| 100 Riverside Ltd | Wembley | 2025 |
| 100 RYE Street Ltd | Bishop'S Stortford | 2016 |
| 100 Shernhall Street Freehold Ltd | London | 2016 |
| 100 Station Road Management Company Ltd | Liverpool | 2008 |
| 100 Stays Ltd | Palmers Green | 2023 |
| 100 Stranmillis Road Limited | Belfast | 2013 |
| 100 Streatham Vale Limited | London | 2013 |
| 100 Swansea UK Ltd | Swansea | 2019 |
| 100 Tooley Street Limited | London | 2012 |
| 100 Tours Ltd | Maidenhead | 2010 |
| 100 Units Ltd | London | 2025 |
| 100 Warriner Gardens Management Company Limited | Tavistock | 1987 |
| 100 Wyatt Park Road Management Company Limited | London | 2004 |
| 100% Stainless Properties Limited | Plymouth | 2014 |
| 100/102 Longford Road Limited | Bognor Regis | 2023 |
| 1000 Investments Ltd | Southall | 2020 |
| 1000 Properties Limited | London | 2018 |
| 1000 Property Limited | London | 2023 |
| 1000 Rooms Crewe Ltd | Ingatestone | 2018 |
| 1000 Rooms Ltd | London | 2016 |
| 1000 Rooms Stoke Ltd | Ingatestone | 2018 |
| 10000 Houses of Giants Limited | Eastbourne | 2021 |
| 100001 Limited | Milford | 2015 |
| 10002 Limited | Milford | 2015 |
| 1000LOFTS & Cabins Ltd | London | 2024 |
| 1001 Apartments Limited | London | 2013 |
| 1001 Chester Road Management Company Limited | Croydon | 2001 |
| 1001VIVERE Ltd | London | 2025 |
| 10021 Limited | London | 2021 |
| 1008 Property Ltd | Exeter | 2017 |
| 1008 Realty - a Ltd | London | 2023 |
| 100A Wandsworth Bridge Road Ltd | Henley On Thames | 2017 |
| 100ESTATES Limited | Birmingham | 2025 |
| 100FOLD Capital Ltd | Bury | 2025 |
| 100FOLD Properties Ltd | Leicester | 2026 |
| 100KOD Limited | Newcastle Upon Tyne | 2022 |
| 100N3 Ltd | Milton Keynes | 2017 |
| 100X Holdings Limited | London | 2025 |
| 100Z Asset Management Limited | Alton | 2016 |
| 101 Adelaide Grove Limited | London | 2009 |
| 101 ALL Saints Ltd | London | 2023 |
| 101 Aubrey Management Company Limited | Bristol | 2017 |
| 101 Belle VUE NO 1 Limited | Bournemouth | 1998 |
| 101 Bradford Street Limited | Sunderland | 2019 |
| 101 Brighton Road RTM Company Limited | Sutton | 2005 |
| 101 Callander Estates Ltd | London | 2022 |
| 101 Carshalton Ltd | London | 2026 |
| 101 Church Street Limited | Malvern | 2025 |
| 101 Coles Green Road Limited | Wembley | 2016 |
| 101 Commercial Properties Limited | London | 2023 |
| 101 Conway Limited | Brighton | 2003 |
| 101 Coronation Road Management Limited | Bristol | 1985 |
| 101 Cotham Brow Limited | Bristol | 1983 |
| 101 Cranwich Limited | London | 2025 |
| 101 Earls Court Road Limited | London | 1999 |
| 101 Estates & Management Ltd | London | 2017 |
| 101 Estates Ltd | London | 2026 |
| 101 Fortitude Properties Ltd | London | 2021 |
| 101 Gleneagle Road Freehold Limited | London | 2025 |
| 101 Group CAC Ltd | London | 2025 |
| 101 Group Limited | Leeds | 2023 |
| 101 Hanley Road Residents Management Company Limited | | 2004 |
| 101 High Street Ltd | Luton | 2025 |
| 101 Hughenden Road Limited | London | 2004 |
| 101 Investment Group Limited | Birmingham | 2016 |
| 101 Judd Street Limited | London | 2002 |
| 101 Lavender Sweep Management Company Limited | London | 2002 |
| 101 Leicester Ltd | Ruislip | 2019 |
| 101 Moseley Street RTM Company Limited | Southend-On-Sea | 2013 |
| 101 New Bond Street Limited | London | 2007 |
| 101 on Cleveland (V&A) Ltd | London | 2022 |
| 101 Pentonville Road (N1) Freehold Limited | London | 2015 |
| 101 Propco Limited | Coventry | 2021 |
| 101 Properties Limited | London | 2021 |
| 101 Property Estates Ltd | London | 2026 |
| 101 Property Hub Ltd | Brierley Hill | 2020 |
| 101 Property Limited | Hull | 2025 |
| 101 Scotia Limited | Shotts | 2020 |
| 101 Shepeshall SS15 Limited | Hertford | 2025 |
| 101 Slee Limited | London | 2025 |
| 101 Station Road (Freehold) Management Ltd | London | 2018 |
| 101 Walm Lane Limited | London | 1994 |
| 101 Warwick Avenue Limited | Borehamwood | 2002 |
| 101 Weston Park Management Limited | London | 2015 |
| 101 Whichmore Properties Limited | London | 2018 |
| 1010 Group Limited | Glasgow | 2016 |
| 1010 Ltd | Westcliff-On-Sea | 2026 |
| 1010 Property Ltd | Chatham | 2020 |
| 1011 Ltd | Luton | 2020 |
| 1012FR Ltd | Peterborough | 2024 |
| 1013 Market PL Kingston (Freeholdco) Limited | Shirebrook | 2017 |
| 1013 Properties Ltd | Belfast | 2026 |
| 1014 Management Limited | Ilford | 2010 |
| 1014 Property Group Ltd | Newry | 2024 |
| 1015 Property Ltd | Rotherham | 2018 |
| 1017 Property Group Ltd | Hailsham | 2024 |
| 1018 Developments Limited | Southsea | 2002 |
| 101A Hornsey Lane Limited | London | 2023 |
| 101CITYLETS Ltd | Leeds | 2025 |
| 102 and 104 Twickenham Road Freehold Limited | London | 2015 |