| Barn END Events Ltd | Didcot | 2014 |
| Barn Farm Campsite Limited | Derbyshire | 2005 |
| Barn Farm Estates Management Limited | Hailsham | 2015 |
| Barn Gym Ltd | Etchingham | 2022 |
| Barn Hunt UK Ltd | London | 2022 |
| Barn on the Farm Limited | London | 2013 |
| Barn Padel Limited | Shaftesbury | 2025 |
| Barn Publishing (Slade) Limited | London | 1974 |
| Barn SPV 1 Limited | Cirencester | 2023 |
| Barn SPV 3 Limited | Cirencester | 2023 |
| Barn Theatre Club Limited | Welwyn Garden City | 1963 |
| Barn Theatre Trust Limited(The) | Welwyn Garden City | 1981 |
| Barnaby Dixon Ltd | London | 2016 |
| Barnaby Philpott Music Ltd | Bedford | 2025 |
| Barnan Limited | London | 2022 |
| Barnard Castle CC Trading Limited | Barnard Castle | 2016 |
| Barnard Castle Cricket Club Limited | County Durham | 2016 |
| Barnard Castle Meet Limited | Barnard Castle | 2014 |
| Barnard Castle Youth Football Club Limited | Barnard Castle | 2005 |
| Barnbrook Ltd. | London | 2009 |
| Barnes Active CIC | Stagsden | 2024 |
| Barnes Comedy Limited | London | 2018 |
| Barnes Community Players Ltd | London | 2013 |
| Barnes Designs Limited | Worcester | 2025 |
| Barnes Fitness Limited | Woking | 2013 |
| Barnes Football Club Limited | London | 2021 |
| Barnes Green Riding School Limited | Sheffield | 2002 |
| Barnes Health & Fitness Limited | London | 1991 |
| Barnes Music Limited | London | 2013 |
| Barnes Playball Ltd | London | 2023 |
| Barnes Rugby Football Club | Barnes | 2016 |
| Barnes Sports Club Limited(The) | Barnes | 1920 |
| Barnet Combat Academy Ltd | Pinner | 2020 |
| Barnet Elizabethans Rugby Football Club Limited | Hatfield | 2010 |
| Barnet Football Club Academy Limited | London | 2024 |
| Barnet Football Club Holdings Limited | London | 2014 |
| Barnet Football Club in the Community Limited | London | 2025 |
| Barnet Football Club Limited | London | 1976 |
| Barnet Symphony Productions Ltd | London | 2018 |
| Barnett Creative Solutions Ltd | London | 2023 |
| Barnett Racket Sports Ltd | Hereford | 2013 |
| Barney O'Hare Limited | Newry | 2021 |
| Barneyracing Ltd | Lincoln | 2020 |
| Barnfit Ltd | Llangefni | 2025 |
| Barnford Productions Ltd | Tarporley | 2024 |
| Barnhurst Lane Lions FC Limited | Wolverhampton | 2023 |
| Barnoldswick Town F C Limited | Kelbrook | 2022 |
| Barns at Gorley Limited | Fordingbridge | 2025 |
| Barnsley Barbell Limited | Barnsley | 2016 |
| Barnsley Bowl Limited | Lincoln | 2002 |
| Barnsley Civic Enterprise Limited | Barnsley | 2006 |
| Barnsley FC Community Trust Limited | South Yorkshire | 2007 |
| Barnsley Football Club Limited | South Yorkshire | 2002 |
| Barnsley Golf Club Ltd | Barnsley | 2011 |
| Barnsley Gymnastics Club Limited | Barnsley | 2008 |
| Barnsley Live CIC | Barnsley | 2024 |
| Barnsley Padel Club Limited | Barnsley | 2025 |
| Barnsley Premier Leisure | Barnsley | 1999 |
| Barnsley Riding for the Disabled Association | South Yorkshire | 2006 |
| Barnsley Rugby Union Football Club Limited | Barnsley | 2012 |
| Barnsley Theatre Trust (1998) Limited | Barnsley | 1993 |
| Barnsley Women's Football Club Limited | Barnsley | 2018 |
| Barnsley Women's Football ETC Limited | Barnsley | 2022 |
| Barnstaple and North Devon Museum Development Trust | Barnstaple | 2013 |
| Barnstaple Musical Comedy & Dramatic Society | Barnstaple | 2006 |
| Barnstaple Slots Limited | Ilfracombe | 2026 |
| Barnstaple Town Football Club (2014) Limited | Torquay | 2014 |
| Barnstorm Productions Limited | Wincanton | 2022 |
| Barnstorm Theatre Community Interest Company | Longhope | 2022 |
| Barnstormer Holdings | Bromsgrove | 2017 |
| Barnstormers Comedy Limited | Beverley | 2003 |
| Barnt Green Sports Club | Birmingham | 2016 |
| Barnt Green Waters Limited | Birmingham | 1920 |
| Barnwell Music Ltd | Shefford | 2019 |
| Barnwood & District Bowling & Tennis Ground Company Limited | Gloucester | 1922 |
| Barnwood Fitness Ltd | Gloucester | 2017 |
| Barnwood United AFC Limited | Gloucester | 2023 |
| Baron Courts of Prestoungrange & Dolphinstoun Limited | East Lothian | 2002 |
| Baron Entertainment Limited | London | 2019 |
| Baron Hill Golf Club Limited | Anglesey | 1995 |
| Baron Jacob VON Ratzeburg Limited | Bolton | 2025 |
| Baroness Music Ltd | London | 2023 |
| Baronet Entertainment Limited | London | 2011 |
| Baroquestock CIC | London | 2023 |
| Barr Leisure Limited | Bellshill | 1994 |
| Barr Team Ltd | London | 2025 |
| Barr&Co Ltd | Bournemouth | 2024 |
| Barr's Big Bang's Limited | Luton | 2023 |
| Barra Hall Community Development Committee | Hayes | 2003 |
| Barracks Fitness Limited | Newcastle-Under-Lyme | 2024 |
| Barracks Lane Community Garden Project | Oxford | 2006 |
| Barracuda Leisure Ltd | Bromsgrove | 2020 |
| Barre & Beyond Ltd | Belfast | 2025 |
| Barre Collective Limited | Twickenham | 2021 |
| Barre Physique Limited | Winchester | 2018 |
| Barre SET Ltd | Farnborough | 2022 |
| Barreconcept International Limited | Sunderland | 2019 |
| Barrecore Holdings Limited | London | 2022 |
| Barrecore Islington Limited | London | 2022 |
| Barrecore Kensington Limited | London | 2022 |