| Andrew Thompson 1967 Ltd | Norwich | 2024 |
| Andrew Thompson Holdings Limited | Carnforth | 2022 |
| Andrew Tuck Mortgage Advice Ltd | Grays | 2015 |
| Andrew Ward Associates-Accountants Limited | Nottingham | 2020 |
| Andrew Weir Insurance Company Limited | | 1940 |
| Andrew Weir Investment Company Limited | London | 1936 |
| Andrew Weir Pension Trustee Limited | Aylesbury | 2011 |
| Andrew White Holdings Ltd | Durham | 2025 |
| Andrew Whitehouse Associates Limited | Leighton Buzzard | 2012 |
| Andrew Wilkins Holdings Ltd | Chippenham | 2026 |
| Andrew Winstanley Holdings Limited | Bolton | 2021 |
| Andrew Wright Consulting Limited | Nottingham | 2013 |
| Andrew Wright Group Holdings Limited | Irvine | 2025 |
| Andrew Yule Limited | Glasgow | 2010 |
| Andrewcw Limited | Fforestfach | 2014 |
| Andrews Archway Limited | Woodford Green | 2018 |
| Andrews Building Supplies Holdings Limited | Peterborough | 2004 |
| Andrews Capital Group Limited | Croydon | 2026 |
| Andrews Coatings Holdings Ltd | Wolverhampton | 2024 |
| Andrews Family Holdings Limited | Leicester | 2018 |
| Andrews Financial Ltd | Farnborough | 2009 |
| Andrews Group (Tideswell) Limited | Buxton | 2021 |
| Andrews Group Leeds Holdings Ltd | Leeds | 2025 |
| Andrews Group Limited | Belfast | 2015 |
| Andrews Holding Group Limited | Guildford | 2020 |
| Andrews International Risk Services Ltd | Edenbridge | 2025 |
| Andrews Mortgage Solutions Ltd | Bristol | 2022 |
| Andrews Nominees Limited | London | 2017 |
| Andrews Pension Trust Limited | Bristol | 1954 |
| Andrews Private Capital Limited | Coleraine | 2020 |
| Andrews Security Systems Ltd | Bletchley | 2017 |
| Andrews Strategic Ltd | Ipswich | 2026 |
| Andrews Sykes Group PLC | Wednesbury | 1921 |
| Andrews Sykes Hire Saudi Limited | Wednesbury | 2024 |
| Andrews Sykes International Limited | Wednesbury | 1968 |
| Andrews Willis Limited | London | 2012 |
| Andrewsmithco Limited | Northampton | 2018 |
| Andrich Capital Ltd | London | 2023 |
| Andrioli Capital Ltd | London | 2025 |
| Androfertility Limited | Harpenden | 2016 |
| Andromeda Assets Limited | Hitchin | 2020 |
| Andromeda Bidco Limited | London | 2023 |
| Andromeda Capital Management Ltd | Cambridge | 2022 |
| Andromeda Consulting Ltd | Hartfield | 2024 |
| Andromeda Holdco Limited | Warwick | 2024 |
| Andromeda Infrastructure Limited | London | 2023 |
| Andromeda Midco Limited | Warwick | 2024 |
| Andromeda Specialist Finance Ltd | London | 2025 |
| Andromeda Wealth Limited | Sherborne | 2014 |
| Andromeda X Ltd | Middlesbrough | 2025 |
| Andronicas Holdings Limited | Croydon | 2011 |
| Andronovo Holdings Ltd | Stirling | 2026 |
| Andros Holdings 1 Limited | Leyburn | 2026 |
| Andros Holdings 2 Limited | Leyburn | 2026 |
| Andros Holdings Ltd | Exeter | 2026 |
| Andryala Limited | London | 2022 |
| Andsad Trading Ltd | Northampton | 2025 |
| Andshar Limited | Belfast | 2026 |
| Andsley Consultants Limited | London | 1997 |
| Andstrat (NO.385) Limited | Edinburgh | 2013 |
| Andstreymis Limited | London | 2011 |
| Andsue Ltd | Doncaster | 2026 |
| Andtad Ltd | Banbury | 2025 |
| Andtommac Investments Ltd | Oundle | 2021 |
| Anduity Limited | High Wycombe | 2022 |
| Anduki USA Limited | London | 2004 |
| Andumpark Limited | London | 2003 |
| Andurance Services Limited | London | 2012 |
| Andurand Capital Services Limited | London | 2012 |
| Anduril Solutions Limited | Hayes | 2024 |
| Andusia Holdings Limited | Hertford | 2019 |
| Andwis Fire & Security Holdco Limited | London | 2025 |
| Andwis Group Limited | London | 2022 |
| Andy Brown 180 Limited | Glasgow | 2026 |
| Andy Caterer Wealth Management Ltd | Dundee | 2024 |
| Andy Dale Holdings Ltd | Dudley | 2022 |
| Andy Demi Trading Ltd | London | 2021 |
| Andy Downey Consulting Ltd | New Malden | 2013 |
| Andy Flynn Brickworks Holdings Limited | Cannock | 2016 |
| Andy Green Capital Limited | Spalding | 2025 |
| Andy Hall Mortgages Ltd | Mexborough | 2015 |
| Andy Hawkins Services Ltd | Okehampton | 2021 |
| Andy King Financial Consultancy Limited | Bournemouth | 2003 |
| Andy Knell Holdings Limited | Newcastle Upon Tyne | 2021 |
| Andy L W Holdings Limited | Tadworth | 2026 |
| Andy Little Holdings Limited | Maldon | 2026 |
| Andy Loos Holdings Limited | Kidderminster | 2021 |
| Andy Mcrory Consultancy Limited | Northampton | 2010 |
| Andy Neal Ltd | Whitstable | 2024 |
| Andy Oliver Holdings Limited | Exeter | 2023 |
| Andy P Collins Wealth Management Limited | Stockport | 2018 |
| Andy Rooke Financial Consultancy Limited | Bristol | 2009 |
| Andy Talbot Ltd | London | 2025 |
| Andy Wilson Financial Services Ltd | Lincoln | 2011 |
| Andyoeo Group Ltd | London | 2025 |
| Aneevo Ltd | Sunderland | 2023 |
| Anelim UK Limited | London | 2023 |
| Anella Limited | Richmond | 2016 |
| Anemoi Group Ltd | Haywards Heath | 2020 |
| Anemoi Investments Limited | London | 2016 |