| Audierne Holdings Limited | Real estate | 2016 |
| Audio Visual Integrators Ltd | Information & communication | 2020 |
| Augmentia Recordings Ltd | Information & communication | 2023 |
| Augmentia Search Ltd | Administrative & support | 2013 |
| August Events Ltd | Hospitality | 2024 |
| Augusta Consultants Limited | Real estate | 2019 |
| Auraée Beauty Limited | Wholesale & retail | 2026 |
| Aurelian Holdings Ltd | Financial services | 2024 |
| Aurenova Ltd | Professional & scientific | 2024 |
| Aurinko Ltd | Real estate | 2018 |
| Austin Baker Limited | Real estate | 2016 |
| Auto Mobile Valet Limited | Administrative & support | 1993 |
| AUTO99 Ltd | Wholesale & retail | 2012 |
| Autumn Jesse Limited | Information & communication | 2026 |
| Avant Garde (West Molesey) Management Company Limited | Households | 2005 |
| Avant Garde MSP Ltd | Information & communication | 2010 |
| Avbase Building Services Limited | Construction | 2006 |
| AVC Debt Recovery Ltd | Administrative & support | 2026 |
| Avenue Tree Care Ltd | Other services | 2024 |
| AW V+S Limited | Professional & scientific | 2010 |
| AX Consulting Ltd | Information & communication | 2015 |
| Axis Pilates Studio Limited | Education | 2022 |
| AY Business Services Ltd | Professional & scientific | 2022 |
| Azllo Ltd | Other services | 2009 |
| B & I Holdings Limited | Professional & scientific | 2016 |
| B & L Oxshott Ltd | Hospitality | 2019 |
| B D Scaffolding and Maintenance Ltd | Construction | 2025 |
| B Murray Services Ltd | Construction | 2021 |
| B Savage Groundworks Limited | Construction | 2012 |
| B Small Publishing Limited | Information & communication | 2006 |
| B&G Commercial Ltd | Administrative & support | 2024 |
| B.M.G. Autoparts Limited | Wholesale & retail | 1986 |
| B@Titude Limited | Wholesale & retail | 2010 |
| Back to Life Limited | Education | 2002 |
| BAD2RO Films Limited | Information & communication | 2014 |
| Badenstar Limited | Professional & scientific | 1986 |
| Bader Malan Limited | Financial services | 2001 |
| Badger Film & TV Equipment Limited | Wholesale & retail | 2011 |
| Badger Property Holdings Limited | Real estate | 2021 |
| Bainton Accountancy Services Ltd | Professional & scientific | 2015 |
| Bainton Services Limited | Households | 2022 |
| BAL Glaze Limited | Wholesale & retail | 2009 |
| Baldo & Mason Ltd | Health & social care | 2020 |
| Balmoral Mews (Cobham) Management Company Limited | Households | 1998 |
| BAM Active Sports Teamwear Limited | Manufacturing | 2019 |
| BAM Propco (Burnside) Limited | Administrative & support | 2014 |
| BAM Propco (Johnstone) Limited | Administrative & support | 2014 |
| BAM Propco (Newark) Limited | Administrative & support | 2014 |
| BAM Propco (Spiers) Limited | Administrative & support | 2014 |
| Bambrella Ltd | Wholesale & retail | 2010 |
| Bananrocket Limited | Wholesale & retail | 2021 |
| Baobab Brands Limited | Professional & scientific | 2011 |
| Barden Limited | Real estate | 2026 |
| Barebrick Investments Limited | Construction | 2024 |
| Barn Management (UK) 2 Limited | Households | 2004 |
| Barn Meadow Green Limited | Extraterritorial | 2010 |
| Baron Consultancy Limited | Professional & scientific | 2017 |
| Barrington Drive Management Ltd | Households | 2021 |
| Basil E. FRY & Co. Limited | Financial services | 1979 |
| BASLOW8 Ltd | Financial services | 2024 |
| Batz Inc Ltd | Wholesale & retail | 2025 |
| Baulch Holdings Ltd | Professional & scientific | 2026 |
| Bavarian Engineering Ltd | Wholesale & retail | 2026 |
| Bayon Consulting Ltd | Professional & scientific | 2020 |
| BB Fencing Solutions Ltd | Construction | 2025 |
| Bbsocial Care Ltd | Health & social care | 2019 |
| BD Group International Ltd | Professional & scientific | 2018 |
| BDH (Godstone) Limited | Real estate | 2023 |
| Beach Ball Design Limited | Professional & scientific | 2011 |
| Beanco Consulting Ltd | Information & communication | 2016 |
| Beanpole Ltd | Information & communication | 2024 |
| Beaverbrook Estates Limited | Administrative & support | 2011 |
| Beaverbrook Golf Club Limited | Arts & recreation | 2011 |
| Beaverbrook Holdings Limited | Administrative & support | 2010 |
| Beaverbrook Town House Limited | Administrative & support | 2020 |
| Because It's There Limited | Arts & recreation | 2004 |
| Bechwood Close Residents Company Ltd | Households | 2026 |
| Beech Close Residents Management Company Limited | Households | 2019 |
| Beech Grove Management Company Limited | Households | 2008 |
| Behind the Sports Ltd | Wholesale & retail | 2025 |
| Beige Investments Limited | Real estate | 2023 |
| Bell Bros Ltd | Real estate | 2023 |
| Bell Street Restaurant Limited | Hospitality | 2008 |
| Bello Group Limited | Wholesale & retail | 2017 |
| Belvedere Heritage Limited | Construction | 2025 |
| BEM Investments Ltd | Administrative & support | 2020 |
| Benjamin Court Management Company Limited | Households | 1981 |
| Benjemin Beth Projects Limited | Professional & scientific | 2006 |
| Benmor Consulting Ltd | Financial services | 2013 |
| Berisford Mews Residents Company Limited | Households | 1994 |
| Berkeley (Weybridge) Management Co. Limited | Real estate | 1981 |
| Berkshire Investment Group Limited | Real estate | 2017 |
| Beroea City Limited | Hospitality | 2022 |
| Berry Aesthetics Ltd | Other services | 2026 |
| Berry Community Services Limited | Transport & logistics | 2024 |
| Berry Electrical Services (London) Ltd | Construction | 2020 |
| Berrylands Window Company Limited | Construction | 2004 |
| Bert & Blythe Ltd | Manufacturing | 2024 |
| Bespoke Publications Limited | Professional & scientific | 1980 |
| Best Brow Bar Limited | Other services | 2025 |