| Bupa | London | A rating |
| Bupa Care Services | Leeds | A rating |
| Bupa Cromwell Hospital | London | A rating |
| Bupa Occupational Health Limited | London | A rating |
| BUPANG INTERNATIONAL LTD | Manchester | A rating |
| BURAANS 107 LTD | Nottingham | A rating |
| BURAAQ FOODS LTD | Manchester | A rating |
| BURAAQ STORE LIMITED | BIRMINGHAM | A rating |
| Burak Services LTD T/A Burak Airport Transfers | London | A rating |
| Burak Transport & Solutions Ltd | Doncaster | A rating |
| Buraq Cafes Private Ltd T/A Creams Kilburn | London | A rating |
| BURAQ ESTATES LTD | Manchester | A rating |
| Buraq Foods Limited | Nottingham | A rating |
| Buraq Halal Meat | Bradford | A rating |
| Burbage & Easton Royal Cricket Club | Wiltshire | A rating |
| Burbeck Interiors Ltd | Twickenham | A rating |
| Burberry Limited | London | A rating |
| Burcuaras Ltd | Hoddesdon | A rating |
| Burda Principal Investments Limited | London | A rating |
| Burden and Burden Marketing Ltd | Letchworth | A rating |
| Bureau Bureau Limited | London | A rating |
| Bureau Consulting Limited | London | A rating |
| Bureau de Change Design Office | London | A rating |
| Bureau De Connect Ltd | Gatwick | A rating |
| Bureau Proberts International Limited | London | A rating |
| Bureau Veritas UK Ltd | Birmingham | A rating |
| Bureaucom Ltd | Orpington | A rating |
| Bureaux Design Associates LLP t/a BDA London | London | A rating |
| Burford Capital (UK) Limited | London | A rating |
| Burg Wachter Uk Ltd | Bradford | A rating |
| BURGAS SEA LIMITED T/A TARVAN RESTAURANT | Peterborough | A rating |
| Burgbach Invest Ltd | London | A rating |
| Burgeon Estates Ltd | London | A rating |
| BURGEON SOURCING LTD | London | A rating |
| Burger and Beyond Ltd T/A Burger and Beyond | London | A rating |
| BURGER AND LOBSTER RESTAURANT GROUP LTD | London | A rating |
| Burger And Sauce Limited T/A Burger And Sauce | West Midlands | A rating |
| Burger Base Hounslow Ltd T/A Burger Base Hounslow | Hounslow | A rating |
| Burger Express Bolton Ltd | Farnworth | A rating |
| Burger Express Bolton Ltd | Manchester | A rating |
| Burger Junction Limited | Ashford | A rating |
| Burger Nation Ltd | Whyteleafe | A rating |
| BURGER SHACK MCR LTD | Manchester | A rating |
| Burger Yard Limited | Romford | A rating |
| BURGER ZONE LIMITED | Staines-Upon-Thames, | A rating |
| BURGER8 LIMITED | SUNDERLAND | A rating |
| BURGERBOYSUK LTD | Lockwood, Huddersfield | A rating |
| BURGERDONER LIMITED | Bradford | A rating |
| BURGERGO LTD T/A AMIGOS BURGERS AND SHAKES | Feltham | A rating |
| BURGERLY LIMITED | Beverley | A rating |
| Burgermeister Ltd. | London | UK Expansion Worker: Provisional |
| Burgernomics (t/as McDonald's) | Hitchin | A rating |
| BURGERS LDN (BARKING) LTD | Barking | A rating |
| BURGERS LDN (GRAYS) LTD | GRAYS | A rating |
| BURGERVILLE 2875 LTD | Hednesford | A rating |
| Burges Salmon LLP | Bristol | A rating |
| Burgess Hill Cricket Club | Burgess Hill | A rating |
| Burgess Road Dental Practice | Southampton | A rating |
| Burgh House Residential Care Home Ltd | Great Yarmouth | A rating |
| Burgh Island Ltd | Bigbury-on-Sea | A rating |
| Burghfield Dental Care Ltd | Reading | A rating |
| Burgoyne Management Ltd | London | A rating |
| Burgshake Restaurant Southampton Ltd | Southampton | A rating |
| Burgundy Care Services Ltd | Huddersfield | A rating |
| Burhill Logistics | Felixstowe | A rating |
| BURJ AT THE BELL LTD | MARLBOROUGH | A rating |
| BURJ SWINDON RESTAURANT LTD | SWINDON | A rating |
