| 007 Grabs Services Ltd | Mining & quarrying | 2019 |
| 007 Groundworks and Landscaping Ltd | Construction | 2022 |
| 007RESULTS Ltd | Professional & scientific | 2024 |
| 1 & 3 the Rise (Amersham) Limited | Real estate | 2015 |
| 105 Hamilton Terrace Limited | Real estate | 1997 |
| 11 Hill Avenue Management Company Limited | Households | 2026 |
| 11ELEVEN Management Limited | Information & communication | 2022 |
| 12 Garden Design Limited | Professional & scientific | 2016 |
| 122 Chartridge Lane Management Limited | Real estate | 2005 |
| 14-17 Chalfont Avenue Freehold Limited | Real estate | 2017 |
| 146 Inderwick Road Limited | Households | 2008 |
| 1505 Engineering Ltd | Professional & scientific | 2019 |
| 20 : 20 Clean Ltd | Other services | 2014 |
| 21 Grange Park Freehold Co Limited | Households | 2021 |
| 25 Lexington Ltd | Professional & scientific | 2020 |
| 25-35 Alan Hocken Way (Freehold) Limited | Real estate | 2012 |
| 27 Amersham Ltd | Hospitality | 2025 |
| 3 Station Road Amersham Ltd | Real estate | 2021 |
| 3 V Enterprises Limited | Real estate | 2010 |
| 3 Valleys Sporting Ltd. | Arts & recreation | 2015 |
| 31-35 New Road Amersham Limited | Real estate | 2009 |
| 31-35B New Road Management Company Limited | Professional & scientific | 2007 |
| 35 Nightingale Road Southsea (1994) Limited | Households | 1994 |
| 360 Evolution Limited | Financial services | 2021 |
| 360 Ground Contractors Ltd | Extraterritorial | 2021 |
| 360 Hub Ltd | Construction | 2004 |
| 360 Living Ltd | Construction | 2009 |
| 360 Mortgage Consultants Limited | Financial services | 2014 |
| 360 Rectory Road Ltd | Construction | 2021 |
| 360VISION Security Ltd | Administrative & support | 2019 |
| 360VISION System Ltd | Administrative & support | 2024 |
| 3BDA Limited | Professional & scientific | 2015 |
| 3C Interiors Workplace Design Ltd | Professional & scientific | 2023 |
| 3PLS Platform Limited | Administrative & support | 2023 |
| 4 Consulting London Ltd | Information & communication | 2018 |
| 4 Rufford Street Management Company Limited | Professional & scientific | 2000 |
| 48 Chiswick Lane Management Company Limited | Households | 2000 |
| 4LOGIX Ltd | Information & communication | 2020 |
| 4SCONES Ltd | Wholesale & retail | 2023 |
| 4SITE Services London Limited | Water & waste | 2014 |
| 4TH Horizon Ltd | Agriculture & fishing | 2020 |
| 5 & 7 the Rise (Amersham) Limited | Households | 2011 |
| 56 Chiswick Lane Ltd | Households | 2020 |
| 5BC Ltd | Real estate | 2025 |
| 6 Shorediche Close Ltd | Real estate | 2020 |
| 6 ST Anthonys Road Ltd | Real estate | 2026 |
| 7-BIT Labs Ltd | Information & communication | 2015 |
| 72FER Ltd | Real estate | 2018 |
| 77 Promenade Management Limited | Households | 2025 |
| 78 Hazel Crescent Management Company Limited | Real estate | 2015 |
| 79 Vespan Road Management Company Limited | Households | 2011 |
| 8 Properties Limited | Real estate | 2001 |
| 9 Linden Gardens Limited | Households | 1997 |
| 9-2-30 Limited | Information & communication | 2021 |
| A & M Contracting Limited | Agriculture & fishing | 2006 |
| A & N Raichura Properties Limited | Real estate | 2017 |
| A & S Cine Enterprises Ltd | Information & communication | 2023 |
| A Billingham Forensic Consultants Ltd | Administrative & support | 2009 |
| A J Ross Media Ltd | Information & communication | 2015 |
| A Little Street Kitchen Limited | Hospitality | 2018 |
| A Piedi Ltd | Wholesale & retail | 2015 |
| A&N Smiles Limited | Health & social care | 2021 |
| A&N Smiles Properties Limited | Real estate | 2022 |
| A1 K9 (Chalfont) Limited | Other services | 2014 |
| A2Z Taxis Amersham Limited | Transport & logistics | 2007 |
| A3S Group Limited | Construction | 2025 |
| A4 Technology Solutions Ltd | Information & communication | 2016 |
| Aaranya Limited | Wholesale & retail | 2024 |
| Aark Real Estates Limited | Real estate | 2024 |
| Aaron Carlo Hair Limited | Other services | 2015 |
| Aaron West's Goalkeeping Academy | Arts & recreation | 2011 |
| Aarthy Limited | Professional & scientific | 2011 |
| Aarun Software Limited | Information & communication | 2014 |
| Aaruth Civil Railway Systems Ltd | Construction | 2014 |
| Abas Properties Ltd | Real estate | 2020 |
| Abbercross Limited | Professional & scientific | 1987 |
| Abbey Scientific Limited | Professional & scientific | 2010 |
| Abelman Analytics Ltd | Information & communication | 2023 |
| ABH8 Consulting Limited | Professional & scientific | 2023 |
| Abhiman Investments Ltd | Financial services | 2018 |
| Above and Beyond Electrical Ltd | Construction | 2025 |
| Absolute Chelsea Ltd | Information & communication | 2020 |
| Academic Action Ltd | Education | 2022 |
| Academic Action Social Enterprise Ltd | Education | 2023 |
| Accelerate GTM Ltd | Professional & scientific | 2025 |
| Accendor Consulting Limited | Professional & scientific | 2013 |
| Accountancy & Business Advice Centre Limited | Professional & scientific | 1992 |
| Accountick Ltd | Professional & scientific | 2016 |
| Accounting Without Borders Limited | Professional & scientific | 2019 |
| Acentia Electrical Ltd | Construction | 2012 |
| Acentia Solar Limited | Construction | 2022 |
| ACM Development Limited | Professional & scientific | 2011 |
| Acme Equipment Hire Ltd | Health & social care | 2020 |
| ACN Marketing Ltd | Professional & scientific | 2022 |
| Acorn Business Consulting Ltd | Information & communication | 2014 |
| ACP Estate Management Limited | Households | 2018 |
| Acrfc Trading Limited | Arts & recreation | 2016 |
| Activ Business Solutions Ltd | Information & communication | 2017 |
| AD Music Ltd | Information & communication | 2022 |
| Adalta International Solutions Limited | Professional & scientific | 2000 |