| A. Pugh Electrical Solutions Ltd | Construction | 2014 |
| A. T. Site Services Ltd. | Construction | 2005 |
| A.Blundell (Jewel Bearings) Limited | Professional & scientific | 1953 |
| A.E. Russell (Insurances) Limited | Financial services | 1961 |
| A.E.S.(Uk) Limited | Administrative & support | 2009 |
| A.G.G Events Planning Limited | Hospitality | 2024 |
| A.G.G Lettings & Property Management Ltd | Real estate | 2025 |
| A.G.G Recruitment Agency Ltd | Administrative & support | 2024 |
| A.G.G's World Limited | Hospitality | 2012 |
| A.G.G. (Coventry) Limited | Wholesale & retail | 1999 |
| A.J. Lloyd Funeral Directors Limited | Other services | 2006 |
| A.K.Ashhh Ltd | Arts & recreation | 2023 |
| A.K.F. Tooling and Moulds Limited | Manufacturing | 1997 |
| A.L.S. Logistic Ltd | Transport & logistics | 2019 |
| A.M.Maramba Ltd | Health & social care | 2012 |
| A.N.S. Maintenance Limited | Construction | 2000 |
| A.P. V-Tech Ltd | Wholesale & retail | 2026 |
| A.R. Day Limited | Real estate | 1954 |
| A.R. Rural Services Ltd | Agriculture & fishing | 2024 |
| A.R.T Nail Academy Ltd | Education | 2025 |
| A.S. Limited | Wholesale & retail | 2002 |
| A.S.K Associates Ltd | Real estate | 2022 |
| A.Wojtkowiak Ltd | Construction | 2018 |
| A1 (COV) Limited | Real estate | 2006 |
| A1 Best One Ltd | Wholesale & retail | 2016 |
| A1 Brickwork (Wolverhampton) Limited | Construction | 2019 |
| A1 Builder Services Ltd | Construction | 2026 |
| A1 Exhibitions Ltd | Administrative & support | 2022 |
| A1 GAS Force Installations Limited | Construction | 2012 |
| A1 GAS Force Limited | Construction | 2008 |
| A1 GAS Force Maintenance Ltd | Construction | 2012 |
| A1 GAS Solutions Limited | Construction | 2011 |
| A1 Medical Ltd | Wholesale & retail | 2023 |
| A1 Properties (Midlands) Ltd | Hospitality | 2019 |
| A1 Shipping Ltd | Transport & logistics | 2020 |
| A1 Spa Taxis Ltd | Transport & logistics | 2013 |
| A1 Taxis Coventry Ltd | Transport & logistics | 2021 |
| A1 Tyres and Exhausts Ltd. | Wholesale & retail | 2011 |
| A1 Ways Ltd | Transport & logistics | 2026 |
| A1B2C3 Consulting Limited | Extraterritorial | 2005 |
| A1B2C3 IT Limited | Extraterritorial | 2005 |
| A1B2C3 Solutions Limited | Extraterritorial | 2013 |
| A1CARE4U Ltd | Hospitality | 2026 |
| A1HOME4U Ltd | Construction | 2015 |
| A1PLACE4U Limited | Real estate | 2016 |
| A2A Autos Limited | Wholesale & retail | 2025 |
| A2B Chauffeurs Ltd | Transport & logistics | 2022 |
| A2B Swift Ltd | Transport & logistics | 2022 |
| A2U Limited | Construction | 2019 |
| A2Z London Ltd | Wholesale & retail | 2023 |
| A2Z Turkish Ltd | Hospitality | 2021 |
| A38 Motor Company Ltd | Wholesale & retail | 2018 |
| A4 Property Group Ltd | Hospitality | 2025 |
| A5 DE1 Ltd | Hospitality | 2022 |
| A5 NG1 Ltd | Hospitality | 2022 |
| A9 Leasing LLP | | 2020 |
| AA Assets Holding Ltd | Financial services | 2025 |
| AA CC SS Ltd | Construction | 2026 |
| AA Consulting Ltd | Information & communication | 2024 |
| AA Design Studio Limited | Professional & scientific | 2025 |
| AA DUA Ltd | Wholesale & retail | 2022 |
| AA DUA Property Ltd | Real estate | 2025 |
| AA Journey Ltd | Real estate | 2024 |
| AA Nest Ltd | Real estate | 2023 |
| AA Properties (Coventry) Limited | Real estate | 2016 |
| AA Properties Investment Limited | Extraterritorial | 2022 |
| AA Property Cleaning Ltd | Construction | 2026 |
| AA Property Developers Ltd | Real estate | 2024 |
| AA Surface Solutions Ltd | Professional & scientific | 2023 |
| AA Warehousing & Fulfilment Ltd | Transport & logistics | 2026 |
| AAA & Co (UK) Ltd | Extraterritorial | 2017 |
| AAA & Co Properties Ltd | Real estate | 2020 |
| AAA & Qazi Estates Ltd | Real estate | 2022 |
| AAA Accountants Limited | Professional & scientific | 2016 |
| AAA Education Ltd | Education | 2025 |
| AAA Partners Ltd | Wholesale & retail | 2017 |
| AAA Qazi Ltd | Wholesale & retail | 2025 |
| AAA Supermarket Private Limited | Wholesale & retail | 2025 |
| AAA Trading Enterprises Ltd | Wholesale & retail | 2019 |
| AAB4U Ltd | Transport & logistics | 2013 |
| Aada the Store Ltd | Wholesale & retail | 2025 |
| Aadhiya Trading Ltd | Wholesale & retail | 2025 |
| Aadhyamnexus Ltd | Wholesale & retail | 2025 |
| Aadithakanthanproperties Limited | Real estate | 2026 |
| Aadra KA Daabra Ltd | Wholesale & retail | 2025 |
| AAE Management Ltd | Extraterritorial | 2016 |
| AAF Trading Ltd | Wholesale & retail | 2025 |
| AAG Sandhu Roofing Limited | Construction | 2024 |
| Aagio Company Limited | Water & waste | 2026 |
| Aahs Properties Limited | Households | 2023 |
| AAI Sports Limited | Arts & recreation | 1999 |
| Aaif Trends Limited | Wholesale & retail | 2025 |
| Aaisha Limited | Real estate | 2015 |
| Aaji Projects Ltd | Professional & scientific | 2021 |
| Aajj Ltd | Wholesale & retail | 2023 |
| Aake Green Ltd | Professional & scientific | 2018 |
| Aaliya Overseas Ltd | Administrative & support | 2025 |
| Aaliyah Locum Services Ltd | Health & social care | 2011 |
| AAM Door Window Glazing Limited | Construction | 2024 |
| AAM Insulation UK Limited | Construction | 2024 |