| A List Kitchens and Bathrooms Limited | Fareham | 2017 |
| A List Roofing Ltd | Windsor | 2023 |
| A Listed Home Improvements Ltd | Swansea | 2019 |
| A Little BIT of Bread and NO Cheese Ltd | Newton Abbot | 2018 |
| A Little BIT of Day-Light Ltd | Barnet | 2022 |
| A Little Brighter Ltd | Mildenhall | 2026 |
| A Little RAI of Colour Ltd | Poole | 2025 |
| A Lloyd Construction & Conversions Limited | Dudley | 2012 |
| A Lloyd Construction Ltd | Pwllheli | 2020 |
| A Lloyd-Jones & SON Limited | Retford | 2010 |
| A Logan Solutions Limited | Craigavon | 2021 |
| A London Flooring Company Limited | London | 2019 |
| A London Limited | Lytham St. Annes | 2013 |
| A Lowe Builders Limited | Great Yarmouth | 2009 |
| A Luxury Developments Ltd | London | 2025 |
| A Lynch Designs Ltd | Mexborough | 2025 |
| A Lynch Plumbing and Heating Limited | Chorley | 2011 |
| A M & B Wilson Ltd | South Shields | 2006 |
| A M 1 Ltd | St Albans | 2019 |
| A M 1 Projects Ltd | Chatham | 2011 |
| A M Access Solutions Limited | South Shields | 2014 |
| A M Addison Flooring Ltd | Dunstable | 2020 |
| A M Alarm Maintenance Ltd | Cambridge | 2005 |
| A M Alexs Ltd | London | 2015 |
| A M B Joinery Ltd | High Wycombe | 2014 |
| A M B Roofing Limited | Burton On Trent | 2016 |
| A M Bars (Yorkshire) Ltd | York | 2021 |
| A M Bars Events Ltd | York | 2025 |
| A M Batchelor Builders Limited | Cranleigh | 2013 |
| A M Bathrooms & Kitchens Ltd | Norwich | 2022 |
| A M Bower Building Contractors Ltd | Seaford | 2016 |
| A M Bower Kitchens, Plumbing & Heating Ltd | Eastbourne | 2023 |
| A M Bridge Property Services Ltd | Tenbury Wells | 2001 |
| A M Builders IW Ltd | Newport | 2015 |
| A M Building & Construction Limited | Lincoln | 2008 |
| A M Building & Consultancy Limited | Lancashire | 2003 |
| A M C Groundworks Limited | Nottingham | 1997 |
| A M C Scaffolding Services Limited | Gateshead | 2025 |
| A M Carpentry Ltd | Blandford Forum | 2015 |
| A M Carpets and Flooring Ltd | Blackburn | 2021 |
| A M Charles Construction Ltd | Leicestershire | 2019 |
| A M Commissioning Limited | Billingham | 2011 |
| A M Construction 1 Ltd | Cardiff | 2011 |
| A M COX Builders Limited | Rochford | 2018 |
| A M D Contractors Limited | London | 1997 |
| A M D Electrical Services Limited | Wolverhampton | 2015 |
| A M D Flooring Ltd | Chatham | 2021 |
| A M D Holdings (UK) Limited | London | 2012 |
| A M D Property Limited | Essex | 2002 |
| A M D Property Solutions Limited | London | 2011 |
| A M Daglish Electrical Limited | Chippenham | 2019 |
| A M Design & Development Limited | London | 2024 |
| A M Design and Construction Limited | Tunbridge Wells | 2002 |
| A M Developments (SW) Ltd | Ringwood | 2020 |
| A M Developments MK Ltd | Milton Keynes | 2017 |
| A M Domestic Constructions Ltd | Stanmore | 2023 |
| A M Domestic Services Limited | Taunton | 2011 |
| A M Donnelly Electrical Contractor Limited | Sturminster Newton | 2002 |
| A M Dunbar Electrical Contractors Limited | Brora | 2012 |
| A M Edwards Building Services Limited | Nottingham | 2000 |
| A M Electrical & Plumbing Services Ltd | Worcester Park | 2023 |
| A M Electrical (Grimsby) Limited | Grimsby | 2020 |
| A M Electrical and Property Services Limited | Bristol | 2022 |
| A M Electrical Installations Limited | Halesowen | 2016 |
| A M Electrical Limited | Barnet | 2002 |
| A M Electrical Services (NE) Ltd | Houghton Le Spring | 2025 |
| A M Electrical Services (Newmarket) Ltd | Newmarket | 2003 |
| A M Electrical Solutions Ltd | Luton | 2022 |
| A M Evans & Co Ltd | Swansea | 2014 |
| A M Evans Engineering Ltd | Wrexham | 2026 |
| A M F Building Solutions Ltd | Redditch | 2013 |
| A M Faithfull & Sons (Construction) Limited | Bembridge | 2009 |
| A M Fisher Electrical Contractors Limited | Wisbech | 2004 |
| A M Flooring Services Limited | Billericay | 2008 |
| A M Forster Builders Limited | Warwick | 2014 |
| A M Furniture Ltd | Hemel Hempstead | 2017 |
| A M G Carpentry Limited | Norwich | 2007 |
| A M G Plumbing Limited | London | 2002 |
| A M GAS and Plumbing Services Ltd | Nottingham | 2021 |
| A M Gilhome Joinery and Building Limited | Leeds | 2009 |
| A M Glazing & Maintenance Ltd | Burgess Hill | 2024 |
| A M H Property Services Ltd | Hull | 2018 |
| A M Hardy Electrical Ltd | Hull | 2014 |
| A M Hayes Construction Limited | Dover | 2008 |
| A M Highways Consultancy & Joinery Ltd | Nottingham | 2020 |
| A M Howton Ltd | Bournemouth | 2021 |
| A M Installations (UK) Ltd | Solihull | 2013 |
| A M Insulation & Sons Limited | Derby | 2009 |
| A M Irvine Slating Ltd. | Peterhead | 2003 |
| A M J Carpentry & Joinery Limited | South Wales | 2002 |
| A M Johansson Ltd | Redcar | 2026 |
| A M Joiners East Limited | Dundee | 2014 |
| A M Joiners Ltd | High Peak | 2003 |
| A M Joinery & Maintenance Limited | Liverpool | 2014 |
| A M Jones Property Ltd | Edinburgh | 2025 |
| A M K Fence-In Limited | Sheffield | 1981 |
| A M K Inspection Services Ltd | Beds | 1998 |
| A M K Surfacing and Civils Limited | Sheffield | 2025 |
| A M K Windows Limited | Huddersfield | 2008 |
| A M King & Sons Ltd | Kingsbridge | 2018 |