| ALL Works Builders Limited | Hungerford | 2022 |
| ALL Works Group Bristol Ltd | Bristol | 2025 |
| ALL Works Group Ltd | Bexley | 2010 |
| ALL Works Yorkshire Ltd | Leeds | 2020 |
| ALL Year Plumbing Limited | Melbourn | 2023 |
| ALL YOU CAN Heat GAS Services Ltd | Swindon | 2019 |
| ALL YOU Need Renovations Ltd | Radcliffe | 2018 |
| ALL Your GAS Plumbing & Electric Needs Ltd | Eastleigh | 2022 |
| ALL Your Property Services Limited | Knowlhill | 2022 |
| All's Plumbing Ltd | Croydon | 2015 |
| ALL- Star Handyman Ltd | Warrington | 2025 |
| All-Aspex Decorating Management Services Limited | Camborne | 2010 |
| All-Civil Engineering Ltd | Stanford-Le-Hope | 2022 |
| All-Electricuk Limited | London | 2017 |
| All-Fix Property Solutions Ltd | Glasgow | 2024 |
| All-Form Group Limited | Basildon | 2018 |
| All-Formwork Ltd | Wadebridge | 2009 |
| All-Go Projects Ltd | Glasgow | 2026 |
| All-Highs Limited | Basildon | 2015 |
| All-In Building Solutions Limited | Wolverhampton | 2020 |
| All-In Vac’S Ltd | Canterbury | 2024 |
| All-In-One UK Development Ltd | London | 2019 |
| All-Round Electrical Ltd | Weston-Super-Mare | 2019 |
| All-Round Electrics Limited | Handsworth | 2024 |
| All-Round Home Services Ltd | Hyde | 2024 |
| All-Round Renovation (UK) Ltd. | London | 2012 |
| All-Serv Heating & Electrical Ltd | Rhyl | 2020 |
| All-Tec Builders Limited | Dalry | 2015 |
| All-Tec Joiners Builders Limited | Dalry | 2026 |
| All-Trade Contractors Limited | West Malling | 2006 |
| All-Turbo Limited | Orpington | 2015 |
| All-Types Roofing Limited | Wotton Under Edge | 2004 |
| All-Ways Property Repairs Ltd | Sheffield | 2021 |
| All-Ways Stainless Services Limited | Milford Haven | 2007 |
| ALL2020 Ltd | Dartford | 2017 |
| ALL2BUF Ltd | South Ockendon | 2022 |
| ALL3C Construction Limited | Brentwood | 2019 |
| ALL3DEES Construction Limited | Nottingham | 2023 |
| ALL4ART Limited | London | 2024 |
| ALL4DOORS Ltd | Stockport | 2020 |
| ALL4HEAT Ltd | Aylesbury | 2024 |
| ALL4HOUSE London Ltd | Hoddesdon | 2014 |
| Alla Activity Group Ltd. | London | 2024 |
| Alla Builders Ltd | London | 2022 |
| Alla Construction Ltd | Enfield | 2020 |
| Allabout Building Ltd | London | 2026 |
| Allair Services Ltd | Southampton | 2022 |
| Allam Developments Limited | Hull | 1996 |
| Allam Electrical Experts Ltd | Doncaster | 2026 |
| Allamani Tiling & Building Ltd | Cardiff | 2022 |
| Allan & LOY Plumbing & Heating Services Ltd | Kilmarnock | 2024 |
| Allan & LOY Property Development Ltd | Kilmarnock | 2025 |
| Allan & Sons Renovations Limited | Luton | 2023 |
| Allan (Construction) Design and Build Limited | Sheffield | 2017 |
| Allan A'Court Builders Ltd | Whitefield | 2015 |
| Allan Banu Roughcasting Ltd | Perth | 2026 |
| Allan Barnett Installations Ltd. | Warrington | 2013 |
| Allan Bespoke Interiors Ltd | Morpeth | 2025 |
| Allan Bokas Piping Services Ltd | Helmsdale | 2017 |
| Allan Bowden Installations Limited | Taunton | 2006 |
| Allan Bromley Construction Limited | Barrow-In-Furness | 2003 |
| Allan Brown ALL Trades Ltd | Dundee | 2023 |
| Allan Brown Electrical Services Ltd | Bathgate | 2020 |
| Allan Brown Joiner & Building Services Ltd | Dundee | 2017 |
| Allan Bryceland Electrical Ltd | Glasgow | 2020 |
| Allan Building & Joinery Limited | Morpeth | 2006 |
| Allan C. Gillibrand Ltd | Sudbury | 2005 |
| Allan Chivers Electrical Limited | Eastbourne | 2018 |
| Allan Christian Electrical Services Limited | Nottingham | 2004 |
| Allan Clark Enterprises Limited | Castle Douglas | 2015 |
| Allan Clark Painting and Taping Contractor Ltd | Dingwall | 2025 |
| Allan Clyne Heating Limited | Kirriemuir | 2022 |
| Allan Construction and Surfacing Contractors Ltd | Carlisle | 2026 |
| Allan Construction Ltd | Stranraer | 2022 |
| Allan Davies Plant Limited | Pencader | 2012 |
| Allan Developments Ltd | Glasgow | 2023 |
| Allan Dyson Asbestos Services Limited | Stevenage | 1996 |
| Allan Electrical (Turriff) Limited | Turriff | 2017 |
| Allan Electrical Services (Grimsby) Ltd | Grimsby | 2010 |
| Allan Electrical Services Aberdeen Ltd. | Westhill | 2017 |
| Allan Electrical Services Ltd | Kilmarnock | 1997 |
| Allan Electrics Ltd | Buckie | 2017 |
| Allan Farrow Builders Limited | Brighton | 1993 |
| Allan GAS Services Limited | Strathaven | 2017 |
| Allan Glazing & Property Services Limited | Bristol | 2020 |
| Allan Goldstein Engineers Ltd | London | 2018 |
| Allan Greenfield Plumbing Ltd | Lisburn | 2014 |
| Allan Harryman Engineering Ltd | Bangor | 2003 |
| Allan HAY Roofing Limited | Penicuik | 2024 |
| Allan Henrys Real Estate Limited | Grimsby | 2025 |
| Allan Hodgson Ltd | Kendal | 2001 |
| Allan Hodgson Roofing Contractor Ltd | Carlisle | 2018 |
| Allan Industrial Roofing Ltd | King'S Lynn | 2019 |
| Allan Jenkins Complete Building Services Limited | Cheltenham | 2020 |
| Allan Joinery Services Limited | Inverness | 2022 |
| Allan Jones Construction Limited | Bartley Green | 2001 |
| Allan Jones Properties Ltd | Birmingham | 2022 |
| Allan Kirkbride PVC Windows & Doors Limited | Carlisle | 2020 |
| Allan Lever Upvc Ltd | Chorley | 2010 |
| Allan Lord Electrical Limited | Burbage | 2003 |