| Alan Mcdonald Ltd | Wellington | 2014 |
| Alan Mcdowell Ltd | | 2007 |
| Alan Mcgaughey Ltd | Barrow-In-Furness | 2023 |
| Alan Mcguiness Joinery Ltd | Glasgow | 2017 |
| Alan Mcintee (Group) Ltd | Dundee | 2019 |
| Alan Mcintee Limited | Dundee | 2023 |
| Alan Mearns Electrical Limited | Westhill | 2003 |
| Alan Melville Limited | Glasgow | 2002 |
| Alan Miles Building and Landscaping Ltd | Stafford | 2020 |
| Alan Miles Property Management Limited | Bristol | 2013 |
| Alan Miller Construction Consultants Ltd | Earlston | 2019 |
| Alan Milne Roofing Limited | By Montrose | 2003 |
| Alan Mitchell Electrical Ltd | Croydon | 2018 |
| Alan Mitchell Plasterers Limited | King'S Lynn | 2012 |
| Alan Moreland Brickwork Limited | Leven | 2018 |
| Alan Morgan Electrical Services Limited | West Malling | 2002 |
| Alan Morris Contract Services Ltd | Nottingham | 2025 |
| Alan Moxham Limited | Dorset | 2008 |
| Alan Mudd Construction Ltd | Skipton | 2013 |
| Alan Murphy Consulting Ltd | Bangor | 2014 |
| Alan Napier Ltd. | Inverurie | 2010 |
| Alan Neale Plumbing Services Limited | Wickford | 2011 |
| Alan O'Malley Ltd | Darwen | 2018 |
| Alan ORR Plumbing Ltd | Glasgow | 2014 |
| Alan Osuoha Limited | Billericay | 2013 |
| Alan Overton Builders Limited | Woking | 2021 |
| Alan Oxley Builders Limited | Stanley | 2003 |
| Alan Peel Decorators Limited | Harrogate | 2003 |
| Alan Perry Limited | Stafford | 2003 |
| Alan Phillips Associates Ltd | London | 2021 |
| Alan Powell Electrical Contractors Limited | Shrewsbury | 2002 |
| Alan Property Limited | Liverpool | 2025 |
| Alan R Drylining Ltd | Newcastle Upon Tyne | 2022 |
| Alan Rance Limited | Coltishall | 2006 |
| Alan Rawlinson Carpentry Services Ltd | Liphook | 2005 |
| Alan Reid Joinery Services Limited | Aberdeen | 2006 |
| Alan Reynolds Decorators Limited | Swindon | 2009 |
| Alan Robert Gough Ltd | Chatham | 2011 |
| Alan Roberts & Sons Builders Ltd | Corwen | 2020 |
| Alan Rodgers Limited | Milton Keynes | 1983 |
| Alan Rosemurgey Drystone Walling Ltd | Bishop Auckland | 2025 |
| Alan Rowe Ltd | Newark | 1983 |
| Alan Ruck & SON Limited | West Malling | 2017 |
| Alan S Davies Construction Limited | | 2007 |
| Alan S Dickson (Electrical Contractors) Limited | | 1998 |
| Alan Salisbury Limited | Preston | 2002 |
| Alan Sanderson Ltd | Saddleworth | 2026 |
| Alan Sankey Bricklaying & Stonemason Contractors Ltd | Morpeth | 2019 |
| Alan Sawyer Electrical Ltd | Ashford | 2015 |
| Alan Scaffolding Services Ltd | Enfield | 2025 |
| Alan Shamp Associates Limited | Rotherham | 1988 |
| Alan Shand Joinery Limited | Ellon | 2002 |
| Alan Slater Developments Limited | London | 2007 |
| Alan Sproston Limited | Manchester | 2003 |
| Alan Staley Building Contractors Ltd | Loughborough | 2014 |
| Alan Stewart Limited | Morpeth | 2007 |
| Alan Strike Developments Ltd | Leeds | 2018 |
| Alan Stuart (Builders) Ltd | Peterhead | 2013 |
| Alan Symons Decorating Limited | Cornwall | 2007 |
| Alan Tarling Electrical Limited | Hereford | 2005 |
| Alan the GAS MAN Limited | Horsham | 2026 |
| Alan Thompson (Drylining) Limited | Kirknewton | 2003 |
| Alan Thompson Builder Ltd | Morpeth | 2021 |
| Alan Thomson Contracts Limited | Glasgow | 2001 |
| Alan Thomson Fencing Ltd | Berwickshire | 2007 |
| Alan Thurley Roofing Contractors Limited | Blackpool | 2004 |
| Alan Todd & SON Limited | Exmouth | 2004 |
| Alan Townley Bricklaying Limited | Weston-Super-Mare | 2005 |
| Alan Tuer Limited | Carlisle | 1979 |
| Alan Usher Limited | Bournemouth | 2008 |
| Alan Walker Associates Ltd | Coventry | 2022 |
| Alan Ward Blinds Limited | Suffolk | 2008 |
| Alan Watershed Consulting Limited | Grays | 2015 |
| Alan Webb Limited | West Midlands | 2005 |
| Alan Weddell Drylining & Plastering Limited | Northampton | 2009 |
| Alan Whalley Builder Limited | Macclesfield | 2003 |
| Alan Whiteford Contracts Limited | Inverurie | 2000 |
| Alan Wilkinson (Building) Ltd | Morecambe | 2017 |
| Alan Wilks Scaffolding Limited | Evesham | 2002 |
| Alan Williams GAS Services Limited | Powys | 2002 |
| Alan Williamson Construction Ltd | Stornoway | 2025 |
| Alan Wood (Plumbing & Heating Contractors) Limited | Barnsley | 1998 |
| Alan Wood Decorations Limited | Ashby De La Zouch | 2007 |
| Alan Wood Limited | Bolton | 2003 |
| Alan Wright & SON Joiners & Builders Limited | Preston | 2002 |
| Alan Yates Electrical Ltd | Swanage | 2022 |
| Alan Young Limited | Derby | 2008 |
| Alan's Carpentry Ltd | Stappleford Abbots | 2013 |
| Alan's Carpets Limited | Huntingdon | 2003 |
| Alan's GAS Services Ltd | Sale | 2011 |
| Alan's Heating Services Ltd | Southminster | 2002 |
| Alan-S Associates Ltd | London | 2011 |
| Alana Concepts Limited | Hertford | 2003 |
| Alana Kitchens Ltd | Poole | 2019 |
| Alana Services Limited | Orpington | 2026 |
| Alanandjo Ltd | London | 2024 |
| Alancca Ltd | Preston | 2025 |
| Alanco Services Ltd | London | 2020 |
| Aland Builders Ltd | Birmingham | 2022 |
| Aland Property Ltd | Bootle | 2021 |