| BGL Oilservices Limited | Inverurie | 2013 |
| BGN Music CIC | Belfast | 2023 |
| BGR Training (Birmingham) Limited | Birmingham | 2016 |
| BGS Education Ltd | Wickford | 2018 |
| BGS Learning Foundation | Bristol | 2016 |
| BGV Education Ltd | London | 2017 |
| BH Community London | London | 2001 |
| BH Education Limited | Epsom | 2022 |
| BH Healthcare Ltd | Glasgow | 2023 |
| BH Lacrosse Ltd | Altrincham | 2025 |
| BH Oralsurgery Ltd | Glasgow | 2025 |
| BH Psych Solutions Limited | Malvern | 2023 |
| BH Skills and Training Ltd | Crawley | 2026 |
| BH Sports Performance Ltd | Great Marlings | 2022 |
| BH Tutoring Limited | London | 2017 |
| BH Youth Mentoring Ltd | Bournemouth | 2026 |
| Bhairab Somiti UK Ltd | London | 2026 |
| Bhalla Foundation Limited | Ilford | 2025 |
| Bharadwaj Welfare Community CIC | London | 2025 |
| Bharatiya Ashram | Dundee | 2004 |
| Bharatiya Vidya Bhavan (Manchester) Limited | Ashton Under Lyne | 1994 |
| Bharatiya Vidya Bhavan Limited | | 1973 |
| Bharuchi Vahora Association London | Ilford | 2021 |
| Bhat Rasool Consultants Limited | Cardiff | 2014 |
| Bhatia Tuition Ltd | Sheerness | 2014 |
| BHB Fitness Ltd | London | 2024 |
| Bhcf - ADM Properties Limited | Nottingham | 2022 |
| Bhcf - ALM Properties Limited | Spalding | 2022 |
| BHCF2 Limited | Nottingham | 2013 |
| BHCF3 Limited | Nottingham | 2022 |
| BHE Global Ltd | London | 2015 |
| Bheca UK Ltd | London | 2025 |
| Bhfs Holdings Limited | Northampton | 2022 |
| Bhfs One Limited | Northampton | 2000 |
| Bhfs Two Limited | Northampton | 2000 |
| Bhgv Driver Training UK Ltd | Leek | 2026 |
| BHH Education Limited | London | 2019 |
| BHM Training Solutions Limited | London | 2018 |
| Bhogal Lenge Ltd | Rochdale | 2024 |
| Bhouse Jiu-Jitsu Limited | Huddersfield | 2025 |
| Bhox Group Limited | Birmingham | 2025 |
| BHR Coaching School Limited | Glasgow | 2024 |
| BHS Enterprises Ltd | Bakewell | 2025 |
| BHT Education Ltd | London | 2022 |
| BHU Community Arts CIC | Pudsey | 2025 |
| Bhubesi Pride Foundation | Cambridge | 2013 |
| Bhudye Group Ltd | London | 2018 |
| Bhuiyan Associate Ltd | London | 2015 |
| Bhunter Education Limited | Hucknall | 2021 |
| Bhuta Consultants Limited | London | 2023 |
| Bhva Axis Hub CIC | Kettering | 2021 |
| BHW Warriors Limited | Derby | 2020 |
| BIA Medicare Ltd | Bordon | 2024 |
| Biafra Liaison UK Ltd | Birmingham | 2024 |
| Bianca Tutoring Services Ltd | Hornchurch | 2023 |
| Bianco Academy Ltd | Bedford | 2021 |
| Biap Limited | Shrewsbury | 2025 |
| Biba Adams Ltd | London | 2020 |
| Bibby Consultancy Services Ltd | Derby | 2010 |
| Bibby Rumbelow Limited | Witney | 2008 |
| Bibiana Solutions Ltd | London | 2024 |
| Bibimingzi Ltd | London | 2018 |
| Bible Life Christian Centre Limited | Dartford | 2009 |
| Bible Quiz Quest Ltd | Peterborough | 2025 |
| Bibliomane Limited | London | 2021 |
| Biblios Adventure Ltd | Bristol | 2018 |
| Bibs Consulting Ltd | Mildenhall | 2024 |
| Bibsol Ltd | Oxford | 2024 |
| BIC Partnership Limited | Eastleigh | 2016 |
| Bicas Consultancy UK Limited | Manchester | 2013 |
| Bicen Maths Ltd | Manchester | 2024 |
| Bicester & District Gymnastics Club C.I.C. | Bicester | 2026 |
| Bicester Care Ltd | London | 2016 |
| Bicester Islamic Cultural Society | Bicester | 2022 |
| Bickerstaffe Children's Services Limited | Liverpool | 2005 |
| Bickley Park School Limited | Steyning | 1962 |
| Bicmp | Stoke-On-Trent | 2014 |
| Bicon Continuity Limited | Cambridge | 2011 |
| Bict UK Limited | South Ruislip | 2020 |
| Bicton Overseas Agricultural Trust | Ottery St. Mary | 1992 |
| BID Academy Limited | Bradford Peverell | 2025 |
| Biddulph Schools Partnership Trust | Stoke-On-Trent | 2012 |
| Bidexzy Anji Ltd | Northampton | 2025 |
| Biea British International Education Association Ltd | London | 2018 |
| Bieszczady Culture and Education Centre CIC | Salford | 2025 |
| Bifa Global Ltd | London | 2026 |
| Big Acorn Nursery Schools Limited | London | 2024 |
| Big Adventure (Education) Limited | Kendal | 2019 |
| Big B Corporation UK Limited | Walton-On-Thames | 2024 |
| Big Bang Education CIC | London | 2010 |
| Big Bang Prospects (the Hope Hub) CIC | Birmingham | 2021 |
| Big Bash Music Company Limited | Kent | 2002 |
| Big Bear Bespoke Education Ltd | Aldershot | 2013 |
| Big Bear Forest School Ltd | Epsom | 2026 |
| Big Beauty Academy Ltd | London | 2021 |
| Big Belly Golf CIC | Surbiton | 2025 |
| Big BEN Education Ltd | Erith | 2016 |
| Big BEN English Ltd | Eastbourne | 2026 |
| Big BEN Language School Ltd | Rotherham | 2018 |
| Big BEN Theatre Company Limited | London | 2016 |