| Burke Hunter Adams LLP | London | A rating |
| Burke Niazi Limited | London | A rating |
| Burkitt Communications Ltd | Rutland | A rating |
| Burleigh House Nursery | Newport | A rating |
| Burley Law Limited | Birmingham | A rating |
| Burlington Bertie Limited | London | A rating |
| Burlington Media Group Ltd | London | A rating |
| Burlington Nursing Home Limited | Bognor Regis | A rating |
| BURLINGTON NURSING HOME LIMITED | West Sussex | A rating |
| Burlington Primary Care | Ipswich | A rating |
| Burlington School Limited | Balham | A rating |
| BURLINGTON UNIFORMS LIMITED | London | A rating |
| Burlingtown UK Limited | London | A rating |
| BURNAGE BUTCHERS LTD T/A BURNAGE BUTCHERS | Manchester | A rating |
| Burnbank Retail Ltd | Hamilton | A rating |
| Burndennett Cricket Club | Strabane | A rating |
| Burne and Royce Ltd | Lancashire | A rating |
| Burnell Controls (Kent) Ltd | Dartford | A rating |
| Burnells | Stanmore | A rating |
| Burness Paull LLP | Edinburgh | A rating |
| BURNEY TOMAR LTD | Croydon | A rating |
| Burngreave Building Company Ltd | Sheffield | A rating |
| BURNGREAVE SURGERY | Sheffield | A rating |
| Burnham Cricket Club | Slough | A rating |
| Burnham on Sea Visionplus t/a Specavers Limited | Burnham-on-Sea | A rating |
| Burnham Restaurant LTD | Slough | A rating |
| Burnham Surgery | King's Lynn | A rating |
| Burning Bull bfd Ltd | Bradford | A rating |
| Burningfold Limited | Dunsfold | A rating |
| Burnlea Care Home | Largs | A rating |
| Burnley College | Burnley | A rating |
| Burnley FC Women Limited | Burnley | A rating |
| Burnley Football & Athletic Company Ltd | Burnley | A rating |
| Burnley Steak House Limited | Burnley | A rating |
| Burnmoor Cricket Club | Houghton le Spring | A rating |
| Burnopfield Cricket Club | Newcastle upon Tyne | A rating |
| Burns & McDonnell Europe (UK) Limited | Birmingham | A rating |
| Burns & Wilcox Global Solutions Ltd | London | A rating |
| Burns and Gough Properties Limited | Luton | A rating |
| Burns Owens Partnership Ltd | London | A rating |
| Burnside Hotel Limited T/A Burnside Hotel | Stratford-upon-Avon | A rating |
| Burnt Faith Spirits Ltd | London | A rating |
| Burnt Mill Academy Trust | Harlow | A rating |
| Burntwood Lodge | Caterham | A rating |
| BURNTWOOD TRUST | London | A rating |
| BURNVIEW PROPERTIES LTD | BANGOR | A rating |
| BURO FOUR PROJECT SERVICES LIMITED | London | A rating |
| Buro Happold Engineers Limited | Bath | A rating |
| BURO OLE SCHEEREN LTD | London | A rating |
| Burogroup Europe Ltd | Loughborough | A rating |
| Burpin Ron's | Winchester | A rating |
| BURRAGE LTD | LONDON | A rating |
| BURRAQ TRADERS LTD | Bury | A rating |
| Burrell & Mistry Ltd | London | A rating |
| Burrell Care Ltd | Wallington | A rating |
| Burrendale Hotel Ltd | Newcastle | A rating |
| Burridge Dental Practice Ltd | Southampton | A rating |
| Burrito Joe Limited | City of London | A rating |
| Burrito Mex Restaurant Ltd | London | A rating |
| Burrow Down Support Services Limited | Milton Keynes | A rating |
| Burrow Music Coffee Ltd | LONDON | A rating |
| Burrows Hall | Swansea | A rating |
| Burscough Family Practice | Ormskirk | A rating |
| Burslem Cricket Club | Stoke-on-Trent | A rating |
| Burslem Grocery Ltd | Stoke-On-Trent | A rating |
| Burson Buchanan Limited | London | A rating |
| Burson Group Limited | London | A rating |
| Burst Marketing Ltd | Sheffield | A rating |
| Burstock Ltd | Beaminster | A rating |
| Burstone UK Limited | London | A rating |
