| AGA Serv Ltd | Luton | 2026 |
| AGA Tiling Ltd | Bedford | 2022 |
| AGA Trans Limited | Torquay | 2018 |
| AGA Utilities Management Services Ltd | Newmarket | 2025 |
| AGA Windows Ltd | London | 2025 |
| Aga's 2 Boilers Ltd | Ellesmere Port | 2025 |
| Aga's Little Explorers Ltd | London | 2017 |
| Agaam Building Services Ltd | Mitcham | 2025 |
| Agaandy Limited | London | 2016 |
| Agace Brothers Roofing Limited | Aylesbury | 2015 |
| Agacorp Ltd | Romford | 2023 |
| Agaf Associates Ltd | Loughton | 2018 |
| Agafi Holdings Ltd | London | 2025 |
| Agage Developments Ltd | Rickinghall, Diss | 2024 |
| Against the Grain Carpentry and Construction Ltd | Eastbourne | 2025 |
| Against the Grain Construction Limited | Middx | 2024 |
| Against the Grain Finishing Ltd | London | 2017 |
| Against the Grain London Ltd | Horsham | 2020 |
| Against the Grain Woodwork Ltd | Watford | 2019 |
| Agal Building Ltd | Welling | 2024 |
| Agal Ltd | Leicester | 2026 |
| Agam Builders Ltd | Dagenham | 2019 |
| Agam Construction Services Ltd | Bexleyheath | 2025 |
| Agam Electrics Ltd | Slough | 2020 |
| Agam Home Builders UK Ltd | West Bromwich | 2023 |
| Agam Property Maintenance Ltd | West Byfleet | 2024 |
| Agamdeep Construction Limited | Reading | 2023 |
| Agamm Ltd | Gateshead | 2025 |
| Aganics Limited | Sheffield | 2010 |
| Aganto Limited | Crewe | 2006 |
| Agape Properties Ltd | London | 2013 |
| Agape Property & Refurbishment Ltd | Croydon | 2024 |
| Agar and Gregory Electrical Services Limited | Portsmouth | 2010 |
| Agar Construction Ltd | Hull | 2021 |
| Agar Interiors Limited | Wisbech | 2022 |
| Agar Thermal Insulations Ltd | Coalville | 2023 |
| Agard Living Limited | Leicester | 2021 |
| Agarda Ltd | Bedford | 2020 |
| Agas and Boilers Ltd | Leighton Buzzard | 2021 |
| Agas Plumbing Limited | Armagh | 2023 |
| Agate Properties Limited(The) | London | 1967 |
| Agathis Construction Ltd | Bedworth | 2024 |
| Agatom Property Maintenance Limited | Droitwich | 2025 |
| Agaues Ltd | Watford | 2017 |
| Agave Interiors Ltd | London | 2021 |
| AGB (Church Road) Limited | Brighton | 2001 |
| AGB Aggregates Ltd | West Horndon | 2025 |
| AGB Automation Ltd | Basingstoke | 2010 |
| AGB Build Ltd | Bolton | 2015 |
| AGB Builders (Felixstowe) Limited | Ipswich | 2013 |
| AGB Building & Roofing Ltd. | Bishop'S Stortford | 2019 |
| AGB Building Limited | London | 2012 |
| AGB Carpentry Limited | Portsmouth | 2009 |
| AGB Concept Limited | London | 2026 |
| AGB Construct Ltd | London | 2022 |
| AGB Construction Ltd | Hornchurch | 2021 |
| AGB Contracts Ltd | Portrush | 2013 |
| AGB Developments Dartford Ltd | London | 2019 |
| AGB Electrical MCR Limited | Manchester | 2020 |
| AGB Electrical Services Kent Limited | Folkestone | 2026 |
| AGB Electrical Services Limited | Wakefield | 2017 |
| AGB Firepro Ltd | Mitcham | 2022 |
| AGB Heating Ltd | Basildon | 2024 |
| AGB Hvac Limited | Leeds | 2022 |
| AGB Investments Dartford Ltd | London | 2023 |
| AGB Joinery Limited | Perth | 2017 |
| AGB North Ltd | Manchester | 2026 |
| AGB Plumbing & Heating Limited | Basildon | 2011 |
| AGB Scotland Limited | Perth | 2008 |
| AGB Services (South West) Limited | Bristol | 2008 |
| AGB Surveyors Ltd | Aberdeen | 2026 |
| Agbara Homes Limited | London | 2021 |
| Agbupvc Installations Ltd | Gainsborough | 2026 |
| AGC Anderson General Construction Ltd | London | 2021 |
| AGC Build Ltd | London | 2025 |
| AGC Buildpro Solution Ltd | Wolverhampton | 2024 |
| AGC Company for Trading and Construction Ltd | Manchester | 2026 |
| AGC Construction Limited | Harrow | 2025 |
| AGC Demolition Limited | Dunstable | 2019 |
| AGC Electrical Solutions Limited | Liverpool | 2003 |
| AGC Electrics Ltd | Thornton Heath | 2017 |
| AGC Energy Ltd | Exmouth | 2025 |
| AGC Engineering Scotland Ltd | Dundee | 2026 |
| AGC Engineering Services Ltd | Swansea | 2025 |
| AGC Group Ltd | Sandhurst | 2026 |
| AGC Infracon PVT Ltd | Chelmsford | 2024 |
| AGC Insulation Limited | Gravesend | 2021 |
| AGC Joinery Limited | Preston | 2015 |
| AGC Plumbing & Heating Ltd | Reigate | 2020 |
| AGC Property Limited | Tonbridge | 2012 |
| AGC Scaffolding Limited | Dunstable | 2022 |
| AGC Site Services Limited | Sandbach | 2024 |
| AGC System Scaffolding Limited | Aylesbury | 2010 |
| AGC Systems T/A Rainbow Restoration Ltd | Magherafelt | 2016 |
| AGC Utilities Limited | Newry | 2017 |
| Agcc Contracts Limited | Clacton-On-Sea | 2017 |
| Agcc Properties Ltd | Milton Keynes | 2020 |
| Agcm Ltd | Suffolk | 2019 |
| Agcoolingservices Ltd | Watford | 2026 |
| AGD (Kirriemuir) Limited | Dundee | 2015 |