| Brady and Braehead Ltd | Manufacturing | 2021 |
| Brady Energy UK Limited | Information & communication | 1999 |
| Brae Analytics Ltd | Information & communication | 2021 |
| Brae Link Systems Ltd | Information & communication | 2025 |
| Brae Wind Energy Limited | Energy | 2025 |
| Braebank Limited | Real estate | 2021 |
| Braebank Travel Ltd | Administrative & support | 2024 |
| Braehead (SFO Enterprises) Limited | Agriculture & fishing | 1978 |
| Braehead Mortgages Ltd | Financial services | 2013 |
| Braemar Creations Ltd | Wholesale & retail | 2020 |
| Braemar Industries L.P. | | 2015 |
| Braemar Investments Limited | Professional & scientific | 2006 |
| Braemont Ltd | Information & communication | 2025 |
| Braemoray Developments Ltd | Construction | 2024 |
| Braemoray Estates Ltd | Construction | 2024 |
| Braemoray Homes Ltd | Construction | 2024 |
| Braemoray Ltd | Construction | 2024 |
| Braen Systems LP | | 2014 |
| Braepeak Limited | Construction | 2009 |
| Braes of Doune Wind Farm (Scotland) Limited | Energy | 2003 |
| Brafford Management LP | | 2013 |
| Brago Ltd | Real estate | 2022 |
| Brahma 6-1 Scotland LP | | 2010 |
| Brahma 6-A Scotland LP | | 2010 |
| Brahma 7-1 Scotland LP | | 2010 |
| Brahma 7-A Scotland LP | | 2010 |
| Brahma 7-B Scotland LP | | 2010 |
| Brahma 7-C Scotland LP | | 2010 |
| Brahma US Scotland LP | | 2010 |
| Brahmin LP | | 2003 |
| Braid Financial Planning Limited | Financial services | 2024 |
| Braid Hills Road Limited | Real estate | 2024 |
| Braid Vets Limited | Professional & scientific | 2011 |
| Braidcove Limited | Professional & scientific | 1999 |
| Braidhaugh Park Limited | Hospitality | 2006 |
| Braidlaw Limited | Agriculture & fishing | 2023 |
| Braidlea Inc Ltd | Agriculture & fishing | 2025 |
| Braidmuir Limited | Transport & logistics | 2000 |
| Braidnorth Limited | Administrative & support | 2018 |
| Braids & Glam Ltd | Other services | 2025 |
| Braids Consulting Limited | Professional & scientific | 2025 |
| Braids Holdings Ltd | Professional & scientific | 2024 |
| Braids Investments Limited | Real estate | 2005 |
| Braidwood Fire Limited | Real estate | 2004 |
| Brain Brolly Ltd | Health & social care | 2019 |
| Brain Co-Invest General Partner LLP | | 2022 |
| Brain Co-Invest II L.P. | | 2025 |
| Brain Co-Invest L.P. | | 2022 |
| Brain Health Scotland Life Sciences Ltd | Professional & scientific | 2022 |
| Brain Salad Ltd | Administrative & support | 2026 |
| Braindev LP | | 2017 |
| Brainvista Technologies Ltd | Information & communication | 2024 |
| Brainway Systems LP | | 2017 |
| Brainy Cheeks Ltd | Information & communication | 2024 |
| Brainyard Logistics Ltd | Administrative & support | 2025 |
| Brainyq Ltd | Information & communication | 2023 |
| Braith Shipping LP | | 2012 |
| Brakenburry Glendower & Ratcliff Engineering Services | | 1993 |
| Brakesafe Garage Ltd | Wholesale & retail | 2025 |
| Bralinton Management LP | | 2012 |
| Brama Business LP | | 2017 |
| Bramant Alliance LP | | 2019 |
| Bramaradri LP | | 2001 |
| Bramble Bars Limited | Hospitality | 2006 |
| Bramble Events Limited | Other services | 2014 |
| Brambs LP | | 2014 |
| Brampton International & Co | | 1994 |
| Brand 20:20 Limited | Professional & scientific | 2001 |
| Brand 7 Consulting Limited | Information & communication | 2018 |
| Brand Colors LP | | 2021 |
| Brand Corporate LP | | 2016 |
| Brand Eleven LP | | 2016 |
| Brand Export LP | | 2015 |
| Brand Insiders Limited | Professional & scientific | 2017 |
| Brand New Enterprise Ltd | Professional & scientific | 2018 |
| Brand One LP | | 2016 |
| Brand Preciosa LP | | 2016 |
| Brandeco Sales L.P. | | 2012 |
| Branded Japan Ltd. | Wholesale & retail | 2019 |
| Brandera Invest LP | | 2016 |
| Brandex Export LP | | 2015 |
| Brandfield Promotions LP | | 2017 |
| Brandguards Law Firm LP | | 2014 |
| Brandifyx Ltd | Information & communication | 2024 |
| Brandin Structure LP | | 2012 |
| Branding Counsel MT Ltd | Professional & scientific | 2021 |
| Brandlex Contracts L.P. | | 2014 |
| Brandon Conception LP | | 2017 |
| Brandory Ltd | Information & communication | 2025 |
| Brandport Impex L.P. | | 2012 |
| Brands Corporation LP | | 2017 |
| Brandside Ltd | Information & communication | 2026 |
| Brandsmith Studio Ltd | Professional & scientific | 2026 |
| Brandtrade L.P. | | 2013 |
| Brandville Resources L.P. | | 2015 |
| Brandwell Trade L.P. | | 2011 |
| Brannaton Sales LP | | 2012 |
| Brant Corp LP | | 2014 |
| Branton Impex LP | | 2014 |
| Brapton SP | | 2005 |