| Adstone Investments Limited | London | 2023 |
| Adstra Capital Limited | Manchester | 2025 |
| Adstra Investments Limited | Manchester | 2024 |
| Adstra Property Limited | Manchester | 2024 |
| Adsul Properties Ltd | Harlow | 2022 |
| Adsul Solutions Ltd | London | 2025 |
| Adsum Management Co. Limited | Ripon | 1990 |
| Adsw Property Ltd | North Wembley | 2025 |
| Adswood Properties Limited | Middlesex | 2001 |
| ADT Build Ltd | Reading | 2019 |
| ADT Commercial Lets Limited | Abberley | 2015 |
| ADT Commercial Limited | Widnes | 2024 |
| ADT Housing & Property Limited | King'S Lynn | 2025 |
| ADT Investments Limited | Taunton | 2018 |
| ADT Prop Limited | London | 2025 |
| ADT Properties Ltd | Walsall | 2001 |
| ADT Property Holdings Limited | Chester | 2014 |
| ADT Property Management Limited | Dorset | 2000 |
| ADT Property Rentals Limited | Stevenage | 2018 |
| Adtc Property Services Limited | Bexleyheath | 2023 |
| Adtil Limited | Borehamwood | 2013 |
| Adtran Limited | St Albans | 2012 |
| Adtsb Property Limited | Clevedon | 2024 |
| ADU Investments Ltd | Banbury | 2025 |
| ADU Ltd | Llanelli | 2025 |
| ADU Properties Ltd | Bristol | 2023 |
| Adukalam Property Investment Ltd | Harrow | 2024 |
| Aduki Ltd | Preston | 2022 |
| Adullam Limited | Macclesfield | 2020 |
| Adullam Properties Ltd | London | 2024 |
| Adullam Property Group Ltd | London | 2025 |
| Adullam(Tsp) Ltd | Milton Keynes | 2024 |
| ADUN360 Limited | Newport | 2023 |
| Aduniniyi 7 Property Investment Limited | Rainham | 2022 |
| Adunn Limited | Southport | 2024 |
| Adunni Estate Ltd | Bishop'S Stortford | 2025 |
| Adunum Estates Ltd | London | 2023 |
| Adur Investments Ltd | Shoreham-By-Sea | 2016 |
| Adur Properties Ltd | Thornton Heath | 2025 |
| Adur Property Management Ltd | Shoreham-By-Sea | 2011 |
| Adur River Homes Ltd | Worthing | 2026 |
| ADUR2ARUN Property Management Limited | Hassocks | 2024 |
| Adura Group Ltd | London | 2024 |
| Adurni Barnstaple Limited | Newbury | 2022 |
| Adurni Limited | Newbury | 2017 |
| Adurni West Limited | Newbury | 2020 |
| Adurocks Ltd | Gillingham | 2026 |
| ADV Assets Ltd | Barnet | 2021 |
| ADV Bark Ltd | Aberdeen | 2022 |
| ADV Properties and Developments Ltd | Skegness | 2017 |
| ADV Properties Ltd | Birmingham | 2018 |
| ADV Stays Ltd | Enfield | 2023 |
| ADV13 Limited | Poole | 2022 |
| Adva Property Ltd | Dunfermline | 2018 |
| Advair Limited | London | 2018 |
| Advait Group Ltd | Croydon | 2025 |
| Advait Properties Limited | Northwood Hills | 2026 |
| Advait Property Ltd | Kington | 2025 |
| Advaita Domus Ltd | Wolverhampton | 2018 |
| Advaita Investments Ltd | London | 2024 |
| Advaita Solutions Limited | London | 2009 |
| Advaitha Property Management Ltd | High Wycombe | 2019 |
| Advaitum Prop Ltd | Bury St. Edmunds | 2023 |
| Adval Properties Limited | Bury St. Edmunds | 2021 |
| Advan Capital Limited | Morden | 2019 |
| Advan Properties Limited | Morden | 2024 |
| Advance Acquisitions Ltd | Manchester | 2017 |
| Advance Asset Management Limited | London | 2017 |
| Advance Assets Limited | London | 2018 |
| Advance Building Supplies Limited | Loughton | 1999 |
| Advance Eco Solutions Ltd | Blackburn | 2024 |
| Advance Engineering Projects Ltd | Wisbech | 2020 |
| Advance Engineering Solutions Limited | Liverpool | 2011 |
| Advance Estates Limited | London | 2024 |
| Advance Fire & Security Systems Limited | North Shields | 2022 |
| Advance Foam Limited | Ilford | 1983 |
| Advance Freehold Ltd | Bellshill | 2014 |
| Advance Global Services Limited | Liverpool | 2020 |
| Advance Grid Developments Ltd | Bellshill | 2024 |
| Advance Heat Properties Ltd | Walsall | 2024 |
| Advance Homes Limited | Upminster | 1999 |
| Advance Housing Support Ltd | Birmingham | 2019 |
| Advance Immobiliare Ltd | Manchester | 2024 |
| Advance Land & Planning Limited | Wolverhampton | 2001 |
| Advance Land & Property Sourcing Limited | Chorley | 2020 |
| Advance Manor Walks Limited | Ashington | 2025 |
| Advance Media Technologies Ltd | Manchester | 2024 |
| Advance Neighbourhood Group Ltd | Blackburn | 2026 |
| Advance Northumberland (Commercial) Limited | Northumberland | 1998 |
| Advance Northumberland (Housing) Limited | Northumberland | 1986 |
| Advance Nottingham (Trading) Ltd | Nottingham | 2007 |
| Advance Nottingham Ltd | Nottingham | 2001 |
| Advance Occupational Healthcare Ltd | Wakefield | 2019 |
| Advance on One Ltd. | Aylesbury | 1999 |
| Advance Point Management Company Limited | Nelson | 2023 |
| Advance Pro Ltd | Oldham | 2023 |
| Advance Properties (Nottingham) Ltd | London | 2017 |
| Advance Properties (Scotland) Ltd. | Lochgelly | 2006 |
| Advance Properties Investments Ltd | Gravesend | 2019 |
| Advance Properties UK Investment Ltd | Hayes | 2026 |