| Anchor LEG Logistics Ltd | Transport & logistics | 2025 |
| ANN G Property Ltd | Real estate | 2025 |
| Ansell Cleaning Services Ltd | Administrative & support | 2019 |
| Antidote Holdings Ltd | Health & social care | 2021 |
| Antidote LDN Ltd | Health & social care | 2021 |
| Antoni Karpouzas Limited | Information & communication | 2013 |
| Any.All Maintenance Limited | Construction | 2024 |
| Aperture International Ltd | Information & communication | 2026 |
| Apex Golf Company Limited | Wholesale & retail | 2014 |
| APM Accounts Limited | Professional & scientific | 2009 |
| Apricus Group Holdings Limited | Financial services | 2008 |
| April Hamilton Interiors LLP | | 2018 |
| Apsharagroup Ltd | Transport & logistics | 2025 |
| ARB Heating Limited | Construction | 2026 |
| Ardenti Diamonds Limited | Wholesale & retail | 2013 |
| Ardiya Ltd | Wholesale & retail | 2022 |
| Aresta Stay Ltd | Real estate | 2025 |
| Argent Stone Capital Ltd | Construction | 2019 |
| Arian Luxury Group Ltd | Real estate | 2023 |
| Arif Moghal Limited | Health & social care | 2010 |
| Art BC Consultants Limited | Wholesale & retail | 2021 |
| Art Gecko Limited | Arts & recreation | 1999 |
| Ascendant Partners Limited | Professional & scientific | 2016 |
| Ashmore-Short Limited | Education | 2024 |
| ASM Fixing Ltd | Construction | 2025 |
| Atelier 18 Ltd | Other services | 2020 |
| Atkins Events Ltd | Wholesale & retail | 2025 |
| Aura of YOU Ltd | Health & social care | 2025 |
| AWR Building Services Ltd | Construction | 2021 |
| Axiom Core Ventures Ltd | Financial services | 2025 |
| Aylesbury Court Management Limited | Households | 1981 |
| Azealon Capital Limited | Financial services | 2010 |
| Azealon Limited | Financial services | 2022 |
| B K T Home Designs Ltd | Construction | 2025 |
| B.L.I.S.S. Residential Care Ltd | Other services | 2007 |
| B.L.I.S.S. Support Services II Ltd | Other services | 2026 |
| B.L.I.S.S. Support Services Ltd | Other services | 2018 |
| Baby Steps Nannies Ltd | Administrative & support | 2017 |
| Baby Steps Nurseries Ltd | Administrative & support | 2022 |
| Balasharmi Properties Ltd | Real estate | 2019 |
| Balkan Builders Ltd | Construction | 2013 |
| Banstead Barbers Ltd | Other services | 2025 |
| Banstead Builders Ltd | Construction | 2025 |
| Banstead Consultancy Ltd | Professional & scientific | 2024 |
| Banstead Court Road Management Company Limited | Households | 2014 |
| Banstead Downs Lawn Tennis Club Limited | Arts & recreation | 1999 |
| Banstead Nails 88 Ltd | Other services | 2021 |
| Banstead Physio & Therapies Limited | Other services | 2004 |
| Banstead Pizza Ltd | Hospitality | 2024 |
| Barbers DEN Banstead Ltd | Other services | 2023 |
| Baronsmead Limited | Households | 1996 |
| Bay Tree Technology Ltd | Information & communication | 2024 |
| BDG Privacy Consulting Ltd | Professional & scientific | 2024 |
| Beacon & Nork Freehold Limited | Households | 2014 |
| Beacon Way (Residents) Limited | Households | 1976 |
| Beaconlight Trust | Information & communication | 1995 |
| Bean & Bark Ltd | Hospitality | 2024 |
| Bedazzled Boutique UK Limited | Wholesale & retail | 2021 |
| Beddington Park Ltd | Hospitality | 2025 |
| Beechfield Place (Banstead) RES. Assoc. Limited | Households | 1996 |
| Belvedere Construction (Surrey) Limited | Construction | 2022 |
| Benico Offshore Limited | Administrative & support | 2011 |
| Benmor Limited | Professional & scientific | 2009 |
| Bera Design Limited | Wholesale & retail | 2021 |
| Berken Kitchen Ltd | Hospitality | 2020 |
| Berkley Demolition Group Limited | Extraterritorial | 2015 |
| Berkley Demolition Ltd | Construction | 2014 |
| Berry Construction (UK) Limited | Construction | 2011 |
| Berry Ross Limited | Construction | 2018 |
| Best Practice Project Management Ltd | Construction | 2017 |
| Bhavya Business Solutions Ltd | Information & communication | 2013 |
| Bhavya Properties Ltd | Real estate | 2017 |
| BHD Hair Limited | Administrative & support | 2017 |
| Big Step Property Ltd | Construction | 2024 |
| Bioverse Ltd | Manufacturing | 2022 |
| Bivios Ltd | Professional & scientific | 2024 |
| BIZ Minds (UK) Limited | Information & communication | 2014 |
| Black Horse Pipeline Ltd | Professional & scientific | 2016 |
| Blackgate Controls Ltd | Construction | 2023 |
| Blake & Lockwell Co. Ltd | Professional & scientific | 2023 |
| Blaser Clinic Ltd | Other services | 2025 |
| Blessings Care Home Ltd | Health & social care | 2024 |
| Blooch Autos Ltd | Wholesale & retail | 2023 |
| Blooch Properties Ltd | Real estate | 2022 |
| Blue EYE Investments Ltd | Real estate | 2023 |
| Blueacre Consulting Ltd | Wholesale & retail | 2025 |
| Blueday Holdings Limited | Financial services | 2022 |
| Blueman Plumbing Ltd | Construction | 2022 |
| Blueman Properties Ltd | Real estate | 2022 |
| Bluestone Land & Property Ltd | Construction | 2024 |
| Blushing LA Ltd | Wholesale & retail | 2022 |
| BMT Services Ltd | Manufacturing | 2019 |
| BN Commercial Services Ltd | Professional & scientific | 2021 |
| Body Zest Ltd | Health & social care | 2022 |
| Boileroo Ltd | Construction | 2022 |
| Book the World Limited | Administrative & support | 2022 |
| Bourgeon Limited | Health & social care | 2004 |
| BPH Surveyors Limited | Professional & scientific | 2020 |
| BPP Construction Ltd | Construction | 2022 |
| Braines Electrical Ltd | Construction | 2016 |