| Burley Securities Ltd | Taunton | 2023 |
| Burlings Bank Ltd | London | 2004 |
| Burlington 2021 Limited | Stockbridge | 2021 |
| Burlington Associates Limited | London | 2003 |
| Burlington Bertie Services (NO.1) Ltd | Northwich | 2020 |
| Burlington Bertie Services Ltd | Northwich | 2020 |
| Burlington Capital Finance Limited | London | 2019 |
| Burlington Capital Holdings (Newco) Limited | London | 2019 |
| Burlington Capital Investments Limited | London | 2019 |
| Burlington Construction Materials Group Limited | Kirkby-In-Furness | 2023 |
| Burlington Education Finance Limited | London | 2019 |
| Burlington Education Holdings Limited | London | 2019 |
| Burlington Education Ltd | London | 2018 |
| Burlington Financial Planning Limited | London | 2008 |
| Burlington Financial Solutions Ltd | Staffordshire | 2007 |
| Burlington OBS Limited | London | 2018 |
| Burlington Ventures 1 Limited | London | 2017 |
| Burlington Ventures Limited | London | 2017 |
| Burlingtons Holdings Limited | Longham | 2019 |
| Burmah (Holdings) Limited | Glenrothes | 2016 |
| Burmas 19 Limited | Stamford | 2019 |
| Burmi Group Ltd | Wolverhampton | 2023 |
| Burmi Investments Ltd | Wolverhampton | 2023 |
| Burn Capital Limited | Colchester | 2017 |
| Burn Farm Group Limited | Oldham | 2025 |
| Burnaby Baker Trading Company Limited | York | 2016 |
| Burnaby Holdings Ltd | Preston | 2026 |
| Burnawn Holdings Ltd | Kilmarnock | 2018 |
| Burnbyres Limited | Kilmarnock | 2023 |
| Burncastle Limited | Esher | 1978 |
| Burncoose Minerals Limited | Truro | 2024 |
| Burnden Pepper Limited | Colchester | 2006 |
| Burnett & Associates Limited | Portsmouth | 1980 |
| Burnett and Co Financial Planning Ltd | Sale | 2016 |
| Burnett Financial Services Limited | Edinburgh | 2011 |
| Burnett Mortgages Limited | Doncaster | 2018 |
| Burnetts Holdings Limited | Northampton | 2018 |
| Burnetts Trust Corporation Limited | Carlisle | 2022 |
| Burngreave Holdings South Yorkshire Ltd | Sheffield | 2011 |
| Burnham Acadia Limited | Birmingham | 2016 |
| Burnham Group Limited | Alton | 2004 |
| Burnham Holdings Ltd | Burnham Market | 2024 |
| Burnham Hope Holdings Limited | Colchester | 2017 |
| Burnham I.C.O.P.E Limited | Purley | 2022 |
| Burnham Mortgage Adviser Ltd | Burnham-On-Sea | 2020 |
| Burnhaven Properties Holdings Limited | Banchory | 2012 |
| Burnhead Holdings Limited | Dumfries | 2021 |
| Burnhouse Trust | Bonnybridge | 2026 |
| Burning Aurora Limited | Worksop | 2021 |
| Burning Sky Limited | Leyland | 2015 |
| Burnley Padel Club Limited | Colne | 2020 |
| Burnley Propco Limited | Leeds | 2025 |
| Burnley Savings and Loans Limited | Burnley | 2011 |
| Burnley Tyre & Battery Limited | Burnley | 1997 |
| Burns & Mcdonnell Enterprises Limited | London | 2015 |
| Burns & Wilcox Global Solutions Limited | London | 1995 |
| Burns Legacy Holdings Ltd | Barrow In Furness | 2026 |
| Burns LHC Limited | Waterlooville | 2025 |
| Burns London Ltd | Guildford | 2020 |
| Burns Murphy Associates Limited | | 2004 |
| Burns NED Services Limited | Bath | 2018 |
| Burnsearle Limited | Stockport | 2024 |
| Burnsey Limited | Heywood | 2010 |
| Burnsey the Broker Limited | Heywood | 2024 |
| Burnside Caravan Parks Holdings Limited | Knutsford | 2019 |
| Burnside Country Parks Holdings Limited | Leek | 2023 |
| Burnside Group Ltd | Lisburn | 2025 |
| Burnside Holdings Limited | Stirling | 2022 |
| Burnside Kingdom Investments Ltd | Ballymoney | 2023 |
| Burnt ASH Hill Ltd | London | 2025 |
| Burnt ASH Holdings Limited | Gloucester, | 2015 |
| Burnt Lemon Ltd | Worthing | 2024 |
| Burnview Holdings Limited | Belfast | 2016 |
| Burray Holdings Ltd | Tranent | 2025 |
| Burrell Capital Group Ltd | Ipswich | 2026 |
| Burrell Construction Holdings Ltd | Doncaster | 2023 |
| Burrell Estates Ltd | Aldershot | 2023 |
| Burrell Holdings Ltd | Norwich | 2020 |
| Burren Energy India Limited | London | 2004 |
| Burren Energy PLC | London | 1998 |
| Burrett Holdings Ltd | Ferndown | 2017 |
| Burridge Oliver (Holdings) Limited | Derby | 2016 |
| Burrington Estates (Commercial) Limited | Clyst St Mary | 2016 |
| Burrington Estates (Eurotech House) Limited | Exeter | 2017 |
| Burrington Estates (Holdings) Limited | London | 2017 |
| Burrington Estates (New Homes) Limited | London | 2016 |
| Burrington Estates (RS) Limited | London | 2017 |
| Burrington Estates Commercial Holdings Limited | Clyst St Mary | 2017 |
| Burrington Estates Group Limited | London | 2021 |
| Burrington Lending Company Limited | Clyst St Mary | 2014 |
| Burroughs 10 Limited | Bradford | 2025 |
| Burrow Humphreys (Midlands) Limited | Greater Manchester | 2004 |
| Burrow Humphreys Limited | Lancashire | 1997 |
| Burrow Music Investments Limited | London | 2019 |
| Burrowed Group Ltd | Eakring | 2026 |
| Burrows Enterprises Ltd | London | 2024 |
| Burrows Family Investments Limited | Kettering | 2022 |
| Burrows Financial Limited | Paignton | 2021 |
| Burrows Financial Services Limited | Thornton-Cleveleys | 2022 |
| Burrows Graham (Holdings) Limited | Altrincham | 2022 |