| A House IS NOT a Home Ltd | Information & communication | 2024 |
| A Howell Consulting Ltd | Professional & scientific | 2025 |
| A Howley Limited | Construction | 2003 |
| A Hub Ltd | Professional & scientific | 2017 |
| A Human Resource Ltd | Administrative & support | 2024 |
| A Hussein Psychology Ltd | Professional & scientific | 2026 |
| A I Akaweze Ltd | Transport & logistics | 2024 |
| A I C (2019) Tour Ltd | Arts & recreation | 2019 |
| A I C Solutions Limited | Wholesale & retail | 2017 |
| A I Desserts Ltd | Hospitality | 2022 |
| A I Heating Ltd | Construction | 2017 |
| A I James & Co Limited | Professional & scientific | 2013 |
| A I L Properties Ltd | Real estate | 2024 |
| A I M Motorsales Ltd | Wholesale & retail | 2024 |
| A I Paradigm Ltd | Other services | 2025 |
| A I S F Traders Ltd | Wholesale & retail | 2026 |
| A I Source Ltd | Administrative & support | 2024 |
| A Inact Ltd | Professional & scientific | 2025 |
| A Infinity a (AIA) Ltd | Professional & scientific | 2011 |
| A Interiors Limited | Construction | 2010 |
| A IS for Architecture Limited | Professional & scientific | 2021 |
| A J Asset Management Limited | Administrative & support | 2007 |
| A J B Autos Ltd | Wholesale & retail | 2021 |
| A J B Hulme Ltd | Real estate | 2026 |
| A J Banks and Associates Limited | Real estate | 1995 |
| A J Barrott Construction Limited | Construction | 2008 |
| A J Bell Construction Ltd | Manufacturing | 2025 |
| A J Bespoke Ltd | Construction | 2021 |
| A J Betteridge Investments Limited | Financial services | 2015 |
| A J Browne Private Office Limited | Professional & scientific | 2016 |
| A J Bull Trading Ltd | Wholesale & retail | 2025 |
| A J Cale Limited | Health & social care | 2006 |
| A J Cars (London) Limited | Wholesale & retail | 2004 |
| A J Chew Civils Ltd | Construction | 2026 |
| A J Cleaning Solutions Ltd | Other services | 2022 |
| A J Consulting Services Limited | Professional & scientific | 2006 |
| A J Contractions Ltd | Construction | 2026 |
| A J Copson Ltd | Information & communication | 2021 |
| A J D Commerce Ltd | Wholesale & retail | 2026 |
| A J Daly Ltd | Health & social care | 2025 |
| A J Development Property Ltd | Real estate | 2017 |
| A J Dunne & Sons Limited | Real estate | 2005 |
| A J G Futures Ltd | Professional & scientific | 2016 |
| A J GAS and Water Limited | Construction | 2015 |
| A J Globalise 21C Limited | Education | 2014 |
| A J Guiste Ltd | Wholesale & retail | 2025 |
| A J Haines Ltd | Information & communication | 2025 |
| A J Hamilton Ltd | Wholesale & retail | 2014 |
| A J Hutton Limited | Administrative & support | 2007 |
| A J Infinity Ltd | Administrative & support | 2023 |
| A J Jones & Co Legal Services Ltd | Professional & scientific | 2022 |
| A J K Productions Limited | Administrative & support | 2012 |
| A J Law 2 Limited | Real estate | 2024 |
| A J Leach Consulting Limited | Other services | 2019 |
| A J London Property Limited | Real estate | 2022 |
| A J Lythgoe Limited | Professional & scientific | 2019 |
| A J Marcus Radiologist Limited | Health & social care | 2011 |
| A J Maritime Holding Limited | Financial services | 2008 |
| A J Maritime Limited | Financial services | 2008 |
| A J Mcdermott Ltd | Construction | 2018 |
| A J Medica Ltd | Health & social care | 2023 |
| A J Mills Ltd | Professional & scientific | 2023 |
| A J Motor Trade Ltd | Wholesale & retail | 2014 |
| A J Moveables Limited | Financial services | 2021 |
| A J N Trustees Limited | Other services | 2016 |
| A J Nicolaou Limited | Health & social care | 2010 |
| A J Noir Consulting Ltd | Other services | 2022 |
| A J O Plumbing and Heating Limited | Construction | 2017 |
| A J Pain Waste Management Ltd | Water & waste | 2006 |
| A J Pro Ltd | Wholesale & retail | 2025 |
| A J Professional Hair Stylist Ltd | Other services | 2025 |
| A J Rogers Developments Ltd | Construction | 2018 |
| A J Smith (Telford) Limited | Construction | 2010 |
| A J Specialist Recruitment Limited | Other services | 2019 |
| A J Surveying Limited | Construction | 2005 |
| A J Tucker & Sons Ltd | Wholesale & retail | 2024 |
| A J Welling Communications Ltd | Information & communication | 2017 |
| A J Wheat Sipp GF2697 Limited | Administrative & support | 2021 |
| A J Whitehead Property Ltd | Real estate | 2025 |
| A J Wright Projects Ltd | Professional & scientific | 2024 |
| A J Y Transport Ltd | Transport & logistics | 2023 |
| A Jackson Solutions Limited | Professional & scientific | 2008 |
| A Jacunska Ltd | Professional & scientific | 2026 |
| A Jamieson Ltd | Information & communication | 2021 |
| A JET Adventure Ltd | Administrative & support | 2025 |
| A Jewellers Boutique Ltd | Real estate | 2022 |
| A JM Master Company Ltd | Wholesale & retail | 2026 |
| A Jolly Consulting Ltd | Professional & scientific | 2016 |
| A Jones Life Ltd | Professional & scientific | 2023 |
| A Jones-Davies Ltd | Professional & scientific | 2025 |
| A Joseph Business Innovations Limited | Professional & scientific | 1994 |
| A Joseph Investments Limited | Real estate | 2003 |
| A Joury Ltd | Real estate | 2017 |
| A Joyce Services Ltd | Manufacturing | 2021 |
| A Joyful Box Ltd | Wholesale & retail | 2025 |
| A Joyful Verse Ltd | Real estate | 2024 |
| A Just Review C.I.C. | Other services | 2024 |
| A K 1 Asset Management Limited | Wholesale & retail | 2014 |
| A K Asset Management Limited | Real estate | 2013 |
| A K Assistance Limited | Construction | 1995 |