| ALL Compliant Roofing Group Ltd | Calne | 2022 |
| ALL CON Scotland Limited | Glasgow | 2026 |
| ALL Concrete Pumping and Construction Ltd | Leicester | 2019 |
| ALL Connections Electrical Limited | Newquay | 2008 |
| ALL Construcion Ltd | Warrington | 2026 |
| ALL Construct Limited | London | 2024 |
| ALL Construction Claims & Settlements Ltd | Motherwell | 2024 |
| ALL Construction Contractors Ltd | Cardiff | 2019 |
| ALL Construction Developments Ltd | Manchester | 2022 |
| ALL Construction Environment Services Limited | Eastbourne | 2003 |
| ALL Construction Environmental Building Services Limited | Eastbourne | 2023 |
| ALL Construction Kent Ltd | London | 2025 |
| ALL Construction Limited | High Wycombe | 2009 |
| ALL Construction NW Limited | Manchester | 2020 |
| ALL Construction Services Ltd | Southampton | 2025 |
| ALL Construction Services UK (Acs-Uk) Ltd | Highbridge | 2023 |
| ALL Construction Solutions Limited | Bexhill-On-Sea | 2025 |
| ALL Consultancy Limited | Ashford | 2025 |
| ALL Contracts Limited | Renfrew | 2018 |
| ALL Counties Commissioning Limited | Chatham | 2011 |
| ALL Counties Electrical Limited | Christchurch | 2013 |
| ALL Counties Electrical Services Limited | Bishop'S Stortford | 2016 |
| ALL Counties Home Improvements Ltd | Luton | 2016 |
| ALL Counties Scaffolding (Midlands) Limited | Rugeley | 2009 |
| ALL County Driveways Ltd | Amersham | 2025 |
| ALL County Plastering Limited | Wellingborough | 2023 |
| ALL County Roofing Ltd | Oldham | 2026 |
| ALL Courts Limited | Loughborough | 2001 |
| ALL Cozy? Ltd | Maidstone | 2018 |
| ALL Craft Roofing Ltd | Sutton | 2024 |
| ALL Current Electrical Limited | Luton | 2021 |
| ALL Current Electrics Ltd | Annan | 2025 |
| ALL Custom Roofing Ltd | Egham | 2023 |
| ALL Damp Ltd | Pontefract | 2025 |
| ALL Day Build Away Ltd | Liverpool | 2025 |
| ALL Day Building Ltd | Huntingdon | 2018 |
| ALL Day Long (ADL) Limited | Southport | 2019 |
| ALL Day Long Ltd | London | 2023 |
| ALL Day Scaffolding Ltd | Aylesbury | 2022 |
| ALL Decked UP Ltd | Southampton | 2015 |
| ALL Design and Build Ltd | London | 2020 |
| ALL Design Driveways Ltd | Mildenhall | 2024 |
| ALL Development Matters Ltd | Basingstoke | 2014 |
| ALL Dimensions Scaffolding Ltd | Pontypridd | 2014 |
| ALL Directions Services Ltd | Romford | 2015 |
| ALL Division Building Limited | Chatham | 2013 |
| ALL Done Construction Ltd | Dorset | 2020 |
| ALL Done Design Ltd | London | 2009 |
| ALL Done in One Handy-Man Ltd | Troon | 2024 |
| ALL Door Engineering Ltd | Stockport | 2004 |
| ALL Door Maintenance Ltd | Gillingham | 2011 |
| ALL Door Solutions Limited | Sevenoaks | 2026 |
| ALL Drainageservicessw Limited | Westbury | 2025 |
| ALL Driveways Limited | Loughton | 2014 |
| ALL DRY Damp Proofing Limited | Barnsley | 2011 |
| ALL Duct Installations Ltd | Dartford | 2007 |
| ALL Eco Carbon Solutions Ltd | Nottingham | 2023 |
| ALL Eco Electrical Limited | Leicester | 2025 |
| ALL Elec. Ltd | Blackburn | 2016 |
| ALL Electric (South West) Ltd | Teignmouth | 2014 |
| ALL Electric Contractors Ltd | Bretton | 2013 |
| ALL Electric Future Limited | Coventry | 2022 |
| ALL Electric Services Ltd | East Grinstead | 2021 |
| ALL Electrical & Testing Ltd | Norwich | 2010 |
| ALL Electrical (SW) Ltd | Westbury | 2017 |
| ALL Electrical Contractors Ltd | Sidcup | 2015 |
| ALL Electrical Solutions Ltd | Epping | 2024 |
| ALL Electrics and Building Management Limited | Reading | 2017 |
| ALL Electrics Wirral Limited | Cheshire | 2003 |
| ALL Elements Building Company Ltd | Colchester | 2025 |
| ALL Elements Electrical Ltd | Horley | 2024 |
| ALL Elements Ltd | Bexleyheath | 2026 |
| ALL Elements Property Services Limited | Congleton | 2019 |
| ALL Elite Builds Limited | Ilford | 2023 |
| ALL Energy Services Ltd | Hertfordshire | 1996 |
| ALL Engineering and Building Works Ltd | London | 2011 |
| ALL England Diamond Drilling Ltd | Brentwood | 2009 |
| ALL England Fire Doors Ltd | Brentwood | 2022 |
| ALL England Group Ltd | Brentwood | 2014 |
| ALL Epic Welding Services Ltd | Harrow | 2020 |
| ALL Exterior Limited | Ilford | 2022 |
| ALL Facades Services Ltd | London | 2012 |
| ALL Facilities and Maintenance Ltd | Sittingbourne | 2023 |
| ALL Fired UP Ltd | Gosport | 2025 |
| ALL Fit Civils Limited | Nottingham | 2023 |
| ALL Fit Installations Limited | Nottingham | 2019 |
| ALL Fitting Limited | Dartford | 2024 |
| ALL FIX Carpentry & Build Ltd | Bristol | 2023 |
| ALL FIX Carpentry & Construction Ltd | Somerton | 2024 |
| ALL FIX Carpentry Ltd | Ipswich | 2015 |
| ALL FIX Central Ltd | Bury St. Edmunds | 2024 |
| ALL FIX Home Service Ltd | London | 2026 |
| ALL FIX Joinery (NW) Limited | Flintshire | 2003 |
| ALL FIX Maintenance Ltd | London | 2026 |
| ALL FIX Plumbing Limited | Maidstone | 2016 |
| ALL FIX Plumbing Solutions Ltd | Bishops Itchington | 2018 |
| ALL FIX Property Refurbishment Ltd | Thatcham | 2024 |
| ALL Fixing Ltd | Mitcham | 2022 |
| ALL Flat Roofing Limited | London | 2025 |
| ALL Flat Roofing Supplies Ltd | Tonbridge | 2022 |