| Birkbeck Road (Acton) Management Company Limited | London | 1983 |
| Birkdale Bubbles Limited | Beverley | 2025 |
| Birkdale Foods (Batley) Ltd | Dewsbury | 2024 |
| Birkdale Kabab Ltd | Southport | 2025 |
| Birkdale Tandoori Ltd | Southport | 2024 |
| Birkdale Wine & Dine Limited | Southport | 2022 |
| Birkdalepizza Limited | Southport | 2022 |
| Birkenhead CP 1722 Limited | Birkenhead | 2025 |
| Birkenhead Eats Ltd | Accrington | 2023 |
| Birkenhead Young Men's Christian Association | Merseyside | 1990 |
| Birkenside Estates Limited | Jedburgh | 2022 |
| Birkers Bar and Grill Ltd | London | 2026 |
| Birkhall Brewery Limited | Glasgow | 2018 |
| Birko Grill Ltd | Birkenhead | 2025 |
| Birko Ventures Limited | Birkenhead | 2026 |
| Birks Bristol Ltd | Croydon | 2016 |
| Birks London Limited | Croydon | 2015 |
| Birks Nicola Holdings Limited | Harrow | 2024 |
| Birks Venue Limited | Nottingham | 2024 |
| Birkwood Taverns Limited | Normanton | 2013 |
| Birley Fields Eateries Group Ltd | Manchester | 2013 |
| Birley's Limited | London | 1997 |
| Birlik KB Limited | Brackley | 2026 |
| Birmanti Ltd | Coventry | 2024 |
| Birmingham & Midlands Relocation Service Ltd | Cardiff | 2020 |
| Birmingham & Solihull Women's AID | Birmingham | 1998 |
| Birmingham (Kings Heath) Holdings Ltd | Birmingham | 2024 |
| Birmingham 0220 Ltd | Birmingham | 2017 |
| Birmingham 15 Ltd | Birmingham | 2023 |
| Birmingham Accommodation Ltd | Solihull | 2014 |
| Birmingham Airport Hotels Ltd | Birmingham | 2020 |
| Birmingham Cafe House Ltd | Birmingham | 2022 |
| Birmingham Caterers Limited | Birmingham | 2020 |
| Birmingham Central Ventures Ltd | Birmingham | 2022 |
| Birmingham Children'Scommunity Venture Limited(The) | Birmingham | 1969 |
| Birmingham City Housing Ltd | Birmingham | 2021 |
| Birmingham Cold Store Ltd | Birmingham | 2022 |
| Birmingham College of Food Limited | Birmingham | 2026 |
| Birmingham Desserts Ltd | Birmingham | 2025 |
| Birmingham Event Displays Ltd | Birmingham | 2024 |
| Birmingham Food Court Ltd | Birmingham | 2017 |
| Birmingham Food Limited | Birmingham | 2025 |
| Birmingham Foodies Limited | Birmingham | 2025 |
| Birmingham Glamping Ltd | Stoke-On-Trent | 2025 |
| Birmingham Greek Gyros Express Ltd | Birmingham | 2025 |
| Birmingham Hall Food Limited | London | 2015 |
| Birmingham Hall Limited | Birmingham | 2019 |
| Birmingham Hongkongers Ltd | Birmingham | 2022 |
| Birmingham Hospitality Holdings Limited | Solihull | 2023 |
| Birmingham Hotel Limited | Richmond | 2009 |
| Birmingham Inns Limited | Birmingham | 2011 |
| Birmingham Investments Limited | Birmingham | 2006 |
| Birmingham Kebabs WM Ltd | Smethwick | 2017 |
| Birmingham Meat & EAT Ltd | Wolverhampton | 2025 |
| Birmingham Mithai Ghor Limited | Norwich | 2018 |
| Birmingham Norfolk House Ltd | Birmingham | 2023 |
| Birmingham Rathbone Society | Birmingham | 1985 |
| Birmingham Restaurant Festival Ltd | Birmingham | 2023 |
| Birmingham Road Ltd | Bromsgrove | 2025 |
| Birmingham SA Limited | Smethwick | 2025 |
| Birmingham Support Group CIC | Birmingham | 2025 |
| Birmingham Tamatanga Ltd | Derby | 2016 |
| Birmingham TAP Ltd | York | 2017 |
| Birmingham UKS Fried Chicken Ltd | Birmingham | 2023 |
| Birmingham VEG Restaurant Ltd | Norwich | 2025 |
| Birnam Trading Limited | Edinburgh | 2015 |
| Birnbeck Inns Limited | Weston-Super-Mare | 2019 |
| Birnie & Associates Consulting Ltd | Dungannon | 2017 |
| Birol Ltd | London | 2017 |
| Birov Services Limited | London | 2023 |
| Birra 1 Ltd | Glasgow | 2020 |
| Birra 2 Ltd | 175 West George Street | 2020 |
| Birra Peja UK Limited | London | 2009 |
| Birrell Partners Limited | Bathgate | 2026 |
| Birrell's Ltd | Falkirk | 2022 |
| Birrell-Gray Consulting Limited | Pickering | 2015 |
| Birreria Limited | Barnsley | 2020 |
| Birria Bandits Ltd | Dewsbury | 2022 |
| Birria Bar Ltd | Glasgow | 2022 |
| Birria BBY Ltd | London | 2025 |
| Birria Boyz Kitchens Limited | Leeds | 2025 |
| Birria Brothers Ltd | Manchester | 2021 |
| Birria Shop Ltd | Glasgow | 2024 |
| Birria ST Limited | Birmingham | 2025 |
| Birria Street Kitchen Limited | Darlington | 2026 |
| Birstall Spice Limited | Leicester | 2025 |
| Birstgate Limited | Walsall | 2022 |
| Birtan Ltd | Conwy | 2018 |
| Birthday Bear Soft Play Hire Ltd | Moffat | 2022 |
| Birthday Venue & Events Ltd | Coventry | 2025 |
| Birthdays and Balloons Limited | London | 2026 |
| Birthstone Group Ltd | Torquay | 2021 |
| Birtwick Park Ltd | Haverfordwest | 2020 |
| Biru Takeaway Ltd | Harrow | 2023 |
| Birwin Limited | Manchester | 2021 |
| Biryaani Boss Ltd | Essex | 2024 |
| Biryani & Curry Hub Limited | Tamworth | 2025 |
| Biryani and Beyond Ltd | Southall | 2025 |
| Biryani and Chaii Ltd | Middlesbrough | 2026 |
| Biryani and Curry House Ltd | Gillingham | 2025 |