| Birth London Limited | London | A rating |
| Birtley Community Church | Chester-le-Street | A rating |
| Birtley House Specialist Independent School | Sevenoaks | A rating |
| Birtley Medical Group | Birtley | A rating |
| BIRU TAKEAWAY LTD | Harrow | A rating |
| Birunthapan Selventhiran T/A Turves Convenience | Birmingham | A rating |
| Birwood Dental Care Limited T/a The Gardens Dental Centre | London | A rating |
| BIRYANI BOX SCOTLAND LTD | Edinburgh | A rating |
| BIRYANI GUYZ BHM LTD | Birmingham | A rating |
| Biryani in a Box Limited | Milton Keynes | A rating |
| BIRYANI JUNCTION Ltd | Kingsley Road | A rating |
| BIRYANI WAALA LTD | London | A rating |
| Biryani Wala Ltd | West Drayton | A rating |
| BiryanipediaUK Ltd T/A Biryanipedia | Leicester | A rating |
| Biryaniz Ltd | Nottingham | A rating |
| Bisc Group Ltd | Birmingham | A rating |
| Bisca UK Limited | Helmsley | A rating |
| Bischell Construction Limited | West Kensington | A rating |
| BISCOT PHARMACY LTD | Luton | A rating |
| BISCOTTI LIMITED | London | A rating |
| Biscuit Clothing Ltd | Tranent | A rating |
| Biscuit Filmworks UK | London | A rating |
| Biscuit International UK. | Gateshead | A rating |
| Biscuiteers Limited | London | A rating |
| Biscuits with the Boss Limited | Ripon | A rating |
| Bishop Auckland Visionplus | Fareham | A rating |
| Bishop Burton College | Bishop Burton | A rating |
| Bishop Chadwick Catholic Education Trust | Houghton Le Spring | A rating |
| Bishop Challoner Federation of Schools | London | A rating |
| Bishop Cleeve Post Office | Cheltenham | A rating |
| Bishop Fryer Ltd | Southam | A rating |
| BISHOP LTD | Gravesend | A rating |
| Bishop Ramsey CoE School | Ruislip | A rating |
| Bishop Stopford School | Kettering | A rating |
| Bishop Stopford's School | London | A rating |
| Bishop's Hatfield Girls' School | Hatfield | A rating |
| Bishop's Stratford MS Sushi Ltd | OXFORD | A rating |
| Bishopgate Medical Centre | Bishop Auckland | A rating |
| BISHOPRISE LIMITED | WOLVERHAMPTON | A rating |
| Bishops Stortford Baptist Church | Bishop's Stortford | A rating |
| Bishops Stortford Cricket Club | Bishops Stortford | A rating |
| Bishops Stortford Veterinary Hospital Limited | Bishops Stortford | A rating |
| Bishops Stortford Visionplus t/a Specsavers Limited | Bishops Stortford | A rating |
| Bishops Waltham Removals Ltd | Southampton | A rating |
| Bishops' Conference of Scotland | Airdrie | A rating |
| Bishopsfield Capital Partners Limited | London | A rating |
| Bishopsford Road Medical Centre | Morden | A rating |
| Bishopsgate Specsavers Hearcare Limited | London | A rating |
| Bishopshalt School | Uxbridge | A rating |
| BISHOPSHOUSERCG | TEIGNMOUTH | A rating |
| Bishopston Cricket Club | Westbury-on-Trym | A rating |
| Bishopsworth Dental Surgery | Bristol | A rating |
| Bishopton Company Limited | Kirkcudbright | A rating |
| Bishopton Medical Practice | Bishopton | A rating |
| Bishopton Veterinary Group Ltd (BVGC Ltd) | Ripon | A rating |
| Bisla Construction Ltd | West Bromwich | A rating |
| BISLEY POST OFFICE | SURREY | A rating |
| Bisma Construction Ltd | Luton | A rating |
| BISMILLA PROPERTY LIMITED | London, | A rating |
| Bismillah Accessoires LTD | Bradford | A rating |
| BISMILLAH BALTI TANDOORI LTD | Gosport | A rating |
| BISMILLAH ENTERPRISE LTD | Bradford | A rating |
