| Berserk Theatre Limited | Leytonstone | 2025 |
| Berserkboygames Ltd | Redditch | 2017 |
| Bert Tyler Moore Ltd | Lewes | 2011 |
| Bert's Songs Limited | London | 2002 |
| Bertha Docfactory Limited | | 2006 |
| Bertha Dochouse Limited | London | 2011 |
| Bertha UK Limited | London | 2011 |
| Berthold Moyo Limited | Stoke-On-Trent | 2025 |
| Berthon International Limited | Lymington | 1993 |
| Bertie and BOW Entertainment CIC | Shoreham-By-Sea | 2026 |
| Bertie Peacock Foundation | Coleraine | 2007 |
| Bertrand Lesca + Nasi Voutsas Ltd | Tenterden | 2021 |
| Bertsy Productions Limited | Waltham Abbey | 2019 |
| Berwick & District Motor Club Ltd | Berwick Upon Tweed | 1997 |
| Berwick & District Rugby Football Foundation | Berwick-Upon-Tweed | 2004 |
| Berwick Farm XC Ltd | Epping Upland | 2019 |
| Berwick Film and Media Arts Festival | Berwick-Upon-Tweed | 2005 |
| Berwick Rangers Football Club Public Limited Company | Berwick Upon Tweed | 1952 |
| Berwick Rugby Football Club (Trading) Limited | Berwick-Upon-Tweed | 2016 |
| Berwick Rugby Football Club Limited | Berwick-Upon-Tweed | 2009 |
| Berwick Shooting Ground Ltd | Epping | 2022 |
| Berwick Speedway Promotions Limited | Cleckheaton | 2018 |
| Berwick ST John Country Fayre Limited | Salisbury | 2008 |
| Berwick Tennis Club Limited | Berwick Upon Tweed | 2020 |
| Berwick Upon Tweed (Goswick) Golf Club Limited | Berwick Upon Tweed | 2025 |
| Berwick Upon Tweed Sailing Club Limited | Berwick Upon Tweed | 2023 |
| Berwick-Upon-Tweed Preservation Trust | Northumberland | 1985 |
| Berwickshire Recreation Education Sports Trust | | 1997 |
| Berwyn Practice Track Limited | Llangollen | 2016 |
| Besarchy Crafts Ltd | London | 2025 |
| Besiana Ltd | London | 2022 |
| Beside the Seaside Photography Limited | Havant | 2020 |
| Bespoke - the Company Limited | London | 2016 |
| Bespoke Art Services Ltd | Ely | 2021 |
| Bespoke AV Productions Ltd | Chesham | 2023 |
| Bespoke Ballroom Limited | London | 2014 |
| Bespoke Body Fitness Limited | London | 2012 |
| Bespoke Bourton Ltd | Cheltenham | 2021 |
| Bespoke Business Consultancy Limited | London | 2017 |
| Bespoke Buttons Ltd | Southampton | 2025 |
| Bespoke by Music Ltd | Glasgow | 2025 |
| Bespoke Conditioning Ltd. | Watlington, | 2017 |
| Bespoke Entertainment Group Ltd | Swansea | 2024 |
| Bespoke Event Team Ltd | Farnham | 2013 |
| Bespoke Fitness and Nutrition Ltd | Wigan | 2020 |
| Bespoke Health & Fitness Limited | Wakefield | 2024 |
| Bespoke Impact Limited | Cheltenham | 2016 |
| Bespoke Luxury Events Limited | Liverpool | 2024 |
| Bespoke Mall Experiences Ltd | Blackpool | 2023 |
| Bespoke Occasions Ltd | London | 2024 |
| Bespoke One Creative Ltd | Ruthin | 2025 |
| Bespoke Personal Training Limited | Ross-On-Wye | 2024 |
| Bespoke Pilates Limited | Camberley | 2016 |
| Bespoke PT Limited | Enfield | 2024 |
| Bespoke Rackets Ltd | Somerton | 2025 |
| Bespoke Rafting Ltd | Pitlochry | 2025 |
| Bespoke Sailing Limited | Southampton | 2024 |
| Bespoke Scuba Diving Ltd | London | 2016 |
| Bespoke Sporting Experiences Limited | Nottingham | 2020 |
| Bespoke Technical Group Ltd | Newcastle Upon Tyne | 2024 |
| Bespoke Verse Limited | Hemel Hempstead | 2014 |
| Bespoke Wellness Ltd | London | 2024 |
| Bespoke Yacht Services Limited | Eastleigh | 2006 |
| Bespokenword Limited | York | 2009 |
| Bespoke’S by MEL Ltd | Stalybridge | 2025 |
| Besport Coaching Limited | Hailsham | 2025 |
| Bessacarr Community Library Limited | Doncaster | 2014 |
| Bessacarr Football Club CIC | Doncaster | 2022 |
| Bessbrook Townhall Ltd | Newry | 2021 |
| Best Alternative Services Ltd | Rainham | 2012 |
| Best BOY Ltd | Tunbridge Wells | 2024 |
| Best Boys Music Limited | Glasgow | 2021 |
| Best Coach and Mentorship Limited | Port Talbot | 2025 |
| Best EGG Ltd | Wembley | 2013 |
| Best Equine Spa Ltd | Maidstone | 2008 |
| Best Events Limited | Portsmouth | 2021 |
| Best Fake Skin Ltd | Chelmsford | 2025 |
| Best Festivals Limited | Feltham | 2017 |
| Best Fishing Ltd | Selkirk | 2017 |
| Best Foot Forward Productions Ltd | Stevenage | 2022 |
| Best Foot Forward Skate Hub C.I.C. | London | 2024 |
| Best Girl Productions Ltd | Lancaster | 2025 |
| Best Golf Ltd | Bradford | 2025 |
| Best in Class CIC | Liverpool | 2019 |
| Best Life Productions Ltd | Ashtead | 2024 |
| Best Mates Limited | London | 2013 |
| Best Medicine Ltd | London | 2025 |
| Best Mouse Ltd | Glasgow | 2025 |
| Best of Breed Limited | Croydon | 2018 |
| Best of Italy Race Ltd | London | 2015 |
| Best Raffle Competitions Ltd | Dunstable | 2023 |
| Best Raffle Opportunities Ltd | Whitby | 2025 |
| Best Results Fitness Ltd | Berkhamsted | 2019 |
| Best Sevens Ltd | Coventry | 2024 |
| Best Sleepover Ever Events Ltd | Warrington | 2020 |
| Best Sports Clothing Ltd | Southend-On-Sea | 2021 |
| Best Tomatoes Ltd. | Derby | 2018 |
| Bestbilet Limited | Weston-Super-Mare | 2025 |
| Besthorpe Moto X & Quad Tracks Limited | Norwich | 2004 |
| Besties Play Cafe Ltd | Solihull | 2025 |