| 7 Thomson Road Ltd | Real estate | 2019 |
| 70 Lensbury Way Limited | Real estate | 2021 |
| 71 and 71A Craneford Way Freehold Company Limited | Households | 2007 |
| 72 Hunters Grove Management Limited | Households | 2006 |
| 73 Gresham Road Limited | Professional & scientific | 2004 |
| 74-80 Herga Road Limited | Households | 1993 |
| 76 Mount Ararat Road Management Company Limited | Households | 1978 |
| 786 Capricorn Limited | Wholesale & retail | 2005 |
| 84 Green Lane Limited | Households | 2001 |
| 85 Boston Manor Road (Management) Limited | Professional & scientific | 2004 |
| 86,HAMPTON Road Lessees Limited | Households | 1963 |
| 888 Systems Limited | Information & communication | 2000 |
| 8AIN Limited | Information & communication | 1989 |
| 9 Edith Grove Management Company Limited | Households | 2007 |
| 90 Park View Share of Freehold Limited | Households | 2021 |
| 95 Queens Road (Teddington) Limited | Households | 2005 |
| 999 Services Limited | Wholesale & retail | 1999 |
| A & B K Limited | Professional & scientific | 2005 |
| A & G Windows Limited | Manufacturing | 2003 |
| A & L Accounting Limited | Professional & scientific | 2004 |
| A & M H.G.V. Resources Limited | Professional & scientific | 2004 |
| A & N Krystal Limited | Construction | 2004 |
| A & P Properties Limited | Real estate | 1995 |
| A and a Sons Limited | Wholesale & retail | 2007 |
| A Butler Roofing & General Building Ltd | Construction | 2025 |
| A C H Construction Limited | Wholesale & retail | 2007 |
| A D M Business Services Limited | Professional & scientific | 2004 |
| A D Swindon Jewellers Limited | Manufacturing | 2006 |
| A Ibrahim Limited | Transport & logistics | 2003 |
| A M S Plumbing & Heating Ltd | Construction | 2005 |
| A P & Associates Limited | Professional & scientific | 1997 |
| A R Autocentre Ltd | Wholesale & retail | 2006 |
| A Y Direct Propeties Ltd | Real estate | 2026 |
| A&D Building (London) Ltd | Construction | 2024 |
| A&F NET Solutions Limited | Information & communication | 2017 |
| A-Spire Business Partners Ltd | Professional & scientific | 2003 |
| A. C. Curd (Isleworth) Limited | Wholesale & retail | 1985 |
| A. R. DRY Cleaners Ltd | Other services | 2016 |
| A. Sullivan (Builders) Limited | Construction | 1986 |
| A. Wilkie Project Management Services Ltd | Professional & scientific | 2007 |
| A.A. Electrical Installations Services Limited | Construction | 2003 |
| A.B.C. Surveys Limited | Professional & scientific | 2005 |
| A.B.C. Roofing Limited | Construction | 1998 |
| A.Denton(Builders)Limited | | 1964 |
| A.I. Media Limited | Information & communication | 2002 |
| A.J. Retter Limited | Professional & scientific | 1997 |
| A.M.K. Maintenance Services Ltd | Manufacturing | 2007 |
| A.S.R. Construction UK Limited | Construction | 2001 |
| A.T Construction NO.1 Ltd | Construction | 2025 |
| A.T.C. Management Limited | Professional & scientific | 1991 |
| A.V.S. Accountancy Limited | Professional & scientific | 2000 |
| A1 Furniture England Limited | Wholesale & retail | 1985 |
| A1 Grade Tutors Ltd | Education | 2002 |
| A1 Office & Computers Supplies Limited | Wholesale & retail | 2006 |
| A10 Glass Limited | Construction | 2005 |
| A2 Ivest Limited | Professional & scientific | 2020 |
| A2B Bachata Academy Ltd | Education | 2023 |
| A2D Limited | Administrative & support | 2007 |
| A2HKNIVES Ltd | Wholesale & retail | 2025 |
| AA Atelier Ltd | Administrative & support | 2017 |
| AA Turkish Interpreting Translating and Language Consultancy Limited | Professional & scientific | 1998 |
| Aarmon Consulting Limited | Professional & scientific | 2005 |
| Aarti Properties Limited | Real estate | 2004 |
| Aarti Sarees Limited | Wholesale & retail | 1989 |
| AAS Gold UK Limited | Wholesale & retail | 2006 |
| Abaci Accountancy Limited | Administrative & support | 1998 |
| Abacus Accountancy Services Limited | Professional & scientific | 1989 |
| Abacus Accounting Solutions Limited | Professional & scientific | 2003 |
| Abbey Coachworks (Holdings) Limited | Financial services | 2000 |
| Abbey Coachworks Limited | Wholesale & retail | 1989 |
| Abbeydart Limited | | 1992 |
| Abbeyfield Uxbridge Society Limited(The) | Hospitality | 1974 |
| Abbeyoak Properties Limited | Construction | 1987 |
| Abbeyside Films Limited | Arts & recreation | 2008 |
| Abbots House Management Limited | Real estate | 2000 |
| Abby-Ray Trading Co.Limited | | 1968 |
| ABC Cars Kensington Ltd | Transport & logistics | 2009 |
| ABC2SUCCESS Limited | Education | 2000 |
| Abcot U.K. Limited | Wholesale & retail | 1997 |
| Abimen UK Limited | Wholesale & retail | 2014 |
| Abingdon Lodge (Rustington) Ltd | Administrative & support | 2005 |
| Ablespot Limited | Real estate | 1988 |
| Ablett Properties Limited | Construction | 1978 |
| Ablewhite Ltd | Wholesale & retail | 2002 |
| ABM Aviation UK Limited | Transport & logistics | 2003 |
| ABM Critical Solutions Limited | Administrative & support | 1991 |
| ABM Facility Services UK Limited | Administrative & support | 1997 |
| ABM Group UK Limited | Administrative & support | 1986 |
| ABM International (Holdings) Limited | Financial services | 2014 |
| ABM Technical Solutions Limited | Other services | 2000 |
| ABO Software Ltd | Information & communication | 2008 |
| Abrb Developments Limited | Construction | 2026 |
| Absolute Electronics Limited | Other services | 1991 |
| Absolute Garments Limited | Wholesale & retail | 2003 |
| Abubakr Apartments Ltd | Real estate | 2023 |
| Accident Claim Management Ltd | Financial services | 2019 |
| Acclaim Pallet Express Limited | Transport & logistics | 2004 |
| Accordant Limited | Professional & scientific | 1998 |
| Accordis Limited | Information & communication | 2005 |
| Accountancy Management Services Limited | Professional & scientific | 1999 |