| Alora Group Ltd | Harrow | 2022 |
| Alora Ltd | Chatham | 2014 |
| Alorabet Construction Ltd | Waltham Cross | 2025 |
| Aloria Builds Ltd | Edinburgh | 2024 |
| Alotesse Retail Ltd | London | 2020 |
| Alouette Developments Limited | Chesham | 2020 |
| Alouette Drylining Limited | Chesham | 2013 |
| Aloy Constructs Ltd | Hounslow | 2024 |
| ALP Access Ltd | Greenock | 2025 |
| ALP Brickwork & Building Ltd | Yarmouth | 2016 |
| ALP Builders Limited | Leigh-On-Sea | 2022 |
| ALP Building Services Ltd | Colchester | 2024 |
| ALP Construct Ltd | London | 2024 |
| ALP Construction London UK Ltd | Waltham Cross | 2026 |
| ALP Construction Ltd | Highbridge | 1997 |
| ALP Developments (Cambs) Limited | Peterborough | 2008 |
| ALP Developments Ltd | Sibford Gower | 2024 |
| ALP Group Limited | London | 2016 |
| ALP Homes Group Ltd | Newcastle Upon Tyne | 2023 |
| ALP Maintenance & Cleaning Ltd | Dagenham | 2025 |
| ALP Plant Operators Ltd | Stoke-On-Trent | 2019 |
| ALP Professional Services Ltd | Maidstone | 2015 |
| ALP Projects & Coatings Ltd | Bradford | 2025 |
| ALP Projects Ltd | Luton | 2022 |
| ALP Property Care Ltd | Harrow | 2025 |
| ALP Property Maintenance Ltd | Hatfield | 2019 |
| ALP Property Services (Harmer Street) Limited | Hook | 2016 |
| ALP RF Solutions Ltd | Worksop | 2023 |
| ALP Roofing Limited | Wilstead | 2022 |
| ALP Services Ltd | London | 2025 |
| ALP Windows, Doors and Conservatories Ltd | Peterborough | 2017 |
| Alpa Electrical Services Limited | Worcester | 2016 |
| Alpa Joiners Limited | Denny | 2000 |
| Alpaca Agriculture Ltd | Ripon | 2024 |
| Alpaca Building Contractors Ltd | London | 2021 |
| Alpah Limited | Stornoway | 2018 |
| Alpajero Ltd | London | 2024 |
| Alpal Developments Limited | Croydon | 2003 |
| Alpano Limited | London | 2018 |
| Alpaso Ltd | Northwood | 2024 |
| Alpaswiss Services Ltd | London | 2025 |
| Alpat Properties Limited | Liverpool | 2021 |
| Alpav Project Management Ltd | Bedford | 2024 |
| Alpay Lifts 2006 Ltd | Hornchurch | 2017 |
| Alpcarpentry Ltd. | Bordon | 2005 |
| Alpcon Homes Limited | Croydon | 2015 |
| Alpcon Limited | Milton Keynes | 2012 |
| Alpct 1 Limited | Edinburgh | 2013 |
| Alpd Interiors Ltd | Dartford | 2023 |
| Alpeggi Limited | Oxford | 2017 |
| Alpen Contracts Ltd | Walsall | 2026 |
| Alpena Ventures Limited | Bletchingley | 2004 |
| Alpeng Engineering Services Ltd | London | 2021 |
| Alpenhaus Ltd | Westbury | 2019 |
| Alpenza Ltd | Wilmslow | 2024 |
| Alperton Projects 2 Ltd | Heaton Mersey | 2015 |
| Alperton Projects 3 Ltd | Stockport | 2015 |
| Alperton Projects Ltd | Heaton Mersey | 2013 |
| Alperton Rents Limited | Wembley | 2018 |
| Alpex Cladding Ltd | Birmingham | 2019 |
| Alph Construction Services Limited | London | 2015 |
| Alph Fire Limited | Waltham Cross | 2021 |
| Alph Projects Limited | Canterbury | 2026 |
| Alph Properties Ltd | Clitheroe | 2025 |
| Alpha & Omega Services Ltd | London | 2021 |
| Alpha (Cheam) Limited | Sutton | 2018 |
| Alpha (Firth Road) Ltd | Darlington | 2023 |
| Alpha (Rugby) Limited | Malvern | 2010 |
| Alpha (Stonecross) Limited | Malvern | 2013 |
| Alpha (Wrexham) Windows Ltd | Wrexham | 2002 |
| Alpha 05 Ltd | London | 2023 |
| Alpha 1 Construction Limited | Derby | 2015 |
| Alpha 1 Developments Limited | Wolverhampton | 2025 |
| Alpha 1 Maintenance Limited | Southampton | 2022 |
| Alpha 1 Security Solutions Limited | Chesterfield | 2009 |
| Alpha 1 Trades Ltd | Dunstable | 2015 |
| Alpha 10 Ltd | Larkhall | 2018 |
| Alpha 2 Developments Limited | Wolverhampton | 2025 |
| Alpha 2 Zulu Construction Ltd | Hook | 2022 |
| Alpha 2994 Limited | Northampton | 2013 |
| Alpha 3 Developments Ltd | Wolverhampton | 2025 |
| Alpha Access Ltd | Southend-On-Sea | 2023 |
| Alpha Air Conditioning UK Limited | Herts | 2004 |
| Alpha Air Distribution Limited | Horsham | 2010 |
| Alpha Air Handling Services Ltd | Harrow | 2021 |
| Alpha Air Testers Ltd | Diss | 2018 |
| Alpha Airsource Ltd | Chester | 2023 |
| Alpha and Omega Developments Ltd | Southend-On-Sea | 2020 |
| Alpha and Omega Joinery Limited | Larkhall | 2023 |
| Alpha Arboriculture Ltd | Sidcup | 2022 |
| Alpha Architects Ltd | Buckhurst Hill | 2017 |
| Alpha Ascend Access Ltd | Glasgow | 2024 |
| Alpha Asset Holdings (UK) Ltd | Coalville | 2023 |
| Alpha Associates Ltd | Wells | 2008 |
| Alpha Automation Limited | Lisburn | 2015 |
| Alpha B C Services Ltd | Cwmbran | 2021 |
| Alpha B N K Renovations Ltd | Kidderminster | 2025 |
| Alpha Bathrooms and Kitchens Limited | Kidderminster | 2017 |
| Alpha Bathrooms and Plumbing Ltd | Motherwell | 2025 |
| Alpha Beat Shopfronts Shutters Ltd. | Tipton | 2019 |