| Andean Aviation Holdings Limited | London | 2019 |
| Andean Social Infrastructure (NO. 1) Limited | London | 2019 |
| Andeburg Ltd | Swansea | 2023 |
| Andeen Holdings Ltd | London | 2022 |
| Andel Holdings Limited | Huddersfield | 2023 |
| Andellie Ltd | Leeds | 2020 |
| Ander Financial Services Limited | Swansea | 2017 |
| Anderby Group Limited | Manchester | 2025 |
| Anderhar Ltd | London | 2020 |
| Anders Bayley Scott Ltd | Brighton | 2011 |
| Anders Holding Company Limited | Thame | 2024 |
| Anderselite Holdings Ltd | Salford | 2016 |
| Andersen Wood Holdings Limited | Leicester | 2022 |
| Anderski Holdings Ltd | Morecambe | 2026 |
| Anderson & Anderson Family Holdings Ltd | Witney | 2026 |
| Anderson & Co (Holdings) Limited | Blackpool | 2008 |
| Anderson & Co (Insurance Brokers) Limited | Blackpool | 2004 |
| Anderson & Cooper Holdings Limited | Peterborough | 2017 |
| Anderson & Hamilton Limited | Oxford | 2017 |
| Anderson & Sheppard Holdings Limited | London | 2025 |
| Anderson Acoustics Holdings Limited | London | 2012 |
| Anderson Acquisitions Ltd | London | 2025 |
| Anderson Advisory Ltd | St. Andrews | 2023 |
| Anderson Brookes Business Finance Ltd | Chorley | 2019 |
| Anderson Brookes Financial Services Ltd | Adlington | 2013 |
| Anderson Brookes Holdings Ltd | Chorley | 2024 |
| Anderson Brookes Ltd | Chorley | 2001 |
| Anderson Brown (Whitby) Ltd | North Yorkshire | 2001 |
| Anderson Capital Investments Limited | Grimsby | 2023 |
| Anderson Capital Limited | Grimsby | 2018 |
| Anderson Development Group Limited | Chelmsford | 2023 |
| Anderson Dixon Properties Limited | Stafford | 2016 |
| Anderson Equity Holdings Limited | Witney | 2026 |
| Anderson Family Holdings Limited | Harrogate | 2025 |
| Anderson Financial Planning Ltd | Plymouth | 2010 |
| Anderson Green Holdings Ltd | Nottingham | 2015 |
| Anderson Group of Companies Ltd | Shrewsbury | 2016 |
| Anderson Harris Limited | London | 2011 |
| Anderson Incorporation Ltd | Rochford | 2023 |
| Anderson King Limited | Hook | 1998 |
| Anderson Lloyd International Ltd | Newquay | 2019 |
| Anderson Mathew Estate Planning Limited | Clydebank | 2020 |
| Anderson Mortgages Ltd | Bristol | 2015 |
| Anderson ORR Group Limited | Witney | 2018 |
| Anderson Phillips Legal Services Ltd | Rochester | 2014 |
| Anderson Pomeroy Limited | Glasgow | 2024 |
| Anderson Quantrend Limited | Upminster | 1995 |
| Anderson Reed Financial Services Ltd | Southampton | 2021 |
| Anderson Reed Specialist Finance Ltd | Southampton | 2023 |
| Anderson Ross Financial Services Ltd | London | 1998 |
| Anderson Ross Group Limited | London | 2002 |
| Anderson Scott Ltd | Bromley | 2014 |
| Anderson Services Ltd | Leven | 2025 |
| Anderson Sinclair Group Ltd | Loughton | 2023 |
| Anderson Smith Group Ltd | Kinross | 2020 |
| Anderson Stanley Services Ltd | Pontypridd | 2016 |
| Anderson UK Holdings Limited | Cheltenham | 2019 |
| Anderson Wealth Advice Limited | Cheltenham | 2015 |
| Anderson Wealth Management Ltd | Marlborough | 2012 |
| Anderson Wealth Planning Ltd. | Newtownards | 2013 |
| Anderson-Dixon Limited | Stafford | 2014 |
| Andersons Valuation and Appraisal Limited | Dalry | 2025 |
| Anderton & Associates Financial Planning Limited | Burscough | 2020 |
| Anderton & Kitchen (Holdings) Limited | Leyland | 2023 |
| Anderton Financial Planning Ltd | Darwen | 2017 |
| Anderton House Ltd | Reigate | 2023 |
| Anderwise Limited | Milton Keynes | 2024 |
| Andes and Baltic Holdings Limited | Leamington Spa | 2025 |
| Andeska Holding Ltd | London | 2026 |
| Andile Holding Limited | Winchester | 2021 |
| Andjo Derivatives Ltd | Ingatestone | 2001 |
| Andlor Ltd | Kinross | 2013 |
| Andlorn Investments Ltd | Redditch | 2026 |
| Andofam Holdings Limited | Chesterfield | 2024 |
| Andolite Daventry Limited | Daventry | 2026 |
| Andolls Group Limited | Ibstock | 2025 |
| Andor Holdco Limited | London | 2022 |
| Andor Holding Group Ltd | Glenrothes | 2018 |
| Andorinha Holdings Limited | Broxburn | 2025 |
| Andorman (UK) Limited | Grantham | 2014 |
| Andott Holdings Ltd | London | 2022 |
| Andover Financial Planning Ltd | Bedford | 2001 |
| Andover Holdings Ltd | Leicester | 2025 |
| Andover Road (NO.1) Limited | London | 2009 |
| Andrassy & Partners Ltd | Wakefield | 2011 |
| Andrassy Parkin Financial Planning Ltd | Wakefield | 2024 |
| Andrastar Limited | Isleworth | 2007 |
| Andratx Limited | Borehamwood | 2016 |
| Andre DU Plessis Ltd | London | 2017 |
| Andrea Fabian Limited | Wallingont | 2015 |
| Andrea Scott Financial Services Ltd | King'S Lynn | 2018 |
| Andrean Ltd. | London | 2003 |
| Andreas Holdings Limited | London | 2022 |
| Andreas Mortgages Ltd | Tilbury | 2026 |
| Andrena Backhouse Ltd | Preston | 1988 |
| Andrew & Andrew Holdings Limited | Newcastle Upon Tyne | 2025 |
| Andrew & Heather Gillott Limited | Barnsley | 2024 |
| Andrew & Rogers Group Ltd | Kingston Upon Hull | 2022 |
| Andrew Blower Limited | Sutton Coldfield | 2014 |
| Andrew Bough & Associates Limited | Ipswich | 2012 |