| !Nflection Advisory Limited | Professional & scientific | 2023 |
| 0800 Sold OUT Limited | Extraterritorial | 1992 |
| 1.618 Investments Ltd | Real estate | 2018 |
| 10 D Avenue Limited | Extraterritorial | 2014 |
| 100 Inverness Terrace Limited | Households | 2003 |
| 104 Chesterton Road, W.10. Management Limited | Extraterritorial | 1982 |
| 104 Elgin Freehold Limited | Households | 2011 |
| 1080 Fitness Ltd | Arts & recreation | 2009 |
| 11 Aldridge Road Villas RTM Company Ltd | Households | 2017 |
| 11 Arundel Gardens Limited | Real estate | 1988 |
| 11 Sheffield Terrace Limited | Real estate | 2003 |
| 112 Greencroft Gardens (Freehold) Limited | Households | 2010 |
| 121 Propertico Ltd | Other services | 2025 |
| 122 Palmerston Road Management Company Limited | Households | 1997 |
| 12845796 Limited | Real estate | 2020 |
| 14 King's Mews Freehold Limited | Households | 2012 |
| 14 Station Street Ltd | Real estate | 2021 |
| 15 Clerkenwell Close Management Limited | Real estate | 2019 |
| 155 Melfort Road RTM Company Limited | Households | 2018 |
| 16 Fairholme Road FH Limited | Households | 2023 |
| 16 Kensington Court Company Limited | Households | 2006 |
| 16A Ltd | Administrative & support | 2023 |
| 16ARLINGTON Ltd | Manufacturing | 2020 |
| 18 Kensington Court Freehold Limited | Real estate | 2004 |
| 18 Thorpe Road Limited | Real estate | 2014 |
| 1891 Limited | Professional & scientific | 2009 |
| 1A Queen's Gate Management Co. Limited | Real estate | 1977 |
| 1ASER Ltd | Other services | 2022 |
| 1K1 Security Services Ltd | Administrative & support | 2017 |
| 1NTUITION Limited | Health & social care | 2023 |
| 1ST Class Homes Limited | Administrative & support | 2003 |
| 1ST Sure Limited | Financial services | 2006 |
| 2.0 & Partners Ltd | Administrative & support | 2016 |
| 21 Cleveland Square Limited | Households | 1987 |
| 21 PM Investment Limited | Real estate | 2021 |
| 22 and 24 Chesterton Road Limited | Households | 2012 |
| 229 Crescent Road Management Company Limited | Administrative & support | 2007 |
| 24 Hanley Road Limited | Real estate | 2009 |
| 24 Mornington Crescent Limited | Households | 2019 |
| 2494 Limited | Professional & scientific | 2019 |
| 24A Highbury Grove Flat Owners Limited | Real estate | 2001 |
| 25TH Frame Productions Ltd | Information & communication | 2008 |
| 26 Eardley Crescent Management Limited | Households | 1985 |
| 26 Frognal Limited | Households | 2002 |
| 26 Hanley Road Limited | Administrative & support | 2009 |
| 26 Seven Media Limited | Arts & recreation | 2016 |
| 26 Wellington Ltd | Real estate | 2024 |
| 27 Powis Square (Management Company) Limited | Households | 2016 |
| 2791 Limited | Real estate | 2018 |
| 28 Aldridge Road Villas (Freehold) Limited | Households | 2023 |
| 29 Thurlow Park Road Freehold Ltd | Households | 2017 |
| 2A Transcom Ltd | Transport & logistics | 2017 |
| 2B Dawson Place Limited | Households | 2002 |
| 2DB Limited | Information & communication | 1986 |
| 3 Oak Group Ltd | Wholesale & retail | 2025 |
| 33 Fordwych Road Limited | Households | 2003 |
| 35 - 39 Station Road Ltd | Construction | 2015 |
| 356554 Ltd | Professional & scientific | 2022 |
| 36 Powis Square RTM Company Limited | Households | 2020 |
| 360 Block Management Ltd | Real estate | 2020 |
| 365 Boxing Management Ltd | Administrative & support | 2023 |
| 38 Lower Sloane Street Management Limited | Households | 2000 |
| 38 Tetherdown Limited | Administrative & support | 2006 |
| 39 Colville Terrace Limited | Households | 2018 |
| 3A Care (Altrincham) Limited | Health & social care | 2016 |
| 3A Care (Bromsgrove) Ltd | Health & social care | 2017 |
| 3A Care (London) Limited | Health & social care | 2015 |
| 3A Care (Solihull) Limited | Health & social care | 2013 |
| 3A Care (Surrey) Ltd | Health & social care | 2020 |
| 3D Firesale Limited | Wholesale & retail | 2020 |
| 3L Electrical Limited | Construction | 2006 |
| 3LWT Limited | Real estate | 2023 |
| 3PHASE Recruitment Limited | Administrative & support | 2018 |
| 3X Tech Ltd | Information & communication | 2020 |
| 4 H T Solutions Ltd | Information & communication | 2013 |
| 4 Southwell Gardens Freehold Limited | Extraterritorial | 2011 |
| 4 Southwell Gardens Limited | Real estate | 1989 |
| 4 Thurloe Street Residents Association Limited | Households | 1981 |
| 4-6 Hatherley Grove Residents Limited | Households | 1996 |
| 41 Chepstow Road Management Limited | Households | 1999 |
| 43 Coleville Gardens Management Limited | Real estate | 1989 |
| 43 Ladbroke Grove (Freehold) Limited | Households | 2024 |
| 43 Newton Road Limited | Real estate | 2005 |
| 45 Ladbroke Grove (Freehold) Limited | Households | 2024 |
| 45 Linden Gardens (Residents Association) Limited | Households | 1993 |
| 46 Enterprises Limited | Hospitality | 2024 |
| 47 Ladbroke Grove (Freehold) Limited | Households | 2024 |
| 48 Chepstow Villas Limited | Households | 1988 |
| 49 Ladbroke Grove (Freehold) Limited | Households | 2024 |
| 4M Mirko E Marta Ltd | Administrative & support | 2014 |
| 4WAY Group Holdings Ltd | Financial services | 2020 |
| 4WAY Investment Properties Ltd | Real estate | 2020 |
| 4WAY Investments Ltd | Real estate | 2020 |
| 4WAY Solutions Limited | Information & communication | 2001 |
| 4WAY Support Services Ltd | Information & communication | 2004 |
| 5 ST. Lawrence Terrace Limited | Households | 1995 |
| 54AI Technologies Ltd | Information & communication | 2026 |
| 56-58 Onslow Gardens Limited | Real estate | 2004 |
| 58 the Grove Management Company Ltd | Households | 2014 |
| 5ELEMENTS Services Limited | Professional & scientific | 2019 |