| Belief Botanicals Ltd | Poole | 2022 |
| Belief Power Limited | Gillingham | 2024 |
| Believe Cereals Limited | London | 2011 |
| Believe Interiors Ltd | Gloucester | 2025 |
| Believe IT Ltd | Enniskillen | 2025 |
| Believeafrica Limited | London | 2024 |
| Believers Loveworld Limited | Rainham | 2014 |
| Belimed Limited | Horsham | 2004 |
| Belinda Mary Hale Fine Jewellery Ltd | London | 2023 |
| Beliness Limited | Beckenham | 2025 |
| Belisha Beacons Limited | London | 2009 |
| Belissima Brazilian Bakery Ltd | London | 2026 |
| Belkas Rail Services Ltd | Eastbourne | 2012 |
| Belken Watch Group Ltd | London | 2026 |
| Belkin Limited | Wellingborough | 1996 |
| Belkor Bay Limited | Watford | 2018 |
| Bell & Bain (Holdings) Limited | Glasgow | 2012 |
| Bell & Bain Limited | Glasgow | 1891 |
| Bell & Oak Furniture Ltd | Wolverhampton | 2022 |
| Bell Air Refrigeration Limited | Inverurie | 2025 |
| Bell and Finch Candles Ltd | London | 2021 |
| Bell Bespoke Interiors Ltd | Nottingham | 1998 |
| Bell Boats Limited | Norwich | 1955 |
| Bell Books (Jane Gore) Limited | Middlesex | 1959 |
| Bell Catering Solutions Ltd | Heathfield | 2025 |
| Bell Classics Limited | Harpenden | 2019 |
| Bell Concrete Ltd | Sandy | 2025 |
| Bell Gears Limited | Sheffield | 1954 |
| Bell Graphics Ltd | Ellesmere Port | 2006 |
| Bell Group (Europe) Ltd | Peterborough | 2015 |
| Bell House Foods Limited | Ashford | 2001 |
| Bell Hydraulics Limited | Newport | 2007 |
| Bell Isolation Systems Limited | Livingston | 2001 |
| Bell Mechanical Limited | South Shields | 2026 |
| Bell Orthotics Ltd | Durham | 2016 |
| Bell Packaging Limited | London | 1974 |
| Bell Plastics Limited | Knaresborough | 1987 |
| Bell Precision Limited | Letchworth | 1996 |
| Bell R Limited | Runcorn | 1999 |
| Bell Rigging Access Services Limited | Portsmouth | 2010 |
| Bell Steel Fabrications Limited | Witney | 1997 |
| Bell System (Telephones) Limited | Milton Keynes | 1971 |
| Bell Technologies Limited | London | 1994 |
| Bell's Blade Services Ltd | Sunderland | 2019 |
| Bell,Sons & Co.(Druggists)Limited | Southport | 1939 |
| Bella & BAO Limited | London | 2025 |
| Bella & BOW Limited | Wigan | 2014 |
| Bella & Duke Limited | Rosyth | 2016 |
| Bella & Goose Limited | Penryn | 2019 |
| Bella 5 Beans Ltd | Southampton | 2024 |
| Bella Amour Limited | Bristol | 2023 |
| Bella and Bear Bakery Limited | Leicester | 2023 |
| Bella and Bertie Beverages Ltd | Chester | 2025 |
| Bella Barista Ltd | Wellingborough | 1988 |
| Bella Beds Ltd | Huddersfield | 2025 |
| Bella Blinds, Shutters & Curtains Limited | Loughton | 2025 |
| Bella Catering Ltd | Barking | 2020 |
| Bella Chilled Foods Ltd | Ipswich | 2024 |
| Bella Cucciola Ltd | Glasgow | 2023 |
| Bella Design Ltd | Northampton | 2022 |
| Bella Diamonds Design Limited | London | 2021 |
| Bella Fashionwear Ltd | Leicester | 2019 |
| Bella Figura Limited | London | 1982 |
| Bella Freud Ltd | London | 2012 |
| Bella Holdings (UK) Limited | London | 2013 |
| Bella Home Interiors Ltd | Coulsdon | 2020 |
| Bella Isla Limited | Cambridge | 2019 |
| Bella Italy Ltd | London | 2022 |
| Bella Jane Jewellery Ltd | Tunbridge Wells | 2012 |
| Bella Katee Pets Ltd | Truro | 2021 |
| Bella Lavore Essentials Ltd | Ruislip, | 2024 |
| Bella Loves Ltd | Birmingham | 2024 |
| Bella Monaire Ltd | Croydon | 2025 |
| Bella Sposa Ltd | Morden | 2026 |
| Bella Stampa Ltd | Leicester | 2018 |
| Bella Tela Limited | Taunton | 2011 |
| Bella Trendy Ltd | London | 2017 |
| Bella Turbines Limited | Bideford | 2018 |
| Bella Vision Designs Ltd | Wolverhampton | 2019 |
| Bella Zanj Ltd | London | 2022 |
| Bella&Bruno K9 Security Ltd | Wickford | 2021 |
| Bella's Interiors Limited | Cheltenham | 2017 |
| Bella's Apples Limited | Haslemere | 2019 |
| Bella's Baskets Limited | Leeds | 2025 |
| Bella's Brigadeiros Limited | Eastleigh | 2025 |
| Bella's Juice Bar & Patisserie Limited | Thornton Heath | 2025 |
| Bella's Secret Ltd | Eastbourne | 2013 |
| Bella-Dav Ltd | Gravesend | 2020 |
| Bella-Dion Group Ltd | Glasgow | 2016 |
| Bellabodie Limited | Great Yarmouth | 2019 |
| Bellacouche Ltd | Newton Abbot | 2024 |
| Belladonna Beads Ltd | London | 2023 |
| Bellagio Marble Ideas Limited | Warwick | 2021 |
| Bellagio Stone Limited | Warwick | 2005 |
| Bellakg Limited | Gravesend | 2015 |
| Bellamaisa.Com Ltd | London | 2023 |
| Bellamanti Limited | London | 2025 |
| Bellamet (UK) Limited | Calne | 1994 |
| Bellamie Foods PVT Ltd | Hampton | 2022 |
| Bellamoon Limited | Ballynahinch | 2016 |