| Alpinus Ltd | Purfleet | 2018 |
| Alplast BC Limited | Warwick | 2018 |
| Alpm Ltd | Leyland | 2009 |
| Alpo Air Ltd | South Brent | 2024 |
| Alpo Bros Ltd | Chigwell | 2016 |
| Alpok Ltd | London | 2010 |
| Alpol Utilities Ltd | Leeds | 2020 |
| Alpollo Airconditioning Limited | West Malling | 1996 |
| Alport Opportunities Ltd | Doncaster | 2014 |
| Alprof Ltd | Cardiff | 2013 |
| Alps (Deniz) Plumbing & Heating Ltd | Maidstone | 2025 |
| Alps (Scotland) Limited | Ayrshire | 2002 |
| Alps Building Services Limited | Kingston Upon Thames | 2015 |
| Alps Carpentry & Bespoke Joinery Ltd | Spalding | 2026 |
| Alps Construction Ltd | London | 2020 |
| Alps Construction Services Limited | Ilkley | 2021 |
| Alps Developments Midlands Limited | Walsall | 2013 |
| Alps Home Improvements Ltd | Milton Keynes | 2018 |
| Alps Homes Highley Ltd | Dudley | 2023 |
| Alps Homes Himley Ltd | Dudley | 2024 |
| Alps Homes Netherton Ltd | Dudley | 2026 |
| Alps Investment (London) Ltd | London | 2019 |
| Alps Limited | Southend On Sea | 2019 |
| Alps Plumbing and Heating Ltd | Newton Abbot | 2025 |
| Alps Property and Maintenance Limited | Birmingham | 2016 |
| Alps Scaffolding Ltd | Bootle | 2019 |
| Alps Structure & Style Ltd | Holbeach | 2025 |
| Alpsbook Limited | Whitchurch Lane | 1993 |
| Alpsd Ltd | Waltham Abbey | 2023 |
| Alpsridge Limited | London | 2019 |
| Alpus and Lime Developments Ltd | Battersea Reach | 2026 |
| Alpus Lime Developments Ltd | Hindhead | 2025 |
| ALR Advanced Lifting & Rigging Group Ltd | Milton Keynes | 2023 |
| ALR Developments Limited | Manchester | 2016 |
| ALR Electrical Contractors Ltd | Penygroes | 2021 |
| ALR Electrical Limited | Dunstable | 2018 |
| ALR Electrical Services Ltd | Southampton | 2015 |
| ALR Technologies Limited | Pitlochry | 2014 |
| Alr&Jo Ltd | Richmond | 2015 |
| Alrafi Limited | Burnley | 2016 |
| Alraid Property Maintenance Ltd | Cardiff | 2024 |
| Alrato Associates Limited | Coventry | 2019 |
| Alrb Ltd | London | 2025 |
| Alrend Design Services Ltd | Peterborough | 2022 |
| Alresford Building and Plumbing Ltd | Salisbury | 2020 |
| Alresford Handyman Services Ltd | Alresford | 2018 |
| Alrewas Handyman Services Limited | Burton-On-Trent | 2025 |
| Alrewic Ltd | Walsall | 2024 |
| Alrey Property Company Ltd | Rugeley | 2026 |
| Alrg Limited | London | 2022 |
| Alright 2 Limited | Harrow | 2014 |
| Alrima Management Limited | London | 2015 |
| Alrimo Construction Ltd | London | 2005 |
| Alrk Property Solutions Ltd. | London | 2024 |
| Alro Contractors Limited | London | 2022 |
| Alroc Limited | London | 1995 |
| Alrock Mechanical Ltd | Derby | 2017 |
| Alron Building Services Ltd. | Tain | 2010 |
| Alron Property Services Limited | Ilkeston | 2025 |
| Alross Estates Limited | Merseyside | 1984 |
| Alroubaei Building Services Ltd | London | 2019 |
| Alrowad International for Contracting & Services (Rics) Ltd | London | 2025 |
| Alrtincham Renovations Ltd | Altrincham | 2024 |
| Alry Prefab Ltd | United Kingdom | 2022 |
| ALS (Northern) Ltd | Scarborough | 2013 |
| ALS Blast and Paintshop Ltd | Launceston | 2025 |
| ALS Bros Ltd | London | 2018 |
| ALS Building and Maintenance Limited | London | 2018 |
| ALS Building Contractors Limited | Mexborough | 2018 |
| ALS Building Services Limited | Liverpool | 2024 |
| ALS Carpets and Flooring Ltd | Swansea | 2025 |
| ALS Civil Engineers Holdings Limited | Ramsgate | 2003 |
| ALS Civils Ltd | Glenrothes | 2019 |
| ALS Construction (Oxford) Ltd | Oxford | 2011 |
| ALS Construction Group Ltd | Hertfordshire | 2021 |
| ALS Contractors Ltd | Walton-On-Thames | 2020 |
| ALS Decor & Build Ltd | Enfield | 2024 |
| ALS Decorators Ltd | Nottingham | 2024 |
| ALS Developments (UK) Limited | Leeds | 2009 |
| ALS Direct Limited | Cradley Heath | 2002 |
| ALS Electrical Services Limited | London | 2017 |
| ALS Electrical Solutions Ltd | Chatham | 2025 |
| ALS Fire Limited | East Ham | 2025 |
| ALS Fire Protection Limited | Crawley | 2016 |
| ALS Home Improvement Ltd | Wimborne | 2018 |
| ALS Homes Limited | Mexborough | 2014 |
| ALS Interiors Limited | Ivybridge | 2026 |
| ALS Maintenance Limited | Greenford | 2020 |
| ALS Plastics & Decorating Limited | Fareham | 2020 |
| ALS Plumbing & Heating Limited | Dewsbury | 2012 |
| ALS Plumbing and Building Services Limited | Basildon | 2023 |
| ALS Plumbing Limited | Warrington | 2017 |
| ALS Property Care Ltd | Enfield | 2026 |
| ALS Property Construction Ltd | Wembley | 2021 |
| ALS Property Consultants Ltd | March | 2025 |
| ALS Roofing (Milton Keynes) Ltd. | Milton Keynes | 2019 |
| ALS Roofing Ltd | Milton Keynes | 2026 |
| ALS Roofing South Limited | Fareham | 2020 |
| ALS Scaffolding Ltd | Edenbridge | 2023 |
| ALS Structural Ltd | Sidcup | 2024 |