| Best Quality of Care Ltd | Telford | 2019 |
| Best Resonant Health Ltd | Inverness | 2023 |
| Best Sauna Ltd | Spalding | 2019 |
| Best Skincare Clinic Limited | Leeds | 2020 |
| Best Smile Aesthetics Ltd | Eastbourne | 2019 |
| Best Solution Care Ltd | London | 2024 |
| Best Start Daycare Ltd | Wirral | 2021 |
| Best Support Care Ltd | Nottingham | 2019 |
| Best Tender Care Ltd | Lincoln | 2024 |
| Best Therapies Ltd | Rayleigh | 2022 |
| Best to Best Healthcare Ltd | Leamington Spa | 2023 |
| Best UK Care Ltd | Nottingham | 2019 |
| Best Ultrasound Clinic Ltd | London | 2020 |
| Best United Ltd | Rotherham | 2019 |
| Best Value Ltd | Harlow | 2015 |
| Best Way Healthcare Ltd | Swindon | 2024 |
| Best West Bridgford Home Care Ltd | Leicester | 2021 |
| Best Years Care Ltd | Leeds | 2020 |
| Best YOU Clinic Ltd | Torpoint | 2026 |
| Best YOU Prescribers Limited | Crewe | 2025 |
| Best-Option Childcare Services Limited | Waltham Abbey | 2026 |
| BEST2 Care Ltd | Gravesend | 2018 |
| Best@Care Limited | Isleworth | 2019 |
| Bestamov Specialist Ltd | Hounslow | 2020 |
| Bestbait Trading Recruitment Ltd | Tipton | 2024 |
| Bestcare Agency & Recruitment Limited | Bradford | 2014 |
| Bestcare Health Limited | Erith | 2014 |
| Bestcare Ltd | Leicester | 2004 |
| Bestcare Plus Services Ltd | Dudley | 2025 |
| Bestcare UK Limited | Manchester | 2000 |
| BESTCARE24 Ltd | Southampton | 2021 |
| Bestchoice Global Ltd | Dagenham | 2016 |
| Bestfield Education Development Limited | Milton Keynes | 2018 |
| Bestfostering Ltd | Hinckley | 2025 |
| Bestgutu Care Ltd | Aylesbury | 2018 |
| Besthetics Ltd | London | 2024 |
| Besthopes Coaching and Consulting Limited | Manchester | 2017 |
| Bestican Manor DOM Care and Support Services Ltd | Romford | 2025 |
| Bestiz Ltd | London | 2025 |
| Bestleks Ltd | Harlow | 2020 |
| Bestlife International Ltd | Milton Keynes | 2024 |
| Bestlife Limited | Liverpool | 2025 |
| Bestline Care Ltd | Dagenham | 2017 |
| Bestman Care Ltd | Coventry | 2023 |
| Bestme Ltd | Verwood | 2006 |
| Bestmedcare Ltd | Coventry | 2018 |
| Bestobell Founders Welfare Trust Limited | London | 1948 |
| Bestofall Limited | Liverpool | 2025 |
| Bestpath Consulting Ltd | Rotherham | 2025 |
| Bestrad Limited | Norwich | 2013 |
| Bestsaidbyu Community Interest Company | Hemel Hempstead | 2025 |
| Bestsmiles Practice Limited | Aylesbury | 2021 |
| Bestspot Care UK Limited | Dartford | 2026 |
| Bestswitch Ableservices Ltd | Southsea | 2024 |
| Besttalk Limited | Stockport | 2022 |
| Bestun Dent Ltd | Gateshead | 2026 |
| Bestway Care Services Limited | Tilbury | 2020 |
| Bestway Healthcare Services Limited | Darwen | 2023 |
| Bestway Healthcare Solutions Ltd | Manchester | 2021 |
| Bestway Management Ltd. | Leicester | 2019 |
| Bestway Support Limited | Middlesex | 2023 |
| Bestwaycarehome Ltd | Plymouth | 2025 |
| Bestyou Therapies Ormeno Limited | Newport-On-Tay | 2019 |
| Besund Limited | Suffolk | 2012 |
| Beswick Medicolegal Limited | Newtownards | 2025 |
| Beswick Resources Ltd | Halesowen | 2002 |
| BET & DON Ltd | Milton Keynes | 2019 |
| BET on ME Ltd | London | 2019 |
| Beta Glyco Ltd | London | 2024 |
| Beta Health Care Solutions Limited | Aberdeen | 2025 |
| Beta Health Ltd | London | 2020 |
| Beta Healthcare Ltd | London | 2023 |
| Beta North Limited | Darlington | 2012 |
| Beta One Limited | Maidstone | 2005 |
| Beta RHO Limited | Milton Keynes | 2016 |
| Beta Social Care Ltd | Leeds | 2017 |
| Beta U+ Ltd | Warrington | 2025 |
| Beta-Lambda Care Services Ltd | Derby | 2021 |
| Betacare Limited | London | 2014 |
| Betalogic Ltd | Harrow | 2023 |
| Betamindes Limited | Crewe | 2005 |
| Betapem Ltd. | Southampton | 2015 |
| Betbalance Health Ltd | Ealing | 2025 |
| Betchay Limited | Antrim | 2020 |
| Betemps Limited | Cardiff | 2023 |
| Beth Angels Childcare Services Ltd | London | 2020 |
| Beth Care Limited | Bilston | 2024 |
| Beth Care Services Ltd | London | 2013 |
| Beth Cate Performance Ltd | Moreton-In-Marsh | 2025 |
| Beth Cordrey Occupational Therapy Ltd | Stourport-On-Severn | 2023 |
| Beth David Salomons Limited | London | 1954 |
| Beth Davs Healthcare Services Ltd | Gravesend | 2019 |
| Beth Forrest Ltd | Epsom | 2007 |
| Beth Gibbons Physiotherapy Limited | Fareham | 2016 |
| Beth Goodburn Ltd | Brixham | 2024 |
| Beth Homes Organisation Limited | Stoke-On-Trent | 2019 |
| Beth J Limited | Sittingbourne | 2018 |
| Beth Jacob Grammar School for Girls Limited | London | 1966 |
| Beth Kelsall Counselling Ltd | Beverley | 2022 |
| Beth Living Support Ltd | Ilford | 2026 |