| 42 Valmar Road Limited | Extraterritorial | 2007 |
| 42 Victoria Crescent RTM Company Limited | Real estate | 2008 |
| 42 Warwick Avenue Limited | Real estate | 1990 |
| 42 Wealth Management Ltd | Financial services | 2015 |
| 42 Westwell Road Management Limited | Real estate | 2015 |
| 42 Wetherell Road Limited | Hospitality | 2005 |
| 42 Wickham Road Freehold Limited | Households | 2024 |
| 42 Wilberforce Road Limited | Real estate | 2012 |
| 42 Wilton Way Management Limited | Households | 1987 |
| 42 Wood Ltd | Administrative & support | 2020 |
| 42 Woodland Terrace Ltd | Households | 2025 |
| 42 Woodstock Court Limited | Real estate | 2019 |
| 42 Woodstock Grove Limited | Households | 2016 |
| 42, Biscay Road (Freehold) RTE Company Limited | Real estate | 2005 |
| 42, Frognal (Hampstead) Management Limited (the) | Households | 1973 |
| 42-42A Wilmington Square Freehold Management Company Limited | Households | 2022 |
| 42-43 Pall Mall Management Company Limited | Extraterritorial | 2014 |
| 42-44 Avenue Road Limited | Households | 2015 |
| 42-44 Delancey Street Management Company Ltd | Real estate | 2013 |
| 42-44 Denman Road Management Limited | Households | 2008 |
| 42-44 Leverton Street (Freehold) Limited | Households | 2020 |
| 42-44 Southcroft Road Limited | Households | 2019 |
| 42-46 WG Limited | Construction | 2018 |
| 42/43, ELM Park Gardens Limited | Households | 1963 |
| 42/44 Fernlea Road Ltd | Households | 2013 |
| 42/44 Heysham Road Limited | Households | 2014 |
| 42/44 Santos Road Limited | Households | 2003 |
| 420 Beverages Ltd | Wholesale & retail | 2018 |
| 420 Consultancy Limited | Information & communication | 2006 |
| 42026 Ltd | Real estate | 2026 |
| 421 Footscray Road Limited | Professional & scientific | 2011 |
| 421 Mile END Road Management Limited | Households | 1996 |
| 422 Entertainment Limited | Arts & recreation | 2021 |
| 422 Mall Management Limited | Real estate | 2019 |
| 422 Uxbridge Road Ltd | Real estate | 2021 |
| 422 Wheels Ltd | Information & communication | 2026 |
| 422WW Ltd | Other services | 2023 |
| 423 Footscray Road Limited | Other services | 2001 |
| 423 New Cross Road London Limited | Households | 1997 |
| 424ENTERTAINMENT Ltd | Information & communication | 2023 |
| 424JSTUDIO Ltd | Professional & scientific | 2025 |
| 425 Fulham Palace Road Ltd | Households | 2023 |
| 425 Mile END Road Management Limited | Real estate | 1994 |
| 427 Fulham Palace Road Management LLP | | 2010 |
| 427 Hardtops Limited | Manufacturing | 2021 |
| 427/429 Merton Road Management Limited | Households | 2017 |
| 428 Associates Ltd | Construction | 2018 |
| 428 Hackney Road Limited | Real estate | 2005 |
| 428 Homes Ltd | Real estate | 2023 |
| 429 Digital Consulting Ltd | Information & communication | 2025 |
| 429-431 Fulham Palace Road Limited | Households | 2021 |
| 429E Ltd | Administrative & support | 2025 |
| 42ASHBOURNE Limited | Health & social care | 2017 |
| 42BD Ltd | Wholesale & retail | 2025 |
| 42CH Freehold Limited | Households | 2026 |
| 42CLINICS Ltd | Extraterritorial | 2024 |
| 42COMERAGHFH Limited | Real estate | 2025 |
| 42COURSES.COM Limited | Other services | 2015 |
| 42DL Ltd | Hospitality | 2021 |
| 42DL Management Ltd | Hospitality | 2021 |
| 42GR Ltd | Real estate | 2021 |
| 42IQ Ltd | Administrative & support | 2013 |
| 42M Limited | Information & communication | 2021 |
| 42MARU Limited | Information & communication | 2019 |
| 42NATE Ltd | Professional & scientific | 2024 |
| 42ND Street 2023 Ltd | Arts & recreation | 2022 |
| 42ND Street Capital Limited | Real estate | 2024 |
| 42ND Universe Ltd | Information & communication | 2022 |
| 42NE Ltd | Information & communication | 2020 |
| 42SC Ltd | Real estate | 2020 |
| 42SNKRS Limited | Wholesale & retail | 2025 |
| 42WM Ltd | Real estate | 2018 |
| 43 & 43A Duntshill Limited | Real estate | 2017 |
| 43 - 48 Hargrave Mansions Limited | Households | 2007 |
| 43 Abbotsford Avenue Limited | Households | 2017 |
| 43 Alkham Road Limited | Households | 2010 |
| 43 Arlesford Road Limited | Households | 2020 |
| 43 Arlington Gardens Limited | Households | 2008 |
| 43 Augustus Road Freehold Limited | Households | 2006 |
| 43 Aylesford Street Limited | Real estate | 2007 |
| 43 Beech Hill Management Company Ltd | Real estate | 2013 |
| 43 Bellenden Road RTM Company Limited | Households | 2025 |
| 43 Belmont Avenue (Management Company) Limited | Households | 2023 |
| 43 Berkeley Square (London) Ltd | Hospitality | 2022 |
| 43 BG Ltd | Real estate | 2015 |
| 43 Birch Grove Management Limited | Households | 2017 |
| 43 Blandford Street Holdings Limited | Professional & scientific | 2008 |
| 43 Bramham Gardens SW5 Management Co. Limited | Households | 1982 |
| 43 Brighton Road (Purley) Ltd | Households | 2018 |
| 43 Broadhurst Gardens Limited | Households | 2003 |
| 43 Brookville Road Limited | Extraterritorial | 2006 |
| 43 Cambridge Road South Freehold Limited | Real estate | 2009 |
| 43 Cathcart Road Residents Company Limited | Households | 1998 |
| 43 Cautley Avenue Management Limited | Real estate | 2009 |
| 43 Church Crescent Management Limited | Households | 2021 |
| 43 Coldershaw Road (Freehold) Limited | Households | 2008 |
| 43 Colebrooke ROW (Management) Limited | Households | 1980 |
| 43 Compayne Gardens Management Company Limited | Real estate | 1988 |
| 43 Coolhurst Road Limited | Professional & scientific | 2013 |
| 43 Craven Road Ltd | Real estate | 2026 |