| Allstyle Building Limited | Whitstable | 2025 |
| Allstyle Door & Gate Services Limited | Birmingham | 2002 |
| Allstyles Fascia, Soffits & Guttering Ltd | Reading | 2025 |
| Allsuns Electrical Limited | Derby | 2007 |
| Allsure Property Solutions Limited | Watford | 2020 |
| Allswell Construction Ltd | London | 2024 |
| Allsworth Carpentry Limited | Crymych | 2013 |
| Allsworth Roofing Limited | Carterton | 2001 |
| Allt Dhealain Ltd | Auchterarder | 2014 |
| Allt MOR Construction Limited | Glasgow | 2022 |
| Allt WEN Development Limited | St. Asaph | 2018 |
| Alltami House Management Ltd | Mold | 2011 |
| Alltask Industrial & Environmental Services Limited | Rochester | 2014 |
| Alltask Limited | Rochester Kent | 1992 |
| Alltask London Ltd | London | 2025 |
| Alltask Plumbing Ltd | London | 2021 |
| Alltask Scaffolding Limited | Rochester | 2014 |
| Alltec Construction Ltd | Glenrothes | 2003 |
| Alltec Electrical Services Limited | Grimsby | 2018 |
| Alltec Energy Ltd | Glenrothes | 2023 |
| Alltec Fibre UK Limited | London | 2018 |
| Alltec Group Ltd | Glenrothes | 2025 |
| Alltec Joiners & Builders Limited | Dalry | 2023 |
| Alltech Construction Ltd | Larkhall | 2017 |
| Alltech Electrical Ltd | Street | 2019 |
| Alltech Electrical Services Limited | Swanley | 2008 |
| Alltech Electrical Systems Ltd | Glasgow | 2022 |
| Alltech HTC Ltd | Wembley | 2015 |
| Alltech Ltd | Wirral | 2021 |
| Alltech Maintenance Services Ltd. | Croydon | 2014 |
| Alltech Roofing Limited | Chelmsford | 2010 |
| Alltech Systems (UK) Ltd | Helston | 2005 |
| Alltek Plastering & Rendering Ltd | Barnsley | 2026 |
| Alltherm Insulations Limited | Mexborough | 2010 |
| Alltile Installations Ltd | Chelmsford | 2016 |
| Alltime Projects Limited | Doncaster | 2002 |
| Alltime Securities Limited | Kent | 1960 |
| Alltimecarpets Limited | Hounslow | 2025 |
| Alltimes Coatings Ltd | Redcliffe Way | 2010 |
| Alltimes Homes Ltd | Redcliffe Way | 2002 |
| Alltimes Investments Limited | Taunton | 2015 |
| Alltimes Products Ltd | Redcliffe Way | 2025 |
| Alltite Metal Roofing Systems Ltd | Lancaster | 1998 |
| Allto Limited | Barnsley | 2018 |
| Alltomation Limited | Harpenden | 2009 |
| Allton Builders Limited | Swadlincote | 2005 |
| Allton-Tech Systems Ltd | Oldham | 2006 |
| Alltra Building Services Ltd | Cranbrook | 2025 |
| Alltrad Roofing Ltd | London | 2024 |
| Alltrade Services Limited | Aylesford | 2018 |
| Alltrades Bespoke Builders Ltd | Leeds | 2019 |
| Alltrades Bolton Limited | Bolton | 2011 |
| Alltrades Builders Ltd | Sittingbourne | 2020 |
| Alltrades Building & Maintenance (Essex) Ltd | Benfleet | 2009 |
| Alltrades Building Services (East Anglia) Limited | Norwich | 2010 |
| Alltrades Commercial Property Services Limited | Rhyl | 2017 |
| Alltrades Group Ltd | Essex | 2019 |
| Alltrades South West Ltd | Torpoint | 2025 |
| Alltradesni Ltd | Londonderry | 2026 |
| Alltradespeople Management Ltd | High Wycombe | 2021 |
| Alltwen Building & Maintenance Limited | Swansea | 2017 |
| Alltype Build Property Maintenance Limited | Twynyrodyn | 2015 |
| Alltype Building Contractors (UK) Limited | Leigh-On-Sea | 2006 |
| Alltype Building Contractors South East Limited | Swanley | 2022 |
| Alltype Fencing Specialists Limited | Langdon Hills | 1995 |
| Alltype Glazing Limited | Carshalton | 2024 |
| Alltype Home Improvements Ltd | Orpington | 2026 |
| Alltype Plumbing & Heating Ltd | Sutton | 2009 |
| Alltype Refurbishments Ltd | Welling | 2025 |
| Alltype Roofing Contractors Limited | Swanley | 2021 |
| Alltype Roofing Supplies Limited | London | 1986 |
| Alltypebuilding Ltd | Erith | 2024 |
| Alltypefixing.Av Ltd | Southsea | 2014 |
| Alltyperoofingandbuildingcontractors Ltd | Wallasey | 2025 |
| Allu Ltd | Bromley | 2024 |
| Alluinstall Limited | Liverpool | 2022 |
| Allukbuilders Ltd | London | 2021 |
| Allulwa Ltd | Morden | 2026 |
| Allum Builders Limited | Brighton | 2008 |
| Allum Building Services Limited | Kent | 2005 |
| Allum Carpentry Ltd. | Ipswich | 2004 |
| Allum Electrical Ltd | Eye | 2002 |
| Allumroll Ltd | Oswestry | 2022 |
| Allums Property Services Ltd | Hungerford | 2019 |
| Allura Services Limited | Slough | 2017 |
| Allure Adornments Ltd | Brighton | 2023 |
| Allure Developments (Darlington) Limited | County Durham | 2018 |
| Allure Property Ltd | Bury St. Edmunds | 2017 |
| ALLURE25 Ltd | Chigwell | 2025 |
| Allushi Builders Ltd | Hampton | 2026 |
| Allushi Drylining Ltd | Hornchurch | 2023 |
| Allux Ltd | Dagenham | 2026 |
| Allview Electrical Limited | Brenchley | 2022 |
| Allvolt Electrical Ltd | Swansea | 2024 |
| Allwalk Limited | Linlithgow | 2018 |
| Allwall Partitions Limited | Londonderry | 2016 |
| Allways Concreting Ltd | Peterborough | 2021 |
| Allways Groundworks and Developments Ltd | Lancs, Manchester | 2022 |
| Allways Paving Limited | Eastcote | 2004 |
| Allways Rigging Ltd | London | 2021 |