| Brains 2 Infinity Ltd | Windsor | 2008 |
| Brains at Work Ltd | London | 2012 |
| Brainsprouts Ltd | Coventry | 2015 |
| Braintank Limited | Ilford | 2011 |
| Braintree Estates Limited | Salford | 2024 |
| Brainwavers Limited | London | 2019 |
| Brainway Application Limited | London | 1998 |
| Braishfield Limited | Romsey | 2026 |
| Braiswick Service Station Ltd. | Essex | 1998 |
| Braithwaite Mcdonnell Limited | Belper | 2016 |
| Braithwaite Solutions Ltd | Bishop'S Stortford | 2006 |
| Brak & Brak Limited | Ilford | 2013 |
| Brake Horsepower Ltd | Harrogate | 2012 |
| Brakeburn Limited | Poole | 2014 |
| Brakeleg Limited | Manchester | 2011 |
| Brakeparts Ltd | Lancashire | 2006 |
| Braking Solutions Limited | Richmond | 2002 |
| Bral Trustees Limited | Oldbury | 1999 |
| Bramall Commercials Limited | London | 2006 |
| Bramber 1954 Limited | Belper | 2013 |
| Bramble & Bolt Limited | Doncaster | 2026 |
| Bramble Consulting Limited | Hatfield | 2020 |
| Bramble Lane Management Limited | Bourne End | 2006 |
| Bramble Publishing Limited | Bromley | 1971 |
| Bramblecrest Trustee Limited | Stroud | 2023 |
| Bramblefinch Ltd | London | 2007 |
| Brambleforge Ltd | Doncaster | 2026 |
| Brambles Animal Encounters Limited | Gerrards Cross | 2024 |
| Brambles Farm Tankering Limited | Cromer | 2009 |
| Brambles Residents Association LEA Ltd | Ross-On-Wye | 2011 |
| Brambley Hedge Nursery Limited | London | 2002 |
| Bramdean Limited | Alresford | 2020 |
| Bramin Limited | Bingley | 2023 |
| Bramley Bacon Limited | Craigavon | 2009 |
| Bramley Blinds & Awnings Limited | Cranleigh | 2017 |
| Bramley Capital Ltd | Sevenoaks | 2018 |
| Bramley Court (Loughgall) Management Ltd | Ballyclare | 2005 |
| Bramley Lane (Griston) Management Company Limited | Norwich | 2018 |
| Bramley Motor Cars Limited | Guildford | 2013 |
| Bramley of England Tea Co Limited | Sevenoaks | 2013 |
| Bramley Orchard Limited | Leominster | 2003 |
| Bramley Sunnyside Juniors Football Club Limited | Rotherham | 2007 |
| Brammer & Co Management Company Limited | London | 2018 |
| Brampton Business Park Ventures Limited | Lewes | 2010 |
| Brampton Chase Flooring International Limited | Northampton | 2020 |
| Brampton Chase Flooring Limited | Northampton | 2020 |
| Brampton Hall Gardens Limited | Glasgow | 1995 |
| Brampton Healthcare Limited | Brampton | 2008 |
| Bramptons Limited | Newcastle | 2023 |
| Bramshaw Leisure Ltd | Salisbury | 2015 |
| Branam Limited | Oswestry | 2024 |
| Brancaster Bay Shellfish Limited | King'S Lynn | 2012 |
| Brancaster Links Limited | Wisbech | 1998 |
| Brancaster Sand Limited | Wisbech | 2000 |
| Branch & Root Ltd | Bristol | 2025 |
| Branch Hydraulic Systems Limited | Wilmslow | 1976 |
| Branch Nayoni Trading Co., Limited | Cambridge | 2021 |
| Branch Route International Trading Co Ltd | London | 2025 |
| Branch Shark Limited | London | 2023 |
| Branchwood Ltd | Newcastle Upon Tyne | 2003 |
| Branchwood NO.1 Ltd | Newcastle Upon Tyne | 2011 |
| Brand & Deliver Ltd | London | 2018 |
| Brand Elevation Limited | Huntingdon | 2005 |
| Brand Ideators Limited | Bury St. Edmunds | 2024 |
| Brand Managers Limited | Harrow | 2000 |
| Brand Market Group Limited | Leeds | 2025 |
| Brand Media Group Limited | Bolton | 2025 |
| Brand Muse Co. (NE) Limited | Newcastle Upon Tyne | 2020 |
| Brand New Theatre Productions Ltd | Peacehaven | 2021 |
| Brand Packaging Limited | Sale | 2015 |
| Brand Refill Limited | Banbury | 2011 |
| Brand Retail Solutions Limited | Milton Keynes | 2005 |
| Brand Revolution Limited | St. Austell | 2024 |
| Brand Seen Limited | Hertford | 2012 |
| Brand Steward Limited | Surrey | 2007 |
| Brand UP Ltd | Harrow | 2006 |
| Brand Vermoegensverwaltung Ltd | London | 2023 |
| Brand Vision Management Ltd | Coventry | 2020 |
| Brand Vision Worldwide Limited | London | 2011 |
| Brand Watches and Diamonds Limited | Hertford | 2012 |
| Brandboost Limited | Colchester | 2001 |
| Brandboost Marketing Ltd | Beaconsfield | 2009 |
| Brandcast Health Limited | Chipping Norton | 1999 |
| Brandcast Limited | Chipping Norton | 2008 |
| Branded Biker Limited | Boston | 2009 |
| Brandei Limited | London | 2025 |
| Brandels Limited | Blackpool | 1965 |
| Brandenburg Properties Limited | Belfast | 1999 |
| Branders Allservice Limited | London | 2025 |
| Brandfunk Ltd | Rochester | 2022 |
| Brandguard Ltd | Bath | 2025 |
| Brandhit Limited | Stevenage | 2004 |
| Brandility Ltd | London | 2025 |
| Brandize UK Limited | Gloucester | 2003 |
| Brandlings Way 1966 Limited | Peterlee | 2014 |
| Brandon 1956 Limited | Hull | 2015 |
| Brandon 1964 Limited | Thetford | 2014 |
| Brandon Court Management Company Limited | Birmingham | 1989 |
| Brandon Cyclesports Ltd | Hawick | 2025 |
| Brandon Hire Group Holdings Limited | Harrogate | 2010 |