| A & G Welding and Erection Ltd | Chichester | 2023 |
| A & G White Limited | Dorking | 2013 |
| A & GE Solutions Limited | London | 2021 |
| A & H Asset Ltd | Barking | 2016 |
| A & H Brothers Ltd | Smethwick | 2017 |
| A & H Builders Ltd | South Yorkshire | 2003 |
| A & H Cable Jointing Limited | | 2007 |
| A & H Ceiling Limited | Carterton | 2017 |
| A & H Commercial Solution Ltd | London | 2026 |
| A & H Construction South East Limited | Chatham | 2025 |
| A & H Energy Engineering & Services Limited | London | 2025 |
| A & H Engineering Services Ltd | London | 2019 |
| A & H Fencing Services Ltd | Doncaster | 2021 |
| A & H Floor Covering Specialists Limited | Dumfries | 2002 |
| A & H Heating Services Limited | London | 2017 |
| A & H Interiors (Scotland) Limited | Greenock | 2016 |
| A & H Joiners Limited | Ayr | 2014 |
| A & H Nicholson Ltd | Kilkeel | 2005 |
| A & H Pannu Constructions Ltd | Wolverhampton | 2018 |
| A & H Plant and Construction Limited | Somerton | 2013 |
| A & H Plumbing & Heating Ltd | Liverpool | 2023 |
| A & H Properties Fauld Ltd | Burton Upon Trent | 2023 |
| A & H Rendering Ltd | Mountain Ash | 2017 |
| A & H Roadmarkings Ltd | Willenhall | 2013 |
| A & H Roofing and Cladding Ltd | Glasgow | 2018 |
| A & H Roofing Services Ltd | Heywood | 2022 |
| A & H Technology Limited | Durham | 2021 |
| A & H Tiling Ltd | Rochdale | 2021 |
| A & H Windows Ltd | Macclesfield | 2017 |
| A & HF Construction Ltd | Whitchurch | 2022 |
| A & I Contractors Ltd | London | 2013 |
| A & I Drylining Ltd | Ilford | 2017 |
| A & I Electrical Services Limited | Birmingham | 2016 |
| A & I Geotechnical Ltd | Greenock | 2016 |
| A & I Groundwork and Brickwork Limited | Manchester | 2010 |
| A & I Home Improvements Ltd | Bradford | 2023 |
| A & I Macfarlane Bricklaying Contractors Ltd | Bedford | 2015 |
| A & I Painting & Decorating Ltd | Slough | 2024 |
| A & I Roofing Ltd | Montrose | 2014 |
| A & J (London) Carpenters Ltd | Gravesend | 2012 |
| A & J (Sussex) Ltd | Worthing | 2021 |
| A & J Bagnall Properties Limited | Burton-On-Trent | 2007 |
| A & J Baker Carpentry Ltd | Frome | 2017 |
| A & J Bartlett Limited | Loughborough | 1986 |
| A & J Barton Tiling Ltd | Altrincham | 2016 |
| A & J Bedford Ltd | Bedford | 2018 |
| A & J Brickwork Limited | Wimborne | 2005 |
| A & J Builders Limited | Berkshire | 2004 |
| A & J Building Services Ltd | Westcliff-On-Sea | 2022 |
| A & J Carpenters Limited | Taunton | 2005 |
| A & J Carpentry Contractors Limited | Staffordshire | 2003 |
| A & J Complete Construction Ltd | Rickmansworth | 2021 |
| A & J Construction (CE) Ltd | Manchester | 2023 |
| A & J Construction (M/Cr) Ltd | Manchester | 2013 |
| A & J Contracting Limited | London | 1990 |
| A & J Contractors Ltd | Wolverhampton | 2023 |
| A & J Corp Ltd | London | 2012 |
| A & J COX Metal Fabrications Ltd | Ilford | 2025 |
| A & J Design & Build Limited | Swadlincote | 2003 |
| A & J Design Limited | Worcester | 2014 |
| A & J Developments Limited | Stockport | 2020 |
| A & J Dwellings Limited | Farnham | 2019 |
| A & J Electrical Contractors Limited | Ossett | 2008 |
| A & J Electrical Installation & Maintenance Limited | Shrewsbury | 2025 |
| A & J Events Management Ltd | Glasgow | 2017 |
| A & J Facades Limited | Willenhall | 2016 |
| A & J Fitting Ltd | Bedford | 2024 |
| A & J Flooring Services Ltd | Mountain Ash | 2019 |
| A & J Forsyth Limited | Aberdeen | 2010 |
| A & J Glenny Ltd | Co. Down | 2005 |
| A & J Gough Limited | Hove | 1970 |
| A & J Griffiths Limited | Exeter | 2006 |
| A & J Groundworks NE Ltd | Co Durham, Bishop Auckland | 2020 |
| A & J Heating & Plumbing Limited | Norwich | 2015 |
| A & J Home Improvements Limited | Chatham | 2012 |
| A & J Homes Limited | | 2008 |
| A & J Houghton Properties Limited | Newport | 2002 |
| A & J House Building Contractors Ltd. | Sevenoaks | 2008 |
| A & J House Leveling & Lifting Limited | Norwich | 2022 |
| A & J Industrial Pipe Services Ltd | Worksop | 2013 |
| A & J Joinery (Leeds) Limited | Leeds | 2006 |
| A & J Keane Construction Ltd | Stanmore | 2009 |
| A & J Kitchens Ltd | Buckingham | 2014 |
| A & J Landscapes (Bristol) Ltd | Bristol | 2003 |
| A & J Lesta Limited | Leicester | 2025 |
| A & J Locke Joiners Limited | Paisley | 1998 |
| A & J Lynn Plumbing & Heating Ltd. | Glasgow | 2013 |
| A & J Mackay Plumbing & Heating Ltd | Wick | 2008 |
| A & J Muirhead Limited | Bromyard | 2025 |
| A & J Painters and Decorators Ltd | Bedford | 2014 |
| A & J Perkins Builders Ltd | Worcester | 2025 |
| A & J Plumbing (Yorkshire) Limited | Scunthorpe | 2014 |
| A & J Plumbing and GAS Limited | Burnley | 2023 |
| A & J Plumbing Services Ltd | Armagh | 2019 |
| A & J Portsmouth Limited | Walsall | 2014 |
| A & J Power Services Limited | Jarrow | 2024 |
| A & J Properties Global Ltd | Greenford | 2024 |
| A & J Property Improvements Ltd | Glasgow | 2025 |
| A & J Punter Limited | Send | 2017 |
| A & J Ralston Limited | Carluke | 2003 |