI LTD | Birmingham | A rating |
| Baytree Community Care ( London ) Limited | London | A rating |
| Baytrees Homes Ltd | Worthing | A rating |
| BAYTRIX LTD | Kent | A rating |
| Baytul Ilm Secondary School | milton Keynes | A rating |
| Bayview Hotel Portballintrae Limited | Portballintrae | A rating |
| Bayview International UK Ltd | London | A rating |
| BayWa R.E. UK Limited | Edinburgh | A rating |
| Baywater Healthcare | Crewe | A rating |
| Baywater Healthcare Limited | Crewe | A rating |
| Baywood Chemist (Greatvale Ltd) | London | A rating |
| Baz Mohammed Ahmadi T/A Panjtani Store | Peterborough | A rating |
| Baz Services Limited | Warrington | A rating |
| BAZAAR CATERING LTD T/A ISTANBUL GRILL CHEADLE | MANCHESTER | A rating |
| Bazaarvoice Limited | London | A rating |
| BAZAL BUILDERS LIMITED | Bolton | A rating |
| Bazil Foods LTD | West Lothian | A rating |
| Bazooka Candy Brands International Ltd | Richmond | A rating |
| BAZYAN (HEREFORD) LTD T/A DINO MARKET | HEREFORDSHIRE | A rating |
| BB (UK) Limited | Watford | A rating |
| BB Accounting Solutions Ltd | Glasgow | A rating |
| BB Black Pearl Ltd T/A Haute Dolci Blackburn | Blackburn | A rating |
| BB Brighton Ltd | London | A rating |
| BB Catering INC Ltd, T/A Black Rooster Peri Peri | Glasgow | A rating |
| BB CATERING SUPPLIES LTD | Blackburn | A rating |
| BB DESIGNS EUROPE LTD | WATFORD | A rating |
| BB DINNER LIMITED | MANCHESTER | A rating |
| BB FOOD & WINE LTD | CROWTHORNE | A rating |
| BB Leicester LR Ltd | Leicester | A rating |
| BB MERCHANT SERVICES LTD | SOUTHAMPTON | A rating |
| BB NEWWORXS LTD | London | A rating |
| BB NOBEL MARKETING LIMITED | London | A rating |
| BB Securities Ltd | London | A rating |
| BB SUPREME KITCHEN LTD | Birmingham | A rating |
| BB TRADE AND CONSULTANCY LTD | London | A rating |
| BB Wine Store Limited | BANBURY | A rating |
| BB&R Limited | London | A rating |
| BB2 Digital and Technology Services Ltd | London | A rating |
| BB7 Consulting Limited | Chatham | A rating |
| BBA Builders Ltd | Feltham | A rating |
| BBB SENANG LTD | brighton | A rating |
| BBC | Salford | A rating |
| BBC Coffee Limited | Southampton | A rating |
| BBC Double Glazing Limited | Bretford | A rating |
| BBcare10 Ltd | Joys Green | A rating |
| BBD Perfect Storm (London) Limited | London | A rating |
| BBD Software Limited | London | A rating |
| BBF Interiors LTD | Birmingham | A rating |
| BBFATIMA CASH AND CARRY LIMITED | Romford | A rating |
| BBGH LIMITED | London | A rating |
| BBH Partners LLP | London | A rating |
| BBI Resources Limited | Crumlin | A rating |
| BBI Services Ltd | Shipston-on-Stour | A rating |
| BBIH Limited | Basingstoke | A rating |
| BBJ&K Ltd | Birmingham | A rating |
| BBK PARTNERS LTD | London | A rating |
| BBK PARTNERSHIP | Chipping Barnet | A rating |
| BBL/P Ltd | London | A rating |
| BBLHD Ltd | Old Harlow | A rating |
| BBNN Limited T/A Burger Boi | Northampton | A rating |
| BBOXX CONNECTED COMMUNITY LTD | London | A rating |
| BBQ HUT BRUM Ltd | Birmingham | A rating |
| BBRC LTD | Sutton Coldfield | A rating |
| BBS (SCOTLAND) LTD | Earlston | A rating |
| BBS & SONS CONSTRUCTION (UK) LTD | Middlesex | A rating |
| BBs Beauty and Brows | Peterborough | A rating |
| BBS Law Ltd | Manchester | A rating |
| BBS1 CONSTRUCTION LTD | Chigwell | A rating |
| BBSM Ltd | Tiverton | A rating |
| BBUK Studio Limited | London | A rating |
| BBWW LIMITED | London | A rating |
| BC and G Care Homes Ltd | Luton | A rating |
| BC Care Ltd | Leeds | A rating |
| BC Chesterfield Ltd | Chesterfield | A rating |
| BC ENGINES & GEARBOXES LTD | Oldham, England, | A rating |
| BC Englishscore Limited | London | A rating |
| BC Events LTD | Totnes | A rating |
| BC GROUP EUROPE LTD | London | A rating |
| BC Group Support SARL (UK Branch) | London | A rating |
| BC INVESTMENT GROUP (UK) LIMITED | London | A rating |
| BC LINKS LTD | New Barnet | A rating |
| BC London Lions Limited | London | A rating |
| BC PARTNERS LLP | London | A rating |
| BC Sheffield Ltd | Sheffield | A rating |
| BC SMILE LTD T/A EB DENTAL | LONDON | A rating |
| BCA DESIGN LTD. | Southam | A rating |
| BCA Engineering Supplies Ltd | England | A rating |
