| Andercourt Farming Limited | Ross-On-Wye | 1990 |
| Anderes Ufer Limited | London | 2001 |
| Anderfanx Limited | Gateshead | 2018 |
| Anderhaus Limited | Glasgow | 2017 |
| Anderhaus Studio Ltd | London | 2023 |
| Anderhouse Limited | London | 1977 |
| Anderida Bay Limited | Eastbourne | 2006 |
| Anderida Investment Management Ltd | Brighton | 2019 |
| Anderitum Consulting Ltd | Battle | 2017 |
| Anderlea Butters Marketing Consultancy Limited | Grimsby | 2023 |
| Anderlex Legal Ltd | Torquay | 2026 |
| Anderman Ceramics Limited | Kidderminster | 2001 |
| Andermann Consulting Ltd | London | 2025 |
| Andermatt Group Limited | London | 2020 |
| Andermei Limited | Wood Norton | 2016 |
| Anders and True Limited | Manchester | 2024 |
| Anders Construction Services Ltd | St. Helens | 2018 |
| Anders Consultants Ltd | London | 2025 |
| Anders DE Wiart Associates Limited | London | 2023 |
| Anders DE Wiart Associates Solutions Ltd | London | 2026 |
| Anders Hagstrom Limited | Guildford | 2020 |
| Anders Modeling Ltd | Woodbridge | 2022 |
| Anders Orrberg Limited | London | 2011 |
| Anders Pink Limited | Hove | 2014 |
| Anders Strandh Consulting Ltd | London | 2018 |
| Anderselite Corporate Trustee Ltd | Salford | 2016 |
| Andersen and RAY Ltd | Derby | 2015 |
| Andersen Associates Ltd | London | 2024 |
| Andersen International Ltd | London | 2018 |
| Andersen Legal Consulting Limited | Selkirk | 2019 |
| Andersen Piquet Limited | Windlesham | 1995 |
| Andersen Relatum Consultant Ltd | Stockport | 2022 |
| Andersen Tax Limited | London | 2025 |
| Andersen Tax Services Limited | London | 2018 |
| Andersen's Kitchen Design Limited | Heysham | 2015 |
| Andersey Associates Limited | London | 2018 |
| Anderson & Co Accountants Ltd | Nottinghamshire | 2006 |
| Anderson & Co Financial Services Limited | Worksop | 2001 |
| Anderson & Co. Accountancy Limited | South Petherton | 2017 |
| Anderson & Edwards Ltd | Edinburgh | 2020 |
| Anderson & Jarvis Engineering Co. Limited | Wallingford | 1960 |
| Anderson & Wyatt Limited | Blackburn | 2012 |
| Anderson (GEO) Ltd | Southampton | 2007 |
| Anderson + Anderson Accountancy Services Ltd | Witney | 2021 |
| Anderson 2082 Limited | Bolton | 2002 |
| Anderson Access Ltd. | Fraserburgh | 2002 |
| Anderson Accountancy Limited | Welwyn | 2000 |
| Anderson Accountancy Scotland Limited | 4/5 Golden Square | 2014 |
| Anderson Accountants Ltd | Harrow | 2025 |
| Anderson Accounting & Documentation Ltd | Glastonbury | 2010 |
| Anderson Accounting Limited | Warminster | 2002 |
| Anderson Accounts Ltd | Hythe | 2017 |
| Anderson Acoustics Limited | London | 2006 |
| Anderson Advertising and Property Marketing Limited | Leeds | 2010 |
| Anderson Advertising Limited | Belfast | 2000 |
| Anderson Advisory Services Limited | Glasgow | 2024 |
| Anderson and Meyrick Limited | Shrewsbury | 2011 |
| Anderson and Prescott Limited | North Leigh Business Park | 2021 |
| Anderson Anderson & Brown Limited | Aberdeen | 2023 |
| Anderson Anderson & Brown Wealth Limited | Aberdeen | 2021 |
| Anderson Architectural Design Ltd | Fareham | 2020 |
| Anderson Architecture Limited | Stroud | 2012 |
| Anderson Associates (Surveying) Limited | Croydon | 2003 |
| Anderson Associates (UK) Limited | Weybridge | 2003 |
| Anderson Automation Consultancy Limited | Warrington | 2016 |
| Anderson Baillie Management Limited | Warrington | 2013 |
| Anderson Ballantine Limited | Biggar | 2008 |
| Anderson Barrowcliff Limited | Stockton-On-Tees | 2024 |
| Anderson Bayne Limited | Edinburgh | 1982 |
| Anderson Beckette Ltd | Glasgow | 2003 |
| Anderson Bell Christie Limited | Glasgow | 2016 |
| Anderson Bern Capital Management Ltd | London | 2019 |
| Anderson Bookkeeping Ltd | Budleigh Salterton | 2024 |
| Anderson Bros. (Prestwick Farm) Limited | Newcastle Upon Tyne | 1984 |
| Anderson Brothers (Elgin) Limited | Elgin | 1979 |
| Anderson Brothers (Shopfitters) Limited | Sunderland | 1958 |
| Anderson Brown Psychology Services Ltd | Edinburgh | 2025 |
| Anderson Browne Solicitors Limited | Bishop'S Stortford | 2010 |
| Anderson Brownlie Limited | | 2004 |
| Anderson Burgess Ltd | Newport Pagnell | 2026 |
| Anderson Business Consultancy Ltd | Glasgow | 2025 |
| Anderson Business Consulting Ltd | Watford | 2021 |
| Anderson Business Development Limited | Airdrie | 2009 |
| Anderson Business Media Limited | Oxford | 2011 |
| Anderson Cellular and Data Components Limited | Northampton | 2004 |
| Anderson Chestnut Holdings Limited | Gainsborough | 2018 |
| Anderson Consultancy (UK) Limited | Buckhurst Hill | 2009 |
| Anderson Consultancy Training Limited | Hyde | 2013 |
| Anderson Consultant Services Limited | Rosewell | 2021 |
| Anderson Consulting Limited | Milton Keynes | 2017 |
| Anderson Consulting Telford Limited | Erdington | 2018 |
| Anderson Creative Limited | Milton Keynes | 2008 |
| Anderson Duff Associates Limited | Peterborough | 2020 |
| Anderson Economics Limited | Treales | 2024 |
| Anderson Ecosse Legal Limited | Inverness | 2023 |
| Anderson Engineering (UK) Ltd | Manchester | 2012 |
| Anderson Engineering Group Ltd | Huddersfield | 2022 |
| Anderson Engineering Solutions Limited | Stoke-On-Trent | 2003 |
| Anderson Environmental Limited | Morpeth | 2015 |
| Anderson FD Solutions Limited | Derby | 2016 |