| 1 Q.P.R. Limited | Real estate | 2014 |
| 11 Bradiston Road Limited | Real estate | 2013 |
| 1207 Accountancy Ltd | Professional & scientific | 2025 |
| 1207 Consultancy Ltd | Information & communication | 2017 |
| 14 Withipoll Street Freehold Company Ltd | Real estate | 2020 |
| 140 Ditchling Road Ltd | Households | 2018 |
| 152 Consulting Ltd | Professional & scientific | 2023 |
| 153 Sanderstead Road RTM Company Limited | Households | 2024 |
| 168 Woodside Green Management Limited | Households | 2017 |
| 168 Woodside Green RTM Company Limited | Real estate | 2012 |
| 16MS Services Management Limited | Wholesale & retail | 2021 |
| 17 Kings Grove Management Limited | Real estate | 2010 |
| 199 Croydon Road Freehold Company Limited | Households | 2016 |
| 199 Lower Richmond Road Development Ltd | Other services | 2008 |
| 1ST Option Limited | Manufacturing | 1994 |
| 2 Brothers Scaffolding Limited | Construction | 2013 |
| 2020 & Beyond Ltd | Wholesale & retail | 2019 |
| 23-26 Great James Street (Freehold) Limited | Real estate | 2011 |
| 25 Camden Hill Road Management Company Limited | Households | 2022 |
| 3 and 3A Albion Road Management Limited | Professional & scientific | 2004 |
| 3 Clicks Right Ltd | Information & communication | 2021 |
| 306 PSI Ltd | Professional & scientific | 2026 |
| 335 Limpsfield Road Ltd | Real estate | 2015 |
| 35 Culverden Road RTM Company Limited | Households | 2014 |
| 35 Gosfield Street Freehold Limited | Real estate | 2024 |
| 35 Gosfield Street Limited | Households | 2019 |
| 3D Steels Ltd | Professional & scientific | 2013 |
| 4 K Clothing Limited | Wholesale & retail | 2011 |
| 4 King Clothing Limited | Wholesale & retail | 2016 |
| 40 Victoria Crescent Residents' Association Limited | Other services | 1981 |
| 42-44 Clyde Road Freehold Limited | Real estate | 2003 |
| 43 Oakfield Road Freehold Limited | Households | 2012 |
| 44 Midland Terrace Limited | Real estate | 2018 |
| 45 Trafalgar Avenue Management Limited | Real estate | 2014 |
| 5 Star Renovations Ltd | Construction | 2024 |
| 50 Westway Management Company Limited | Households | 2022 |
| 555 Drains Limited | Water & waste | 2025 |
| 56 Wimbledon Hill Limited | Real estate | 2026 |
| 58 Victoria Crescent Management Co Limited | Households | 2002 |
| 59 Cadwallon Road Limited | Real estate | 2022 |
| 66HUNDRED Ltd | Wholesale & retail | 2020 |
| 72 to 74A and 80 to 82A Colliers Water Lane Limited | Households | 2023 |
| 8 Windrushes Management Limited | Administrative & support | 2013 |
| 90-100 Godstone Road Freehold Limited | Administrative & support | 1999 |
| A C Homer Limited | Professional & scientific | 2012 |
| A Votre Service Limited | Information & communication | 2003 |
| A.A. Clare & SON Limited | Construction | 2008 |
| A.N.A London Ltd | Real estate | 2022 |
| A25 Awnings Limited | Construction | 2020 |
| AA Walker Build Ltd | Construction | 2023 |
| AAC Contractor Limited | Construction | 2026 |
| AAD Wills Limited | Real estate | 2025 |
| AB4 Tech Solutions Ltd | Information & communication | 2026 |
| Abbott & Co Medical Limited | Health & social care | 2017 |
| ABC Care Home Ltd | Health & social care | 2005 |
| ABC Testing Limited | Construction | 2024 |
| Abcd Assistance Ltd | Households | 2021 |
| Abil Private Limited | Administrative & support | 2019 |
| Able and Baker (G.B.) Ltd | Professional & scientific | 2025 |
| Abletrust Care Limited | Health & social care | 2013 |
| ABN Mortgages Limited | Financial services | 2016 |
| Abstract Media Services Limited | Professional & scientific | 2013 |
| Acacia Gardening Maintenance Services LLP | | 2017 |
| Ace Building & Maintenance Ltd | Construction | 2025 |
| Acesi Ltd | Manufacturing | 2013 |
| Acetravelbonding Limited | Financial services | 2016 |
| ACN Callaway Ltd | Financial services | 2024 |
| Acorn Grounds & Garden Care Ltd | Administrative & support | 2019 |
| Acoustilux Suspended Ceilings Limited | Construction | 2004 |
| Action Services Solutions Ltd | Hospitality | 2023 |
| Actionmirror Limited | Administrative & support | 2006 |
| Active Defence and Protection Ltd | Administrative & support | 2024 |
| Acupuncture Success Limited | Health & social care | 2013 |
| Adam Green Art Limited | Arts & recreation | 2012 |
| Adascent Ltd | Professional & scientific | 2026 |
| Addison Construction & Joinery Limited | Construction | 2020 |
| Adgab Limited | Wholesale & retail | 2012 |
| ADH Tiling Limited | Construction | 2020 |
| Adore ME Clinic Ltd | Other services | 2021 |
| ADP Accountancy Limited | Professional & scientific | 2015 |
| Advanced Automation Services Limited | Administrative & support | 2021 |
| Aero and Defence Solutions Limited | Public administration | 2013 |
| Aesthetics & Skin by Sally Ltd | Health & social care | 2024 |
| Afrasia Properties Ltd | Real estate | 2020 |
| Ageka Limited | Real estate | 1992 |
| AGGIE4REAL Ltd | Health & social care | 2012 |
| AGT Electrical Limited | Construction | 2013 |
| Ah:Gh Electrical Services LLP | | 2019 |
| AI Cards Wallet Ltd | Information & communication | 2025 |
| AJ Supernova Limited | Professional & scientific | 2022 |
| AKO Team Ltd | Health & social care | 2012 |
| Akomaasa Performing Arts Academy CIC | Arts & recreation | 2016 |
| Alaska Horizon Ltd | Wholesale & retail | 2015 |
| Albanian Athletes Group UK Ltd | Arts & recreation | 2020 |
| Alberto Kurti Coaching Ltd | Education | 2016 |
| Aldercombe Lane Limited | Other services | 1983 |
| Aldermoor Enterprises Limited | Administrative & support | 2012 |
| Alexander Black Limited | Other services | 1933 |
| Algolane Limited | Information & communication | 2016 |
| Alit Solutions Ltd | Information & communication | 2004 |