| Adamant Developments Ltd | Bristol | 2007 |
| Adamant Homes Limited | London | 2024 |
| Adamant Investment Corporation Limited | London | 1927 |
| Adamant Scaffolding Limited | Walsall | 2016 |
| Adamant Solutions Ltd | Swanscombe | 2021 |
| Adamant Stroy Limited | London | 2025 |
| Adamanth Construction Ltd | Dagenham | 2017 |
| Adamarr Ltd | Manchester | 2022 |
| Adamas Roofing Ltd | Bath | 2025 |
| Adamco Construction Limited | Liversedge | 2011 |
| Adamex Limited | Welling | 2011 |
| Adamgoldthorpeconstruction Ltd | St. Helens | 2025 |
| Adami Eco Developments Ltd | London | 2024 |
| Adamis Building Ltd | Grays | 2026 |
| Adamist Ltd | Spalding | 2024 |
| Adamj&Co Ltd | Epsom | 2020 |
| Adamkatyroofing Ltd | Shaftesbury | 2026 |
| Adamline Limited | London | 1997 |
| Adamnewby Limited | Bishop Auckland | 2020 |
| Adamo Construction Ltd | Alderley Edge | 2020 |
| Adamo Developments Limited | Cradley Heath | 2020 |
| Adamo Lifestyle Ltd | Chippenham | 2020 |
| Adamo UK Living Ltd | Chippenham | 2021 |
| Adamore Limited | Torquay | 2022 |
| Adampol Properties Limited | Stockport | 2025 |
| Adamport Fire Protection Specialists Limited | London | 2011 |
| Adamprotection Ltd | London | 2022 |
| Adamroyd Developments Limited | Burnley | 2017 |
| Adams & Barford Ltd | Southampton | 2018 |
| Adams & Barker Limited | Haywards Heath | 1992 |
| Adams & Co Builders Ltd | Maidstone | 2017 |
| Adams & Duxbury Joiners & Contractors Limited | Bradford | 2002 |
| Adams & Eden Restoration Limited | Newmarket | 2025 |
| Adams & Newman Ltd | Cambridge | 2006 |
| Adams & Rees Properties Limited | Maidstone | 2026 |
| Adams & Sons Construction Ltd | Ware | 2020 |
| Adams & Sons Holdings Ltd | Ware | 2025 |
| Adams & Wade(Maidenhead)Limited | Berks | 1963 |
| Adams Brickmetrics Limited | Leigh-On-Sea | 2022 |
| Adams Brickwork Limited | Bexhill-On-Sea | 2019 |
| Adams Brothers (Plumbers & Heating Engineers) Limited | | 1963 |
| Adams Brothers Contractors Limited | Ballymena | 2010 |
| Adams Builders Adaptations Limited | West Malling | 2013 |
| Adams Builders Limited | Barnsley | 2026 |
| Adams Building Consultants Ltd | Altrincham | 2005 |
| Adams Building Contractors (Herefordshire) Limited | Hereford | 2012 |
| Adams Building Contractors (Somerset) Limited | Taunton | 2016 |
| Adams Building Services (Southern) Ltd | Eastleigh | 2013 |
| Adams Building Services Ltd | Bedford | 2003 |
| Adams Bullen Construction Ltd | Derby | 2016 |
| Adams Carpentry Wiltshire Ltd | London | 2017 |
| Adams Concrete Pumping Ltd | Hornchurch | 2026 |
| Adams Construction (Wirral) Ltd | | 2007 |
| Adams Construction and Development Limited | Romford | 2023 |
| Adams Construction Services (Wales) Ltd | Blackwood | 2025 |
| Adams Contractors (Leicester) Limited | Tugby | 2003 |
| Adams Contracts & Building Services Ltd | Lowestoft | 2018 |
| Adams Contracts Limited | West Wickham | 2010 |
| Adams Drywall Ltd | Lincoln | 2013 |
| Adams Electrical & Property Ltd | Ossett | 2026 |
| Adams Electrical (South East) Limited | Hastings | 2025 |
| Adams Electrical AE Ltd | Grays | 2025 |
| Adams Electrical Kent Ltd | Herne Bay | 2019 |
| Adams Electrical Safety Limited | Leeds | 2014 |
| Adams Electrical Services (Oxford) Ltd | Bicester | 2024 |
| Adams Electrical Solutions Limited | London | 2014 |
| Adams Electrical Tamworth Ltd | Tamworth | 2022 |
| Adams Electrical.London Ltd | Westerham | 2022 |
| Adams Electrics Ltd | Bovey Tracey | 2013 |
| Adams Family Rail Ltd | Northampton | 2025 |
| Adams GAS and Electric Services Limited | Walsall | 2025 |
| Adams GAS Heating Limited | Paignton | 2009 |
| Adams GAS Ltd | Paignton | 2012 |
| Adams Gascare Limited | Walsall | 2017 |
| Adams Glass and Glazing Limited | Tewkesbury | 2026 |
| Adams Heating Installations Ltd | Dewsbury | 2023 |
| Adams Heating Ltd | Dewsbury | 2020 |
| Adams Home Improvement Ltd | London | 2025 |
| Adams Industrial Doors Ltd | Loughborough | 2017 |
| Adams Industrial Ltd | Gloucester | 2015 |
| Adams Installations Limited | Cheltenham | 2007 |
| Adams J Ltd | Middlesbrough | 2016 |
| Adams Kitchens Ltd | Sowerby Bridge | 2023 |
| Adams Legacy Property Group Ltd | Canvey Island | 2026 |
| Adams Management Limited | Tring | 2015 |
| Adams O'Reilly Limited | Scunthorpe | 2016 |
| Adams Paving Ltd | Lincoln | 2019 |
| Adams PHG Ltd | Leeds | 2022 |
| Adams Pipework Services Limited | Benfleet | 2009 |
| Adams Planning & Project Services Limited | Devon | 2011 |
| Adams Plant Ltd | Tiverton | 2006 |
| Adams Plastering Limited | Leicester | 2023 |
| Adams Plumbing & Construction Ltd | Aylesbury | 2019 |
| Adams Plumbing and Heating Limited | Stratton Audley | 2022 |
| Adams Plumbing and Heating Maintenance Ltd | Leamington Spa | 2019 |
| Adams Plumbing and Heating Services Limited | Camberley | 2023 |
| Adams Plumbing Ltd | Chelmsford | 2018 |
| Adams Properties and Developments Limited | Uxbridge | 2025 |
| Adams Property Contracts Limited | Milton Keynes | 2019 |
| Adams Property Developments Ltd | Norwich | 2026 |