| Baklavaci Ltd | London | 2019 |
| Bakmon Ltd | Halifax | 2025 |
| Bako & Nagy Ltd | Carlisle | 2021 |
| Bakul Coffee Limited | London | 2025 |
| Bakustica Ltd | London | 2020 |
| BAL (Aluminium) Limited | Redditch | 2014 |
| BAL Cakery Ltd | Kent | 2019 |
| BAL Decoration Limited | London | 2020 |
| BAL Engineering Limited | | 1970 |
| BAL Group (Aluminium) Limited | Birmingham | 1997 |
| Bala Chang Ltd | Norwich | 2019 |
| Bala Gold Ltd | Cardiff | 2023 |
| Balady Bakery Ltd | Greenford | 2020 |
| Balady Bread Limited | Belfast | 2023 |
| Balaena Ltd | Cornwall | 2019 |
| Balah Limited | Downpatrick | 2013 |
| Balaji Foods Limited | Harrow | 2010 |
| Balaji Mithaiwala Ltd | Hayes | 2023 |
| Balancd Health Company Ltd | London | 2026 |
| Balance & Test Ltd | Worcester | 2025 |
| Balance Audio Ltd | Treharris | 2016 |
| Balance Brewing & Blending Ltd | Manchester | 2021 |
| Balance Cosmetics Limited | Canterbury | 2025 |
| Balance Cycling Limited | Nelson | 2022 |
| Balance Dentech Ltd | East Grinstead | 2026 |
| Balance Foods Limited | London | 2005 |
| Balance Innovations Ltd | London | 2018 |
| Balance of Nature (U.K) Ltd | Manchester | 2021 |
| Balanced Audio Ltd | Redditch | 2025 |
| Balanced Bodycare Ltd | Nottingham | 2022 |
| Balanced Days Ltd | Poole | 2026 |
| Balanced Diet Cottage Limited | Dundee | 2025 |
| Balanced Flames Ltd | Dunstable | 2024 |
| Balanced Nature Ltd | Winchester | 2016 |
| Balanced Support Reins Ltd | Crook | 2019 |
| Balanced Universe Ltd | London | 2024 |
| Balanced Waves Limited | Harrow | 2016 |
| Balancewise Ltd | London | 2025 |
| Balanclenz Limited | London | 2024 |
| Balanova Limited | Stanmore | 2022 |
| Balatro (London 1) Limited | London | 2022 |
| Balau Bespoke Joinery Ltd | Wilmington | 2007 |
| Balbeggie Steel Structures Limited | Kirkcaldy | 2005 |
| Balby Electric Company Limited | Doncaster | 1989 |
| Balcan Engineering Limited | Horncastle | 1972 |
| Balcas Limited | Enniskillen | 1962 |
| Balcas Timber Limited | Enniskillen | 1991 |
| Balco Engineering Limited | Birmingham | 1979 |
| Balco Global Limited | Chippenham | 2019 |
| Balco Plant Services Ltd | Oldham | 2020 |
| Balcondry Limited | Barnstaple | 2017 |
| Balconies & Balustrades Limited | Plymouth | 2010 |
| Balcony Installations Ltd | London | 2021 |
| Bald and Bearded Ltd | London | 2025 |
| Bald Bakes Ltd | London | 2025 |
| Balde London Ltd. | Rotherham | 2017 |
| Balde Railings Limited | Grays | 2025 |
| Balders Controls Ltd | Crawley | 2019 |
| Balding Design Limited | Ludgershall | 2016 |
| Baldmin Projects & ENG Maintenance Ltd | Milton Keynes | 2024 |
| Baldock Bespoke Ltd | Altrincham | 2021 |
| Baldwin & Francis Limited | Leicestershire | 2019 |
| Baldwin & Wiser Limited | Alfreton | 1974 |
| Baldwin Boxall Communications Limited | Crowborough | 1982 |
| Baldwin Domestic Appliances Limited | Kidlington | 2014 |
| Baldwin Glass Limited | East Yorkshire | 1990 |
| Baldwin Guggisberg Limited | Presteigne | 2014 |
| Baldwin Locksmiths Ltd | Newport | 2010 |
| Baldwin Plastic Laminates Limited | Brentwood | 1988 |
| Baldwin Repair Services Limited | Wolverhampton | 2003 |
| Baldwin Technology Limited | Plymouth | 1975 |
| Baldwin's Brew Ltd | Hayes | 2025 |
| Baldwins Electrical Services Ltd | Beccles | 2016 |
| Baldwins Furniture Frames (Wigan) Ltd | Wigan | 2019 |
| Baldwins Furniture Frames Ltd | Hindley | 2009 |
| Baldwins Installations Ltd | Birmingham | 2024 |
| Baldy Locks Ltd | St Andrews | 2022 |
| Bale Joinery Ltd | Bristol | 1999 |
| Bale-Pak Limited | Hythe | 2001 |
| Balefire Ltd | Newton Aycliffe | 2021 |
| Balehaus Limited | Culham, Abingdon | 2008 |
| Balerno Interiors Ltd | Carrickfergus | 2023 |
| Balform Limited | Beaconsfield | 1978 |
| Balfour Beatty Plant & Fleet Services Limited | Derby | 1989 |
| Balfour Beatty Rail Residuary Limited | Holytown | 1907 |
| Balfour Beatty Rail Track Systems Limited | London | 1988 |
| Balgonie Embroidery and Prints Limited Limited | Glenrothes | 2024 |
| Balgowan Fine Foods Ltd | Glenrothes | 2024 |
| Balguard Engineering Limited | Leighton Buzzard | 1977 |
| Balham Box Frames Ltd | London | 2017 |
| Balham Electrical Services Limited | London | 2010 |
| Balham Glass Ltd | Epsom | 2018 |
| Balham Joinery Ltd | Mitcham | 2015 |
| Bali Balm Ltd | London | 2016 |
| Bali Beans Ltd | Rushton Spencer | 2016 |
| Baliga Ayurveda Ltd. | London | 2016 |
| Balina Limited | Nottingham | 2023 |
| Baling Wire Ltd | Radlet | 2026 |
| Balisier Ltd | Southampton | 2016 |
| Baliveno Fashion House Ltd | Heckmondwike | 2023 |