| BCA Landscape Ltd | Liverpool | A rating |
| BCAS Bio-Medical Services Limited | Reading | A rating |
| BCBS CONSTRUCTIONS LTD | London | A rating |
| BCC Car Hire | Rossendale | A rating |
| BCC CONSULTANCY SERVICES LTD | Harrow | A rating |
| BCD Fish & Chips Ltd T/A UPO's Fish Bar | Swadlincote Derbyshire | A rating |
| BCDH Capital Holding (UK) Limited | London | A rating |
| BCE Partners UK Ltd | London | A rating |
| BCEGI Construction (UK) Ltd | Manchester | A rating |
| BCG BUILDING SERVICES LTD | Milton Keynes | A rating |
| BCG Digital Ventures | London | A rating |
| BCG Electrical Services Ltd | Fareham | A rating |
| BCG Global Specialty Businesses | London | A rating |
| BCG Student Ltd | Henley-On-Thames | A rating |
| BCH Care Limited | Bristol | A rating |
| bChannels Ltd | London | A rating |
| BCI Management Services Limited | london | A rating |
| BCI UK IRR Limited | London | A rating |
| BCK (BIRMINGHAM) LTD | Birmingham | A rating |
| BCL Legal Limited | Manchester | A rating |
| BCL Management and Consultancy Ltd | London | A rating |
| BCL Solicitors LLP | London | A rating |
| BCL Timber Projects Limited | Reading | A rating |
| BCLD LEICESTER LTD | LEICESTER | A rating |
| BCM International | Kilsyth | A rating |
| BCM International UK | Gloucester | A rating |
| BCM Limited | Nottingham | A rating |
| BCMS CORPORATE LIMITED | NEWBURY | A rating |
| BCMY Ltd | Littlehampton | A rating |
| BCN Group Ltd | Manchester | A rating |
| BCON PROJECTS LTD | Salford | A rating |
| BCP Consulting Limited | London | A rating |
| BCP Securities UK Ltd | London | A rating |
| BCR Entertainments Ltd | Altrincham | A rating |
| BCR Infinity Architects | Cambridge | A rating |
| BCS CHAHAL LTD | Gravesend | A rating |
| BCS Data Centres Limited | London | A rating |
| BCS, The Chartered Institute for IT | Swindon | A rating |
| BCT Aviation Maintenance Ltd | Derby | A rating |
| BCT Consultants Ltd. | Milton | A rating |
| BCT Consulting Ltd | Reading | A rating |
| BCW Repair Centre Ltd | Brackley | A rating |
| BD ASSOCIATES (UK) LTD | London | A rating |
| BD Builders Services Ltd. | Hounslow | A rating |
| BD Business Ltd | Woking | A rating |
| BD CHEM LTD T/A JUNCTION PHARMACY | LONDON | A rating |
| BD Construction PM Ltd | London | A rating |
| Bd elevate Business Ltd | London | A rating |
| BD Food Hull Limited | Hull | A rating |
| BD INTERNATIONAL DISTRIBUTIONS LTD | London | A rating |
| BD King Ltd T/A Elachi | Cwmbran | A rating |
| BD landscape architects ltd | Tewkesbury | A rating |
| BD PROPERTY CONSULTANTS Ltd | LONDON | A rating |
| BD security services Ltd | Dagenham | A rating |
| BD TAX SOLUTIONS LTD | Loughborough | A rating |
| BD TOOLS AND SERVICES LTD | Stafford | A rating |
| BD TOOLS LIMITED | Enfield | A rating |
| BD UK Ltd | Wokingham | A rating |
| bd-capital Partners Limited | London | A rating |
| BDA Partners (London) Limited | London | A rating |
| BDA PIZZA LYD | Boston | A rating |
| Bdah for Animal Health and Agriculture Ltd | London | A rating |
| BDBIZ UK LIMITED | Ilford | A rating |
| BDC Healthcare & Education Ltd | Northampton | A rating |
| BDD Pharma Ltd | Glasgow | A rating |
| BDE Secure Power Ltd | Carrickfergus | A rating |
| BDI Security Solutions Ltd | Huntingdon | A rating |
| Bditto Limited | London | A rating |
| BDK IINDUSTRAIL PRODUCTS LIMITED | IPSWICH | A rating |
| BDK WHOLESALE LIMITED | Glasgow | A rating |
| BDL Restaurant Ltd | London | A rating |
| BDLAND UK LIMITED | London | A rating |
| BDM Ads Ltd | LONDON | A rating |
| BDM Care Ltd | Perthshire | A rating |
| BDM Law LLP | London | A rating |
| BDM Logistics and Management | London | A rating |
| BDO LLP | London | A rating |
| BDP International UK Limited | Dartford | A rating |
| BDP Management Services Ltd | London | A rating |
| BdR Civil & Structural Engineering Limited | Hadlow | A rating |
| BDR2 Ltd | Llandudno | A rating |
| BDS BUILD CONSTRUCTION LTD | Slough | A rating |
| BDS Plant Hire (Orkney) Ltd | Stromness | A rating |
| BDS Sandhu Limited | Coventry | A rating |
| BDSJ TRANSPORT LTD | West Bromwich | A rating |
| BDT & MSD Partners International, LLP | London | A rating |
| BDTASK UK LTD | London | A rating |