| Bohemia Invest Two Ltd | Camberley | 2022 |
| Bohemia Tax Ltd | Northampton | 2011 |
| Bohemian Pictures Ltd | Watford | 2009 |
| Bohemy Community Wellbeing CIC | Glasgow | 2022 |
| Bohi Industrial (China) Ltd | Beckenham | 2014 |
| Boho Foods Limited | Bicester | 2023 |
| Bohong Business Ltd | Carshalton | 2022 |
| Bohr Engineering Limited | Stone | 2021 |
| Bohs Co., Ltd | London | 2019 |
| Boiler Breakdowns London Ltd | Pinner | 2022 |
| Boiler Express Limited | London | 2020 |
| Boiler Medic Limited | Colchester | 2013 |
| Boiler Patrol Group Limited | Horsham | 2023 |
| Boiler Room (UK) NO. 2 Limited | London | 2014 |
| Boiler Room Records (UK) Limited | London | 2014 |
| Boiler Shield Limited | Birchwood | 1975 |
| Boiler Spares 2 Go Limited | Newbury | 2014 |
| Boiler Squad Ltd | Harrogate | 2012 |
| Boilercare (Southampton) Ltd. | Southampton | 1987 |
| BOILERS2BATHROOMS Plumbing & Heating Ltd | Cambridge | 2007 |
| Boise Cascade Office Products (UK) Limited | Andover | 1997 |
| Boism Ltd | Worcester | 2005 |
| Boisset UK Limited | Totton | 2022 |
| Bojami, Limited | London | 2014 |
| Bojko Ltd | Halifax | 2019 |
| BOK Group Limited | London | 2016 |
| BOK Holding Limited | London | 2018 |
| Boka Bolt Supplies Limited | Wigan | 2015 |
| Bokaira Ltd | Birmingham | 2024 |
| Bokomoko Ltd | London | 2023 |
| Bokoroko Limited | Hinckley | 2024 |
| Bolafiss Ltd | London | 2024 |
| Bolaog Limited | Gravesend | 2019 |
| Bolcer Ltd | Coventry | 2023 |
| Bold Cleaning Services Ltd | Grays | 2016 |
| Bold Foods Limited | St Albans | 2026 |
| Bold Investment Hub Ltd | Manchester | 2026 |
| Bold Services Limited | Grays | 2022 |
| Bold Training Ltd | Grays | 2016 |
| Bold-Sp (UK) Ltd | Maldon | 2025 |
| Bolder Holdings Limited | Broadstairs | 2024 |
| Boldly Premium Subscription Staffing Ltd | Towcester | 2019 |
| Bole Cultural Media Limited | Kington | 2025 |
| Boley Construction Ltd | Shenfield | 2003 |
| Boligbistand Limited | London | 2026 |
| Bolina 184 Limited | London | 2012 |
| Bolingbroke & Wenley Limited | Colchester | 2006 |
| Bolland Group Limited | Beckenham | 2019 |
| Bollards Limited | Newcastle Under Lyme | 2002 |
| Bolney Green Energy Hub Limited | Tunbridge Wells | 2024 |
| Bolneys Wood (2000) Limited | Sevenoaks | 2022 |
| Bolnore Village Homes Ltd | Haywards Heath | 2010 |
| Bolshie Goose Ltd | Wymondham | 2022 |
| Bolsoenes Regnskap & Loennsomhetsutvikling Limited | London | 2010 |
| Bolt Burdon Kemp Solicitors Ltd | London | 2021 |
| Bolt Electricians Ltd | Orpington | 2020 |
| Bolt Fire Ltd | Morecambe | 2022 |
| Bolt Hole Developments Ltd | London | 2015 |
| Bolt Nominee 1 Limited | London | 2015 |
| Bolt Nominee 2 Limited | London | 2015 |
| Bolthole Solutions Limited | Callington | 2000 |
| Bolton 1969 Limited | Bolton | 2014 |
| Bolton Brady Limited | Nelson | 2016 |
| Bolton Enterprise Limited | Salford | 2019 |
| Bolton Gray Ltd. | Hope Valley | 1985 |
| Bolton Safety Glass Limited | Chorley | 2004 |
| Bolton Tipper & Grab Hire Ltd | Bolton | 2012 |
| Bolton Wanderers Football Academy Limited | Warrington | 2019 |
| Bolton Wanderers Football Club Academy Limited | Warrington | 2019 |
| Bolton Wanderers Football Club Limited | Warrington | 2019 |
| Bolton Wanderers Football Club Merchandising Limited | Warrington | 2019 |
| Bolton Wanderers Football Club Travel Limited | Warrington | 2019 |
| Bolton Wanderers Ladies Football Club Limited | Warrington | 2019 |
| Bolton Wanderers Limited | Warrington | 2019 |
| Bolton Windscreens Limited | Chorley | 2008 |
| Boltro Nominees Limited | | 1999 |
| Bolts Online Limited | Colchester | 2022 |
| BOM Electronic Limited | London | 2021 |
| Bombay Boho Limited | Forest Row | 2015 |
| Bomber Ltd | London | 2021 |
| Bomberk Ltd | Slough | 2021 |
| Bombon Management, Ltd | London | 2019 |
| BON Accord Antiques Limited | Banchory | 2016 |
| BON Accord Renewables Limited | Aberdeen | 2011 |
| BON DIM UK Ltd | Manchester | 2024 |
| BON Voyage Yachting Limited | London | 2025 |
| Bon-Accord Fish Selling Company Limited | | 1939 |
| Bonacare Ltd | Bury St Edmunds | 2023 |
| Bonaccord Ltd | London | 2023 |
| Bonafide Love INT Ltd | London | 2021 |
| Bonakemi Limited | Milton Keynes | 2009 |
| Bonakemi UK Limited | Milton Keynes | 1999 |
| Bonapartes (Leisure) Limited | South Yorkshire | 1986 |
| Bonart Limited | Northampton | 1961 |
| Bond 10 Ltd | Glasgow | 2017 |
| Bond Acquisition Ltd | London | 2021 |
| Bond and Beyond Ltd | London | 2025 |
| Bond Capital Finance Ltd | Northampton | 2015 |
| Bond Contracts Limited | Southam | 2017 |
| Bond Dickinson (Trust Corporation) Limited | London | 2017 |