| Bosc Childcare Ltd | Royston | 2019 |
| Boscarnek Health Ltd | Penzance | 2017 |
| Bosch Medical Limited | London | 2005 |
| Bosco Cardiac Surgery Ltd | London | 2022 |
| Bosco Dental Studio Ltd | Lauder | 2025 |
| Bosco L Ltd | London | 2026 |
| Boscombe Care Homes Limited | Southend-On-Sea | 2003 |
| Bose Care Ltd | Bedford | 2016 |
| Bose Medical Consultancy Services Ltd | Manchester | 2014 |
| Bose Radiology Ltd | London | 2022 |
| Bosence Farm Community Limited | Hayle | 2001 |
| Boset 4 Limited | Birmingham | 2012 |
| Bosham Dental Laboratory Limited | Chichester | 2005 |
| Bosham Holdings Limited | Chichester | 2025 |
| Boshnaq Surgeon Limited | Bromborough | 2023 |
| Boslyn Love Initiative Ltd | London | 2023 |
| Bosma Spinal Surgery Ltd. | Birmingham | 2011 |
| Bosmik Ltd | Croydon | 2018 |
| Bosnurs JPT Ltd | Dagenham | 2026 |
| Bosola Limited | Reading | 2015 |
| Bosp Brighter Opportunities for Special People | Basildon | 2004 |
| Boss & Angie Company Ltd | London | 2020 |
| Boss Kids Nurseries Limited | Ilford | 2025 |
| Boss Lady Ltd | Linwood | 2022 |
| Bossa Health Ltd | London | 2024 |
| Bossjojo Limited | Milton Keynes | 2017 |
| Bossmanservices Limited | Newcastle | 2022 |
| Bossy Healthcare Ltd | London | 2023 |
| Bost Clinic Limited | Wembley | 2011 |
| Bostaca Healthcare Limited | London | 2022 |
| Bostan Health Care Limited | Nottingham | 2010 |
| Bostan Medical Services Limited | Keighley | 2012 |
| Boston Aesthetics Clinic Ltd | Camberley | 2025 |
| Boston Care Company Limited | Bury St. Edmunds | 2009 |
| Boston Dental HQ Limited | Peterborough | 2026 |
| Boston GMD Limited | Bexleyheath | 2012 |
| Boston Imaging Group Ltd | Boston | 2022 |
| Boston Medical Associates Limited | Torquay | 2017 |
| Boston Medical Group Ltd | London | 2018 |
| Boston Medical(Uk) Ltd | Torquay | 2018 |
| Boston Primary Care Network Ltd | Boston | 2022 |
| Boston Spa Aesthetics Ltd | Leeds | 2025 |
| Boston Upper Limb Ltd | Boston | 2023 |
| Bostonfitness Ltd | Manchester | 2025 |
| Bosun Care Limited | Gloucester | 2016 |
| Bosville Limited | Enfield | 2003 |
| Boswell Healthcare Ltd | Maidenhead | 2006 |
| Bosworth Care Home (Dorset) Ltd | Dorchester | 2015 |
| Bosworth Children's Care Ltd | Leicester | 2025 |
| Bosworth Dental Limited | Nuneaton | 2008 |
| Bosworth Lakeside Retreat Ltd | Leicester | 2025 |
| Bosworth Wood Community Day Nursery CIC | Solihull | 2021 |
| Botak Healthcare Limited | Sutton Coldfield | 2024 |
| Botak Medcare Ltd | Billingham | 2025 |
| Botanic Lodge Nursery Limited | Liverpool | 2013 |
| Botanic Thai Massage Ltd | Belfast | 2024 |
| Botanica BPC 1 Limited | Slough | 2026 |
| Botanica Holistic Therapy Ltd | Teignmouth | 2023 |
| Botanica Medica Ltd | Petersfield | 2003 |
| Botanical ENG Limited | Birmingham | 2016 |
| Botanics Dental Care Ltd | Glasgow | 2014 |
| Botanitech Consumer Health Limited | London | 2025 |
| Botanix Clinic Limited | Treorchy | 2025 |
| Botany House 32 Ltd | Walsall | 2025 |
| Botany House Limited | Oldham | 2003 |
| Botany Medics Ltd. | Enfield | 2014 |
| Botch Limited | Slough | 2014 |
| Botchey Medical Ltd | Chatham | 2019 |
| Botem Health Care (BHC) Ltd | London | 2018 |
| Both Parents Matter | London | 1978 |
| Both Sides Retreats Ltd | Liverpool | 2025 |
| Botha Medical Limited | Hornchurch | 2005 |
| Botha-Pietersen Limited | Stansted | 2018 |
| Botham Medical Limited | Cheshire | 2018 |
| Botho Medical Consulting Limited | Edinburgh | 2024 |
| Bothwell Care Limited | Edinburgh | 2015 |
| Bothwell Clinic Limited | Glasgow | 2006 |
| Bothwell OUT of School Care Ltd. | Larkhall | 2006 |
| Bothwells Ltd | Northwood Hills | 2001 |
| Botley Bridges | Oxford | 2016 |
| Botley Optical Limited | Darwen | 1998 |
| Botonics Limited | Horsham | 2007 |
| Botorito Ltd | Coventry | 2024 |
| Botox Academy Limited | Long Eaton | 2023 |
| Botox Shop Ltd | London | 2020 |
| Botree Nutrition Ltd | Upminster | 2021 |
| Botta Limited | Manchester | 2019 |
| Bottesford Dental Practice Limited | Beeston | 2010 |
| Bottomline Services Limited | Basingstoke | 2023 |
| Bottt Ltd | London | 2023 |
| Bouba & Morane Ltd | Manchester | 2015 |
| Boubal Limited | Salford | 2023 |
| Boucherne Ltd | Maldon | 2002 |
| Bougainvillea Care Ltd | Maidstone | 2025 |
| Bougainvillea Healthcare Ltd | Maidstone | 2024 |
| Bouge Avec MOI Studio Ltd | Poole | 2024 |
| Boughey Trust Company Limited(The) | Shrewsbury | 1937 |
| Boughton Green Road Limited | Kingsthorpe | 2020 |
| Boujee Aesthetics Services Ltd | Derby | 2022 |
| Boukeffa Ltd | Manchester | 2025 |