| Allround Property Services Ltd | Brighton | 2024 |
| Allround Scaffolding Limited | Farnham | 2020 |
| Allround Traders Limited | Leicester | 2024 |
| ALLROUND365 Ltd | London | 2023 |
| Allroundservice Zeeland BV Ltd | Doncaster | 2024 |
| Allrounduk Building & Construction Ltd | Baldock | 2011 |
| Alls Electrical Limited | East Ham | 2022 |
| Allsafe Electrical Services Limited | Birmingham | 2008 |
| Allsafe Heating and Plumbing Limited | Sutton Coldfield | 2017 |
| Allsafe Scaffolding (East Midlands) Limited | Banbury | 2025 |
| Allsaints Plastering Limited | Palmers Green | 2012 |
| Allsat Logistics Ltd | Darwen | 2026 |
| Allscaff Services Ltd | Gateshead | 2019 |
| Allscapes & Fencing Ltd | Clacton-On-Sea | 2016 |
| Allscapes Gardens Limited | Bicester | 2008 |
| Allscope Scaffolding Ltd | Bletchingley | 2026 |
| Allseal Glass Limited | Potters Bar | 2012 |
| Allseal Glazing Ltd | Potters Bar | 2023 |
| Allseas UK Limited | Knutsford | 1994 |
| Allseasons Building Ltd | Halesowen | 2022 |
| Allseasons Installations Limited | Mansfield | 2013 |
| Allseasons Maintenance Ltd | Solihull | 2016 |
| Allseasons Property Services Ltd | Northampton | 2022 |
| Allseasons Refurbishment Ltd | Solihull | 2021 |
| Allsebrook Pumps Limited | Hitchin | 1997 |
| Allsec Ltd | Blackburn | 2021 |
| Allserve Construction Ltd | Chatham | 2010 |
| Allserve Heating and Plumbing Limited | Palmers Green | 2003 |
| Allserve London Ltd | Brentwood | 2022 |
| Allserve Maintenance Solutions Limited | Brighton | 2026 |
| Allset & Square Ltd | South Ockendon | 2014 |
| Allset Builders Ltd | London | 2025 |
| Allset Removal Ltd | London | 2022 |
| Allshaw Group Limited | Wilmslow | 2020 |
| Allshires Property Services Ltd | Ruislip, | 2025 |
| Allshutter Doors Ltd | Carrickfergus | 2011 |
| Allshuttersuk Limited | Birmingham | 2018 |
| Allsite Survey Limited | Oldham | 2008 |
| Allsolar Energy Ltd | Gateshead | 2026 |
| Allsons Roofing Limited | Weybridge | 2017 |
| Allsop & Pitts Refrigeration Limited | Torquay | 2025 |
| Allsop Bros. Limited | Ossett | 2018 |
| Allsop Construction Ltd | Stoke-On-Trent | 2009 |
| Allsopp (Construction) Limited | Swadlincote | 2011 |
| Allsopp Avery Partnership Ltd | Milton Keynes | 2020 |
| Allsopp Builderlife Ltd | Haverhill | 2026 |
| Allsopp Property Services Limited | Shefford | 2023 |
| Allsopp Property Solutions Ltd | Heanor | 2024 |
| Allsort Grab Services Ltd | Rochford | 2018 |
| Allsorts Access Ltd | Isle Of Skye | 2018 |
| Allsorts Building Contractors Ltd | Greenford | 2024 |
| Allsorts Construction Ltd | Martock | 2020 |
| Allsorts Contracts Ltd | Strathaven | 2015 |
| Allsorts Groundworks Limited | Peterborough | 2014 |
| Allsorts Solutions Ltd | Treorchy | 2020 |
| Allsorts to Buy NOW Limited | Oswestry | 2017 |
| Allsortsbuilders Limited | Morden | 2025 |
| Allspark Domestic Services Ltd | Coulsdon | 2016 |
| Allspark Electrical & Data Ltd | Sale | 2020 |
| Allspark Electrical Services Limited | Llanelli | 2011 |
| Allspark Home Improvements Ltd | Gosport | 2022 |
| Allspark Solutions Ltd | London | 2025 |
| Allsparks Electrical (NW) Ltd | Manchester | 2019 |
| Allsparks Electrical Contractors Limited | Carmarthen | 2012 |
| Allsparks Electrical Limited | Lancing | 2018 |
| Allsparx Electrical Ltd | Bexleyheath | 2019 |
| Allspec Electrical Limited | Halstead | 2013 |
| Allspec Group Limited | Belvedere | 2020 |
| Allspec Services Ltd | Dartford | 2019 |
| Allsport Spectator Facilities Ltd | Craigavon | 2018 |
| Allsports Construction & Maintenance Limited | Cumbernauld | 2005 |
| Allsquare Building Contractors Limited | Chester | 2003 |
| Allsquare Properties Limited | King'S Lynn | 2009 |
| Allss Limited | Birmingham | 2025 |
| Allstar Air-Conditioning Ltd | Burgess Hill | 2020 |
| Allstar Construction Ltd | Chippenham | 2015 |
| Allstar Contracts Limited | Magherafelt | 2013 |
| Allstar Developments Limited | West Midlands | 1970 |
| Allstar Electrical (Kent) Ltd | Rochester | 2023 |
| Allstar Electrical Ltd | London | 2012 |
| Allstar Electrical Services Limited | Dartford | 2016 |
| Allstar Installations Ltd | Horbury | 2021 |
| Allstar Multi-Trade Limited | Tilbury | 2026 |
| Allstar Plastering Ltd | London | 2014 |
| Allstar Roofing & Maintenance Ltd | Cheshunt | 2025 |
| Allstar Surface Design Ltd | Hullbridge | 2023 |
| Allstar Systems (Norwich) Ltd | Norwich | 2017 |
| Allstar Windows and Doors Limited | Buckingham | 2020 |
| Allsteel Engineering Services Ltd | Stoke-On-Trent | 2016 |
| Allsteel Solutions Limited | Portsmouth | 2025 |
| Allston and Jones Building Limited | Colchester | 2022 |
| Allstone Developments Limited | Scarborough | 2018 |
| Allstone Masonry Limited | Ellesmere | 2016 |
| Allstone Precast Ltd | Greenwich | 2020 |
| Allstone Tiling Limited | Northampton | 2019 |
| Allstones Limited | Kettering | 2025 |
| Allstore Systems Limited | Crawley | 2004 |
| Allstore Systems South Limited | Crawley | 2023 |
| Allstruct Developments Limited | London | 2014 |
| Allstructure Renovations Ltd | Kettering | 2025 |