| BCS Audio Limited | Solihull | 2012 |
| BCS Exhausts Ltd | Warrington | 2021 |
| BCS Learning Ltd | London | 2014 |
| BCS Manufacturing Limited | Solihull | 2013 |
| BCS Packaging Ltd | Beckenham | 2017 |
| BCS Solutions Limited | Sheffield | 2016 |
| Bcsrgroup CIC | London | 2020 |
| BCT Marine Ltd | London | 2022 |
| Bctc Land Limited | Bristol | 1999 |
| BD Concepts Limited | Plymouth | 2013 |
| BD Cooke Investments Limited | London | 2001 |
| BD Ltd | Newmarket | 2009 |
| BD Pyro Limited | West Midlands | 2007 |
| BD Trading (UK) Ltd | Wallasey | 2020 |
| BD1044 Ltd | Walton-On-Thames | 2025 |
| BDA Trading Limited | London | 2000 |
| Bdam Ltd | Sutton Coldfield | 2022 |
| Bdar (Holdings) Limited | London | 2010 |
| BDC Investment Management Ltd | Edinburgh | 2012 |
| BDC Supporting Services Ltd | Thornton Heath | 2010 |
| BDD Solutions Ltd | Tonbridge | 2024 |
| Bdgt Investments Limited | London | 2019 |
| BDI Emea Limited | Ashford | 2024 |
| BDI Trustee Limited | London | 2024 |
| BDL Devon Limited | Barnstaple | 2026 |
| BDL Finance Limited | Manchester | 2013 |
| BDM Foods Limited | London | 2019 |
| Bdmc Limited | Cardiff | 2004 |
| BDO NI Chartered Accountants (Holdings) Limited | Belfast | 2015 |
| BDO NI Chartered Accountants Limited | Belfast | 2015 |
| BDO Stoy Hayward Limited | London | 2013 |
| Bdoh Ltd | Sutton Coldfield | 2022 |
| BDP Acoustics Limited | Manchester | 1987 |
| BDP Advanced Technologies Limited | Manchester | 1998 |
| BDP Animal Therapy Limited | Launceston | 2015 |
| BDP Belfast Limited | Manchester | 1987 |
| BDP Bristol Limited | Manchester | 1996 |
| BDP Cardiff Limited | Manchester | 1987 |
| BDP Computing Services Limited | Manchester | 1981 |
| BDP Design Limited | Manchester | 1987 |
| BDP Dublin Limited | Manchester | 1987 |
| BDP Edinburgh Limited | Manchester | 2007 |
| BDP Engineering Limited | Manchester | 1987 |
| BDP Europe Limited | Manchester | 1990 |
| BDP Glasgow Limited | Manchester | 1987 |
| BDP International Limited | Manchester | 1990 |
| BDP Landscape Limited | Manchester | 1981 |
| BDP Leeds Limited | Manchester | 1990 |
| BDP Lighting Limited | Manchester | 1987 |
| BDP Liverpool Limited | Manchester | 1998 |
| BDP London Limited | Manchester | 1987 |
| BDP Manchester Limited | Manchester | 1987 |
| BDP Middle East Limited | Manchester | 2008 |
| BDP Planning Supervisors Limited | Manchester | 1987 |
| BDP Sheffield Limited | Manchester | 1987 |
| BDP Special Structures Group Limited | Manchester | 1987 |
| BDP Sport Limited | Manchester | 1995 |
| BDP Sustainability Limited | Manchester | 1998 |
| BDR Thermea UK & Ireland Limited | Warwick | 2021 |
| BDS Architecture & Interior Design Limited | Croydon | 2004 |
| BDS Electrical Services Ltd | Lydney | 2018 |
| BDS Rail Ltd | Droitwich | 2019 |
| BDT Secretarial Services Ltd | Sidcup | 2007 |
| BE Confident Limited | East Yorks | 2007 |
| BE Dazed Ltd. | Mitcham | 2015 |
| BE Easy Products Co., Ltd. | Gillingham | 2018 |
| BE Estates Investments Limited | Newport Pagnell | 2014 |
| BE Finans Limited | London | 2007 |
| BE Fire Smart Limited | Witney | 2012 |
| BE Group Investments Limited | Eastbourne | 2012 |
| BE Lower Limited | Rotherham | 2018 |
| BE Loyal Limited | Stratford-Upon-Avon | 2007 |
| BE Magna Ltd | Croydon | 2025 |
| BE Marine Ltd. | London | 2016 |
| BE Missu Limited | London | 2024 |
| BE Music Limited | Nottingham | 2012 |
| BE Organic Limited | New Eltham | 2005 |
| BE Paratus Ltd | London | 2024 |
| BE Safe Investment Norway Limited | London | 2022 |
| BE Safe Norway Limited | London | 2022 |
| BE Sustainability Limited | Lytham St Annes | 2013 |
| BE Sustainable Placemaking Limited | Sleaford | 2024 |
| BE the Bride Boutique Ltd | Glenrothes | 2021 |
| BE Transport Limited | Saxmundham | 2013 |
| BE Valued Ltd | Eastbourne | 2026 |
| BE Wafe Ltd | Haverfordwest | 2025 |
| BE Wealthfluent Ltd | Sevenoaks | 2023 |
| BE With IT Ltd | Twickenham | 2021 |
| BE Yusful Group Ltd | London | 2011 |
| Be-Mazel Ltd | Gateshead | 2015 |
| Be-Yourself-Art Ltd | Solihull | 2022 |
| Beach Happines Ltd | London | 2025 |
| Beach Apartments Management Company Limited | | 2004 |
| Beach Holdings Ltd | Norwich | 2022 |
| Beach House (Seaton) Limited | Seaton | 2011 |
| Beach HUT Publications Ltd | Paignton | 2015 |
| Beach IFA Limited | Brierley Hill | 2008 |
| Beach Independent Financial Advisors Limited | Brierley Hill | 2008 |
| Beach Insurance Brokers Limited | Brierley Hill | 2010 |
| Beach Insurance Financial Services Limited | Brierley Hill | 2008 |