| 'Building' Integrated Developments Ltd | Construction | 2026 |
| 'Building' Integrated Services Limited | Construction | 2011 |
| 1 - 12 Chequers Court RTM Company Ltd | Households | 2026 |
| 1 Caerau Crescent Management Ltd | Households | 2023 |
| 1-13 Penstock Drive RTM Company Ltd | Households | 2024 |
| 1-16 Tattershall Court RTM Company Ltd | Households | 2024 |
| 1-51 Hartley Court RTM Company Ltd | Households | 2025 |
| 100 Old Woolwich Road RTM Company Ltd | Households | 2019 |
| 108 the Bakery Limited | Manufacturing | 2023 |
| 119 Cheam Road RTM Company Ltd | Households | 2020 |
| 119 Cheam Road Sutton Limited | Households | 1983 |
| 12 - 22 Patricia Road RTM Company Ltd | Households | 2026 |
| 123 Business Services Ltd | Financial services | 2011 |
| 13 Atherfold Road RTM Company Limited | Households | 2019 |
| 138 Sinclair Road Limited | Households | 1998 |
| 14-31 Penstock Drive RTM Company Ltd | Households | 2024 |
| 142 ST. Albans Road RTM Company Ltd | Households | 2025 |
| 146/148 Shirley Road Management Company Limited | Households | 2026 |
| 15778113 Limited | Financial services | 2024 |
| 164.5 SPV Ltd | Real estate | 2019 |
| 167 Hornsey Road RTM Company Ltd | Households | 2026 |
| 17-34 Tattershall Court RTM Company Ltd | Households | 2024 |
| 176SPORT Limited | Professional & scientific | 2022 |
| 18 Lemsford Road Limited | Households | 2009 |
| 1876 Limited | Professional & scientific | 2022 |
| 19 Whytecliffe Road South RTM Company Ltd | Households | 2023 |
| 1A Grenfell Road RTM Company Ltd | Households | 2017 |
| 1ST Take Action Drivers Limited | Administrative & support | 2019 |
| 2 Belle VUE Square RTM Company Ltd | Households | 2026 |
| 2 Carshalton Road RTM Company Ltd | Households | 2025 |
| 2 Portersbridge Mews Romsey Limited | Households | 2021 |
| 2-4 Bedford Place RTM Company Limited | Households | 2007 |
| 20 Sackville Street Management Company Limited | Households | 2008 |
| 214 Hammersmith Grove Freehold Limited | Administrative & support | 2012 |
| 22 Albany Road RTM Company Ltd | Households | 2025 |
| 22 Harmer Street RTM Company Limited | Households | 2013 |
| 23 Wilton Crescent Freehold Ltd | Households | 2023 |
| 24 7 Living UK Limited | Professional & scientific | 2016 |
| 24 Rosebery Gardens RTM Company Ltd | Households | 2026 |
| 2RSYSTEMS Ltd | Manufacturing | 2022 |
| 3 AIM Services Limited | Health & social care | 2019 |
| 3 Russell Hill RTM Company Ltd | Households | 2026 |
| 32-37 Penstock Drive RTM Company Ltd | Households | 2024 |
| 34-36 Coombe Road RTM Company Ltd | Households | 2022 |
| 38-55 Penstock Drive RTM Company Ltd | Households | 2024 |
| 399 Edgware Road RTM Company Limited | Households | 2022 |
| 3A Project Services Ltd | Professional & scientific | 2024 |
| 3H Medical Limited | Health & social care | 2008 |
| 4 Electrical Northern Limited | Construction | 2025 |
| 4 Electrical Services (UK) Ltd | Construction | 2017 |
| 4 Nature Catering Services Limited | Hospitality | 2018 |
| 4 Tools Ltd | Wholesale & retail | 2026 |
| 4 X 4 Hire Limited | Administrative & support | 1991 |
| 405-417 Lordship Lane RTM Company Ltd | Households | 2026 |
| 45 Kelly Avenue RTM Company Limited | Households | 2009 |
| 48 Rectory Grove RTM Company Limited | Households | 2013 |
| 49 England's Lane Limited | Real estate | 2022 |
| 4X4 Services Limited | Professional & scientific | 1985 |
| 5 Clarendon Street (Residents) Limited | Households | 1987 |
| 5-15 Barrington Drive RTM Company Limited | Households | 2012 |
| 50 Properties Southampton Limited | Real estate | 2017 |
| 51-53 Schubert Road SW15 2QT Limited | Households | 2019 |
| 52 Conyers Road RTM Company Limited | Households | 2014 |
| 52 Westcourt Road RTM Company Limited | Households | 2012 |
| 52-67 Hartley Court RTM Company Ltd | Households | 2024 |
| 56-79 Penstock Drive RTM Company Ltd | Households | 2024 |
| 57 Whiteley Road (Management) Limited | Households | 1974 |
| 6 Darwin Road (Southampton) Limited | Households | 1999 |
| 61-63 Quentin Road RTM Company Limited | Households | 2011 |
| 68-85 Hartley Court RTM Company Ltd | Households | 2024 |
| 70-72 WBT Ltd | Construction | 2025 |
| 72 Milton Grove RTM Company Limited | Households | 2014 |
| 75 Heyford Avenue RTM Company Limited | Households | 2011 |
| 78 Gloucester Street (Freehold) Limited | Households | 2015 |
| 8 & 9 Estreham Road RTM Company Limited | Households | 2012 |
| 80 Tollington Park RTM Company Limited | Households | 2013 |
| 9 Comeragh Road Limited | Households | 1998 |
| 99 Dawes Road Management Ltd | Administrative & support | 2013 |
| A & N Pandya Medical Services Limited | Health & social care | 2014 |
| A F Drivers Limited | Administrative & support | 2023 |
| A Fitting Choice Ltd | Professional & scientific | 2009 |
| A G Cunningham Consulting Ltd | Financial services | 2010 |
| A Mccormick Anaesthesia Limited | Health & social care | 2020 |
| A Moment of Silence Ltd | Manufacturing | 2020 |
| A Neat PUB Company Ltd | Hospitality | 2019 |
| A Place Like Home Ltd | Real estate | 2018 |
| A R Doyle Limited | Health & social care | 2004 |
| A to Z Project Services Ltd | Wholesale & retail | 2016 |
| A&B Corcoran Ltd | Health & social care | 2024 |
| A&C Goodson Limited | Health & social care | 2022 |
| A&E Drainage and Plumbing Ltd | Construction | 2025 |
| A&F Prime Care Ltd | Administrative & support | 2017 |
| A&K Medical Limited | Health & social care | 2021 |
| A&S Health Ltd | Health & social care | 2022 |
| A&Vcommerce Ltd | Wholesale & retail | 2024 |
| A-2-SEA Solutions Limited | Information & communication | 1996 |
| A-C Canalside Gardens RTM Company Ltd | Households | 2022 |
| A.C.T. Distribution Limited | Wholesale & retail | 2009 |
| A.Farrell.Events Ltd | Administrative & support | 2026 |
| A.H. Cheater Limited | Other services | 2010 |