| Beelimitless Ltd | Gainsborough | 2025 |
| Beelits.Com Limited | Stockport | 2017 |
| Beem ADV Limited | Leicester | 2024 |
| Beem Bookings Ltd | Wembley | 2025 |
| Beepee Ltd | Chelmsford | 2026 |
| Beer and Sunshine Boys Limited | Surrey | 2002 |
| Beer Lanyard FC Ltd | Redhill | 2025 |
| Beer Quarry Caves Limited | Colyton | 1983 |
| Beeran Media Ltd | London | 2022 |
| Beerighton Productions Limited | London | 2021 |
| Beermat Events Limited | London | 1991 |
| Beerods Tech Ltd | London | 2025 |
| Bees Boys Limited | Woking | 2015 |
| Bees Football Ltd | London | 2020 |
| Bees, Trees and Muddy Knees C.I.C. | Sunderland | 2022 |
| Beeston Cycling Club CIC | Nottingham | 2024 |
| Beeston Fields Golf Club Limited | Henley-In-Arden | 1970 |
| Beeston Hockey Club Ltd | Nottingham | 2013 |
| Beeston Shenton Sports Limited | Newcastle-Under-Lyme | 2022 |
| Beeswax Theatre Company Ltd | London | 2025 |
| Beetle Back Designs Ltd | Dursley | 2022 |
| Beetlebug Music Ltd | Scarborough | 2020 |
| Beetlejuice London Ltd | London | 2025 |
| Beetons Field Limited | Cambridge | 2005 |
| Beetrainedonline Limited | Manchester | 2021 |
| Beetroot Limited | | 1997 |
| Beetroot Productions Ltd | Sheffield | 2026 |
| Befit Gymnasium Ltd | Oakham | 2022 |
| Befit Hampshire Limited | Ringwood | 2020 |
| Befit Studio Limited | Romford | 2020 |
| Befit Training Limited | Bellshill | 2018 |
| Befittodaysports Ltd | London | 2020 |
| Befootball Academy Limited | Barnet | 2024 |
| Before and After Ltd | Stanford-Le-Hope | 2016 |
| Before Bride Limited | London | 2023 |
| Before I DIE Projects Ltd | Stockport | 2021 |
| Before Lucy Limited | 4 Schooner Road | 2018 |
| Before Productions Limited | Harrow | 2026 |
| Before the Lights Ltd | London | 2019 |
| BEG Friend Limited | Sheffield | 2026 |
| Beggar Bush Lane Sports Facility Limited | Bristol | 2016 |
| Begin Again Designs Ltd | London | 2025 |
| Beginners to Stage Ltd | Nottingham | 2025 |
| Begsonarts & Interior Ltd | Coventry | 2021 |
| Beguile Ltd | Wolverhampton | 2005 |
| Beguiled Productions Limited | Chelmsford | 2006 |
| Behave Creatives Ltd | Bedford | 2017 |
| Behave Limited | Chipping Norton | 1999 |
| Behear Ltd | York | 2023 |
| Behind Closed Paws Ltd | Norwich | 2023 |
| Behind Ltd | London | 2022 |
| Behind the Camera Studios Ltd | Newcastle | 2026 |
| Behind the Scenes (London) Limited | Epsom | 2013 |
| Behind the Scenes Talent Ltd | Taunton | 2015 |
| Behind the Scenes Technical Services Ltd | Wimborne | 2015 |
| Behind the Seams Limited | London | 2014 |
| Behindagroove Ltd | Harlow | 2017 |
| Beholden Ltd | Chorley | 2022 |
| Behr Fitness Ltd | Liverpool | 2025 |
| Beibei Music Studio UK Limited | London | 2015 |
| Beic Parcio Cymru Ltd | Merthyr Tydfil | 2009 |
| Beige Rock Ltd | Ipswich | 2023 |
| Beijing Dance Academy Alumni Organisation of the UK C.I.C. | Sheffield | 2024 |
| Being Bond Limited | Bolton | 2025 |
| Being Framed Limited | Slough | 2017 |
| Being RES Ltd | London | 2016 |
| Being Wellness Ltd | London | 2025 |
| Beinn LEE Limited | Inverness | 2017 |
| Beir BUA Limited | London | 2025 |
| Beirne Racing Limited | Craigavon | 2023 |
| Beis Hastam Limited | London | 2013 |
| Beis Pilates Ltd | Dungannon | 2025 |
| Beis Rochel Club Ltd | London | 2025 |
| Beith Community Development Trust | Beith | 2011 |
| Beith Golf Club (2023) Ltd | Beith | 2023 |
| Beiyang Fleet Heritage Development Ltd | Gateshead | 2025 |
| BEK Music Limited | London | 2008 |
| BEK Road Films Limited | York | 2006 |
| Bekarma Yoga Ltd | Penryn | 2019 |
| Beki Bateson Limited | London | 2020 |
| Beki Reilly Creative Ltd | London | 2021 |
| Bekonscot Limited | Buckinghamshire | 1977 |
| Beks (INT) Ltd | Enfield | 2025 |
| BEL Polo Limited | Sawbridgeworth | 2021 |
| Belair Creative Ltd | London | 2023 |
| Belarus Free Theatre | London | 2012 |
| Belenchuk Arts Limited | London | 2022 |
| Belerion Fitness Ltd | Hayle | 2018 |
| Belfairs Golf Club Limited | Leigh On Sea | 2005 |
| Belfairs Riding School Limited | Leigh On Sea | 1988 |
| Belfairs Sports and Social Club | Southend-On-Sea | 1988 |
| Belfast Academy of Realist Art Limited | Belfast | 2016 |
| Belfast Activity Centre | Belfast | 2010 |
| Belfast and County Down Miniature Railway Society Ltd | Lisburn | 1991 |
| Belfast and District Motor Club Limited | Belfast | 1931 |
| Belfast Boat Club Limited | Belfast | 2019 |
| Belfast Celtic Academy Ltd | Belfast | 2019 |
| Belfast Celtic CIC | Belfast | 2019 |
| Belfast Celtic Football & Athletic Company, Limited | Inverkeithing | 2018 |
| Belfast Celtic Football and Athletic Club Limited | Belfast | 2024 |