| Balila Limited | Dundee | 2024 |
| Balita Limited | Dorking | 2018 |
| Balmedie Pet Crematorium Limited | Aberdeen | 2008 |
| Balsci Ltd | Stourbridge | 2025 |
| Baltic Safety Limited | London | 2018 |
| Bame Health Collaborative (BHC) Ltd | London | 2021 |
| Bamfo Ltd | Rayleigh | 2020 |
| Banabi Childcare Ltd | Tilbury | 2020 |
| Banafsh Care Ltd | Waltham Abbey | 2022 |
| Bangladesh Doctors' Association UK Ltd | Ilford | 2025 |
| Bangladesh International Association Limited | London | 2021 |
| Bannau Services Ltd | Ebbw Vale Gwent | 2024 |
| Banner Fire & Safety Limited | Birmingham | 2023 |
| Bantu Inventory Services Ltd. | London | 2018 |
| Banyan Blossom Health Care Ltd | Ilford | 2026 |
| Baraka Healthcare Ltd | Eastbourne | 2019 |
| Barbiry Ltd | Warrington | 2023 |
| Barbon Fire Protection Limited | Widnes | 2025 |
| Barclay for Business Ltd | Hemel Hempstead | 2025 |
| Barden Support Services Ltd | Bideford | 2025 |
| Bariatric Solutions UK Limited | Warwick | 2023 |
| Bark & Co Solicitors Limited | London | 2010 |
| Barker & Wolf Ltd | Christchurch | 2025 |
| Barker Consultancy Management Ltd | Redcar | 2024 |
| Barnicoat Ltd | St. Neots | 2011 |
| Barracuda Solutions Ltd | Chorleywood | 2026 |
| Barrett Mcgrath Education & Mentoring Services Limited | Dungannon | 2018 |
| Barry Services Limited | Coventry | 2025 |
| Bartley Green Community Hub CIC | Birmingham | 2024 |
| BAS Books Ltd | London | 2010 |
| Base Care Foundation Ltd | Finchley | 2020 |
| Base Support Services Ltd | Cardiff | 2011 |
| Baseline Rehabilitation Ltd | Ilford | 2020 |
| Basil Investment Ltd | Telford | 2023 |
| Basildon Side by Side CIC | Basildon | 2021 |
| Bassett Education Limited | Burntwood | 2018 |
| Bath & West Fire & Safety Ltd | Trowbridge | 2019 |
| Battery Guardian Limited | Wakefield | 2025 |
| Bauer Security Limited | Horley | 2009 |
| Bawdengroup Ltd | Duns | 2025 |
| Bawtry Health Ltd | Doncaster | 2024 |
| Baxenden Therapy Hub Ltd | Accrington | 2025 |
| Bayan CIC | Manchester | 2024 |
| Bayday Services Ltd | London | 2025 |
| Bazalgette Consultancy Ltd | Broadstone | 2026 |
| Bazn Ltd | Boldon Colliery | 2020 |
| BB Fire Ltd | Brackley | 2018 |
| BB Fire Safety Ltd | Gillingham | 2021 |
| BBE NJS Care Limited | Leeds | 2025 |
| Bbis Cyclos Security Ltd | Cardiff | 2026 |
| BBO Fire Ltd | Eastbourne | 2024 |
| Bbrcommunity Ltd | Bedford | 2024 |
| BC Care and Repair Services Ltd | Sheffield | 2020 |
| BC Inspection Services Ltd | Dorking | 2023 |
| BC Physiotherapy Ltd | Redhill | 2025 |
| Bcde CIC | Morden | 2025 |
| BCH Fire Protection Ltd | Portsmouth | 2026 |
| Bctp Ltd | Shoreham-By-Sea | 2025 |
| BD28 Group Ltd | Selby | 2019 |
| Bdollifieduk Limited | Grays | 2026 |
| BDR 03 Ltd | Cardiff | 2020 |
| BDR 09 Ltd | Cardiff | 2020 |
| BE Care Limited | Wolverhampton | 2022 |
| BE Caring Communities Ltd | Newcastle Upon Tyne | 2024 |
| BE in Bloom Therapy Ltd | Oldham | 2025 |
| BE YOU Therapy Limited | Warrington | 2026 |
| BEA Physio Ltd | London | 2021 |
| Beaa KAY Limited | London | 2020 |
| Beam of Hope Care Ltd | Ashby-De-La-Zouch | 2023 |
| Beannchor Systems Engineering Ltd | Bangor | 2022 |
| Bear Fire Services Limited | West Malling | 2026 |
| Beasco Healthcare Ltd | London | 2025 |
| Beatus Limited | Macclesfield | 2023 |
| Beaufort Kibble Ltd | Glasgow | 2022 |
| Beaufort Nine Limited | London | 2013 |
| Beautiful Gate Ltd | London | 2024 |
| Beautiful Mind Learning LAB Limited | Bruton | 2025 |
| Bebeko Ltd | Liverpool | 2020 |
| BECAUSE2 Limited | York | 2021 |
| Beckyhealthcare Ltd | Grimsby | 2018 |
| Beco Compliance Limited | Didcot | 2021 |
| Bedfordshire Fire Alarms Ltd | Luton | 2023 |
| Bedminster Town Team Limited | Southville | 2013 |
| Bee-Assisted Limited | London | 2020 |
| Beedie Psychology Services Ltd | Westhill | 2023 |
| Beelifts Coaching Ltd | Abertillery | 2023 |
| Befitting Supportive Care Limited | Swindon | 2023 |
| Behind the Mask of MUM & DAD Ltd | Stockport | 2022 |
| Beleznai Ltd | Shepton Mallet | 2020 |
| Belfount Limited | London | 2024 |
| Belgrave Fire Management Ltd | Epsom | 2024 |
| Belle and James Ltd | Eastleigh | 2022 |
| Belonging@Work Ltd | Kingsbridge | 2025 |
| Belridev Healthcare Limited | Liverpool | 2021 |
| BEN and Theresa Community Health Care Services Limited | Watford | 2018 |
| BEN Care Services Limited | Leeds | 2017 |
| Benakams Services Ltd | Croydon | 2016 |
| Benav Care Services Ltd | London | 2020 |
| Benchmark Education Services Ltd | Colliers Wood | 2026 |
| Beneficence C.I.C. | Batley | 2023 |