| 00062246 PLC | Education | 1899 |
| 108 Guildford Street Ltd | Real estate | 2012 |
| 128 Caversham Road Management Company Ltd | Real estate | 2025 |
| 14 Gironde Road Management Limited | Real estate | 1996 |
| 15 Bellevue Clifton (Management) Limited | Households | 1978 |
| 24 Windsor Street Limited | Households | 2008 |
| 247 Media Limited | Professional & scientific | 2000 |
| 272 Consulting Limited | Professional & scientific | 2022 |
| 2M Transport Ltd | Wholesale & retail | 2026 |
| 2ND Chance Items Ltd | Manufacturing | 2019 |
| 3-7 Byfleet TC Manco Limited | Administrative & support | 2022 |
| 33 Windsor Street (Flats) Limited | Households | 2019 |
| 3N3R6Y Limited | Construction | 2024 |
| 4C Growth Limited | Professional & scientific | 2024 |
| 4C Prestige Limited | Wholesale & retail | 2017 |
| 4KV Health Care Ltd | Health & social care | 2020 |
| 537 Staines Road Management Ltd | Households | 2025 |
| 73 Masbro Road Ltd | Households | 2026 |
| 8.2 West Tower Limited | Real estate | 2023 |
| A & K Potash Accounting Services Limited | Professional & scientific | 2002 |
| A & S Cleaning Services Ltd | Administrative & support | 2021 |
| A 1 Construction (PVT) Ltd | Construction | 2019 |
| A B Creative Limited | Administrative & support | 2010 |
| A G C Accountancy Ltd | Professional & scientific | 2010 |
| A Zulfi Practitioners Ltd | Health & social care | 2018 |
| A&S Consulting Services Ltd | Professional & scientific | 2024 |
| A&S Developers (UK) Limited | Construction | 2021 |
| A. Alvarez Catering Ltd | Health & social care | 2018 |
| A.E. Genet Holdings Limited | Real estate | 1972 |
| A.E. Genet Surrey Limited | Construction | 2024 |
| A.I. International Laminates Limited | Extraterritorial | 1980 |
| A1 Services (Chertsey) Limited | Transport & logistics | 2015 |
| AAA Roofing & Guttering Ltd | Construction | 2025 |
| Aasia Limited | Transport & logistics | 2022 |
| AB Plumbing & Heating Limited | Construction | 2008 |
| Abbey Chase Properties Limited | Real estate | 2025 |
| Abbeyfields Buildings Limited | Construction | 2025 |
| Abbeymead Property Services Limited | Real estate | 2007 |
| ABC Project Mastery Ltd | Other services | 2019 |
| Ablest Ltd | Real estate | 2018 |
| ABS Security Systems Ltd. | Construction | 1997 |
| ABS Venture Limited | Real estate | 2022 |
| Abstract Solutions Ltd | Information & communication | 2010 |
| Abysmstudios Ltd | Other services | 2026 |
| AC & GS Management Limited | Households | 2018 |
| AC Installs Limited | Construction | 2019 |
| AC Motor Sales Ltd | Wholesale & retail | 2025 |
| Accel Infotec Limited | Information & communication | 2019 |
| Accountancy Tax and Audit Limited | Administrative & support | 2014 |
| ACL 28 Ltd | Financial services | 2024 |
| Acme General Trading Limited | Wholesale & retail | 2018 |
| Acme UK Inc Limited | Manufacturing | 2018 |
| Active Fire Systems Ltd | Other services | 2022 |
| Active Sparks UK Ltd | Health & social care | 2025 |
| AD Russell Ltd | Administrative & support | 2024 |
| Adbo Limited | Professional & scientific | 2015 |
| Adonnelly Driving Services Limited | Transport & logistics | 2019 |
| ADP Transport and Recovery Ltd | Transport & logistics | 2016 |
| Advance Fire Installations Ltd | Construction | 2018 |
| Advanced Robotics and Computing Ltd | Information & communication | 2025 |
| AEG Systems Ltd | Construction | 2026 |
| Aero IT Limited | Information & communication | 2023 |
| AF Sports Coaching Ltd | Education | 2017 |
| Afford Cleaning Services Ltd | Administrative & support | 2019 |
| African Shade Limited | Administrative & support | 2005 |
| AGB & Associates Limited | Financial services | 2002 |
| AGB Investment Properties Ltd | Real estate | 2017 |
| AGB Property Finance Ltd | Financial services | 2017 |
| AGB Property Management Ltd | Real estate | 2009 |
| Agile 3D Ltd | Professional & scientific | 2025 |
| AGM Assets Ltd | Real estate | 2025 |
| Ah-Jaz Investments Ltd | Real estate | 2022 |
| AI (Reigate) Limited | Real estate | 2017 |
| AI (South East) Limited | Construction | 2017 |
| AI (Twickenham) Limited | Construction | 2017 |
| AI Talent for Sport Ltd | Information & communication | 2023 |
| AID in Medicare & Education Limited | Health & social care | 2009 |
| Air Products (BR) Limited | Manufacturing | 1990 |
| Air Products Equipment Limited | Manufacturing | 2020 |
| Air Products Group Limited | Professional & scientific | 1995 |
| Air Products Llanwern Limited | Manufacturing | 1974 |
| Air Products Public Limited Company | Manufacturing | 1909 |
| Air Products Renewable Energy Limited | Energy | 2013 |
| Aircraft Engineering Training Solutions Aets Limited | Education | 2006 |
| Aird House Ltd | Households | 2016 |
| Aishlo International Limited | Wholesale & retail | 2024 |
| AJB Technology and Services Ltd | Information & communication | 2026 |
| AJC Packaging Solutions Ltd | Administrative & support | 2025 |
| AJW Contractors (Surrey) Limited | Construction | 2012 |
| AJW Painting Contractors Limited | Construction | 2013 |
| AK Olive Garden Ltd | Hospitality | 2006 |
| AL Bader Property Limited | Real estate | 2025 |
| Albermarle Management Services Limited | Real estate | 2010 |
| Alchemy Contract Publishing Ltd | Administrative & support | 2009 |
| Alex Sanz Construction and Maintenance Ltd | Construction | 2022 |
| ALG Communications Limited | Professional & scientific | 2014 |
| ALI Brothers Private Limited | Wholesale & retail | 2022 |
| Alice Jordan Fitness Ltd | Arts & recreation | 2023 |
| ALL Your Solutions Limited | Health & social care | 2010 |
| Allan Snow Accountants Ltd | Professional & scientific | 2021 |