| 1 - 3 Dingwall Road (Management) Limited | Households | 2005 |
| 100 AM Limited | Real estate | 2026 |
| 100Z Asset Management Limited | Real estate | 2016 |
| 111 Victoria Road Management Company Limited | Households | 2012 |
| 11AHS Hairdressing Ltd | Other services | 2026 |
| 15 Heath Hurst RD Co Limited | Real estate | 2025 |
| 16/17 Montagu Square Limited | Households | 1986 |
| 21 Trentham Street Ltd | Real estate | 2017 |
| 22 Queens Road Management Limited | Households | 2007 |
| 229 Ladbroke Grove (Freehold) Limited | Real estate | 2007 |
| 25 Bryanston Square Limited | Real estate | 2014 |
| 26-28 North Audley Limited | Real estate | 2004 |
| 28 Living Properties Ltd | Hospitality | 2025 |
| 356 International Limited | Professional & scientific | 1989 |
| 361 Kingston Road Management Company Limited | Households | 2025 |
| 381 Consultancy LLP | | 2009 |
| 3D Education Ltd | Education | 2021 |
| 3D Rights Company Limited | Arts & recreation | 2012 |
| 4 Paws Mobile Spa Limited | Professional & scientific | 2012 |
| 4 Paws Spa Limited | Administrative & support | 2016 |
| 42HS Hairdressing Ltd | Other services | 2026 |
| 4@CAMBORNE Road RTM Company Limited | Households | 2018 |
| 50 a B C Management Company Limited | Households | 2017 |
| 50 City Road Management Company Limited | Households | 2005 |
| 55 Consulting Ltd | Professional & scientific | 2024 |
| 591 Automotive Group Limited | Financial services | 2024 |
| 5DM1 Limited | Real estate | 2026 |
| 5DM2 Limited | Real estate | 2026 |
| 5DM5 Limited | Real estate | 2026 |
| 5RL Limited | Real estate | 2003 |
| 66 Anstey Road RTM Company Limited | Real estate | 2016 |
| 66JA Company Limited | Real estate | 2008 |
| 7 Connections Limited | Education | 2013 |
| 72-74 Mount Pleasant Management Company Limited | Households | 2010 |
| 77 MPR Ltd. | Households | 1996 |
| 81 Felsham Road Management Company Limited | Households | 2000 |
| 87 Southwood Lane Limited | Households | 1983 |
| A & a Corporation Ltd | Wholesale & retail | 2020 |
| A & C Wilks Limited | Transport & logistics | 2010 |
| A & J Roofing (Haslemere) Limited | Construction | 2006 |
| A BET a Services Limited | Information & communication | 2014 |
| A C Smith & SON Limited | Construction | 2002 |
| A J Smith Building Services Limited | Construction | 2006 |
| A Pickston Ltd | Financial services | 2024 |
| A SLY Consulting Limited | Administrative & support | 2016 |
| A&J Green Space Limited | Administrative & support | 2019 |
| A&S Physiotherapy Ltd | Other services | 2016 |
| A. & W. Goddard Limited | Other services | 1955 |
| A.J. Tracy (Funeral Directors) Ltd | Other services | 1997 |
| A.P.E Logistics Ltd | Transport & logistics | 2025 |
| A.R.K Fencing and Gates Ltd | Other services | 2017 |
| A.S.A. Management Services Limited | Real estate | 1986 |
| A1 Independent British 4X4 Specialists Limited | Wholesale & retail | 2008 |
| A3 Asbestos Services Limited | Construction | 2021 |
| Aaronson Noon Ltd. | Manufacturing | 1999 |
| AB Intelligent Solar Limited | Manufacturing | 2026 |
| AB Maintain Limited | Manufacturing | 2026 |
| AB Solar Ltd | Wholesale & retail | 2022 |
| AB1 Developments Limited | Construction | 2004 |
| ABA Stronalva Limited | Energy | 2007 |
| Aback Productions Limited | Information & communication | 2018 |
| Abacus 42 Limited | Professional & scientific | 2007 |
| Abacus Business Solutions (Consultancy) Limited | Professional & scientific | 1999 |
| Abacus Sarev Ltd | Information & communication | 1999 |
| Abacus Valves International Limited | Manufacturing | 2000 |
| ABB Technology Management Limited | Professional & scientific | 2016 |
| Abbeyfield Films Ltd | Information & communication | 2008 |
| Abbotsholme Education Limited | Education | 2026 |
| Abefa Limited | Information & communication | 2018 |
| Abika Trading Limited | Wholesale & retail | 2019 |
| ABM Consulting Limited | Professional & scientific | 2012 |
| Above and Beyond Roofing and Property Maintenance Ltd | Construction | 2025 |
| ABS Holdings Ltd | Financial services | 2023 |
| Absolute Aromas Group Limited | Financial services | 2017 |
| Absolute Aromas Limited | Manufacturing | 1994 |
| Absolute Healthcare Providers Limited | Health & social care | 2009 |
| Accounting in Partnership LLP | | 2009 |
| Accounting Partnership Limited | Professional & scientific | 2004 |
| Ace Life Science Consulting Limited | Professional & scientific | 2020 |
| Ace Verandas Ltd | Construction | 2025 |
| ACG Enterprises Limited | Construction | 2021 |
| ACJ Events Ltd | Wholesale & retail | 2018 |
| Acorn Packaging Partnership LLP | | 2007 |
| Acorn Property Maintenance Limited | Real estate | 1993 |
| Acorn Timber Buildings Limited | Construction | 2025 |
| Acott Fire Scene Investigations Limited | Public administration | 2013 |
| Acoustic Monitoring International Ltd | Manufacturing | 2023 |
| Acrone Limited | Information & communication | 1987 |
| ACW Arborists Limited | Agriculture & fishing | 2020 |
| Adamsink Limited | Professional & scientific | 2017 |
| Adapt Property Solutions Ltd | Construction | 2020 |
| ADD Signs Designs Ltd | Other services | 2014 |
| Adderson Consultancy Limited | Professional & scientific | 1996 |
| Additive First Limited | Manufacturing | 2021 |
| Addlux Limited | Manufacturing | 2010 |
| Adhartas Solutions Limited | Professional & scientific | 2018 |
| Adore Landscapes Limited | Administrative & support | 2024 |
| Advanced Technology Installations Limited | Administrative & support | 2005 |
| Advantage Risk Solutions Limited | Financial services | 2014 |
| Aelfreda Ltd | Professional & scientific | 2021 |