| 1ST Quote Direct Limited | Surrey | 2000 |
| 1ST Rapid Maintenance Ltd | Sheffield | 2009 |
| 1ST Rate Properties Limited | London | 2022 |
| 1ST Rock Ltd | London | 2024 |
| 1ST Rossetti International Ltd | Hyde | 2024 |
| 1ST Space Ltd | London | 2025 |
| 1ST Stay Ltd | London | 2024 |
| 1ST Step Housing (Kent) Limited | Billingham | 2014 |
| 1ST Step Property Ltd | Ilford | 2005 |
| 1ST Stepping Stone Limited | London | 2003 |
| 1ST Stop Investments Limited | London | 2012 |
| 1ST Stop Properties Limited | Harrow | 2023 |
| 1ST Stop Property Holdings Great Yarmouth Ltd | London | 2026 |
| 1ST Stop Property Holdings Limited | London | 2017 |
| 1ST Telecom Alarms Limited | London | 2000 |
| 1ST Tier Limited | Surrey | 1999 |
| 1ST Training Properties Limited | Great Yarmouth | 2011 |
| 1ST Union Property Ltd | London | 2017 |
| 1ST Unique Developments Limited | London | 2017 |
| 1ST Vine Ltd | London | 2022 |
| 1ST Vision Properties Limited | Worcester | 2023 |
| 1ST Waterside Properties Limited | Hythe | 2004 |
| 1ST&68TH Enterprises Ltd | Edinburgh | 2003 |
| 1STAVENUE.CO.UK Limited | Gravesend | 2006 |
| 1STAYS (Bravo) Limited | London | 2025 |
| 1STBLOCK Limited | Poole | 2025 |
| 1STBROSS Limited | Long Eaton | 2021 |
| 1STCHOICEPROPERTIES.LONDON Limited | Greenford | 2018 |
| 1STEIGHT Ltd | London | 2023 |
| 1STFORHYGIENE Limited | Bootle | 2021 |
| 1TIM617 Limited | Sale | 2017 |
| 1TO20 Springfield Limited | Liverpool | 2023 |
| 1TON Ltd | Birmingham | 2020 |
| 1TST Limited | London | 2024 |
| 1UKN Limited | Wembley | 2020 |
| 1UP Homes Ltd | Sheffield | 2023 |
| 1XDH Grandchildrens Investments Limited | Stockton-On-Tees | 2023 |
| 1Y London Limited | London | 2013 |
| 1ZE Estate Ltd | Edinburgh | 2023 |
| 2 & 3 Triton Limited | Northampton | 2006 |
| 2 & 4 Ambergate Street Limited | Sevenoaks | 2006 |
| 2 & 4 Doverfield Management Company Ltd | Hereford | 2025 |
| 2 & 6 Clocktower Mews Ltd | Orpington | 2012 |
| 2 - 4 Sedgley High Street Ltd | Dudley | 2023 |
| 2 10 Marylands Road Ltd | London | 2019 |
| 2 Aberdeen Park Limited | | 2005 |
| 2 Aces Investments Ltd | Dagenham | 2025 |
| 2 AD (UK) Limited | Birmingham | 2015 |
| 2 Alaksa Investments Group Ltd | London | 2025 |
| 2 Albion House Ltd | Ilford | 2022 |
| 2 Albion Terrace Management Ltd | Bath | 2023 |
| 2 Alexandra Park Road Limited | Folkestone | 2006 |
| 2 and 4 Ashleigh Road Limited | London | 2005 |
| 2 and 4 Bryan Avenue Ltd | London | 2020 |
| 2 Argyle Villas Brighton Ltd | Hove | 2009 |
| 2 ARH Limited | Croydon | 2025 |
| 2 Aristotle Road Residents Limited | Bristol | 2001 |
| 2 Arnewood Road Southbourne RTM Company Limited | Bournemouth | 2004 |
| 2 Arrows Properties Ltd | Edgware | 2024 |
| 2 Artillery Road Limited | Ramsgate | 2016 |
| 2 Asylum Road Management Limited | Farnham | 2021 |
| 2 Atherfold Road Limited | London | 2001 |
| 2 Atherstone Ltd | London | 2021 |
| 2 Auckland Road (Croydon) RTM Company Limited | Bromley | 2018 |
| 2 Avenue Elmers Management Limited | Surbiton | 2005 |
| 2 AYM Limited | Enfield | 2025 |
| 2 B Homes Limited | Ipswich | 1999 |
| 2 Bakers Farm Ltd | Biggleswade | 2022 |
| 2 Bath Street Ltd | Bristol | 2025 |
| 2 Beercart Lane Holdings Ltd | Rochester | 2015 |
| 2 Belle VUE Apartments Ltd | Kenilworth | 2022 |
| 2 Belmont Properties Limited | London | 2020 |
| 2 Benwell Road Ltd | London | 2008 |
| 2 Bercta Road Management Limited | London | 2013 |
| 2 Bhenaa Limited | Bradford | 2015 |
| 2 Boscombe Road Ltd | Folkestone | 2026 |
| 2 Boyd Road Colliers Wood Limited | London | 2008 |
| 2 Brampton Road Freehold Ltd | London | 2023 |
| 2 Brighton Terrace Limited | Penzance | 2022 |
| 2 Bros Realty Group Ltd | Bathgate | 2025 |
| 2 Brothers Investment Ltd | Birmingham | 2024 |
| 2 Broughton Road Ltd | Lytham St. Annes | 2018 |
| 2 Brunswick Drive Limited | Harrogate | 2026 |
| 2 Bryan Avenue Ltd | London | 2025 |
| 2 Bryantwood Road RTM Company Limited | Tiverton | 2010 |
| 2 Bubbly Gals Ltd | London | 2020 |
| 2 Buckleigh Road Management Company Limited | | 2000 |
| 2 Burlington Gardens Management Limited | London | 2007 |
| 2 Burston Road Limited | Southampton | 2022 |
| 2 BUX Limited | Glenrothes | 2020 |
| 2 Callcott Road (Residents) Limited | | 1998 |
| 2 Campbell Road RTM Company Limited | Bournemouth | 2020 |
| 2 Cantelowes Road Freehold Limited | London | 2026 |
| 2 Cantelupe House Limited | Croydon | 2025 |
| 2 Carbis Water Management Ltd | St. Ives | 2013 |
| 2 Carlton Hill Management Limited | London | 1991 |
| 2 Castle Park (Lancaster) Limited | Lancaster | 1991 |
| 2 Castlewood Road Ltd | London | 2021 |
| 2 Catharine Place Estate Management Limited | Bath | 2025 |
| 2 Causton Road Management Company Limited | London | 2014 |