| Brilliant Embroidery Limited | Verwood | 2012 |
| Brilliant Marine Bubbles Ltd | London | 2019 |
| Brilliant Tech Limited | Manchester | 2007 |
| Brilliant Trading & Investment Limited | Stafford | 2010 |
| Brilliant-Journey.Com Ltd | London | 2023 |
| Brilliantly Collective Ltd | Falmouth | 2023 |
| Brilliantly Green Limited | Falmouth | 2025 |
| Brilliantly Organised Limited | Falmouth | 2025 |
| Brima Holst&Crane Ltd | Cambridge | 2019 |
| Brimar Limited | Stoke Prior | 2021 |
| Brimas Holdings Ltd | Lytham St.Annes | 2016 |
| Brimgreen Limited | Haverfordwest | 2010 |
| Brimington Pharmacy Limited | Sheffield | 1958 |
| Brimor Property Ltd | West Yorkshire | 2006 |
| Brimora Pulse Ltd | London | 2025 |
| Brims Civil Engineering Limited | Gateshead | 2011 |
| Brims Homes Limited | Gateshead | 2011 |
| Brims Maintenance Limited | Gateshead | 2011 |
| Brimstage Limited | London | 2013 |
| Brindlecore Group Ltd | Doncaster | 2026 |
| Brindleforge Ltd | Doncaster | 2026 |
| Brindley Street Freehold Ltd | Stourport-On-Severn | 2016 |
| Brindleys (Birmingham) Limited | Birmingham | 2025 |
| Brindleys Directors Ltd | West Midlands | 2003 |
| Brindleys Online Ltd | Birmingham | 2014 |
| Brindleys Payroll Ltd | Birmingham | 2020 |
| Brine Echo Ltd | London | 2025 |
| Brinel Ltd | Edinburgh | 2010 |
| Bring the Noise Pyrotechnics Ltd | Wellingborough | 2022 |
| Bringaker Bygg & Vedlikehold Limited | London | 2019 |
| Brinkcraft Limited | Norwich | 1959 |
| Brinklake Limited | Leighton Buzzard | 2009 |
| Brinkley Cottage Ltd | London | 2013 |
| Brinkmann MAY Limited | Leyland | 2018 |
| Brinsea Batch (Bristol) Investments Limited | London | 2023 |
| Brinsea Batch Farm Investments Limited | London | 2023 |
| Brintex Limited | London | 1969 |
| Brinwell Limited | Malvern | 2001 |
| Brio Media Ltd | Hinckley | 2018 |
| Briony Property Developments Ltd | Magherafelt | 2006 |
| Brisas Investments Ltd | London | 2022 |
| Brisbane Street 1972 Limited | Greenock | 2014 |
| Brisco Hire Services Limited | Swansea | 1980 |
| Brisdale Group Ltd | London | 2026 |
| Brise Ltd | Coventry | 2019 |
| Briskoda Limited | Lancashire | 2006 |
| Bristol & Somerset Property Management Limited | London | 2026 |
| Bristol Ambulance EMS Limited | Bristol | 2010 |
| Bristol and Bath Concrete Limited | Bristol | 2004 |
| Bristol and West Fire Doors Ltd | Bristol | 2025 |
| Bristol Aviation Company Limited(The) | Camberley | 1910 |
| Bristol Business Centre Limited | Bristol | 2008 |
| Bristol Business School Limited | Bristol | 1990 |
| Bristol Camp Ltd | London | 2021 |
| Bristol Cancer Help Centre Limited | Pill | 2006 |
| Bristol Care and Repair Limited | Bristol | 2010 |
| Bristol Channel Ship Repairers Holdings Limited | Newport South Wales | 1895 |
| Bristol City Airport Limited | Bristol | 1995 |
| Bristol City Leap Limited | Bristol | 2018 |
| Bristol DPF Centre Limited | Bristol | 2018 |
| Bristol Drivers Club Limited | Preston | 2014 |
| Bristol Electrical Services Ltd | Bristol | 2024 |
| Bristol Energy & Technology Services (Supply) Limited | Bristol | 2016 |
| Bristol Enterprises Ltd | Salford | 2017 |
| Bristol Entrepreneurs Club Limited | Bristol | 2024 |
| Bristol Forklifts Ltd | Aldridge | 2020 |
| Bristol Gutter Cleaning Ltd | Bristol | 2021 |
| Bristol Homes Limited | Bristol | 2018 |
| Bristol House Developments Ltd | Bristol | 2014 |
| Bristol House Painting Limited | Bristol | 2010 |
| Bristol Infrastructure Limited | Bristol | 2018 |
| Bristol Institute of Legal Practice | Bristol | 1998 |
| Bristol Law School Limited | Bristol | 1989 |
| Bristol Mailing Services Limited | Bristol | 1995 |
| Bristol Media Group Limited | Bristol | 2019 |
| Bristol Office Machines Limited | Bristol | 2006 |
| Bristol Omnibus Company Limited | Wells | 2003 |
| Bristol One Stop Garage Ltd | Bristol | 2026 |
| Bristol Owners Limited | Preston | 2014 |
| Bristol Recovery Ltd | Bristol | 2022 |
| Bristol Robotics Laboratory Limited | Bristol | 2019 |
| Bristol Robotics Limited | Bristol | 2019 |
| Bristol School of Art Media and Design Limited | Bristol | 2004 |
| Bristol Siddeley Engines Limited | London | 1958 |
| Bristol Skills Academy Limited | Chesterfield | 2020 |
| Bristol Stone Supplies Limited | Gloucester | 2014 |
| Bristol Street (NO.1) Limited | Gateshead | 1997 |
| Bristol Street (NO.2) Limited | Gateshead | 1959 |
| Bristol Street Commercials (Italia) Limited | Gateshead | 2007 |
| Bristol Street Fifth Investments Limited | Gateshead | 1995 |
| Bristol Street Fleet Services Limited | Gateshead | 1974 |
| Bristol Street Group Limited | Gateshead | 1996 |
| Bristol Street Limited | Gateshead | 1924 |
| Bristol Student Accommodation Ltd | Bristol | 2026 |
| Bristol Syrup Company Limited | Bristol | 2016 |
| Bristol Systems Limited | Bath | 2023 |
| Bristol Technology Laboratory Limited | Bristol | 2019 |
| Bristol Tramways & Carriage Company Limited | Wells | 2003 |
| Bristow & Offspring Limited | London | 1999 |
| Bristow Burrell Limited | Guildford | 2016 |