| 12 Finborough Road Management Limited | Households | 1997 |
| 435 Limited | Professional & scientific | 2009 |
| 9 Alpha Solutions Limited | Construction | 2024 |
| 95 Clapham Common North Side Limited | Real estate | 1999 |
| A S Wood Limited | Construction | 2014 |
| A T H Machinery Ltd | Wholesale & retail | 2019 |
| A W Hough Projects Ltd | Construction | 2006 |
| A.F.Monk(Rookley)Limited | Agriculture & fishing | 1960 |
| Abbeydove Limited | Construction | 1987 |
| Abbots Mitre Ltd | Real estate | 2024 |
| Abbotstone Energy Advisory Limited | Professional & scientific | 2021 |
| Ablespan Limited | Wholesale & retail | 2005 |
| Access Care Management Limited | Administrative & support | 2010 |
| Access Care Promotions Limited | Professional & scientific | 2017 |
| Acrc Property Ltd | Real estate | 2024 |
| Adele Mildred Limited | Arts & recreation | 2018 |
| Advagreen Ltd | Extraterritorial | 2022 |
| Advance Energy TL Limited | Mining & quarrying | 2020 |
| Agathos Crew Limited | Transport & logistics | 2025 |
| AI Freight Limited | Transport & logistics | 2025 |
| Air Creative Marketing Limited | Professional & scientific | 2004 |
| AJ Industrial Roofing and Cladding Limited | Construction | 2021 |
| Ajbfa Property Ltd | Real estate | 2025 |
| AKL Automotive Locksmith Ltd | Administrative & support | 2025 |
| Altitude One LP | | 2010 |
| Ampfield Golf Management Limited | Professional & scientific | 2001 |
| ANN Pleshette Murphy Ltd | Other services | 2021 |
| Annissi Ltd | Extraterritorial | 2008 |
| Ants Investments Limited | Real estate | 2024 |
| Apex International Technology & Trading Ltd | Administrative & support | 2019 |
| APM Agriplant LS | Wholesale & retail | 1995 |
| Aqueduct Property Ltd | Real estate | 2023 |
| ARB Asset Management (UK) Ltd | Financial services | 2025 |
| Armstrong Partridge Limited | Real estate | 2016 |
| Army Flying Museum Limited | Arts & recreation | 1987 |
| Army Flying Museum Trading Company Limited | Wholesale & retail | 1987 |
| Artichoke Partners Limited | Administrative & support | 2011 |
| Artizan Digs Ltd | Real estate | 2024 |
| ARX Partners Limited | Information & communication | 2016 |
| Ascension Venture Partners Limited | Professional & scientific | 2024 |
| Astonleigh Studio Limited | Professional & scientific | 2017 |
| Atle Property Care Ltd | Administrative & support | 2023 |
| Aurum Consultants Limited | Professional & scientific | 2026 |
| AWG Contracting Limited | Construction | 2006 |
| Axion Logistics Ltd | Transport & logistics | 2025 |
| Axlen Limited | Construction | 2022 |
| Bark 'N' Bound Ltd | Other services | 2023 |
| Bark 'N' Brush Ltd | Administrative & support | 2023 |
| Base Health Ltd | Other services | 2025 |
| BE Embodied Ltd | Health & social care | 2021 |
| Beckley Limited | Administrative & support | 2002 |
| Becs Baker Interiors Limited | Professional & scientific | 2022 |
| Bell Street Limited | Real estate | 2017 |
| BID on My Car Limited | Wholesale & retail | 2011 |
| Bioplex Limited | Professional & scientific | 1998 |
| BIT of Extra DOE Limited | Extraterritorial | 2024 |
| BIT of Extra Dough Limited | Extraterritorial | 2024 |
| Black Rock Grill Ltd | Wholesale & retail | 2005 |
| Black Rock Sands Management Company Limited | Households | 2008 |
| Blackawton Limited | Real estate | 2019 |
| Blake and White Ltd | Extraterritorial | 2020 |
| Bobo & Rose Limited | Professional & scientific | 2024 |
| Bodyshop Direct Ltd | Wholesale & retail | 2012 |
| Boluga Limited | Information & communication | 2011 |
| Bond Williams Ltd | Administrative & support | 2004 |
| Bookme Ltd | Administrative & support | 2016 |
| Boot Fishing Limited | Agriculture & fishing | 2000 |
| Bossington Estates Limited | Real estate | 2013 |
| Bossington Estates Management Ltd | Extraterritorial | 2011 |
| Bossington Investments Limited | Real estate | 2004 |
| Bossington Limited | Real estate | 2013 |
| Bossington Portfolio Managers Limited | Real estate | 2005 |
| Bretmand Consulting Ltd | Information & communication | 2020 |
| Brian Pike Packaging Limited | Manufacturing | 2004 |
| Brio Fibre Solutions Ltd | Manufacturing | 2026 |
| Broadway (Westergate) Limited | Construction | 2022 |
| Broadway Hants Limited | Construction | 2021 |
| Broadway Homes Group Limited | Construction | 2021 |
| Brough Ltd | Real estate | 2023 |
| Broughton PUB Company Limited | Hospitality | 2025 |
| Browni Points Ltd | Wholesale & retail | 2015 |
| Brush & Banter Co. Ltd | Construction | 2025 |
| Bryant & Co Limited | Professional & scientific | 2011 |
| BTB Asia Ltd. | Administrative & support | 2016 |
| Bubul Ltd | Professional & scientific | 2017 |
| Buccal Development Ltd | Extraterritorial | 2007 |
| Buccal Distribution Ltd | Professional & scientific | 2007 |
| Buchannan Events Limited | Hospitality | 2003 |
| Burlington 2021 Limited | Financial services | 2021 |
| Business Analysis Ltd. | Information & communication | 1978 |
| Busk Brickwork Ltd | Construction | 2024 |
| C Barlow Roofing Ltd | Construction | 2017 |
| C. Smart Agricultural Services Limited | Extraterritorial | 1998 |
| C.B.Morgan (Farmers King's Somborne) Limited | Agriculture & fishing | 1961 |
| Caley's of Norwich Limited | Manufacturing | 1995 |
| Camper Dreamin' Ltd | Manufacturing | 2021 |
| Capital EPR Freehold Limited | Real estate | 2006 |
| Cardonnel Limited | Real estate | 2020 |
| Carlton Civil Engineering (Holdings) Limited | Financial services | 2013 |
| Catherston Stud LLP | | 2026 |