| Bismillah Foodstore Ltd | Nottingham | A rating |
| Bismillah Fresh Market Ltd | London | A rating |
| BISMILLAH FRIED CHICKEN LTD t/a BFC | London | A rating |
| BISMILLAH GROUP HEMEL LIMITED T/A ALYA'S | Hemel Hempstead | A rating |
| BISMILLAH HALAL MEAT LTD | Birmingham | A rating |
| BISMILLAH JOINT VENTURE LTD | London | A rating |
| BISMILLAH KITCHEN LTD | Oldham | A rating |
| BISMILLAH LONDON LTD | LONDON | A rating |
| BISMILLAH NATIONAL HALAL MEAT LTD | Birmingham | A rating |
| BISMILLAH ROTI HOUSE (BRADFORD) LIMITED | BRADFORD | A rating |
| BISMILLAH SUPERMARKET LTD | BIRMINGHAM | A rating |
| BISMILLAH TAKEAWAY LIMITED T/A STUBBINGTONTANDOORI | Fareham | A rating |
| Bismor care homes ltd | Hessle | A rating |
| Bisnow Ltd | London | A rating |
| BISS HAIRDRESSERS LTD | Luton | A rating |
| Bissell and Partners Ltd | London | A rating |
| Bistre Nursing Home, | Buckley | A rating |
| Bistro 24 Ltd | London | A rating |
| BISTRO ENTERPRISE LTD T/A Bombay Bistro | Baldock | A rating |
| BISTRO PARIS LTD | Aberdeen | A rating |
| BISTRO SACRE LTD | London | A rating |
| Bistro1 | London | A rating |
| Bistrot Pierre 1994 Limited T/A Bistrot Pierre | Nottingham | A rating |
| Bistrotheque | London | A rating |
| Bisushima Japanese Restaurant | London | A rating |
| Bit Bio Limited | Cambridge | A rating |
| Bit Warmer Ltd | Godalming | A rating |
| BITAK HEALTHCARE LIMITED | Boscombe Down Business | A rating |
| Bite Collective Ltd | Littlehampton | A rating |
| Bite Investments (UK) Limited | London | A rating |
| BITE N EAT LTD T/A Bite N Eat Peri Peri Ltd | Leigh-On-Sea | A rating |
| BITES CAFE LIMITED | West Sussex | A rating |
| BITES OF INDIA LIMITED | Southampton | A rating |
| BITESIZE CONSULTING (CG) LTD | London | A rating |
| Bitfount Ltd | London | A rating |
| BITLogix Ltd | Mitcham | A rating |
| Bitmap Bureau Ltd | Southampton | A rating |
| Bitnet Solutions Ltd | Birmingham | A rating |
| Bitpanda GmbH UK Establishment | London | A rating |
| BITS IN GLASS UK LTD | Tunbridge Wells | A rating |
| BITS SPECTRUM GLOBAL LTD | London | A rating |
| BITTACY CS LTD | London | A rating |
| Bitterne Care Homes Ltd T/A St Katherine Care Home | Southampton | A rating |
| Bitterne Park School | Southampton | A rating |
| Bitterne Specsavers Limited T/A Specsavers Opticians | Southampton | A rating |
| Bitwise Europe Management Ltd | London | A rating |
| Bitwise Global | London | A rating |
| Bitwise Ltd | Dunfermline | A rating |
| BITZER UK LTD | Milton Keynes | A rating |
| BiVictriX Limited | Alderley Edge | A rating |
| BIVORA LTD | Manchester | A rating |
| Bixely Independent Living Services Ltd T/A Mountview Care Home | Kent | A rating |
| BIXLEY PHARMA LIMITED | Ipswich | A rating |
| BIXTECH LIMITED | NORTHAMPTON | A rating |
| BIYYA LTD | Manchester | A rating |
| Biz Accounting Ltd | Harrow | A rating |
| Biz Accounting Solutions Ltd | Wokingham | A rating |
| Biz Associates Ltd | Uxbridge | A rating |
| BIZ BIZE UK LTD | Greenford | A rating |
| BIZ CLEANERS LIMITED | Stanmore | A rating |
| Biz Crunch Ltd | London | A rating |
| BIZ Engineering Limited | Ensfield | A rating |
| Biz-Effective UK Limited | London | A rating |
| Biz2mobile Ltd | Reading | A rating |
| Bizagi Limited | Chalfont St Peter | A rating |
| Bizbell Ventures Limited | Harrow | A rating |
| BizClik Media Ltd | Norwich | A rating |
