| 10 Queen's Gate Terrace Limited | Households | 1993 |
| 10 Quick Street Management Company Limited | Households | 2008 |
| 10 Raleigh Road Management Limited | Households | 2010 |
| 10 Red Lion Square Management Limited | Households | 2002 |
| 10 Red Lion Square (West London) Residents Association Limited | Households | 1999 |
| 10 Redcliffe Square Limited | Households | 2002 |
| 10 Riggindale Road RTM Company Limited | Households | 2013 |
| 10 Right Media Ltd | Information & communication | 2010 |
| 10 Ringford Road Limited | Real estate | 2014 |
| 10 Riversdale Road Management Company Limited | Households | 2024 |
| 10 Rochester ROW Investment Partners Limited | Real estate | 2011 |
| 10 Rosary Gardens Limited | Households | 1996 |
| 10 Rossiter Road Limited | Financial services | 2009 |
| 10 Sale Place Limited | Real estate | 2024 |
| 10 Seasons Ltd | Real estate | 2026 |
| 10 Shipka Road Management Company Limited | Households | 1998 |
| 10 Sisters Avenue Ltd | Households | 2021 |
| 10 Sloane Gardens Management Company Limited | Households | 2002 |
| 10 Soho Square Residents Limited | Real estate | 2014 |
| 10 South Hill Park Gardens Freehold Limited | Households | 2017 |
| 10 South Park Road Management Limited | Households | 2016 |
| 10 Southwell Gardens Freehold Limited | Households | 2012 |
| 10 Square Property Group Limited | Professional & scientific | 2026 |
| 10 ST Augustine's Road Management Company Limited | Households | 2008 |
| 10 ST Cuthberts Road Freehold Limited | Real estate | 2008 |
| 10 ST Edmunds Terrace Limited | Households | 2022 |
| 10 ST. Stephens Gardens Limited | Households | 2001 |
| 10 Stafford Terrace Freehold Limited | Households | 2020 |
| 10 Stanford Estates Ltd | Real estate | 2021 |
| 10 Station Road LP | | 2021 |
| 10 Station Road Nominee 1 Limited | Extraterritorial | 2021 |
| 10 Station Road Nominee 2 Limited | Extraterritorial | 2021 |
| 10 Studland Street Limited | Households | 2025 |
| 10 SUB Ltd | Real estate | 2024 |
| 10 Sudbourne Limited | Real estate | 2020 |
| 10 Sunningdale Gardens Freehold Limited | Households | 2024 |
| 10 Swains Lane Residents Association Limited | Households | 1969 |
| 10 Tadmor Street Management Company Limited | Real estate | 2011 |
| 10 Tankerville Road RTM Company Ltd | Households | 2014 |
| 10 TEN Removals Ltd | Transport & logistics | 2019 |
| 10 Tenths OD Ltd | Professional & scientific | 2026 |
| 10 Theed Street (Management) Limited | Real estate | 1991 |
| 10 Thornton Hill Limited | Households | 1992 |
| 10 Thrale Road Freehold Limited | Households | 2026 |
| 10 Three Leander RTM Company Limited | Households | 2009 |
| 10 Tonbridge Limited | Professional & scientific | 2017 |
| 10 Torrington Park N12 Limited | Households | 2016 |
| 10 Tottenham Street Ltd | Hospitality | 2015 |
| 10 Trinity Square Club Limited | Administrative & support | 2012 |
| 10 Trinity Square Hotel Limited | Administrative & support | 2012 |
| 10 Trinity Square Parking Limited | Administrative & support | 2012 |
| 10 Trinity Square Residences Limited | Administrative & support | 2012 |
| 10 Triton Street Limited | Construction | 2012 |
| 10 Upper Grove RTM Company Ltd | Real estate | 2015 |
| 10 Upper Richmond Road RTM Company Limited | Households | 2025 |
| 10 Valley Road Management Company Limited | Real estate | 2003 |
| 10 Vanbrugh Hill Residents Company Limited | Households | 1994 |
| 10 VE Ltd | Real estate | 2021 |
| 10 Versailles Road RTM Company Limited | Households | 2006 |
| 10 Vicarage Park Limited | Hospitality | 2006 |
| 10 Vincents RD Ltd | Real estate | 2021 |
| 10 Wadham Gardens Limited | Households | 1995 |
| 10 Wedderburn Road Limited | Households | 2008 |
| 10 Wedgewood Estates Limited | Real estate | 2025 |
| 10 Wellington Gardens RTM Company Limited | Households | 2020 |
| 10 West Borough Limited | Real estate | 2009 |
| 10 West Grove Ltd | Real estate | 2010 |
| 10 Westbourne Terrace RTM Company Ltd | Households | 2014 |
| 10 Westcroft Square Freehold Limited | Other services | 2017 |
| 10 Westgate Terrace SW10 Limited | Households | 2003 |
| 10 Whitworth Road Freehold Limited | Hospitality | 2012 |
| 10 Wilmot Place Freehold Limited | Real estate | 2024 |
| 10 Wilmot Place RTM Company Limited | Households | 2022 |
| 10 Windmill Drive Limited | Households | 2002 |
| 10 Windsor Walk Community Interest Company | Real estate | 2018 |
| 10 Woodgrange Drive RTM Company Limited | Households | 2010 |
| 10 Youngs Road Ltd | Real estate | 2020 |
| 10 Zebras Limited | Information & communication | 2011 |
| 10,000 Ltd | Real estate | 2017 |
| 10-10A Knollys Road Limited | Households | 2001 |
| 10-11 GNS Limited | Real estate | 2004 |
| 10-11 Pembridge Square Limited | Financial services | 2017 |
| 10-11 Philbeach Gardens Limited | Households | 2014 |
| 10-11 Rheidol Terrace RTM Company Limited | Households | 2008 |
| 10-12 Birchanger Road RTM Company Limited | Households | 2009 |
| 10-12 KER Freehold Limited | Households | 2022 |
| 10-12 Kimble Road Property Management Limited | Households | 2024 |
| 10-13 Denton Street Limited | Households | 2022 |
| 10-13 Denton Street RTM Company Limited | Households | 2015 |
| 10-14 Letterstone Road Freehold Limited | Real estate | 2016 |
| 10-15 Holmbury Grove (Freehold) Limited | Households | 1990 |
| 10-16 Essex Road London N1 Limited | Professional & scientific | 1997 |
| 10-16 Rathbone Freehold Limited | Households | 2011 |
| 10-16 Webster Gardens Limited | Households | 2015 |
| 10-18 Biskra (Block 2) RTM Company Limited | Households | 2025 |
| 10-18 Manor Gardens London Limited | Households | 2020 |
| 10-2-11 Ltd | Wholesale & retail | 2026 |
| 10-20-40 Touring LLP | | 2018 |
| 10.05.2018 Limited | Real estate | 2018 |
| 10/10 Fitness Ltd | Health & social care | 2025 |