| Bird Noise Ltd | Doncaster | 2012 |
| Bird on the Wire Events Limited | London | 2012 |
| Birdbrooke Entertainment Ltd | Chorley | 2019 |
| Birdcage Stage C.I.C. | Wallasey | 2021 |
| Birdcatcher Ltd | London | 2021 |
| Birdco Ltd | Weston-Super-Mare | 2015 |
| Birdgang Ltd | London | 2015 |
| Birdham Yacht Club Limited | Chichester | 2023 |
| Birdhouse Projects Ltd | Grimsby | 2011 |
| Birdhurst Lawn Tennis Club Limited(The) | South Croydon | 1921 |
| Birdie Base Golf Ltd | Hemel Hempstead | 2025 |
| Birdie Bays Group Ltd | Falmouth | 2025 |
| Birdie Bays Ltd | Shrewsbury | 2025 |
| Birdie BUS Ltd | London | 2025 |
| Birdie Freaks Ltd | Wrexham | 2025 |
| Birdies & Bullseyes Ltd | Tring | 2025 |
| Birdies Caddying Ltd | Chippenham | 2017 |
| Birding Abroad Limited | Doncaster | 2015 |
| Birdland Park Limited | Sherborne | 2023 |
| Birdlight Design Ltd | Nottingham | 2024 |
| Birds & Animals UK Ltd. | Harefield | 2000 |
| Birds Amusements Limited | Newry | 2020 |
| Birds and Words Limited | Highbridge | 2004 |
| Birds Hollow Productions Ltd | Chelmsford | 2022 |
| Birdsong Productions Limited | Reading | 2012 |
| Birdwave Consultancy Limited | Cheshire | 2004 |
| Birdworld Limited | Ferndown | 1958 |
| Birdynumnum Ltd | Sevenoaks | 2013 |
| Birdynumnum Two Ltd | Swanley | 2021 |
| Birk & Sons Limited | Sheffield | 2019 |
| Birkdale Boxing Club CIC | Southport | 2026 |
| Birkenhead Comets CIC | Birkenhead | 2021 |
| Birkenhead Community Development Committee | Birkenhead | 2011 |
| Birkenhead Drive Thru Cinema Ltd | Wirral | 2025 |
| Birkenhead Gymnastics Academy Community Interest Company | Birkenhead | 2017 |
| Birkenhead Gymnastics Ltd | Macclesfield | 2025 |
| Birkenhead Lawn Tennis Club Limited | Prenton | 1925 |
| Birkett Wood Ltd | Norfolk | 2026 |
| Birkhaus Ltd | Sheffield | 2024 |
| Birmingham & Solihull Rugby Football Club Limited | Solihull | 2018 |
| Birmingham 2021 (Union CUP) Limited | Stourport-On-Severn | 2019 |
| Birmingham 247 Limited | Lowestoft | 2021 |
| Birmingham Albion Football Club Ltd | Birmingham | 2025 |
| Birmingham Anglers' Association Limited(The) | Hagley | 1973 |
| Birmingham Arts Foundation | Birmingham | 2014 |
| Birmingham Artspace Ltd | Birmingham | 1991 |
| Birmingham Bears Elite Basketball CIC | Birmingham | 2024 |
| Birmingham Blitz Dames Limited | Solihull | 2014 |
| Birmingham Botanical and Horticultural Society Limited | Birmingham | 1930 |
| Birmingham Bouncers CIC | Birmingham | 2019 |
| Birmingham Bulls Kabaddi Limited | Birmingham | 2022 |
| Birmingham Bulls RFC Ltd | Birmingham | 2021 |
| Birmingham Chinese Youth Centre | Birmingham | 1998 |
| Birmingham City Football Club Limited | Birmingham | 1888 |
| Birmingham City Volleyball Ltd | Solihull | 2023 |
| Birmingham City Women Football Club Limited | Birmingham | 2012 |
| Birmingham Civil Service RFC Limited | Solihull | 2019 |
| Birmingham Climbing Wall Limited | Birmingham | 2005 |
| Birmingham Community Association Limited | Small Heath | 1983 |
| Birmingham Contemporary Music Group | Birmingham | 1989 |
| Birmingham County Football Association Limited | Birmingham | 1999 |
| Birmingham Dance Network C.I.C. | Birmingham | 2017 |
| Birmingham Entertainment Limited | Birmingham | 2025 |
| Birmingham Exiles RFC Ltd | Solihull | 2012 |
| Birmingham Fashion Week Ltd | Birmingham | 2023 |
| Birmingham Film Organisation Ltd | Birmingham | 2016 |
| Birmingham Functional Fitness Ltd | Birmingham | 2012 |
| Birmingham Great Park Cinema 2 Limited | Jersey | 2006 |
| Birmingham Hippodrome Limited | Birmingham | 1981 |
| Birmingham Hippodrome Productions Ltd | Birmingham | 2023 |
| Birmingham Hippodrome Theatre Trust Limited | Birmingham | 1979 |
| Birmingham Horror Film Festival Ltd | Stourbridge | 2025 |
| Birmingham Improv C.I.C. | Birmingham | 2016 |
| Birmingham International Jazz Festival Limited | Halesowen | 1988 |
| Birmingham Jazz | Birmingham | 1990 |
| Birmingham Jazz & Blues Festival C.I.C. | Birmingham | 2025 |
| Birmingham Judo and Jiujitsu Ltd | Sutton Coldfield | 2020 |
| Birmingham Lane Ltd | Littlehampton | 2013 |
| Birmingham Moseley Rugby Limited | Birmingham | 2002 |
| Birmingham Museums Trust | Birmingham | 2011 |
| Birmingham Music Archive C.I.C. | Smethwick | 2017 |
| Birmingham Opera Company | Birmingham | 1984 |
| Birmingham Ormiston Academy Theatre Limited | Birmingham | 2014 |
| Birmingham Padel Limited | Birmingham | 2023 |
| Birmingham Philharmonic Orchestra Productions Limited | Birmingham | 2022 |
| Birmingham Phoenix Limited | Birmingham | 2019 |
| Birmingham Pickle Limited | Solihull | 2025 |
| Birmingham Printmakers | Birmingham | 2016 |
| Birmingham Raiders FC Ltd | Sutton Coldfield | 2022 |
| Birmingham Records Limited | London | 2019 |
| Birmingham REP Enterprises Limited | Birmingham | 1990 |
| Birmingham Repertory Theatre,Limited(The) | | 1935 |
| Birmingham Rockets Basketball Club Limited | Birmingham | 2025 |
| Birmingham Rovers Basketball Club Community Interest Company | Birmingham | 2021 |
| Birmingham Rowing Club Limited | Birmingham | 1998 |
| Birmingham Royal Ballet | | 1997 |
| Birmingham Speedway 2022 Limited | Stourbridge | 2021 |
| Birmingham Speedway PBS Limited | Kidderminster | 2015 |
| Birmingham Sporting Club Ltd | Birmingham | 2024 |
| Birmingham Stage Co (London) Limited | London | 2011 |