| A M Convenience Limited | Birmingham | 2015 |
| A M Driveways (N/W) Limited | Dalton In Furness | 2021 |
| A M Driveways and Landscaping Ltd | Dalton In Furness | 2024 |
| A M Environ Ltd | London | 2017 |
| A M Facilities Limited | London | 2010 |
| A M Flights & Holidays Ltd | London | 2015 |
| A M G Trenowath Marquee Company Limited | Huntingdon | 1992 |
| A M Gardening Services (Yorks) Ltd | Leeds | 2017 |
| A M Global Research Limited | Bessborough Road Harrow | 1999 |
| A M Global Security Solutions Limited | Wembley | 2022 |
| A M Hall Limited | Ashbourne | 1999 |
| A M Hall Management Limited | Grangemouth | 2009 |
| A M Highland Services Ltd | Tain | 2014 |
| A M J Billings Limited | Derby | 2012 |
| A M Landscapes Limited | Holmfirth | 2014 |
| A M Lodhia Limited | Leicester | 2013 |
| A M M Aengineering Limited | Stockport | 2016 |
| A M Maids Limited | Horsham | 2012 |
| A M Maintenance Services Limited | Glasgow | 2022 |
| A M Mini Skips Ltd | Crewe | 2017 |
| A M Planned Maintenance Limited | Woodford Green | 2003 |
| A M Plant Services Limited | Church Stretton | 2011 |
| A M POW Marine Services Ltd | Dumfries | 2022 |
| A M R Studio Limited | London | 2016 |
| A M Recovery Ltd | London | 2026 |
| A M S Composite Cylinders Limited | York | 2016 |
| A M S Plant Hire Limited | Manchester | 1999 |
| A M S Training Ltd | Gillingham | 2012 |
| A M Skips (Yorkshire) Limited | Driffield | 2006 |
| A M Smith Construction Limited | Hope Valley | 2009 |
| A M Structural Design Ltd | Ashton-Under-Lyne | 2011 |
| A M Techno Limited | London | 2018 |
| A M Total Business Solutions Limited | London | 2011 |
| A M Tree Services (North West) Limited | Hyde | 2013 |
| A MAC Enterprises Limited | Kington | 2013 |
| A Macreadie Window Cleaning Ltd | Rotherham | 2023 |
| A Maid for ALL Commercial Cleaning Ltd | Aylesbury | 2023 |
| A Main Event Ltd | Dartford | 2022 |
| A MAN About a Dog Limited | London | 2013 |
| A Marketing Limited | London | 2017 |
| A Marshall Consultancy Limited | Marlborough | 2019 |
| A Martindale & Co Ltd | Seven Kings | 2011 |
| A Matter of Security Group Limited | Witham | 2019 |
| A Mawejje Limited | Carshalton | 2016 |
| A MAY Consultancy Services Limited | Whitstable | 2023 |
| A Mcandrew Limited | Nottingham | 2005 |
| A Mcarthur Associates Ltd | Paisley | 2009 |
| A Mcgahan Services Limited | Carlisle | 2019 |
| A Mcgillivray Hire Limited | Broxburn | 2022 |
| A Mcgregor Limited | Aberdeen | 2012 |
| A Mckeon Maintenance Limited | Redditch | 2023 |
| A Mcmillan Group Limited | London | 2025 |
| A Mean Clean Ltd | Ashford | 2025 |
| A Mech B Limited | Uttoxeter | 2010 |
| A Medical Services Ltd | Southall | 2016 |
| A Medida Limited | London | 2009 |
| A Messing Co Ltd | London | 2009 |
| A Million and One Limited | Bristol | 2009 |
| A Million Events Ltd | Airdrie | 2019 |
| A Million Miles Ltd | Birchington | 2015 |
| A Mind 4 Adventure Limited | Bridgwater | 2010 |
| A Mind for Travel Ltd | Horbury | 2024 |
| A Mindtech Ltd | London | 2024 |
| A Mizera Ltd | London | 2016 |
| A Mohan Limited | Gateshead | 2004 |
| A Moore Landscapes Limited | Telford | 2002 |
| A Mossop Engineering & Agricultural Services Limited | Askam-In-Furness | 2009 |
| A Mountford Ltd | Spilsby | 2019 |
| A Munro Project Cost Engineering Limited | Warrington | 2014 |
| A Must Limited | Highbury | 2012 |
| A N 1 Consulting Limited | London | 2018 |
| A N B Reporting Services Ltd | Braintree | 2018 |
| A N Cleaning Services Limited | Burton-On-Trent | 2025 |
| A N E Tree Services Ltd | Gainsborough | 2026 |
| A N Ejaife Limited | Sidcup | 2019 |
| A N Escapes Ltd | Bury St. Edmunds | 2025 |
| A N Tours Ltd | London | 2021 |
| A N Z Associates Limited | London | 2005 |
| A Neta Ltd | London | 2023 |
| A New Beginning Properties Ltd | Chichester | 2024 |
| A New Day Festival Limited | Farnborough | 2015 |
| A New ERA Limited | Sunderland | 2023 |
| A New Found Freedom Limited | Ticehurst | 2011 |
| A Newson Services Ltd | Gillingham | 2019 |
| A Nicoll & SON Limited | Gainsborough | 1999 |
| A Night to Remember Events Ltd | London | 2025 |
| A Northerly Brewing Ltd | Helmsdale | 2016 |
| A NUE Way Ltd | Maidenhead | 2021 |
| A O Cleaners Ltd | Croydon | 2025 |
| A O Global Concepts Ltd | Glasgow | 2018 |
| A O H Personnel Ltd | Fakenham | 2010 |
| A O Lynch Ltd | Sheffield | 2020 |
| A O Maintenance Limited | Grays | 2017 |
| A O'Connor Cleaning Services Limited | Margate | 2023 |
| A O'Halloran Ltd | Halifax | 2019 |
| A Oaten (Plant Hire) Limited | Wellington | 2003 |
| A Olive Limited | Wellingborough | 2022 |
| A One Garden Contractors Limited | Slough | 2007 |
| A One Home Improvements (South West) Limited | Swansea | 2011 |
| A One Insurance Services (Bmth) Limited | Ferndown | 1997 |