| A.O. George Consultancy Services Ltd | Professional & scientific | 2015 |
| A.O. Services | Professional & scientific | 1959 |
| A.O.H. Limited | Arts & recreation | 2018 |
| A.O.J. Autos Limited | Administrative & support | 2022 |
| A.O.K Kitchen (Marylebone) Limited | Hospitality | 2017 |
| A.O.K Lifestyle Management Ltd | Other services | 2025 |
| A.O.L Roofing Services Limited | Construction | 2024 |
| A.O.M. Properties Ltd | Real estate | 2019 |
| A.O.Tabi Company Limited | Health & social care | 2022 |
| A.O.W Ltd | Wholesale & retail | 2020 |
| A.Ok Electrical Installation & Compliance Services Limited | Construction | 2018 |
| A.P Industrialfinance Ltd | Professional & scientific | 2012 |
| A.P Royce Properties Ltd | Real estate | 2021 |
| A.P Transport Solutions Ltd | Transport & logistics | 2025 |
| A.P. Chemist Limited | Wholesale & retail | 2003 |
| A.P. Davies Contracting Ltd | Construction | 2025 |
| A.P. Gilfoyle U.K. Ltd. | Administrative & support | 2025 |
| A.P. Holdings Invest Limited | Real estate | 2017 |
| A.P. Maddison-Roberts (NO.1) Developments Limited | Construction | 2007 |
| A.P. Property Investment 1 Ltd | Real estate | 2024 |
| A.P. Screen Printers Limited | Extraterritorial | 1980 |
| A.P. Tech & Mgmt Ltd | Professional & scientific | 2025 |
| A.P.Brissett Properties Ltd | Construction | 2025 |
| A.P.C. England Limited | Wholesale & retail | 2015 |
| A.P.D Ventures Ltd | Wholesale & retail | 2025 |
| A.P.Filipov Ltd | Construction | 2026 |
| A.P.G. Consultants Limited | Real estate | 2002 |
| A.P.Last & Sons Limited | Financial services | 1954 |
| A.P.M. Residents Company Ltd | Households | 1988 |
| A.P.M. Services Limited | Water & waste | 2023 |
| A.P.S. (London) Limited | Real estate | 1996 |
| A.Pamphilon & Sons (Walthamstow) Limited | Manufacturing | 1961 |
| A.Perton Signs Limited | Administrative & support | 1939 |
| A.Porter Ltd | Construction | 2024 |
| A.Prints Limited | Manufacturing | 2022 |
| A.R Adam Group Ltd | Extraterritorial | 2019 |
| A.R Kingdom Investments Ltd | Households | 2025 |
| A.R. & V. Properties Limited | Construction | 2000 |
| A.R. & V.Investments Limited | Real estate | 1959 |
| A.R. (Feltham) Limited | Transport & logistics | 2011 |
| A.R. Gill & Co. Limited | Arts & recreation | 2011 |
| A.R. Maintenance and Building Services Limited | Construction | 2003 |
| A.R. Pest Control Ltd | Administrative & support | 2025 |
| A.R. Spark Ltd | Construction | 2019 |
| A.R. Therapeutic Services Ltd | Health & social care | 2021 |
| A.R.A Mortgage Services Ltd | Professional & scientific | 2020 |
| A.R.C Labour Limited | Construction | 2005 |
| A.R.C Landscaping and Building Services Ltd | Construction | 2026 |
| A.R.C. Music Acquisition Company I Ltd | Information & communication | 2021 |
| A.R.Courier Services Ltd | Wholesale & retail | 2007 |
| A.R.D. Business Limited | Other services | 2012 |
| A.R.E (Project One) Ltd | Construction | 2022 |
| A.R.E. Business & Professional Limited | Financial services | 1998 |
| A.R.F Automotive Ltd | Wholesale & retail | 2026 |
| A.R.G.C. Limited | Health & social care | 2000 |
| A.R.H Holdings 2 Ltd | Financial services | 2025 |
| A.R.H. Group Holdings Ltd | Professional & scientific | 2023 |
| A.R.H. Holdings 1 Limited | Professional & scientific | 2026 |
| A.R.H. Holdings Ltd | Professional & scientific | 2023 |
| A.R.L. Consultants Ltd | Administrative & support | 2021 |
| A.R.M. Services Group Limited | Financial services | 1999 |
| A.R.M.S Property Ltd | Real estate | 2023 |
| A.R.N. Holdings Ltd. | Professional & scientific | 2024 |
| A.R.N.S Construction Ltd | Construction | 2018 |
| A.R.S Solutions Group Ltd | Water & waste | 2026 |
| A.R.T. Corp LP | | 2014 |
| A.R.T. PR Ltd | Professional & scientific | 2017 |
| A.R.Y. Club Ltd | Other services | 2026 |
| A.Rahman Limited | Hospitality | 2025 |
| A.Romani Limited | Wholesale & retail | 2013 |
| A.Roseprojects Limited | Construction | 2019 |
| A.Row Consulting Limited | Professional & scientific | 2021 |
| A.S & M.S Builders Ltd | Construction | 2021 |
| A.S Builders and Contractors Ltd | Construction | 2019 |
| A.S Cleaning Services Ltd | Other services | 2014 |
| A.S Construction & Engineering Ltd | Professional & scientific | 2016 |
| A.S Cotton Xperts Ltd | Wholesale & retail | 2021 |
| A.S Courier & Removal Services Ltd | Water & waste | 2025 |
| A.S Delivers Ltd | Other services | 2012 |
| A.S Digital World Ltd | Wholesale & retail | 2026 |
| A.S Housing UK Limited | Real estate | 2023 |
| A.S Property Consulting and Surveying Ltd | Real estate | 2024 |
| A.S S.H Stadservice Limited | Extraterritorial | 2022 |
| A.S Sons Ltd. | Hospitality | 2015 |
| A.S Steel Limited | Construction | 2025 |
| A.S. - C&C Solutions Limited | Professional & scientific | 2017 |
| A.S. Basic Limited | Arts & recreation | 2014 |
| A.S. Brill & Co Limited | Professional & scientific | 2021 |
| A.S. Carlton Limited | Wholesale & retail | 2007 |
| A.S. Compa Ltd | Wholesale & retail | 2026 |
| A.S. Duncan Limited | Wholesale & retail | 2001 |
| A.S. Films Limited | Administrative & support | 2003 |
| A.S. Handover Trustees Limited | Professional & scientific | 2022 |
| A.S. Holdings (UK) Limited | Professional & scientific | 1981 |
| A.S. Marine Power Solutions Ltd | Manufacturing | 2016 |
| A.S. Prime Trading Ltd | Wholesale & retail | 2023 |
| A.S. Studio Limited | Professional & scientific | 2006 |
| A.S. Temple Services Ltd | Financial services | 2023 |
| A.S. Transport & Logistics Limited | Transport & logistics | 2025 |
| A.S. Tuition Limited | Professional & scientific | 2024 |