| 43 Russell Road Management Company Limited | Households | 1998 |
| 45-49 Nicoll Road Management Company Limited | Households | 1997 |
| 45/47 Elgin Crescent Freehold Company Limited | Real estate | 2004 |
| 47 Poets Road Management Limited | Households | 1988 |
| 4CITYCLEAN Ltd | Administrative & support | 2016 |
| 4NC¥ Ltd | Information & communication | 2020 |
| 4S Investments Limited | Households | 2020 |
| 5 Colville Terrace Management Limited | Households | 1990 |
| 5 Macroom Road RTM Company Limited | Households | 2021 |
| 52 Hencroft Street South Block Management Limited | Households | 2017 |
| 54 ST Mary Abbot's Court Ltd | Real estate | 2024 |
| 56/58 Ledgers Road Management Co. Limited | Households | 2005 |
| 57/59 Canonbury Park North Limited | Households | 2006 |
| 59-67 Brooksby Street Limited | Households | 2019 |
| 5EMEDIA Ltd | Professional & scientific | 2016 |
| 5KCO Limited | Professional & scientific | 2024 |
| 6 Belsize Crescent NW3 Ltd | Households | 2025 |
| 6 Ladbroke Gardens Management Limited | Households | 2001 |
| 6 Monmouth Place Residents Association Limited | Households | 1995 |
| 6 VIP Limited | Administrative & support | 2024 |
| 60-62 Company Limited | Households | 1994 |
| 63 Kensington Gardens Square Management Limited | Households | 1988 |
| 65 Queens Gardens Limited | Households | 1996 |
| 67 Windsor Road Management Company Limited | Households | 2023 |
| 6TEN Consulting Ltd | Construction | 2024 |
| 7 Cheniston Gardens Limited | Extraterritorial | 2006 |
| 7 Hill Delivery Services Limited | Transport & logistics | 2018 |
| 7 Screen Limited | Information & communication | 2023 |
| 7 to 12 ST Mary's Mansions Limited | Hospitality | 1995 |
| 7-12 Sylvan Court RTM Company Limited | Households | 2020 |
| 70 Welldon Ltd | Real estate | 2022 |
| 78 Fordwych Road RTM Company Ltd | Households | 2021 |
| 78 Tontine Street Ltd | Real estate | 2022 |
| 79 Bloc Ltd | Households | 2018 |
| 7:49 Limited | Other services | 2017 |
| 7TH Sense Solutions Limited | Information & communication | 2009 |
| 8 Pembridge Crescent Freehold Limited | Real estate | 2013 |
| 84 Victoria Road N22 RTE Company Limited | Households | 2013 |
| 85 Park Walk RTM Ltd | Real estate | 2010 |
| 87 Consult Limited | Administrative & support | 2022 |
| 87-89 Paul Street Management Company Limited | Households | 1999 |
| 9 Avebury Court Ltd | Real estate | 2023 |
| 9 Brockwell Park ROW Limited | Real estate | 2007 |
| 92 and 94 Fordwych Road Management Company Limited | Households | 1987 |
| 95 Goldhawk Co-Living Limited | Construction | 2025 |
| 95 Gordon Avenue Limited | Real estate | 2013 |
| 96 Million Limited | Transport & logistics | 2023 |
| 97 Station Road Ltd | Other services | 2011 |
| A & Darius Ltd | Construction | 2025 |
| A & H Management Services Limited | Information & communication | 2005 |
| A & J Keane Construction Ltd | Construction | 2009 |
| A & K Infinite Ltd | Wholesale & retail | 2025 |
| A & N Company(Private) Ltd | Wholesale & retail | 2025 |
| A & N Installation Limited | Construction | 2025 |
| A & R Accountancy Services Limited | Professional & scientific | 2016 |
| A & R Consulting Services Limited | Professional & scientific | 2013 |
| A & R Horizon Developments Ltd | Real estate | 2017 |
| A & R Partners LLP | | 2010 |
| A & Y Fitting Sout Limited | Hospitality | 2023 |
| A & Z Media Ltd | Information & communication | 2025 |
| A 1 Evolution Group Ltd | Wholesale & retail | 2020 |
| A and M Security Service Ltd | Administrative & support | 2025 |
| A Bigger Splash Limited | Professional & scientific | 2004 |
| A C F (Truck Parts) Ltd | Wholesale & retail | 2010 |
| A F I (Haringey) Limited | Real estate | 2020 |
| A F I (Wandsworth) Limited | Real estate | 2020 |
| A Foods Ltd | Hospitality | 2018 |
| A I Productions Limited | Extraterritorial | 2017 |
| A J Security Limited | Public administration | 2023 |
| A M Domestic Constructions Ltd | Construction | 2023 |
| A One World Ltd | Wholesale & retail | 2020 |
| A P Investment Holdings Limited | Real estate | 2020 |
| A P S P Ltd | Construction | 2025 |
| A Parvez Limited | Other services | 2010 |
| A Perfect Pocket Limited | Information & communication | 2013 |
| A Resilient Future Ltd | Professional & scientific | 2026 |
| A Squared Building Ltd | Construction | 2025 |
| A&A Health Ltd | Health & social care | 2023 |
| A&A London Group Ltd | Wholesale & retail | 2020 |
| A&A Rail Engineering Ltd | Construction | 2016 |
| A&C Care Limited | Other services | 2017 |
| A&D Removals Limited | Transport & logistics | 2025 |
| A&D Services Ltd | Water & waste | 2025 |
| A&H Fruit and VEG Limited | Wholesale & retail | 2025 |
| A&M 2 Limited | Real estate | 2026 |
| A&N Jain Holdings Ltd | Financial services | 2023 |
| A&O Homes Ltd | Real estate | 2024 |
| A&S Investments Ltd | Real estate | 2022 |
| A&T Rendering Limited | Construction | 2016 |
| A. Fersht Limited | Real estate | 1947 |
| A.C. Eimer Ltd | Wholesale & retail | 2013 |
| A.I.S.N Limited | Financial services | 2004 |
| A.L.F. Metalcraft Ltd | Manufacturing | 2018 |
| A1 Energy Invest Limited | Mining & quarrying | 2018 |
| A1 Energy Limited | Manufacturing | 2018 |
| A1 IT Consultancy Ltd | Information & communication | 2017 |
| A1 Pro Design Ltd. | Construction | 2015 |
| A2B Connect Ltd | Transport & logistics | 2019 |
| AA Brothers Auto Limited | Wholesale & retail | 2024 |
| AA Global Construction Ltd | Construction | 2023 |