| Acorn Business Centres (Stockport) Limited | Stockport | 1989 |
| Acorn Business Centres (Yeadon) Limited | Leeds | 1989 |
| Acorn Capital Properties Ltd | Northwood | 2021 |
| Acorn Care Centres Limited | Harrow | 2000 |
| Acorn Chase Properties Limited | Frinton-On-Sea | 2024 |
| Acorn Commercial Developments Ltd | Birmingham | 2015 |
| Acorn Commercial Estates Ltd | London | 2014 |
| Acorn Commercial Holdings Limited | Preston | 2016 |
| Acorn Commercial Ltd | Ipswich | 2021 |
| Acorn Construction and Refurbishment Limited | Chislehurst | 2015 |
| Acorn Corporate Solutions Ltd | Manchester | 2022 |
| Acorn Court (Maidstone Road) Management Company Limited | London | 1965 |
| Acorn Court (Maidstone Road, N11) Freehold Limited | London | 1999 |
| Acorn Court Management Company Limited | Cambridge | 2010 |
| Acorn Developers Limited | Oxton | 1999 |
| Acorn Developments (Haslemere) Ltd | Maidstone | 2016 |
| Acorn Developments 2 (SW) Limited | Taunton | 2019 |
| Acorn Developments 2000 Limited | Nr Harleston | 2022 |
| Acorn Developments 3 (SW) Limited | Taunton | 2019 |
| Acorn Developments SW (Devon) Ltd | Taunton | 2019 |
| Acorn Dwellings Limited | Penarth | 2025 |
| Acorn Equity Ltd | Nottingham | 2020 |
| Acorn Estate Agents Limited | St. Leonards-On-Sea | 2005 |
| Acorn Estate Management Limited | Camberley | 2004 |
| Acorn Estates (Newmarket) Limited | Sevenoaks | 2005 |
| Acorn Estates Limited | London | 2025 |
| Acorn Estates Midlands Limited | Coventry | 2015 |
| Acorn Finance and Management Services Limited | Wellington | 2001 |
| Acorn Financial Ventures Ltd | London | 2026 |
| Acorn Grange Apartments Freehold Limited | Goole | 2013 |
| Acorn Group Yorkshire Limited | Bradford | 2025 |
| Acorn Height Ltd | Larkhall | 2025 |
| Acorn Holiday Lets (SW) Limited | Taunton | 2022 |
| Acorn Holiday Lets Limited | Edinburgh | 2020 |
| Acorn Homes (Southern) Limited | Tunbridge Wells | 1995 |
| Acorn Homes (SW) Limited | Taunton | 2012 |
| Acorn Homestays Ltd | Sunderland | 2024 |
| Acorn House Developments Ltd | Knutsford | 2019 |
| Acorn House Management Company Limited | Oxon | 1989 |
| Acorn House Properties Limited | West Sussex | 2012 |
| Acorn Industrial Property Limited | Bootle | 2008 |
| Acorn Interim Management Limited | Lichfield | 2007 |
| Acorn Investment and Trading Ltd | Fareham | 2020 |
| Acorn Investments (Leigh) Limited | Manchester | 2005 |
| Acorn Investments (North West) Limited | Manchester | 2008 |
| Acorn Investments Suffolk Ltd | Ipswich | 2025 |
| Acorn Land & Strategic Property Division Limited | Camberley | 2003 |
| Acorn Land Ltd | Clacton-On-Sea | 2006 |
| Acorn Lane Management Company Limited | Bordon | 2006 |
| Acorn Lane Properties Ltd | London | 2025 |
| Acorn LEA Limited | Looe | 2024 |
| Acorn Legacy Investments Ltd | Surrey | 2024 |
| Acorn Lettings and Management (SW) Ltd | Taunton | 2013 |
| Acorn Lettings Ltd | March | 2020 |
| Acorn Lettings NWL Ltd | London | 2021 |
| Acorn Limited | Camberley | 2002 |
| Acorn London Limited | London | 2025 |
| Acorn Management Limited | Ringwood | 2002 |
| Acorn North Ltd | Droitwich | 2021 |
| Acorn North Property Ltd | Newcastle Upon Tyne | 2023 |
| Acorn Nursery Properties Limited | Milton Keynes | 1990 |
| Acorn Oak Properties Limited | Walton-On-Thames | 1998 |
| Acorn Oakwood Properties Limited | London | 2022 |
| Acorn Park Homes Management Ltd | Sudbury | 2015 |
| Acorn Park Management Ltd | London | 2008 |
| Acorn Park Properties Limited | Staines-Upon-Thames | 2020 |
| Acorn Pictures Properties Company Limited | Liverpool | 2023 |
| Acorn PM Limited | Banwell | 2022 |
| Acorn Prime Estates Ltd | Manchester | 2026 |
| Acorn Prime Properties Ltd | Strathaven | 2024 |
| Acorn Professional Property Investment Ltd | Aylesbury | 2020 |
| Acorn Propco Ltd | Devizes | 2021 |
| Acorn Properties (HAY Mills) Limited | Birmingham | 2024 |
| Acorn Properties (Jesmond) Limited | Darlington | 2000 |
| Acorn Properties (Lesmahagow) Limited | Larkhall | 2005 |
| Acorn Properties (Ncle) Limited | Morpeth | 2013 |
| Acorn Properties 1 Ltd | London | 2020 |
| Acorn Properties Group Ltd | London | 2019 |
| Acorn Properties Inverness Ltd | Inverness | 2024 |
| Acorn Properties Limited | Ashford | 2025 |
| Acorn Properties London Ltd | Romford | 2025 |
| Acorn Properties Management Company Limited | Bury St Edmunds | 2003 |
| Acorn Properties Nottingham Limited | Nottingham | 2017 |
| Acorn Properties NWL Ltd | London | 2020 |
| Acorn Properties Winkfield Limited | Godalming | 2025 |
| Acorn Property & Real Estate Ltd | London | 2023 |
| Acorn Property (EA) Limited | Halesworth | 2024 |
| Acorn Property (Midland) Ltd | Southwell | 2025 |
| Acorn Property (NW) Limited | Widnes | 2010 |
| Acorn Property (South Wales) Limited | Porth | 2012 |
| Acorn Property Agents Ltd | Essex | 2013 |
| Acorn Property Company 2018 Limited | Sidmouth | 2017 |
| Acorn Property Development Limited | Leeds | 1995 |
| Acorn Property Enterprises Ltd | Knaresborough | 2019 |
| Acorn Property Investments 2020 Ltd | Basingstoke | 2021 |
| Acorn Property Investments Limited | Hailsham | 2014 |
| Acorn Property Letting and Management Limited | Bristol | 2010 |
| Acorn Property Limited | Porth | 2016 |
| Acorn Property Maintenance Limited | Alton | 1993 |
| Acorn Property Management (EM) Ltd | Nottingham | 2022 |