| Bailey Fabrications Group Ltd | London | 2025 |
| Bailey Fabrications Limited | Gosport | 1996 |
| Bailey Fasteners Limited | Swindon | 2019 |
| Bailey Group Holdings Limited | Bristol | 2018 |
| Bailey Hills Estates Ltd | Saffron Walden | 2014 |
| Bailey Illustration Limited | London | 2019 |
| Bailey Instruments Ltd | Manchester | 1989 |
| Bailey Morris Limited | Eaton Socon | 1977 |
| Bailey Performance Ltd | Broseley | 2009 |
| Bailey Professional Manufacture Limited | Plymouth | 2026 |
| Bailey Rose Bakes Ltd | Chester | 2025 |
| Bailey Street Furniture Group Limited | Adlington | 2006 |
| Bailey Tempest Limited | Stroud | 2008 |
| Bailey Trailers Limited | Sleaford | 1986 |
| Bailey Upholstery Ltd | Accrington | 2024 |
| Bailey Weber Limited | Milton Keynes | 2006 |
| Bailey Wood Ltd | Tiverton | 2011 |
| Bailey's Bites Ltd | London | 2025 |
| Bailey-Wareham Limited | Dorset | 1994 |
| Baileys Catering Limited | Bury St. Edmunds | 2004 |
| Baileys RAW Ltd | Mansfield | 2025 |
| Baileys Stylish Kitchens Limited | Hull | 2022 |
| Baileysbespoke Ltd | Horsham | 2020 |
| Bailey’S Cladding Ltd | Edenbridge | 2025 |
| Bailie Building Services Ltd | London | 2014 |
| Bailies Coffee Co. Ltd | Belfast | 2005 |
| Baillie Estates Limited | | 1988 |
| Bailmaj Racing Ltd | Bristol | 1992 |
| Bailoy Products Limited | Harmondsworth | 1975 |
| Bailprint Labels Ltd | Chorley | 2001 |
| Baily's Countryside Ltd | London | 2026 |
| Baimbridge Flooring Limited | Huddersfield | 1986 |
| Bain 1 Limited | London | 1992 |
| Bain 2 Limited | London | 1991 |
| Bain DES Dames Ltd | London | 2023 |
| Bainbridge and Tapp Distilling Company Limited | Exeter | 2024 |
| Bainbridge BIO Ltd | Walsall | 2023 |
| Bainbridge Composites Ltd | Banbury | 2016 |
| Bainbridge Electrical Limited | Kendal | 1999 |
| Bainbridge Farms Bakery Limited | Morpeth | 2021 |
| Bainbridge International (Europe) Limited | Southampton | 2026 |
| Bainbridge Print Studio Limited | London | 2016 |
| Bainbridge Provisions Ltd | Norwich | 2019 |
| Bainer Engineering Services Ltd | Aberdeen | 2026 |
| Baines Bakery Limited | Ballyclare | 2019 |
| Baines& Ltd | Brighton | 2014 |
| Bains Fleet Services Ltd | Lanark | 2023 |
| Bainsal Trading (UK) Ltd | Leicester | 2024 |
| Bainsbeck Farms Ltd | Carnforth | 2017 |
| Baird & Co. Limited | London | 1988 |
| Baird CNC Limited | Wellingborough | 2018 |
| Baird Compressed Air Limited | Wishaw | 2009 |
| Baird Foods Services Limited | Burton-On-Trent | 2016 |
| Baird Green Ltd | York | 2025 |
| Baird Taylor Ltd | Glasgow | 2026 |
| Baird Welding and Mechanical Ltd | Cumnock | 2026 |
| Bairds Windows Limited | Newton Stewart | 2006 |
| Bais.Is Ltd | Glasgow | 2025 |
| Baisline Ltd | London | 2019 |
| Bait and Sea Ltd | Foulden | 2025 |
| Bait Ltd | Wirral | 2026 |
| Bait Records Ltd | London | 2025 |
| Baithak Distribution Limited | Croydon | 2025 |
| Baitmonkey Ltd | West Horndon | 2016 |
| Baitpax Limited | Penzance | 2023 |
| Baitsbyaki Limited | Liverpool | 2025 |
| Baiyide Clothing Co., Ltd | West Midlands, England | 2024 |
| BAJ Aviation Limited | Newtownabbey | 2025 |
| BAJ Realisations Limited | Stockton-On-Tees | 1985 |
| Baja Ltd | Watford | 2018 |
| BAJAN1642 Ltd | London | 2025 |
| Bajivicecream Limited | London | 2021 |
| Bajklaser Ltd | Tamworth | 2022 |
| Bajs Blazin Hot Sauce Limited | Greenwich | 2014 |
| Bajwa Steel Limited | Mitcham | 2022 |
| Bajwa Traders Punjab Limited | Ilford | 2025 |
| BAK Designs Ltd | Cheltenham | 2023 |
| Bak'D Limited | London | 2021 |
| Bak-Rak. Ltd | Swadlincote | 1999 |
| Baka Brothers Limited | Edinburgh | 2023 |
| Bakables Limited | Waltham Cross | 2026 |
| Bakare Beds Limited | Plymouth | 1993 |
| Bakare EOT Limited | Plymouth | 2026 |
| Bakari Bakery Limited | Bangor | 2022 |
| Bakaruda Limited | London | 2013 |
| Bake & BAG Ltd | Hillsborough | 2023 |
| Bake & Go Ltd | Erith | 2017 |
| Bake & Ride Ltd | London | 2025 |
| Bake & Roast Ltd | Bolton | 2019 |
| Bake & Shake Ltd | Chorley | 2025 |
| Bake 'N' Treat Ltd | West Sussex | 2021 |
| Bake Baby Ltd | Oswestry | 2025 |
| Bake Box Bakery Limited | Leamington Spa | 2020 |
| Bake BOY Ltd | Ilford | 2026 |
| Bake Buggy Ltd | Glasgow | 2025 |
| Bake City Ltd. | Hayes | 2025 |
| Bake Derbyshire Ltd | Derby | 2025 |
| Bake District Ltd | Camberley | 2018 |
| Bake House (London) Ltd | Harrow | 2024 |
| Bake Larne Ltd | Omagh | 2026 |