| 59 Drayton Park Freehold Limited | Households | 2022 |
| 59 Eaton Place Limited | Professional & scientific | 1961 |
| 59 Eaton Place RTM Company Limited | Households | 2013 |
| 59 Edgware Road Ltd | Hospitality | 2018 |
| 59 Endwell Road Freeholders Limited | Households | 2007 |
| 59 Eton Avenue Management Limited | Households | 1996 |
| 59 Fawnbrake Avenue Management Company Ltd | Households | 2018 |
| 59 Finborough Road SW10 Limited | Households | 2011 |
| 59 Gaisford Street Freehold Limited | Households | 2017 |
| 59 Gascony Avenue Limited | Households | 2024 |
| 59 George Lane Limited | Households | 2005 |
| 59 GG Management Limited | Real estate | 2019 |
| 59 Greencroft Gardens Management Company Limited | Households | 2026 |
| 59 Greyhound Lane Limited | Households | 2013 |
| 59 Group Ltd | Financial services | 2022 |
| 59 Grove Hill Road Limited | Real estate | 2014 |
| 59 Gunterstone Road Management Limited | Households | 1984 |
| 59 Hackford Road Ltd | Real estate | 2009 |
| 59 Harcourt Terrace Limited | Households | 2002 |
| 59 Harvist Road RTM Limited | Real estate | 2007 |
| 59 High Street Freehold Limited | Households | 2026 |
| 59 Holland Park Managers Limited | Households | 1964 |
| 59 Honeybrook Road (Freehold) Limited | Households | 2021 |
| 59 Huntingdon Street RTM Company Limited | Households | 2021 |
| 59 Ingelow Road Management Limited | Households | 2002 |
| 59 JWD UK Ltd | Hospitality | 2025 |
| 59 Kcourt Road Limited | Real estate | 2015 |
| 59 Kensington Court Limited | Households | 2011 |
| 59 Linden Gardens RTM Company Limited | Households | 2004 |
| 59 Lyndhurst Drive Management Company Limited | Households | 2026 |
| 59 Moss Lane Limited | Real estate | 2024 |
| 59 Mount Ararat Road Residents Association Limited | Households | 1970 |
| 59 Mount Avenue Residents Limited | Extraterritorial | 1998 |
| 59 Musgrove Road Management Limited | Households | 2004 |
| 59 Nail Lounge Ltd | Other services | 2026 |
| 59 Newlands Park Limited | Households | 1998 |
| 59 Palmerston Crescent Freehold Company Limited | Households | 2019 |
| 59 Parkhurst Road Ltd | Households | 2025 |
| 59 Patshull Road Freehold Limited | Real estate | 2012 |
| 59 Penn Road Limited | Households | 1999 |
| 59 Petley Road (W6) Limited | Households | 2020 |
| 59 Portsea Hall Ltd | Real estate | 2019 |
| 59 PR Ltd | Real estate | 2025 |
| 59 Productions City of Glass Limited | Arts & recreation | 2015 |
| 59 Rain AM Ltd | Wholesale & retail | 2026 |
| 59 Redcliffe Gardens Limited | Households | 1997 |
| 59 Ross Road Limited | Households | 1994 |
| 59 Rudloe Ltd | Real estate | 2004 |
| 59 Sinclair Road Limited | Households | 1989 |
| 59 Southbourne Crescent (Freehold) Limited | Administrative & support | 2008 |
| 59 Southside Limited | Households | 2005 |
| 59 ST Gothard Road Limited | Households | 2019 |
| 59 ST Pauls Avenue Management Company Limited | Hospitality | 1992 |
| 59 ST. Anns Road Management Company Limited | Real estate | 2010 |
| 59 Stowe Road Limited | Real estate | 2003 |
| 59 Talbot Road Management Company Limited | Households | 1982 |
| 59 Tannsfeld Road Management Company Limited | Households | 2006 |
| 59 Truro Road Limited | Households | 2004 |
| 59 Twyford RTM Company Limited | Households | 2019 |
| 59 Tyrwhitt Road Limited | Households | 2009 |
| 59 Wicksteed House Ltd | Real estate | 2024 |
| 59 Wimbledon Park Road RTM Company Limited | Households | 2008 |
| 59 Winchester Street Limited | Households | 2005 |
| 59 Wix's Lane (Freehold) Limited | Real estate | 2004 |
| 59 York Road Limited | Real estate | 2021 |
| 59, Cavendish Management Company Limited | Real estate | 1973 |
| 59-60 Belsize Park Freehold Limited | Real estate | 2011 |
| 59-60 Belsize Park Limited | Construction | 2019 |
| 59-61 Iverson Road RTM Company Limited | Households | 2017 |
| 59-61 Leighton Road RTM Company Limited | Households | 2026 |
| 59-63 Bassett Road Limited | Households | 2025 |
| 59-63 Brooksby Street Limited | Households | 2022 |
| 59/60 Dudley Street Management Company Limited | Households | 2025 |
| 59/61 Fairholme Road Limited | Real estate | 1994 |
| 59/61 Onslow Gardens Limited | Real estate | 1996 |
| 590 Forge Limited | Manufacturing | 2025 |
| 590 Green Lanes Limited | Real estate | 2015 |
| 592 Green Lanes Limited | Real estate | 2018 |
| 59385 Limited | Real estate | 2021 |
| 594 Finchley Road Limited | Households | 2020 |
| 596 Leyton Limited | Hospitality | 2026 |
| 5961 Durban Road Ltd | Households | 2020 |
| 597 Garratt Lane Limited | Households | 2008 |
| 5975 Reading Ltd | Households | 2018 |
| 599 Limited | Manufacturing | 2013 |
| 599 Property Ltd | Real estate | 2024 |
| 59A Limited | Professional & scientific | 2019 |
| 59A Sevington Road Ltd | Households | 2010 |
| 59CHACE Limited | Households | 2013 |
| 59MIL Limited | Information & communication | 2017 |
| 5:13 Wellness Ltd | Wholesale & retail | 2026 |
| 5A Capital Limited | Real estate | 2020 |
| 5A Gillespie Road Management Limited | Households | 2000 |
| 5A LOG Ltd | Wholesale & retail | 2025 |
| 5A Motors Ltd | Wholesale & retail | 2020 |
| 5A Studios Limited | Information & communication | 2004 |
| 5A'S Printing Ltd | Manufacturing | 2021 |
| 5AI Consulting Ltd | Professional & scientific | 2021 |
| 5AI Innovations Ltd | Professional & scientific | 2009 |
| 5ALIGN Ltd | Information & communication | 2024 |