| Blush Candle Company Ltd | Manchester | 2025 |
| Blush Design & Marketing Services Ltd | Tunbridge Wells | 2019 |
| Blush Kult Limited | Batley | 2025 |
| Blush Publishing Limited | Holywell | 2006 |
| Blush Tech Limited | London | 2011 |
| Blush Textile Ltd | Manchester | 2025 |
| Blushing Haze by DEE Limited | Manchester | 2025 |
| Blutek Sign Maintenance Ltd | Nottingham | 2026 |
| Blutuff Ltd | London | 2025 |
| Bluu Spirit Limited | Birmingham | 2016 |
| Bluueer Services Ltd | Sheffield | 2024 |
| Bluwave Ltd | Beckenham | 2003 |
| Blvck Lounge Ltd | Wembley | 2019 |
| Blww Ltd | Glasgow | 2025 |
| Blxckprint Ltd | Romford | 2020 |
| Blxnk Limited | Nuneaton | 2024 |
| Blychem Limited | Billingham | 1996 |
| Blynk Engineering Ltd | Woodford | 2022 |
| Blyss Aroma Ltd | Preston | 2025 |
| Blyss Global Ltd | Kington | 2026 |
| Blyth Bespoke Fabrication and Coatings Ltd | Blyth | 2023 |
| Blyth Bespoke Fabrication Ltd | Blyth | 2025 |
| Blyth Catamarans Ltd | Canvey Island | 2017 |
| Blyth Equipment Limited | Wisbech | 2010 |
| Blyth Valley Toilets Limited | Runcorn | 2012 |
| Blythe Contractors & Fencing Limited | Cheadle | 1972 |
| Blythe Industrial Packaging Limited | Coventry | 1991 |
| Blythe Mill Sheds & Summerhouses Ltd | London | 2022 |
| Blythe Patterns Ltd | Cresswell | 2003 |
| Blythe Pictures Limited | Stoke On Trent | 2004 |
| Blyton Ice Cream Limited | Gainsborough | 2003 |
| Blyton Ice Cream Trading Ltd | Rotherham | 2026 |
| Blyvora Lumisse Ltd | London | 2025 |
| BLÅ Intelligems Studio Ltd. | London | 2022 |
| BLÉ Couture Cakes Ltd | Maidstone | 2020 |
| BM 203 Limited | Merthyr Tydfil | 2015 |
| BM Aerotech Limited | Porthcawl | 2020 |
| BM Bats Limited | Birmingham | 2026 |
| BM Beauty & Health Media Limited | Wokingham | 2026 |
| BM Bespoke Joinery Ltd | Stoke-On-Trent | 2023 |
| BM Carpentry (Beds) Ltd | Northampton | 2025 |
| BM Carpentry Limited | Gillingham | 2012 |
| BM Catalysts Limited | Mansfield | 1982 |
| BM Chippy Worx Ltd | Bristol | 2026 |
| BM Colour (UK) Limited | Hyde | 1996 |
| BM Contractors (Derby) Limited | Lincoln | 2003 |
| BM Controls Ltd | Hull | 2009 |
| BM Doors Limited | Barnsley | 2024 |
| BM Electrical Maintenance Ltd | Leicester | 2025 |
| BM Electro Ltd | Mitcham | 2014 |
| BM Energy Limited | Liverpool | 2023 |
| BM Equine Ltd | Sandbach | 2026 |
| BM Flooring Ltd | Bracknell | 2023 |
| BM Joinery London Ltd | London | 2022 |
| BM Kitchen Designs Limited | Belfast | 2023 |
| BM Machinery Limited | Redditch | 2022 |
| BM Manufacturing Ltd | Carrickfergus | 2018 |
| BM Mechanical Services Limited | Penicuik | 2025 |
| BM Office Furniture Solutions Limited | | 2006 |
| BM Prudhoe Limited | Northumberland | 2026 |
| BM Rail Solutions Ltd | Clacton-On-Sea | 2026 |
| BM Realisations 2024 Limited | Liverpool | 1997 |
| BM Signalling Solutions Ltd | Ashton-Under-Lyne | 2023 |
| BM Temperature Control Limited | Edinburgh | 2013 |
| BM Trade Ltd | Prestatyn | 2018 |
| BM Upholstery Ltd | London | 2023 |
| Bm&Nco Ltd | High Wycombe | 2017 |
| Bm-Motorsport-Fabrications Ltd | Dingwall | 2023 |
| Bm-Nova Ltd | London | 2025 |
| BMA Electrical Contractors Ltd | Kington | 2020 |
| BMA Motors Ltd | Ringwood | 2009 |
| BMA Motorsport Ltd | Romford | 2025 |
| Bmac Limited | Manchester | 2005 |
| Bmac Welding Ltd | Derry | 2026 |
| Bmair PVS UK Limited | Brentford | 2024 |
| Bman Brewery Ltd | Oxford | 2021 |
| Bmaw Ltd | Nottingham | 2023 |
| BMB Fabrications Ltd | Glasgow | 2015 |
| BMB Fleet Care Ltd | Liverpool | 2025 |
| BMB Steel Structures Limited | Basildon | 2017 |
| BMB Structural Steelwork Ltd | Birmingham | 1992 |
| BMC Baits Ltd | Northampton | 2025 |
| BMC British Motorcycles Ltd | Wirral | 2021 |
| BMC Company (IOW) Ltd | Mexborough | 2024 |
| BMC Concepts Ltd | Aylesbury | 2023 |
| BMC Digital Services Dorset Ltd | Poole | 2010 |
| BMC Energy Services Limited | Horsham | 2014 |
| BMC Fabrication Ltd | Castlewellan | 2025 |
| BMC Industries Limited | Mansfield | 1986 |
| BMC Mechanical Repairers Limited | Liverpool | 2008 |
| BMC Tools Limited | London | 2021 |
| BMC2 Electrical Ltd | Coatbridge | 2026 |
| Bmca Worldwide Aviation Limited | Belfast | 2025 |
| Bmcg Electric Ltd | Liverpool | 2024 |
| Bmcraft Ltd | Harrow | 2022 |
| BMD Cycle Repairs Ltd | Solihull | 2024 |
| BMD Southern Ltd | Waterlooville | 2018 |
| BMD Technical Limited | Havant | 2012 |
| BMD Testing Services Limited | Bellshill | 2022 |
| Bmd(Plf) Limited | Blackpool | 2023 |