| BIZDGE LIMITED | St. Albans | A rating |
| BIZGROW HOLDINGS LTD | Essex | A rating |
| Bizlog Ltd | Southampton | A rating |
| BIZMAX TECH LTD | Stockton-On-Tees | A rating |
| BIZMI GLOBAL LTD | LEICESTER | A rating |
| Bizmonkeys Ltd | Axminster | A rating |
| BizNav Chartered Accountants | Bromley | A rating |
| BIZNET LTD | Luton | A rating |
| Bizsoft Solutions Limited | Colchester | A rating |
| BIZTECH CONSULTANTS LTD | Ilford | A rating |
| Bizy Construction Ltd | London | A rating |
| BIZZ EDUCATIONAL CONSULTANCY LTD | PRESTON | A rating |
| BIZZLE ENTERTAINMENT LTD | LONDON | A rating |
| BizzMine UK Ltd | Preston | A rating |
| BJ Retail ltd | Bolton | A rating |
| BJ Wines | London | A rating |
| BJB COLCHESTER LTD | Basildon | A rating |
| BJD CONSULTING ENGINEERS LTD | London | A rating |
| bjh windows ltd | portsmouth | A rating |
| BJK GLOBAL CONSULT LTD | Huddersfield | A rating |
| BJM Group Limited | Saffron Walden | A rating |
| BJMCA Ltd trading as Bluebird Care (South Lanarkshire) | Hamilton | A rating |
| BJR Foods Limited | Preston | A rating |
| BJS HAULAGE LIMITED | WEDNESBURY | A rating |
| BJS PLAICE PRIVATE LTD T/A BJS PLAICE | Peterborough | A rating |
| BK & SA Food Limited | Romford | A rating |
| Bk & Son Enterprises Ltd | London | A rating |
| BK BUSINESS INVESTMENTS LTD | Oldham | A rating |
| BK Care Solutions Ltd | Finchley Central | A rating |
| BK CHILDCARE LIMITED | Surrey | A rating |
| BK Community Accountant Limited | London | A rating |
| BK CONSTRUCTION LTD | Derby | A rating |
| BK Food Concepts Limited | London | A rating |
| BK IT Solutions Ltd | Dagenham | A rating |
| BK Johal & Sons Limited | Queensbury | A rating |
| BK MOBILES LTD | London | A rating |
| BK Motors Cardiff Ltd | Cardiff | A rating |
| BK Petersfield Sushi Ltd | Guildford | A rating |
| BK PLUS LIMITED | Aldridge | A rating |
| BK Restaurant(Yorkshire) Ltd | Hallifax | A rating |
| BK SENOL LTD | London | A rating |
| BK Shipping Ltd | London | A rating |
| BK Southall Ltd | Middlesex | A rating |
| BK TRADERS LIMITED | Bath | A rating |
| BK.LEATHER LIMITED | BARKING | A rating |
| Bkairali Ltd | Ipswich | A rating |
| Bkaur Enterprises Limited t/a Adeyfield Post Office | Hemel Hempstead | A rating |
| BKB Accountants Ltd | Poole | A rating |
| BKB CONTENT LTD | London | A rating |
| BKB TRADING LTD | Kent | A rating |
| BKE ANGEL LTD T/A BURSA KEBAB EVI | London | A rating |
| BKG Limited | Harrow | A rating |
| BKH SERVICE LTD | Leicester | A rating |
| BKM TRANSPORT UK LTD | Kent | A rating |
| BKP(UK) Limited | London | A rating |
| BKU SERVICES LTD | NOTTINGHAM | A rating |
| BKUK Group Limited | London | A rating |
| BKW Foodstores Ltd T/A KW foodstores | Bolton | A rating |
| BKW Instruments Ltd | Manchester | A rating |
| BKWAI LTD | London | A rating |
| BKZH Ltd | Dagenham | A rating |
| BL Builder | Coventry | A rating |
| BL CHESWICK GREEN LIMITED T/A Bangla Lounge Cheswick Green | Cheswick Green | A rating |
| BL Lonestar Limited | Barnsley | A rating |
| Blabla Connect Limited | London | A rating |
| Blaby News LTD | Leicester | A rating |
| Black Fox Pvt UK Ltd T/A Rio's Piri Piri | London | A rating |
| Black & Brown Dental Limited | Dunfermline | A rating |
| Black & Decker | Maidenhead | A rating |
| Black & Grey Solutions Ltd | Bexleyheath | A rating |
| Black & Veatch (U.K.) Limited | LONDON | A rating |