| BOW Health Network CIC | London | 2014 |
| BOW House Holdings Limited | Basingstoke | 2018 |
| Bowbridge MCO Ltd | Notts | 2024 |
| Bowbrook Care Home Limited | Shrewsbury | 2024 |
| Bowburn Healthcare Ltd | Stockton-On-Tees | 2021 |
| Bowden Derra Park Limited | Launceston | 2000 |
| Bowden Leisure Limited | Plymouth | 2020 |
| Bowden Physiotherapy Limited | Plymouth | 2011 |
| Bowdenca Limited | Rotherham | 2009 |
| Bowditch Medical Limited | Romsey | 2019 |
| Bowdlers House Dental Practice Limited | Ellesmere Port | 2023 |
| Bowdon Medical Services Ltd | Manchester | 2022 |
| Bowe Psychology Ltd | Old Hall Road | 2022 |
| Bowel Cancer UK | London | 1997 |
| Bowel Cancer West | Plymouth | 2010 |
| Bowel Care Ltd | London | 2022 |
| Bowel Control UK Ltd | Poole | 2024 |
| Bowel Surgery London Limited | Lincoln | 2012 |
| Bowelsurgeon Ltd | Lincoln | 2010 |
| Bowelsurgeryclinic Ltd | Bradford | 2020 |
| Bowen Dental Engineering Ltd | Cardiff | 2019 |
| Bowen School for Wellness Limited | Bp. Auckland | 2015 |
| Bowen-Thomas Limited | Fareham | 2012 |
| Bowercroft Care Limited | Greenford | 2014 |
| Bowerfield House Limited | Leeds | 1988 |
| Bowerham Kids Club | Lancaster | 2010 |
| Bowermans Limited | Cardiff | 2024 |
| Bowers & Mackinnon Optical Limited | Sunderland | 2006 |
| Bowers Opticians Limited | Crewe | 2002 |
| Bowers Way Surgery Ltd | Harpenden | 2018 |
| Bowerswood House Retirement Home Limited | Preston | 2004 |
| Bowhite Ltd | Bristol | 2026 |
| Bowland Care Services Ltd | Preston | 2014 |
| Bowland Health Ltd | Clitheroe | 2018 |
| Bowland House Psychiatry Limited | Leeds | 2026 |
| Bowland Preschool Limited | Clitheroe | 2017 |
| Bowland Psychological Services Ltd | Bury | 2011 |
| Bowler Ophthalmology Ltd | London | 2022 |
| Bowlers Court Ltd | Leeds | 2013 |
| Bowling Green Dental Care Ltd. | Coventry | 2017 |
| Bowling Green Dental Surgery Limited | Stevenage | 2013 |
| Bowman Medical Limited | Eastbourne | 2022 |
| Bowmedic Ltd | London | 2013 |
| Bowmor Ltd | Newport | 2013 |
| Bowood Care Homes Limited | Hinckley | 2014 |
| Bowthorpe Community Trust | Norwich | 2012 |
| Bowtree Homecare Ltd | Rossendale | 2021 |
| Box 1 Crossfit (Airdrie) Ltd | Airdrie | 2015 |
| Box Anaesthesia Ltd | Thame | 2023 |
| Box Courses Limited | Romsey | 2016 |
| Box END Physiotherapy Limited | Bedford | 2026 |
| Box ME a Rice Ltd | Milton Keynes | 2013 |
| Box Smart Solutions Limited | Fareham | 2026 |
| Box Tree Clinic Limited | Borehamwood | 2016 |
| Box Tree Cottage Cambridge Limited | Waterbeach | 2013 |
| Boxclub CIC | Hull | 2024 |
| Boxed Hope Ltd | Sevenoaks | 2021 |
| Boxes of Hope CIC | Spalding | 2022 |
| Boxgrove Care Services Limited | London | 2024 |
| Boxing Makes YOU Better CIC | New Malden | 2024 |
| Boxivation Ltd | Wallington | 2020 |
| Boxrooms Ltd | Bury | 2019 |
| Boxtree Ltd | Walsall | 2025 |
| Boxupcrime | Dagenham | 2013 |
| Boyack Enterprises Limited | Slough | 2001 |
| Boyanm Ltd | Godalming | 2019 |
| Boyce Care Ltd | Ashford | 2007 |
| Boychu Limited | Gillingham | 2023 |
| Boyd Care Limited | Glasgow | 2013 |
| Boyden-Hare Limited | Darwen | 2015 |
| Boyds International Life Sciences Group Limited | Crewe | 2021 |
| Boye Services Ltd | Weston-Super-Mare | 2023 |
| Boyede & Sons Ltd | Luton | 2022 |
| Boyega Wellness Inc. Limited | Greenwich | 2024 |
| Boyem Global Resources Ltd | London | 2022 |
| Boyle Dental Ltd | Rutherglen | 2021 |
| Boynat MED Ltd | Oxford | 2015 |
| Boyndie Dental Care Limited | Banff | 2015 |
| Boys & Girls Nursery (Watford) Limited | Cornwall | 2007 |
| Boys Empowerment Initiative Manchester CIC | Manchester | 2024 |
| Boys' and Girls' Clubs of Scotland | Ayr | 1983 |
| Boysie Ltd | Luton | 2017 |
| Boyson Healthcare Ltd. | Warwick | 2014 |
| Boytalk CIC | Cardiff | 2026 |
| BOYZ2MEN CIC | Manchester | 2025 |
| Boyzmedic Ltd | Huntingdon | 2016 |
| Bozca-Der Charity | London | 2008 |
| Bozpo Limited | Chipping Norton | 1998 |
| BP & SA Limited | Sunderland | 2024 |
| BP Aesthetics Limited | Thaxted | 2019 |
| BP Carelink Limited | Preston | 2024 |
| BP Case Management Ltd | Sittingbourne | 2026 |
| BP Consultancy Ltd | Corsham | 2016 |
| BP Dental Limited | London | 2023 |
| BP Eyecare Limited | Sidcup | 2008 |
| BP Health Limited | Walsall | 2019 |
| BP Healthcare Limited | Clogher | 2014 |
| BP Legacy Health Solutions Ltd | Greater Manchester | 2026 |
| BP Partners Ltd | London | 2022 |
| BP Physiotherapy Ltd | Newcastle Upon Tyne | 2023 |