| Burt Boulton & Haywood Limited | Newport | A rating |
| BURTON (MAN) OFF LICENCE LTD | Manchester | A rating |
| Burton 0820 Ltd t/a Wing Wah Chinese Restaurant | Burton-on-Trent | A rating |
| Burton Dental Lodge | Boston | A rating |
| Burton Healthcare Limited | Manchester | A rating |
| Burton Hunt | Lincoln | A rating |
| Burton International Consultancy Limited | London | A rating |
| Burton Latimer Town Cricket Club | Burton Latimer | A rating |
| Burton on Trent Visionplus Ltd t/a Specsavers | Burton on Trent | A rating |
| Burton Physiotherapy Ltd | Burton Upon Trent | A rating |
| Burton Pizza Limited | Burton upon Trent | A rating |
| Burton Spice Ashford Ltd | Ashford | A rating |
| Burton Sweet Limited | Shepton Mallet | A rating |
| Burtonwood Generator & Switchgear Services Ltd | St. Helens | A rating |
| Burts Snacks Ltd | Plymouth | A rating |
| Burwell & Exning Cricket Club | Burwell | A rating |
| BURWELL STOP&SHOP LIMITED | STEVENAGE | A rating |
| Burwell Village College Primary School | Cambridge | A rating |
| BURY BODY CENTRE LTD | Bury | A rating |
| Bury Chiropractic Ltd | Bury | A rating |
| Bury Coffee ltd T/A Muffin Break | Bury ST Edmunds | A rating |
| BURY CONSTRUCTION GROUP LTD | Bury | A rating |
| Bury Council | Bury | A rating |
| Bury GP Practices Ltd | Bury | A rating |
| Bury House Dental Practice | Stowmarket | A rating |
| Bury St Edmunds Cricket Club | Bury St Edmunds | A rating |
| Bury St Edmunds Visionplus Limited t/a Specsavers | Bury St Edmunds | A rating |
| BUS STOP NEWS BRISTOL LTD | Bristol | A rating |
| Busby House Dental Centre Limited | Harrow | A rating |
| Busbys Hair and Beauty Limited | Ealing | A rating |
| Busbys Solicitors Limited | Totned | A rating |
| BUSCALIBRE UK LTD | Reading | A rating |
| Busch (UK) LTD | Telford | A rating |
| Buschelli Ltd | Manchester | A rating |
| BuschGVT | Crewe | A rating |
| Buscon Limited | Watford | A rating |
| BUSE GASES LTD | West Bromwich | A rating |
| Bush House Pembroke Holding Limited t/a Glanenig Carehome | Talgarth | A rating |
| Bush House Pembroke Limited | Pembrokeshire | A rating |
| Bush House Veterinary Group | Llandeilo | A rating |
| Bush Pharmacy | London | A rating |
| BUSHBURY ALL IN ONE SUPER MARKET LTD | WOLVERHAMPTON | A rating |
| BUSHBY CARE LIMITED | WORTHING | A rating |
| Bushey Heath Dental Centre | Herts | A rating |
| Business & Human Rights Resource Centre | London | A rating |
| Business 2 Business (RSC) Limited | Leicester | A rating |
| Business Advantage | Petts Wood | A rating |
| Business Advantage Limited | Orpington | A rating |
| Business and Service Solutions Ltd | Stockport | A rating |
| Business Calibration Limited | East Kilbride, Glasgow | A rating |
| Business Centric Services Group Ltd | London | A rating |
| BUSINESS CLUB LONDON LIMITED | London | A rating |
| BUSINESS COMMUNICATIONS AND SERVICES GROUP LIMITED | Manchester | A rating |
| Business Concern Plus Limited T/A Business Concern Plus LTD | Ashton-Under-Lyne | A rating |
| Business Connexion Limited | Stevenage | A rating |
| BUSINESS CONSULTING & ACCOUNTING LIMITED | Portsmouth | A rating |
| Business Cube Management Solutions Limited | London | A rating |
| BUSINESS DATA QUALITY LTD | LONDON | A rating |
| Business Development Director | LONDON | A rating |
| Business Disability Forum | London | A rating |
| Business Dispatch Ltd | Banstead | A rating |
| BUSINESS EDGE SOLUTIONS LTD | GLASGOW | A rating |
| BUSINESS EXCELLENCE EUROPE LIMITED | Loughton | A rating |