| 4RTISTRY Limited | Professional & scientific | 2026 |
| 5 Edwards Avenue Freehold Company Limited | Households | 2020 |
| 5 Star Glazing Ltd | Construction | 2015 |
| 5 Star Home Improvements Ltd | Construction | 2023 |
| 50 Brook Green (London W6) Management Company Limited | Households | 2025 |
| 500% Sprl Ltd | Wholesale & retail | 2022 |
| 52 Crediton Hill Management Company Limited | Households | 2000 |
| 54-60 Cedars Drive (Freehold) Limited | Hospitality | 2014 |
| 57 Fresh Ventures Group Ltd | Professional & scientific | 2025 |
| 5K Real Estate Limited | Real estate | 2017 |
| 6 Churchill Road Freehold Ltd | Households | 2025 |
| 6X Ltd | Wholesale & retail | 2025 |
| 7 Days Carpets & Wood Flooring Limited | Construction | 2014 |
| 7 Moons Ltd | Wholesale & retail | 2022 |
| 7 Pound Store Ltd | Wholesale & retail | 2025 |
| 7 SRS Limited | Information & communication | 2015 |
| 7 Star Estates Ltd | Real estate | 2015 |
| 7-21 Norfolk Road RTM Company Limited | Households | 2007 |
| 719 Consultancy Limited | Health & social care | 2023 |
| 74 Harefield Road Freehold Company Limited | Households | 2013 |
| 76 Harefield Road Residents Association Limited | Households | 2000 |
| 76-78 Cedars Drive (Freehold) Limited | Real estate | 2014 |
| 777 Recruitment Limited | Administrative & support | 2008 |
| 777888 Limited | Information & communication | 2006 |
| 78A Kings Avenue Management Limited | Households | 2017 |
| 78A SW48BH Limited | Construction | 2014 |
| 7DAYS Housing Management Limited | Real estate | 2022 |
| 8 Aspen Gardens Ltd | Real estate | 2021 |
| 8 Overlord Close Ltd | Real estate | 2024 |
| 808 Tech Limited | Administrative & support | 2015 |
| 808PRODUCTIONS Ltd | Construction | 2025 |
| 9 Pound Store Ltd | Wholesale & retail | 2025 |
| 9 Zones Ltd | Administrative & support | 2016 |
| 92 Elgin Avenue Management Limited | Administrative & support | 1997 |
| 92 Studio Ltd. | Professional & scientific | 2024 |
| 98 Albemarle RTM Company Limited | Households | 2024 |
| 9T9 Trading Limited | Wholesale & retail | 1999 |
| A & H Financial Services Limited | Financial services | 1992 |
| A & I Care Home Ltd | Health & social care | 2005 |
| A & J Property Placements Ltd | Households | 2025 |
| A & M Fencing Company Limited | Construction | 2004 |
| A & P Homes Limited | Real estate | 2017 |
| A & R Builders Limited | Construction | 2017 |
| A and I Consultancy Ltd | Professional & scientific | 2015 |
| A and J Flowers Ltd | Wholesale & retail | 2023 |
| A Brick Project Constructions Ltd. | Construction | 2023 |
| A C Maintenance Ltd | Construction | 2017 |
| A C UK Group Ltd | Construction | 2017 |
| A Catalyst Ltd | Manufacturing | 2025 |
| A Cosma Limited | Professional & scientific | 2008 |
| A Driving School Ltd | Education | 2022 |
| A G Financial Consultants Limited | Professional & scientific | 2009 |
| A G Visual Limited | Information & communication | 2026 |
| A H Films Ltd | Information & communication | 2017 |
| A Jones Lighting Ltd | Other services | 2011 |
| A Jones Lighting Services Ltd | Other services | 2025 |
| A Key Tech Properties Ltd | Real estate | 2024 |
| A M Property Refurb Services Ltd | Construction | 2026 |
| A Plus a Services Limited | Wholesale & retail | 2009 |
| A to Z Keys Ltd | Other services | 2025 |
| A Touch of Colour Decorators Limited | Construction | 2018 |
| A W 2 Limited | Manufacturing | 1955 |
| A W Patmore & SON Limited | Construction | 2006 |
| A Wake While You’Re Still Awake Ltd | Health & social care | 2025 |
| A Y Cars Ltd | Wholesale & retail | 2024 |
| A&A Painting and Decorating Limited | Construction | 2021 |
| A&A Scaffolding Ltd | Construction | 2021 |
| A&C Creative Property Ltd | Real estate | 2023 |
| A&E Painting and Decorating Ltd. | Construction | 2015 |
| A&F Construction Group Limited | Construction | 2022 |
| A&H Best Builders Ltd | Construction | 2025 |
| A&H Elite Ltd | Administrative & support | 2026 |
| A&M Construction Development Services Ltd | Construction | 2024 |
| A&M Services (London) Limited | Wholesale & retail | 2014 |
| A&P Plumbing - Heating Ltd | Construction | 2024 |
| A&R Home Improvements Ltd | Construction | 2024 |
| A&S Official UK Limited | Wholesale & retail | 2020 |
| A&T Property Group Ltd | Real estate | 2026 |
| A-2-Z Property Maintenance Ltd | Construction | 2019 |
| A-2-Z Site Clearance Ltd | Wholesale & retail | 2022 |
| A-Finity Ltd | Transport & logistics | 2019 |
| A-Finity Trading Ltd | Wholesale & retail | 2023 |
| A-Marc Holding Ltd | Real estate | 2024 |
| A-Tmg Logistics Limited | Transport & logistics | 2023 |
| A-Z Beauty Ltd | Manufacturing | 2023 |
| A.D.K. Kooling Ltd | Other services | 2006 |
| A.J. Anton (U.K.) Limited | Professional & scientific | 1989 |
| A.M Decorators Ltd | Construction | 2022 |
| A.M. Enforcement Ltd | Professional & scientific | 2018 |
| A.P.G. Consultancy Limited | Information & communication | 2004 |
| A.R.T Smart Repairs Ltd | Wholesale & retail | 2025 |
| A.S. Ductwork Limited | Manufacturing | 2000 |
| A1 Edge Limited | Construction | 2026 |
| A1 Lifestyle Limited | Administrative & support | 2023 |
| A1 Painting & Decorating Ltd | Construction | 2023 |
| A1 Satellite & Digital Services Limited | Other services | 2019 |
| A1 Vacant Property Management Ltd | Households | 2019 |
| A2 Property Solution Ltd | Construction | 2025 |
| A2B Ignitions Ltd | Administrative & support | 2022 |
| A2V Services Ltd. | Transport & logistics | 2025 |