| Burnham Willow Limited | Fakenham | 2005 |
| Burnhill Kitchens Contracting Ltd | Tunbridge Wells | 2026 |
| Burnhill Kitchens Limited | Tonbridge | 2002 |
| Burnhouse Engineering & Fabrication Limited | Beith | 1998 |
| Burning Barn Limited | Birmingham | 2017 |
| Burning PCS Ltd | Bedford | 2018 |
| Burning Sky Brewery Limited | Eastbourne | 2013 |
| Burning Soul Brewing Ltd | Birmingham | 2016 |
| Burnley Clothing Ltd | Manchester | 2025 |
| Burnley Metalcraft Limited | Burnley | 2002 |
| Burnoutbliss Ltd | Enniskillen | 2025 |
| Burns Animal Foods Limited | Lancashire | 2003 |
| Burns Blade Repair Services Ltd | Cowes | 2023 |
| Burns Bros.(Smethwick)Limited | Cradley Heath | 1952 |
| Burns Crystal Glass Limited | Hamilton | 1989 |
| Burns Electrical Services Ltd | Carluke | 2017 |
| Burns London (Holdings) Ltd | Woking | 1991 |
| Burns Pet Nutrition Ltd | London | 2001 |
| Burns the Bread Limited | Glastonbury | 2011 |
| Burnsall Engineering Co. Limited | Coventry | 1997 |
| Burnside Commercials Limited | Glasgow | 2024 |
| Burnside Engineering Ltd | Dundee | 2011 |
| Burnside Garden Machinery Ltd. | Glasgow | 2015 |
| Burnside Telecom Limited | Eastleigh | 2015 |
| Burnstein Limited | Prenton | 2011 |
| Burnt Creations Ltd | High Wycombe | 2020 |
| Burnt Faith Spirits Limited | London | 2021 |
| Burnt Hill Brewery Limited | Lyndhurst | 2017 |
| Burnt Island Occasions Ltd | Bridgend | 2019 |
| Burnt Metalcraft Designs Limited | Nottingham | 2021 |
| Burnt Mill Brewery Ltd | Ipswich | 2016 |
| Burnt OUT & Bitter Candle Co. Ltd | Glasgow | 2025 |
| Burnt Soul Limited | Newquay | 2015 |
| Burntbeans Ltd | Exeter | 2025 |
| Burntisland Fabrications Limited | Edinburgh | 2000 |
| Burntwood Compressors Ltd | Cannock | 2017 |
| Burntwood Engineering Company Limited | Burntwood | 2007 |
| Burntwood Fasteners Limited | Cannock | 1979 |
| Burntwoodshop Ltd | Burntwood | 2025 |
| Burnzee Holdings Limited | Farnham | 2017 |
| Burph Industry Limited | Liverpool | 2025 |
| Burr & Knot Ltd | Launceston | 2021 |
| Burr Coffee Limited | Bournemouth | 2021 |
| Burr Timber Ltd | Portadown | 2023 |
| Burr Woodworks Ltd | Shaftesbury | 2022 |
| Burr's Carpentry & Joinery Ltd | Taffs Well | 2026 |
| Burrana Limited | London | 2014 |
| Burray Boatyard Limited | Burray | 2015 |
| Burrbaxter Print Ltd | Cheadle | 2008 |
| Burren Balsamics Ltd | Armagh | 2014 |
| Burren Precast Concrete (UK) Limited | London | 2014 |
| Burridge & Heath Limited | Danbury | 2022 |
| Burridge Printers Limited | Okehampton | 2012 |
| Burroughes & Watts Limited | Birmingham | 2002 |
| Burrow & Fern Limited | Saffron Walden | 2025 |
| Burrow Environmental Ltd | Sherborne | 2017 |
| Burrow Plant & Engineering Ltd | Ashford | 2016 |
| Burrowdale Limited | London | 2026 |
| Burrows & Smith Holdings Limited | Leicester | 2016 |
| Burrows & Smith Limited | Syston | 1941 |
| Burrows (G.M.) Limited | Telford | 1951 |
| Burrows Engineering Limited | | 2008 |
| Burrows Joinery Limited | Kings Lynn | 2003 |
| Burrows LEA Forge Ltd | Shere | 2010 |
| Burrwood Designs Ltd | Cheltenham | 2016 |
| Burry Port Marina Ltd | London | 2016 |
| Burry Port Marine Services Ltd | Burry Port | 2021 |
| Bursali Group Ltd | Cambridge | 2024 |
| Burscough New and Reclaimed Timber Limited | Liverpool | 2025 |
| Burscough Rewinds Ltd | Ormskirk | 2026 |
| Bursledon Outboards Sales & Service Ltd | Southampton | 2010 |
| Burslem Memorials Limited | Frant | 2013 |
| Burspoke Ltd | Sittingbourne | 2024 |
| Burst Drink Limited | Waltham Abbey | 2014 |
| Burt and Gurt Jewellery Ltd | London | 2013 |
| Burt's Cheese Limited | Crewe | 2016 |
| Burtech CYF | Llanrwst | 2006 |
| Burtling International Limited | Wolverhampton | 2017 |
| Burton & Barlow Engineering Limited | Bury | 1977 |
| Burton & Smith Limited | Redditch | 2003 |
| Burton Beds Limited | Dewsbury | 2020 |
| Burton Bespoke Furniture Ltd | Pickstock | 2023 |
| Burton Boat Co Ltd | Lichfield | 2016 |
| Burton Bridge Brewery Limited | Burton-On-Trent | 2002 |
| Burton Brothers Brick and Stone Ltd | Haslemere | 2021 |
| Burton Delingpole & Co. Limited | Brierley Hill | 2001 |
| Burton Design's Ltd | Durham | 2025 |
| Burton Electrical & Plumbing Solutions Ltd | Burton-On-Trent | 2024 |
| Burton Flexo Supplies Limited | Grays | 1998 |
| Burton Joinery (Construction) Limited | Harlow | 1984 |
| Burton Laminates Limited | Harlow | 2000 |
| Burton Mill Hydro Ltd | Petworth | 2016 |
| Burton Mouldings Ltd | Tarporley | 2025 |
| Burton Performance Centre Limited | Leytonstone | 1972 |
| Burton Richards Limited | King'S Lynn | 2006 |
| Burton Rubber Co. Limited | Burton On Trent | 1976 |
| Burton SAW International Limited | Billingshurst | 1976 |
| Burton Sheet Metal Limited | Derby | 1997 |
| Burton Stove Enamelling Limited | Burton-On-Trent | 2019 |
| Burton Waters Marina Limited | Lincoln | 2000 |