| Amtech Power Solutions Limited | Cheadle Hulme | 2013 |
| Amtech Systems Ltd. | Inverurie | 2003 |
| Amtek Electronic Solutions Ltd | Wimborne | 1999 |
| Amtek Engineering Group Limited | Wimborne | 2003 |
| Amtek Engineering Solutions Ltd | Wimborne | 2000 |
| Amtek Global Limited | Torquay | 1999 |
| Amtek Holdings Limited | Wimborne | 2022 |
| Amtek Limited | Chelmsford | 1988 |
| Amtek Technical Resources Limited | Wimborne | 2003 |
| Amten Limited | London | 2023 |
| Amteq Limited | London | 1996 |
| Amtest Associates Limited | Stanmore | 1992 |
| Amtest UK Ltd. | Maldon | 2020 |
| Amtex Properties Limited | | 1988 |
| Amti Solutions Ltd | Taunton | 2015 |
| Amtion Ltd | Hungerford | 2024 |
| Amtivo Group Limited | West Malling | 2018 |
| Amtivo Health & Safety Limited | West Malling | 2005 |
| Amtoc Limited | Lancing | 2024 |
| Amtol Limited | Chelmsford | 2017 |
| Amtrack Business Management Group Ltd. | Shrewsbury | 2016 |
| Amtrad Consulting Limited | Cheadle | 2019 |
| Amtrade International Limited | London | 2011 |
| Amtrax Limited | Dartford | 1996 |
| Amtri Veritas Limited | Macclesfield | 1994 |
| Amtrust International Limited | London | 1982 |
| AMTS2 Associates Ltd | Dorking | 2025 |
| Amtt Accountancy Ltd | London | 2024 |
| Amty Limited | London | 2015 |
| AMU Accountants Ltd | Enfield | 2026 |
| AMU Medwrite Limited | Hayes | 2025 |
| Amuh Consultancy Limited | Lincoln | 2026 |
| Amui Venture Limited | Isleworth | 2015 |
| Amulet Consulting Limited | Chester | 2015 |
| Amulet Ltd | Cambridge | 2025 |
| Amulet Projects Ltd. | Dundee | 2006 |
| Amullinger Limited | Tunbridge Wells | 2016 |
| Amum Limited | London | 2000 |
| Amunday Electrical Ltd | Sidcup | 2017 |
| Amundson Marketing Ltd | Bournemouth | 2022 |
| Amunity Limited | London | 2025 |
| Amurantis Ltd | Wigan | 2026 |
| Amuse London Ltd | Streatham | 2020 |
| Amutis Wine Advisory Limited | London | 2025 |
| Amuut Ventures Ltd | London | 2026 |
| Amuwa Solutions Limited | Stanmore | 2022 |
| AMV Accounting Limited | Morden | 2016 |
| AMV Bbdo Investments Limited | London | 1983 |
| AMV Bbdo Marketing Ltd | London | 2025 |
| AMV Consulting Limited | Bristol | 2019 |
| AMV Law Limited | Brighton | 2009 |
| AMV Legal Limited | Manchester | 2023 |
| AMV Media Limited | London | 2020 |
| AMV Project Solutions Limited | Farnham | 2024 |
| AMV Promotion and Marketing Ltd | London | 2025 |
| AMV Scotland Limited | Clydebank | 2003 |
| AMV Solutions Ltd | Barnet | 2024 |
| Amva-Iq Ltd | Chalfont St Giles | 2025 |
| Amvar Handling Solutions Limited | Burton Upon Trent | 2008 |
| Amvar Storage & Workplace Solutions Limited | Burton-On-Trent | 2011 |
| Amvee Design Ltd | Wigan | 2023 |
| Amvii Advisory Ltd | London | 2025 |
| Amvsn Consulting Limited | London | 2025 |
| Amvy Digital Limited | Watford | 2020 |
| AMW & Co. Ltd | Slough | 2019 |
| AMW (Realisations) Limited | Manchester | 1953 |
| AMW 21 Consulting Limited | London | 2022 |
| AMW Accounting Ltd | South Shields | 2020 |
| AMW Advisory Services Limited | Mediacityuk | 2021 |
| AMW Ceng Ltd | Scunthorpe | 2022 |
| AMW Consultants Limited | Whitchurch | 2022 |
| AMW Consulting (UK) Ltd | Hemel Hempstead | 2013 |
| AMW Contract Limited | Altrincham | 2017 |
| AMW Design Ltd | Stockton-On-Tees | 2019 |
| AMW ENG Services Ltd | Cleckheaton | 2020 |
| AMW Financial Planning Limited | Leicester | 2020 |
| AMW Financial Services Ltd | Bookham | 2011 |
| AMW Inspection Ltd | Bolton | 2012 |
| AMW Interim Services Limited | Chester | 2012 |
| AMW Legal Services Limited | Buckingham | 2022 |
| AMW Management Solutions Limited | Cheltenham | 2023 |
| AMW Media Ltd | High Wycombe | 2024 |
| AMW Professional Ltd | Hartlepool | 2019 |
| AMW Services (Midlands) Limited | Solihull | 2018 |
| AMW Strategic Consulting Limited | Nottingham | 2026 |
| AMW Supply Chain Ltd | Wigan | 2024 |
| AMW Tax Consultants Ltd | Blackburn | 2024 |
| AMW Technical Services Limited | London | 2024 |
| AMW Training Ltd | Newcastle Upon Tyne | 2024 |
| AMW1810 Consulting Limited | Norwich | 2017 |
| Amwaj Aviation Auditing Limited | Ballymena | 2021 |
| Amwal Ltd | Ashtead | 2022 |
| Amwal Management and Accounting Limited | London | 2026 |
| Amwali Financials Ltd | Kington | 2026 |
| Amway Holdings Limited | Crediton | 2025 |
| Amweb Consulting Ltd | Bedford | 2022 |
| Amweld Limited | Stockport | 2024 |
| Amwell Digital Ltd | Harlow | 2024 |
| Amwell Limited | Altrincham | 2025 |
| Amwell Spring Consulting Limited | Hertford | 2019 |