| 1-6 Benjamin Court (Freehold) Company Limited | Real estate | 2014 |
| 1-6 Benjamin Court Company Limited | Real estate | 2022 |
| 129 Anyards Road Ltd | Real estate | 2023 |
| 17 Investments Limited | Real estate | 2025 |
| 172 Ewell Road Managements Limited | Real estate | 1987 |
| 174 Automotive Limited | Wholesale & retail | 2022 |
| 19 Consult Limited | Information & communication | 2020 |
| 19 Corporate Finance Limited | Professional & scientific | 2012 |
| 2-8 Copse Road Limited | Households | 2009 |
| 22 Jenner Road Management Company Limited | Real estate | 2011 |
| 29 Cranfield Road Limited | Households | 2020 |
| 2H2C Ltd | Construction | 2026 |
| 30 and 31 Bolton Gardens Management Company Limited | Households | 1987 |
| 30 Greenlane Management Limited | Real estate | 2021 |
| 30 Stanlake Road, London W12 Limited | Extraterritorial | 1986 |
| 36-ZEROTECH Ltd | Information & communication | 2021 |
| 360 RX Ltd | Public administration | 2020 |
| 38 Twinoaks Ltd | Construction | 2023 |
| 4 Season Roofing Limited | Construction | 2018 |
| 40CG Freehold Limited | Households | 2017 |
| 41/43 Fairmile Lane Management Limited | Households | 2006 |
| 67 Harcourt Terrace Limited | Administrative & support | 1997 |
| 68-74 Effingham Road Residents Management Company Limited | Households | 2004 |
| 7 Old Town Limited | Construction | 2016 |
| 80SIX Group Ltd | Information & communication | 2025 |
| 80SIX Holdings Ltd | Administrative & support | 2025 |
| 80SIX Productions Ltd | Information & communication | 2020 |
| 83 Abingdon Road Property Company Limited | Real estate | 1997 |
| A British Legend Limited | Other services | 2019 |
| A Davies Carpentry & Joinery Ltd | Administrative & support | 2017 |
| A Herbert Tree Services Ltd | Administrative & support | 2026 |
| A Horn Limited | Health & social care | 1986 |
| A Star BIZ Solutions Ltd | Professional & scientific | 2021 |
| A&N Prime Property Ltd | Real estate | 2026 |
| A-Train Productions Limited | Arts & recreation | 2011 |
| A-Z Construction UK Limited | Construction | 1995 |
| A.E.Monk & Co.(London)Limited | Real estate | 1931 |
| A2Z Connect Ltd | Wholesale & retail | 2019 |
| AAJ Cobham Fencing Ltd | Administrative & support | 2021 |
| Aarava Ltd | Professional & scientific | 2019 |
| AB9 Holdings Limited | Arts & recreation | 2022 |
| ABA Lets Ltd | Real estate | 2022 |
| Abarim Limited | Real estate | 2002 |
| ABC Repairs Limited | Wholesale & retail | 2020 |
| Abc-Ot Ltd. | Education | 2013 |
| ABG T & L Ltd | Administrative & support | 2022 |
| Abode Bespoke Home Ltd | Other services | 2019 |
| AC Dynamic Solution Ltd | Administrative & support | 2024 |
| AC Photography Ltd. | Professional & scientific | 2017 |
| Accountlets Property Management Limited | Real estate | 2001 |
| Aces Enterprise Ltd | Information & communication | 2019 |
| Acinaci Limited | Professional & scientific | 2014 |
| ACR Financial Consulting Limited | Professional & scientific | 2022 |
| Acrux Gold Investco Limited | Financial services | 2025 |
| Acrux Gold Limited | Financial services | 2025 |
| ACS Comply Ltd | Information & communication | 2023 |
| ACT Portfolio Holdings Ltd | Financial services | 2026 |
| ACT Property Oxfordshire and Berkshire Limited | Administrative & support | 2020 |
| ACT Property Services Ltd | Information & communication | 2010 |
| Active 4X4 Adventures Ltd | Administrative & support | 2024 |
| Acuity UK Limited | Administrative & support | 2006 |
| Adam Music Limited | Arts & recreation | 2019 |
| Adkick Ltd | Administrative & support | 2017 |
| Adnaan Ahmad Research Ltd | Professional & scientific | 2016 |
| Adrenaline Marketing Fuel Ltd | Administrative & support | 2019 |
| Aduenam International Ltd | Wholesale & retail | 2026 |
| Advokat Urban Olson Limited | Professional & scientific | 2001 |
| Aetos Homes (Surrey) Ltd | Construction | 2025 |
| Aetos Homes Ltd | Construction | 2021 |
| Afternoon Crumbs Limited | Arts & recreation | 2014 |
| Agency 5 Ltd | Professional & scientific | 2024 |
| AGL Consultancy Limited | Manufacturing | 2003 |
| Air Research Limited | Professional & scientific | 1999 |
| AIS Group Enterprise Ltd | Transport & logistics | 2025 |
| Aisetas Limited | Professional & scientific | 2018 |
| AJW Capital Limited | Real estate | 2025 |
| Aktiebolaget T.H. Lapidus | | 1979 |
| Aladin Partners Ltd | Information & communication | 2016 |
| Alamanda Fashion Ltd | Wholesale & retail | 2025 |
| Alan Reilly Limited | Wholesale & retail | 1983 |
| Alchemy Capital Limited | Financial services | 2014 |
| Alchemy Consultants London Limited | Administrative & support | 2016 |
| Alchemy Equipment Finance Ltd | Financial services | 2014 |
| Alchemy Finance Ltd | Financial services | 2012 |
| Alchemy Social Impact (UK) Limited | Construction | 2025 |
| Alchemy Social Impact Limited | Professional & scientific | 2025 |
| Alefa Travel Ltd | Administrative & support | 2019 |
| Alex Morris Tennis Limited | Arts & recreation | 2025 |
| Alex Truesdale Wills Limited | Professional & scientific | 2010 |
| Alexis Accounting Ltd | Professional & scientific | 2014 |
| Aleya Innovations Limited | Information & communication | 2025 |
| Alfagates Services Limited | Administrative & support | 2014 |
| ALH Beauty Limited | Wholesale & retail | 2025 |
| Allied Capital Invest Limited | Financial services | 2006 |
| Alpha Four Keys Limited | Wholesale & retail | 2024 |
| Alpha Oaks Limited | Administrative & support | 2017 |
| Alpha Tree Care Ltd | Agriculture & fishing | 2015 |
| Alsford Timber Limited | Wholesale & retail | 1993 |
| Alsos Ltd | Information & communication | 2007 |
| Alton House Finance Limited | Professional & scientific | 1971 |