| Bristol Rosettes Ltd | Torrington | 2016 |
| Bristol Soap Limited | Nottingham | 2015 |
| Bristol Stair Ltd | Bridgwater | 2019 |
| Bristol Superlight Limited | Yateley | 2015 |
| Bristol Surgical Air Ltd | Bristol | 2013 |
| Bristol Timber Manufacturing Ltd | Bristol | 2024 |
| Bristol Uniforms Limited | Yate | 1961 |
| Bristol Windows Limited | Bristol | 2012 |
| Bristol Wood Recycling Project | Bristol | 2004 |
| Bristol Woodtech Limited | Bristol | 1993 |
| Bristol Wrought Iron Fabrication Ltd | Bristol | 2024 |
| Bristol-Myers Squibb Pharmaceuticals Limited | Denham | 1990 |
| Bristolcarmarket Ltd | Bristol | 2021 |
| Bristolmeats Limited | Bristol | 2025 |
| Bristone Precast Ltd | Gravesend | 2023 |
| Bristow Brick Limited | Ryde | 1998 |
| Bristow Brothers Hereford Limited | Hereford | 2012 |
| Bristow Dental Laboratory Ltd | Ballymena | 2025 |
| Bristow Prototype Sheet Metal Work Limited | Nuneaton | 2006 |
| Bristow Sports Cars Ltd | London | 2025 |
| Bristow's Carpentry & Developments Ltd | Wiltshire | 2007 |
| Brit Adhesives Ltd | Oldbury | 2013 |
| Brit Bangla Media Limited | London | 2024 |
| Brit Bangla Services Ltd | London | 2016 |
| Brit Direct Limited | Uttoxeter | 2017 |
| Brit Glass Ltd | London | 2024 |
| Brit Gold London Limited | Cleckheaton | 2021 |
| Brit Innovations Group Limited | Southam | 2025 |
| Brit JAM Traditional Jamaican Patties Ltd | West Bromwich | 2025 |
| Brit Manufacturing Solutions Limited | Torquay | 2012 |
| Brit Mobile Tyres Ltd | Reading | 2025 |
| Brit Nova Airtech Ltd | London | 2025 |
| Brit Packaging and Logistics Ltd | Croydon | 2018 |
| Brit Patch Limited | Bromsgrove | 2025 |
| Brit Records Ltd | Leicester | 2019 |
| Brit Taste Ltd | Heywood | 2024 |
| Brit Teak Furniture Limited | Portsmouth | 2023 |
| Brit Windows Limited | Ilford | 2018 |
| Brit-Eng Ltd | Sheffield | 2025 |
| Brit-Phil Enterprise Limited | Lymington | 2012 |
| Brit-Shish Limited | London | 2019 |
| Brit-Stitch Limited | Abergavenny | 2012 |
| Brit-Tipp Limited | Warrington | 1983 |
| Brit-Tipp TM Ltd | Warrington | 2023 |
| Brita Finish Limited | West Midlands | 2002 |
| Britair Filters Ltd | London | 2025 |
| Britair Southwest Limited | Bristol | 2013 |
| Britair UK Limited | Clevedon | 2022 |
| Britaircon Limited | Birmingham | 2025 |
| Brital Foods Limited | London | 1994 |
| Britalco Engineering Limited | Shrewsbury | 1978 |
| Britalia Door Products Limited | Penarth | 2004 |
| Britalia Doors Limited | Penarth | 2017 |
| Britamerica Ventures Ltd | Walsall | 2025 |
| Britamin UK Limited | Grays | 2026 |
| Britampco Limited | Doncaster | 2022 |
| Britanade Cakes Ltd | Chesterfield | 2026 |
| Britania Designs Limited | Stoke On Trent | 1992 |
| Britania Ice Cream Ltd | London | 2026 |
| Britanic Cabling Production Limited | Northampton | 2020 |
| Britanica Medicines & Medical Equipment Ltd | London | 2016 |
| Britannia Adhesives Limited | Basildon | 1986 |
| Britannia Bespoke Furniture Ltd | Rochford | 2018 |
| Britannia Biltong Ltd | Edgware | 2024 |
| Britannia BIO Limited | Misperton | 2007 |
| Britannia Biscuits Company (International) Limited | Middlesbrough | 2000 |
| Britannia Blinds Limited | Oxford | 1989 |
| Britannia Brewery Ltd | Cardiff | 2023 |
| Britannia Brewing Co Ltd | Dudley | 2024 |
| Britannia Cooling Limited | Leeds | 1988 |
| Britannia Defence Systems Limited | Windsor | 2004 |
| Britannia Design and Printing Limited | Birmingham | 2014 |
| Britannia Door Panels Limited | Keighley | 2018 |
| Britannia Doors Ltd | Bradford | 2022 |
| Britannia Engineering UK Limited | Paignton | 2020 |
| Britannia Food Ingredients Ltd | Polegate | 2025 |
| Britannia Glazing Limited | West Bromwich | 2018 |
| Britannia Hide Ltd | Leicester | 2025 |
| Britannia Hose & Rubber Limited | Birmingham | 1994 |
| Britannia Joinery Limited | Banbury | 2012 |
| Britannia Kitchen Ventilation Limited | Lincolnshire | 1995 |
| Britannia Knitwear Manchester Limited | Manchester | 2023 |
| Britannia Labels Limited | Leicester | 2001 |
| Britannia LEV Engineering Ltd | Rotherham | 2021 |
| Britannia Lifts Limited | Sittingbourne | 2018 |
| Britannia Lightning Prevectron Limited | Skegness | 1999 |
| Britannia Lock & Safe Limited | Newcastle Under Lyme | 1996 |
| Britannia London Limited | Ringwood | 2016 |
| Britannia Machinery (Pontefract) Limited | Ossett | 1986 |
| Britannia Marine Services Limited | Borehamwood | 1995 |
| Britannia Mills Limited | Chester | 2020 |
| Britannia Mirrors Limited | London | 2004 |
| Britannia Model Company Ltd | London | 2026 |
| Britannia Office Systems Limited | Whitley Bay | 1997 |
| Britannia OIL Ltd | Manchester | 2025 |
| Britannia OIL Services Limited | 50 Windsor Avenue Wimbledon | 2002 |
| Britannia Paints Ltd | Middlewich | 1985 |
| Britannia Petroleum Limited | | 2004 |
| Britannia Picture Framing Limited | Newcastle Upon Tyne | 2022 |
| Britannia Precision Engineering Limited | Sheffield | 1997 |