| (Ca)Nnection Limited | Administrative & support | 2020 |
| 1 Princes Road Management Limited | Households | 2008 |
| 10 Woodside (Wimbledon) Limited | Real estate | 2004 |
| 137 Gladstone Road Management Limited | Hospitality | 2008 |
| 176 Hartfield Road Limited | Households | 2025 |
| 1ST Nationwide Security Ltd | Administrative & support | 2010 |
| 213 Kingston Road Limited | Other services | 2008 |
| 215 Management RTM Company Ltd | Households | 2015 |
| 24 Pelham Road Limited | Households | 2014 |
| 24-7 Waste Clearance Limited | Water & waste | 2023 |
| 240INC Ltd | Information & communication | 2016 |
| 276 Ford Ltd | Financial services | 2018 |
| 3 Bright Minds Consulting Limited | Professional & scientific | 2010 |
| 30 Day Extensions Consultancy Ltd | Professional & scientific | 2024 |
| 30 Day Extensions Limited | Construction | 2018 |
| 30 Day Extensions Wandsworth Ltd | Construction | 2019 |
| 35 Regent Street Limited | Real estate | 2024 |
| 36 Quicks Road Limited | Households | 2010 |
| 3RD Floor Properties Limited | Real estate | 2006 |
| 4 South Park Property Management Limited | Households | 2021 |
| 400 & 402 Fulham Palace RD Management Company Limited | Real estate | 2022 |
| 43 Latimer Road Limited | Households | 2021 |
| 4TH Floor Properties Limited | Administrative & support | 2006 |
| 51 Pelham Road Management Limited | Real estate | 2003 |
| 54 Pont Limited | Real estate | 2023 |
| 65 Mount NOD Road RTM Company Limited | Households | 2014 |
| 72 Leopold Road Freehold Limited | Households | 2006 |
| 75 Cottenham Park Road Residents Association Limited | Extraterritorial | 1993 |
| 786 LDN Limited | Real estate | 2018 |
| 787 LDN Ltd | Real estate | 2021 |
| 888 VMS Ltd | Wholesale & retail | 2010 |
| 98 Woodside Management Limited | Extraterritorial | 1989 |
| A & N Schofield Ltd | Professional & scientific | 2012 |
| A3RS Consulting Limited | Information & communication | 2025 |
| A4HEALTHCARE Ltd | Health & social care | 2025 |
| A508 Limited | Professional & scientific | 2009 |
| AA Medical Services (London) Limited | Administrative & support | 2013 |
| Aardmann Limited | Professional & scientific | 2002 |
| Aasha Caterers Limited | Extraterritorial | 2010 |
| AB Robots Ltd | Information & communication | 2022 |
| Abasyn Foods Ltd | Manufacturing | 2020 |
| Absent Enterprise Ltd | Manufacturing | 2024 |
| AC Electrical (Surrey) Limited | Construction | 2019 |
| Acclaim Building Co Limited | Wholesale & retail | 1996 |
| Acorn Broadband Limited | Information & communication | 2018 |
| Acute Management Services Limited | Professional & scientific | 2011 |
| ADRIYAN11 Ltd | Construction | 2014 |
| Advanced London Spine Surgery Limited | Health & social care | 2017 |
| Adventure Uncovered Ltd | Professional & scientific | 2016 |
| Aerie Holdings Ltd | Hospitality | 2021 |
| AFC Wimbledon Foundation | Health & social care | 2013 |
| After Thought Media Ltd. | Information & communication | 2017 |
| Aghs Services Ltd | Administrative & support | 2017 |
| AJ & AV Ltd | Real estate | 2022 |
| AK TEC Limited | Information & communication | 2015 |
| Akasha Partners Ltd | Professional & scientific | 2015 |
| Akcess Labs Limited | Information & communication | 2018 |
| Aksis Lettings Limited | Real estate | 2024 |
| ALB (U.K) Limited | Wholesale & retail | 2026 |
| Alder Securities Limited | Households | 1961 |
| Aldersbrook Consulting Limited | Professional & scientific | 2020 |
| Alfold Gardens Management Company Limited | Households | 2024 |
| ALG Advisory Ltd | Health & social care | 2026 |
| Alisof Restaurants Ltd | Hospitality | 2017 |
| Allculate Ltd | Professional & scientific | 2019 |
| Alpha Lion Estate Ltd | Real estate | 2025 |
| Alpha Romeo Consultants Ltd | Professional & scientific | 2017 |
| Ambushed.Tv Limited | Professional & scientific | 2020 |
| Amit Shah Associates Limited | Professional & scientific | 2016 |
| Amstey Investments Limited | Real estate | 2000 |
| Analah Consulting Limited | Information & communication | 2024 |
| Andee Pardo Consultancy Limited | Administrative & support | 2004 |
| Annapurna Strategy Ltd | Professional & scientific | 2021 |
| Antalefre Limited | Professional & scientific | 2014 |
| Anziks UK Limited | Hospitality | 2023 |
| APR Plumbing and Heating Ltd | Construction | 2020 |
| AQ Autos Ltd | Wholesale & retail | 2018 |
| Arabian Ventures Tourism Limited | Administrative & support | 2024 |
| Aranar Limited | Hospitality | 2026 |
| Arbr Services Ltd | Administrative & support | 2024 |
| Arbrook Ltd | Wholesale & retail | 2020 |
| ARI D Norman Limited | Wholesale & retail | 1998 |
| Armabiollon Limited | Construction | 2015 |
| Armoo and Co Ltd | Professional & scientific | 2024 |
| Arokia Healthcare Ltd | Professional & scientific | 2026 |
| Arpinum Consulting Ltd | Professional & scientific | 2019 |
| Arrian Management Limited | Professional & scientific | 2016 |
| AS Hampton Limited | Real estate | 2024 |
| AS Perms Limited | Administrative & support | 2019 |
| Ashling Homes Healthcare Ltd | Health & social care | 2014 |
| ASM Inspirit Limited | Information & communication | 2025 |
| ASN Health Care Ltd | Health & social care | 2022 |
| Aspenline Properties Ltd | Real estate | 2001 |
| Asylum Models and Effects Limited | Other services | 1985 |
| Atia Aviation Limited | Professional & scientific | 2015 |
| ATP Media Holdings Limited | Financial services | 2017 |
| ATP Media Licensing Limited | Professional & scientific | 2017 |
| ATP Media Operations Limited | Information & communication | 1998 |
| ATP Media Tennis Limited | Financial services | 2017 |
| ATP Tennis Ltd | Extraterritorial | 1995 |