| Bushgrove (Manchester) Limited | Manchester | 2024 |
| Bushley Limited | St. Albans | 1984 |
| Bushmills Water Ltd | Castledawson | 2016 |
| Bushrise Services Ltd | Co Londonderry | 2007 |
| Bushwood Drive (Dorridge) Management Company Limited | Solihull | 2013 |
| Busi-Jacobsohn Wine Estate Limited | Tunbridge Wells | 2017 |
| Busif (UK) Crop Nutrition Co., Ltd | Cardiff | 2017 |
| Business & Tax Solutions Ltd | Northwich | 2003 |
| Business About YOU Ltd | Manchester | 2025 |
| Business Accounts Solutions Limited | London | 2013 |
| Business and Technology Development Ltd | London | 2025 |
| Business AS Usual Limited | Coventry | 1993 |
| Business Assistance Limited | Oxford | 2024 |
| Business Bar Club Limited | Waterlooville | 2002 |
| Business Bar Limited | Waterlooville | 2002 |
| Business Beckinsale Limited | Brighton | 2015 |
| Business Bees Ltd | Ely | 2025 |
| Business Beverages (South West) Limited | Leeds | 1997 |
| Business Challengers Limited | Colindale | 2012 |
| Business Class UK Ltd | Bishop Auckland | 2021 |
| Business Computers Ltd | Canterbury | 2025 |
| Business Continuity Centres Limited | Maidenhead | 2003 |
| Business Cornwall Limited | Cambourne | 2006 |
| Business Credit Management Services Limited | Cardiff | 2007 |
| Business Data Supplies Limited | Worthing | 1980 |
| Business Development Specialists Limited | Hampshire | 1991 |
| Business Development Sweden Limited | London | 2025 |
| Business DOT COM Ltd | Harrogate | 2012 |
| Business Energy Team Ltd | London | 2014 |
| Business Exchange Holdings Limited | London | 1997 |
| Business Expo Limited | Park Farm Hotel, Norwich Road | 2018 |
| Business First Bookkeeping Services Limited | Bordon | 2025 |
| Business First Sales Ltd | Belfast | 2022 |
| Business FM Limited | Harrogate | 2015 |
| Business for Sale (UK) Limited | Birmingham | 2008 |
| Business Futures Network Limited | Hampton | 1990 |
| Business Genie Limited | Northallerton | 1997 |
| Business Headsets Ltd | High Wycombe | 2022 |
| Business Helpline Services Ltd | Aldershot | 2007 |
| Business Improvement Consulting Service Ltd | Aldershot | 2007 |
| Business Inception Limited | Lancing | 2023 |
| Business Incubator C.I.C. | London | 2015 |
| Business Locus Limited | London | 2013 |
| Business Ltd | London | 2002 |
| Business Made Simple Limited | London | 2005 |
| Business Modelling Applications Limited | Chester | 2022 |
| Business Modelling Limited | London | 2016 |
| Business News Group Ltd | Walsall | 2021 |
| Business Nous Ltd. | Newquay | 2014 |
| Business of the Month Limited | West Yorkshire | 2006 |
| Business of the Year Limited | West Yorkshire | 2006 |
| Business Plan Ltd | London | 2016 |
| Business Powerhouse Ltd | London | 2020 |
| Business Rates Advisors Limited | Cheadle | 2020 |
| Business Re-Engineering Group Limited | London | 1992 |
| Business Relocations Limited | Southampton | 2024 |
| Business Research & Technologies Ltd | London | 2000 |
| Business Samaritans Limited | Barnsley | 2023 |
| Business Samaritans UK Ltd | Barnsley | 2011 |
| Business Sense Accountancy Services Limited | Swansea | 2015 |
| Business Sense Consulting Ltd | Bristol | 2025 |
| Business Sense Futures Limited | Swansea | 2018 |
| Business Sense Limited | Swansea | 2026 |
| Business Sense Payroll Services Limited | Swansea | 2015 |
| Business Services Limited | Essex | 2004 |
| Business Solutions (GB) Limited | Bromley | 1998 |
| Business Space Limited | London | 1999 |
| Business Square Limited | London | 2010 |
| Business Strategy Group Ltd | Devon | 2023 |
| Business Success Matrix Limited | Bristol | 2013 |
| Business Team Ltd | Brighton & Hove | 2016 |
| Business Telecoms Limited | London | 2009 |
| Business Think Ltd | Bude | 2011 |
| Business Through Stories Limited | Tiverton | 2024 |
| Business to Business Internet Limited | Beaconsfield | 2004 |
| Business Treasury Company Limited | Exeter | 2026 |
| Business Vision Market Research Limited | University Way Cranfield | 1997 |
| Business Vitamins Limited | London | 2002 |
| Business Wealth Academy Ltd | Lytham St. Annes | 2020 |
| Business Workspace Solutions Ltd | Canvey Island | 2018 |
| Business Writing Solutions Limited | Fleet | 2010 |
| Business-Work-Ware Limited | Barnstaple | 2009 |
| Businesscom Ltd | London | 2004 |
| Businesslegal Secretaries Ltd | Knutsford | 2000 |
| Businessmate Ltd | Cambridge | 2022 |
| Businesssense@Thebusinesscentre Limited | Swansea | 2015 |
| Businessway (UK) Limited | Manchester | 2002 |
| Busjam Developments Limited | Edgeware | 1962 |
| Busreisen International Ltd | Manchester | 2016 |
| Bussey-Hewitt Wools Limited | Bingley | 1999 |
| Busslip Limited | Northolt | 2024 |
| Bussy Inc Limited | Croydon | 2023 |
| Bustle Hub Limited | Worcester | 2023 |
| Bustle Technology Ltd | Beckenham | 2020 |
| Busy Bea's Limited | Dunfermline | 2023 |
| Busy BEE Cleaning Basingstoke Limited | Basingstoke | 2025 |
| Busy BEE Takeaway Limited | Bolton | 2012 |
| Busy Bees Limited | Birmingham | 1947 |
| Busy Bees Property Ltd | Stoke-On-Trent | 2019 |
| Busy Business Limited | Hatfield | 1995 |