| 11 Manse Road Limited | Real estate | 2013 |
| 11 Marlborough Road RTM Company Ltd | Households | 2023 |
| 11 Mayford Road RTM Company Limited | Households | 2009 |
| 11 Maygrove Road Limited | Households | 2018 |
| 11 Mind Labs Ltd. | Wholesale & retail | 2026 |
| 11 Minds (Energy) Limited | Professional & scientific | 2025 |
| 11 Minds Ltd | Information & communication | 2025 |
| 11 Minster Road Freehold Limited | Real estate | 2015 |
| 11 Minutes Ltd | Financial services | 2023 |
| 11 Moments Ltd | Wholesale & retail | 2025 |
| 11 Moresby Road Management Limited | Households | 2017 |
| 11 Moreton Terrace Property Company Limited(The) | Households | 1975 |
| 11 Moring Road Limited | Households | 2010 |
| 11 Mulgrave Road RTM Company Limited | Real estate | 2014 |
| 11 Netherhall Limited | Households | 2013 |
| 11 Nevern Square Limited | Households | 2023 |
| 11 Newton Road RTM Company Limited | Households | 2018 |
| 11 North Road Residents' Association Limited | Households | 1982 |
| 11 Northfiel Freehold Ltd | Real estate | 2018 |
| 11 Northfield Limited | Real estate | 2017 |
| 11 Northolme Road Limited | Real estate | 1991 |
| 11 Oakhill Road Management Company Limited | Households | 2005 |
| 11 Old Bond Street London | Wholesale & retail | 1999 |
| 11 Oliver Avenue RTM Company Limited | Households | 2015 |
| 11 Palace Gardens Terrace Freehold Company Limited | Households | 2023 |
| 11 Park Road Management Company Limited | Households | 1973 |
| 11 Parliament Hill Limited | Real estate | 1997 |
| 11 Pellant Road Management Company Ltd | Households | 2015 |
| 11 Phillimore Place Freehold Company Limited | Real estate | 2013 |
| 11 Pinfold Road RTM Company Ltd | Households | 2024 |
| 11 Plus London Ltd | Education | 2025 |
| 11 Point Pleasant RTM Company Ltd | Households | 2026 |
| 11 Prince of Wales Drive Management Company Limited | Households | 2011 |
| 11 Projects Consulting Ltd | Professional & scientific | 2025 |
| 11 Properties Ltd | Real estate | 2021 |
| 11 PS GP Limited | Financial services | 2025 |
| 11 PS Holding Limited | Financial services | 2025 |
| 11 PS JV Holdco Limited | Construction | 2025 |
| 11 PS JV Limited Partnership | | 2025 |
| 11 PS JV Tempco Limited | Real estate | 2025 |
| 11 PS Limited | Real estate | 2025 |
| 11 Publishing Limited | Arts & recreation | 2017 |
| 11 QGT (Freehold) Limited | Households | 2022 |
| 11 Queen's Gardens Management Limited | Real estate | 1989 |
| 11 Queensthorpe Road Management Limited | Households | 2011 |
| 11 Radford Road (Freehold) Limited | Households | 2018 |
| 11 Rancorn RD Freehold Ltd | Real estate | 2021 |
| 11 Rancorn Road RTM Company Limited | Households | 2020 |
| 11 Ravenna Road Limited | Households | 2016 |
| 11 Redburn Street (Freehold) Limited | Households | 2017 |
| 11 Redcliffe Gardens Freehold Limited | Households | 2025 |
| 11 Redcliffe Square Management Limited | Households | 1998 |
| 11 Regents Park Road (Tenants) Limited | Extraterritorial | 1993 |
| 11 Resolve Capital Limited | Financial services | 2024 |
| 11 Ribblesdale Road Management Limited | Households | 2008 |
| 11 Roderick Road Management Limited | Households | 1992 |
| 11 Rosary Gardens Freehold Limited | Households | 2013 |
| 11 Royal Crescent Ltd | Real estate | 2024 |
| 11 Rutland Gate Limited | Households | 1996 |
| 11 Sangora Road (Freehold) Limited | Households | 2021 |
| 11 Sherrard Road Ltd | Households | 2018 |
| 11 Sherwood Ltd | Real estate | 2025 |
| 11 Southdean Gardens (Freehold) Limited | Households | 2026 |
| 11 ST Edmunds Terrace Management Company Limited | Households | 1999 |
| 11 ST John's Park Blackheath (Management) Limited | Households | 1984 |
| 11 ST. Ann's Crescent Limited | Households | 1997 |
| 11 ST. Germans Road Limited | Real estate | 2005 |
| 11 Stanlake Road Limited | Households | 2003 |
| 11 Stars Property Limited | Real estate | 2019 |
| 11 Stella Road Management Limited | Households | 2015 |
| 11 Stowe Road Management Company Limited | Households | 1986 |
| 11 Streatham Ltd | Real estate | 2022 |
| 11 Studios London Ltd | Other services | 2021 |
| 11 Sydney Road Property Management Limited | Real estate | 2007 |
| 11 Sylvan Hill Residents Limited | Real estate | 2004 |
| 11 Tabley Road Management Limited | Households | 2014 |
| 11 Tadema Road Management Company Limited | Households | 1989 |
| 11 Talbot Square Management Company Limited | Households | 2002 |
| 11 Temple Road Limited | Households | 2025 |
| 11 the Common Management Company Limited | Households | 2016 |
| 11 Thornton Hill Management Limited | Households | 2013 |
| 11 Thorold Road RTM Company Limited | Households | 2026 |
| 11 to 13 Glebe Road Freehold Limited | Real estate | 2020 |
| 11 Tottenham Street Limited | Households | 2025 |
| 11 Troy Road RTM Company Limited | Households | 2016 |
| 11 Union Crescent Management Company Limited | Households | 2025 |
| 11 UP Company Ltd | Education | 2025 |
| 11 Upper Addison Gardens Freehold Limited | Households | 2015 |
| 11 Upper Wimpole Street Ltd | Households | 2025 |
| 11 Valkyrie Road Limited | Real estate | 2024 |
| 11 Vera Road RTM Company Ltd | Households | 2012 |
| 11 Westbourne Terrace Road Limited | Households | 2007 |
| 11 Westfield Estates Ltd | Real estate | 2022 |
| 11 White Hart Lane Limited | Real estate | 2005 |
| 11 Winchester Street Ltd | Households | 2018 |
| 11 Windmill Road Limited | Households | 2004 |
| 11 Wolseley Road Freehold Ltd | Households | 2019 |
| 11 Woodborough Road Limited | Financial services | 2017 |
| 11 Woodland Gardens Limited | Households | 2008 |
| 11 Woodstock Grove (NO 2) Freehold Ltd | Real estate | 2016 |