| Ambulance Parts Limited | Preston | 2010 |
| Ambylu Ltd | Plymouth | 2020 |
| AMC (NW) Limited | Warrington | 2008 |
| AMC Aerotech Ltd | Ballywalter | 2018 |
| AMC Automotive Solutions Ltd | Stockton On Tees | 2020 |
| AMC Connected Ltd | London | 2026 |
| AMC Decals Limited | Ross-On-Wye | 2018 |
| AMC Design Engineering Ltd | Preston | 2013 |
| AMC Engineering Ltd | Rotherham | 2019 |
| AMC Exhibitions Limited | Cambridge | 2012 |
| AMC Fasteners Ltd | Corby | 2024 |
| AMC Fire & Smoke Limited | Holmfirth | 2022 |
| AMC Geep Limited | Abingdon | 2021 |
| AMC Lift Services Ltd | Hornchurch | 2021 |
| AMC Metalcraft Limited | Norwich | 2022 |
| AMC Minerva Holdings Limited | London | 2023 |
| AMC Newco Limited | London | 2023 |
| AMC Pharma Limited | London | 2011 |
| AMC Precision Coatings Limited | Pontypool | 2002 |
| AMC Projects Ltd | Larkhall | 2018 |
| AMC Rollers Limited | Pontypool | 2001 |
| AMC Screenprint Limited | Springburn | 2007 |
| AMC Trade Frames Limited | Holmfirth | 2022 |
| Amcanu Ltd | Burry Port | 2002 |
| Amcast Limited | Nuneaton | 1991 |
| Amci Sports Limited | Birmingham | 2026 |
| Amci Studio Ltd | London | 2025 |
| Amco Global Ltd | London | 2018 |
| Amco Heating Limited | Bournemouth | 2016 |
| Amcol Minerals Europe Limited | London | 1989 |
| Amcon-Uk Ltd | Knottingley | 2015 |
| Amcor Flexibles Swansea Limited | Swansea | 2000 |
| Amcor Flexibles UK Limited | Bristol | 1993 |
| Amcor Flexibles Winterbourne Limited | Bristol | 1989 |
| Amcor Packaging UK Limited | Bristol | 1946 |
| Amcore Limited | Middlesbrough | 2024 |
| Amcorp Group Ltd | London | 2019 |
| Amcprint Ltd | Liverpool | 2021 |
| Amcrol Limited | Hawarden | 2005 |
| AMD Aircraft Paint and Fabric Ltd | Chelmsford | 2014 |
| AMD Commercial Ltd | Little Baddow | 2016 |
| AMD CTS Ltd | London | 2023 |
| AMD Electric Limited | Mansfield | 2018 |
| AMD Fixers Ltd | London | 2025 |
| AMD Global Limited | Blackburn | 2016 |
| AMD Metal Fabrications Ltd | Bradford | 2024 |
| AMD Products Ltd | Warrington | 2010 |
| AMD Sport Services Ltd | Maldon | 2019 |
| AMD Technik (UK) Limited | Woking | 2008 |
| AMD Welding Ltd | Swansea | 2024 |
| AMD Welding Services Ltd | Llandeilo | 2018 |
| Amdavadi Food Limited | Harrow | 2025 |
| Amdec Industrial Products Limited | Glossop | 1993 |
| Amdega Repairs Ltd | Basingstoke | 2023 |
| Amdf ST Pancras Ltd | London | 2022 |
| Amdro Limited | Caernarfon | 2004 |
| AME (North West) Ltd | Liverpool | 2012 |
| AME Facades Ltd | London | 2024 |
| AME Forklifts Ltd | Kenilworth | 2017 |
| AME Global Limited | Bolton | 2024 |
| AME International (UK) Limited | Alnwick | 2023 |
| Ame-Uk Limited | Ipswich | 2017 |
| Amea Services UK Ltd | Liverpool | 2019 |
| Amech Automotive Ltd | Rotherham | 2025 |
| Ameco Electrical Services Ltd | Smethwick | 2012 |
| Amed 23 Limited | Southsea | 2026 |
| Amed Design & Print Ltd | Mildenhall | 2020 |
| Amee JEE Ltd | Luton | 2021 |
| AMEENS1 Ltd | Newcastle Upon Tyne | 2025 |
| Ameg Limited | Wednesbury | 2022 |
| Amega Sciences Limited | Daventry | 1984 |
| Amega Tech Ltd | Craigavon | 2025 |
| Ameko Limited | London | 2016 |
| Amel Services Limited | Dagenham | 2018 |
| Ameland Limited | Coventry | 2006 |
| Amelec Instruments Limited | Milton Keynes | 2011 |
| Amelec Technical Solutions Limited | Towcester | 2004 |
| Amelfi Limited | Alresford | 2022 |
| Amelia Aerotech Limited | Porthcawl | 2013 |
| Amelia Air Ventilation Ltd | Londonderry | 2021 |
| Amelia Knight (UKM) Limited | Knutsford | 2023 |
| Amelia Knight Limited | Knutsford | 1995 |
| Amelia Powers Limited | London | 2017 |
| Amelia Roxanna Limited | Sevenoaks | 2023 |
| Amelia Zarych Bespoke Ltd. | Eastbourne | 2023 |
| Amelia’S Dessert Ltd | Dudley | 2025 |
| Amelie Rose Gift Co Ltd | Nottingham | 2024 |
| Amelior Consultancy Ltd | Chester | 2019 |
| Amelya Design Ltd | London | 2021 |
| Amen UK Limited | Wolverhampton | 2019 |
| Amenieta ICT Solutions Limited | Thornton Heath | 2011 |
| Amenta Studio Ltd | Mildenhall | 2025 |
| Amentum Enterprise Asset Solutions Limited | Warrington | 1974 |
| Amenuensis Ltd | Cambridge | 2010 |
| Ameoz Group Ltd | Huntingdon | 2017 |
| Amer Sports UK Limited | Camberley | 1992 |
| Amer Sports UK Services Limited | Ayrshire | 1961 |
| Amera Inc Limited | London | 2019 |
| Amercare Limited | Manchester | 1989 |
| Amerex Limited | Llandudno | 1997 |