| 1 Gift Ltd | Wholesale & retail | 2023 |
| 1 Stop Health Limited | Health & social care | 2014 |
| 110 Network Ltd | Wholesale & retail | 2025 |
| 115 Ventures LLP | | 2021 |
| 184 Upper Richmond Road West (Freehold) Limited | Households | 2006 |
| 214 Bermondsey Street Limited | Real estate | 2008 |
| 24 & More Ltd | Professional & scientific | 2024 |
| 2507AYTEE Consultants Ltd | Information & communication | 2025 |
| 2612 Consulting Ltd | Information & communication | 2020 |
| 2B Live Limited | Administrative & support | 2010 |
| 2R Holdings Limited | Financial services | 2025 |
| 2WENTY47 Limited | Construction | 2008 |
| 31 Church Road NO 1 Limited | Real estate | 2024 |
| 31 Church Road NO 2 Limited | Real estate | 2024 |
| 31 Church Road NO 3 Limited | Real estate | 2024 |
| 31 Sedlescombe Road Limited | Extraterritorial | 1997 |
| 4 Lyall Street Limited | Real estate | 1998 |
| 4 UK Properties Ltd | Real estate | 2025 |
| 4FINANCE Ltd | Professional & scientific | 2020 |
| 4MSQUARED Properties Limited | Real estate | 2017 |
| 4SMS Properties Limited | Real estate | 2017 |
| 4TH Dimension Innovation Limited | Financial services | 2003 |
| 4WIN Properties Limited | Real estate | 2021 |
| 4X Capital Ltd | Wholesale & retail | 2018 |
| 57 Tremadoc Road Limited | Hospitality | 2000 |
| 60 Salford Road Limited | Households | 2008 |
| 7 Stags Group Limited | Professional & scientific | 2025 |
| 7 Victoria Street Residents Company Limited | Households | 2007 |
| 7BELIEFS Investment Ltd | Real estate | 2021 |
| 89 Erpingham Road Limited | Professional & scientific | 1964 |
| A a Reclaim Ltd | | 2015 |
| A Alvarez Services Ltd | Wholesale & retail | 2011 |
| A Blue Cedar Ltd | Financial services | 2025 |
| A Carter Construction Ltd | Manufacturing | 2019 |
| A Long Journey Ltd | Administrative & support | 2024 |
| A Real Estate IS NOT Limited | Hospitality | 2021 |
| A&A Operations Ltd | Construction | 2023 |
| A&A Property Investments Ltd | Real estate | 2022 |
| A&A Real Estate Trading Company Ltd | Real estate | 2021 |
| A&H Eco Ltd | Construction | 2024 |
| A&K Rent Ltd | Real estate | 2025 |
| A&M Timeless Ltd | Financial services | 2021 |
| A&S Investments PVT Ltd | Real estate | 2024 |
| A. C. Cossor & Son(Surgical) Limited | Manufacturing | 1958 |
| A.L. Tozer Holdings Limited | Financial services | 2024 |
| A.P. Diesels Limited | Manufacturing | 1978 |
| A.P. Window Cleaning Limited | Administrative & support | 2022 |
| A.S.H Elite Equine Ltd | Administrative & support | 2014 |
| A.V Nails Egham Ltd | Other services | 2019 |
| A3R Limited | Other services | 2020 |
| Aaarav Ltd | Real estate | 2025 |
| Aastar Enterprises Limited | Hospitality | 2021 |
| AB Incentiveco Limited | Financial services | 2021 |
| Abad & Sons Ltd | Hospitality | 2024 |
| Abakus Invest PLC | Professional & scientific | 2020 |
| Abakus Management Ltd | Professional & scientific | 2017 |
| Able Driver Hire Limited | Transport & logistics | 2017 |
| Able One Finance Limited | Real estate | 2004 |
| Able One Ltd | Real estate | 2025 |
| Abrahams Securities Limited | Professional & scientific | 1990 |
| Absolute Living Developments Ltd | Other services | 2013 |
| ACC Investments Ltd | Real estate | 2020 |
| Accelerate Group Limited | Administrative & support | 2018 |
| Accident Repairs Heathrow (ARH) Ltd | Wholesale & retail | 2014 |
| Accomplish Real Estate Ltd | Real estate | 2022 |
| Accuco Limited | Professional & scientific | 2005 |
| Acer Design Limited | Arts & recreation | 1993 |
| Achieve Lifestyle | Arts & recreation | 2010 |
| Aconter Limited | Professional & scientific | 2015 |
| Acorn Play Therapy Limited | Health & social care | 2015 |
| Acornel UK Ltd | Education | 2012 |
| Acronym Properties Ltd | Real estate | 2025 |
| Acroridge Ltd | Information & communication | 2025 |
| Active Management Facilities Limited | Transport & logistics | 2018 |
| ADA Barbers Ltd | Other services | 2016 |
| Adam 2012 Ltd | Hospitality | 2024 |
| Adams Bookkeeping Ltd | Professional & scientific | 2014 |
| Adaptatech Services Limited | Professional & scientific | 2005 |
| Add-It-Up Ltd | Professional & scientific | 2020 |
| Addvalueworks Ltd | Real estate | 2025 |
| Advertytics Ltd | Financial services | 2021 |
| Aero-Nautic Holding Ltd | Professional & scientific | 2020 |
| Afan Valley Holidays Ltd | Hospitality | 2022 |
| Affix Ltd | Construction | 2023 |
| Affluence Properties Ltd | Households | 2021 |
| Aframe Properties Ltd | Real estate | 2021 |
| Africa Sustainable Forestry Partners II LP | | 2017 |
| Africa Wild Nature Ltd | Financial services | 2021 |
| Afterthird Limited | Administrative & support | 2020 |
| Afusion Finance Ltd | Construction | 2025 |
| AG Arts & Co. Limited | Wholesale & retail | 2011 |
| Agaame Limited | Information & communication | 2024 |
| Agency DNA Limited | Information & communication | 2009 |
| AGM Electronic World Ltd | Wholesale & retail | 2013 |
| AGS Property Ventures Ltd | Real estate | 2018 |
| Ahgr Limited | Extraterritorial | 2001 |
| AI Quantum Robotics Ltd | Professional & scientific | 2023 |
| AIM 27 Ltd | Other services | 2024 |
| Aivien Property Investment Ltd | Real estate | 2021 |
| Ajaw Cleaning Services Ltd | Administrative & support | 2013 |