| 00872046 Limited | Professional & scientific | 1966 |
| 037 Limited | Professional & scientific | 2025 |
| 1-2 Embankment Gardens Limited | Real estate | 2012 |
| 11 Killyon Road Limited | Households | 1996 |
| 110 (Windsor) Management Company Limited | Households | 2002 |
| 110 and 112 Boldon Lane Limited | Real estate | 2012 |
| 13 Alexandra Grove Ltd | Households | 2016 |
| 148-170 Mead Avenue RTM Company Limited | Households | 2012 |
| 15 Bronsart Road (Fulham) Freehold Limited | Households | 2018 |
| 1955 Limited | Wholesale & retail | 2022 |
| 1A Bexley Street (Windsor) Limited | Households | 2019 |
| 1ST Regulatory Ltd | Professional & scientific | 2009 |
| 2 Four Seven Limited | Information & communication | 2004 |
| 2 Haven Green Management Limited | Households | 2017 |
| 2 Heads Global Design Limited | Professional & scientific | 1986 |
| 2 Heads Global Holdings Limited | Financial services | 2009 |
| 22 Reading Road Management Company Limited | Households | 2011 |
| 23 & 25 Jeddo Road (Freehold) Limited | Real estate | 2015 |
| 24-7 Games Ltd | Wholesale & retail | 2010 |
| 242 Management Company Limited | Households | 2006 |
| 2533 Station Road Ltd | Real estate | 2024 |
| 27 Belgrave Road Limited | Households | 1994 |
| 3 County Care Limited | Administrative & support | 2013 |
| 31 - 38 Gandon Vale RTM Company Limited | Households | 2004 |
| 310AJ LLP | | 2013 |
| 314 Advisory Ltd | Professional & scientific | 2024 |
| 33-35 Red Lion Street (Chesham) Management Company Limited | Households | 2015 |
| 352 Amersham Road (Hazlemere) Management Company Limited | Households | 2020 |
| 365 Estate Maintenance Ltd | Construction | 2026 |
| 3D Virtual Creations Ltd | Information & communication | 2021 |
| 4 Corners International Limited | Administrative & support | 2001 |
| 4 Divisions Ltd | Information & communication | 2005 |
| 4 More Labs Limited | Information & communication | 2026 |
| 48.3 Training Limited | Other services | 2014 |
| 4D Concepts Limited | Information & communication | 1990 |
| 5 Newtown Road Management Company Limited | Households | 2004 |
| 52WEYSIDE Road Ltd | Construction | 2024 |
| 5TARS Cleaning Service Ltd | Administrative & support | 2024 |
| 6 & 8 Ifield Road Management Company Limited | Households | 2003 |
| 66 ST Augustines Avenue Management Limited | Households | 2019 |
| 7 Woodgrange Avenue (Freehold) Limited | Households | 2025 |
| 73 Sinclair Road Freehold Limited | Households | 2019 |
| 75 Mount Ararat Road Management Company Limited | Households | 1992 |
| 77 London Road HW Freehold Ltd | Households | 2017 |
| 7EU International Limited | Information & communication | 2024 |
| 8-18 Bridlington Spur Management Limited | Households | 2013 |
| 8T7 Consultancy Services Limited | Professional & scientific | 2013 |
| 96 Gregories Management Company Ltd | Households | 2021 |
| 99 High Street (Burnham) Management Limited | Households | 2017 |
| A & P Tech Ltd | Extraterritorial | 2018 |
| A Lane Management Limited | Professional & scientific | 2007 |
| A Marsh Engineering Ltd | Professional & scientific | 2026 |
| A Stewart Interior Limited | Professional & scientific | 2007 |
| A&T Home Investments Limited | Real estate | 2024 |
| A. & S. Hillman Limited | Hospitality | 1931 |
| A. Edwards Limited | Administrative & support | 1988 |
| A.M.O Scaffolding Ltd | Construction | 2020 |
| AA Property Freehold Ltd | Hospitality | 2024 |
| AB Construction Services Limited | Construction | 2025 |
| AB Creative Live Limited | Administrative & support | 2017 |
| AB Culture Limited | Professional & scientific | 2020 |
| AB Design-Build Ltd | Construction | 2025 |
| Abbey Island Limited | Manufacturing | 2023 |
| Abbotswood (Beaconsfield) Management Company Limited | Households | 2010 |
| Abilities Global Ltd. | Wholesale & retail | 2015 |
| Ablemaxx Limited | Other services | 2013 |
| ABP Operations Services Ltd | Professional & scientific | 2022 |
| Abracazebra Ltd | Information & communication | 2023 |
| Absolute Cuisine Limited | Hospitality | 2009 |
| Abstract Hairdressing Limited | Other services | 2012 |
| Acacia Commerce Ltd | Wholesale & retail | 2023 |
| Academy Point Limited | Extraterritorial | 2017 |
| Accelerated Brand Ltd | Professional & scientific | 2025 |
| Accept Ltd | Information & communication | 2009 |
| Acfc Holdings Ltd | Financial services | 2025 |
| Achievetech Solutions Ltd | Wholesale & retail | 2007 |
| Acoustipics Ltd | Wholesale & retail | 2025 |
| ACP Clinical Communications Limited | Health & social care | 2012 |
| Actis Sales Technologies Limited | Information & communication | 1999 |
| Active Electrical Motion Limited | Manufacturing | 2014 |
| Acumen Construction Services Limited | Construction | 2004 |
| Acute Ltd | Other services | 2025 |
| Acwa Ltd | Professional & scientific | 2023 |
| Adam Close RTM Company Limited | Households | 2014 |
| Adams and Adams Property Limited | Extraterritorial | 2025 |
| Adastral Partners Limited | Professional & scientific | 2026 |
| Addicted to Clean Ltd | Administrative & support | 2023 |
| Addvantage Marketing Limited | Professional & scientific | 2013 |
| Adshaa Collections Limited | Wholesale & retail | 2020 |
| Advanced Lubricants Ltd | Wholesale & retail | 2011 |
| Advice Holdings Limited | Financial services | 2022 |
| Aeneas Property Limited | Households | 2021 |
| Aerial Film and Photo Limited | Extraterritorial | 2024 |
| Affinitive AV Limited | Information & communication | 2015 |
| Affinitive IT Ltd | Other services | 2003 |
| Affinitive Ltd | Other services | 2006 |
| Affinity Associates (Marlow) Limited | Professional & scientific | 2002 |
| AFP Media Limited | Professional & scientific | 2015 |
| African Spot Kent Limited | Wholesale & retail | 2011 |
| Agentia Boardroom Ltd | Information & communication | 2025 |