| 1 & 2 Hollybank RTM Company Limited | Households | 2008 |
| 101 Architecture Limited | Professional & scientific | 2021 |
| 106 Guilford Street Freehold Limited | Households | 2013 |
| 11 Florence Road Freehold Limited | Real estate | 2022 |
| 11-13 Meeting House Lane Freehold Company Ltd | Real estate | 2025 |
| 11-16 Dundonald Close RTM Company Ltd | Households | 2019 |
| 13 Strides Limited | Information & communication | 2006 |
| 134 Radcliffe Road Limited | Construction | 2020 |
| 150 Pampisford Road Ltd | Real estate | 2019 |
| 17 Undercliff Road Freehold Limited | Households | 2022 |
| 1832 Ltd | Other services | 2025 |
| 19 to 22 Summerseat Close Owners Limited | Households | 2018 |
| 19TEN Limited | Administrative & support | 2011 |
| 1ST Rate Group Ltd | Construction | 2019 |
| 1ST Rate Roofing Ltd | Construction | 2019 |
| 1ST Stop Facilities Ltd | Administrative & support | 2024 |
| 1ST-DIRECT.COM Ltd | Administrative & support | 2008 |
| 21 Springfield Road Management Company Limited | Households | 2022 |
| 22 Milton Road Freehold Limited | Households | 2013 |
| 23 SLR RTM Company Limited | Real estate | 2013 |
| 23 Willow Road Management Limited | Households | 1995 |
| 24MP Limited | Wholesale & retail | 2016 |
| 25 Westby Road Limited | Real estate | 2023 |
| 35 Knyveton Road (Management) Limited | Households | 2024 |
| 36 Talbot Hill Road RTM Company Limited | Households | 2022 |
| 3D & IT Accessories Limited | Information & communication | 2007 |
| 3DBCONSULTING Ltd. | Professional & scientific | 2011 |
| 3PILLAR Associates Ltd | Financial services | 2025 |
| 3RW Ltd | Other services | 2020 |
| 40A 40B Wareham RD Ltd | Construction | 2021 |
| 443 Christchurch Road RTM Company Limited | Households | 2017 |
| 478-482 Hornsey Road RTM Company Limited | Households | 2021 |
| 48 Surrey Road RTM Company Limited | Households | 2020 |
| 4COUTURE.COM Limited | Wholesale & retail | 2003 |
| 5 Horning Road Ltd | Households | 2021 |
| 5 Star Pest Control (IW) Ltd | Administrative & support | 2018 |
| 56 Alum Chine Road Management Limited | Households | 2019 |
| 56 the Avenue Management Company Limited | Households | 2019 |
| 56-66 Dorchester Road Management Limited | Construction | 2019 |
| 6 Point 6 Holdings Ltd | Information & communication | 2018 |
| 6 Point 6 Limited | Information & communication | 2012 |
| 6 Week Challenge (Ringwood) Ltd | Arts & recreation | 2021 |
| 6FOUR2 Limited | Administrative & support | 2011 |
| 778 Holdings Ltd | Financial services | 2018 |
| 9 and 10 Linden Gardens RTM Company Limited | Households | 2024 |
| 9 Southampton Road Flats Ltd | Households | 2025 |
| 91 Clayton Street Management Limited | Real estate | 2001 |
| A & M Wholesale UK Limited | Wholesale & retail | 2019 |
| A a Marquees Limited | Administrative & support | 2002 |
| A J Ceilings & Partitions Ltd | Construction | 2014 |
| A M Developments (SW) Ltd | Construction | 2020 |
| A Starr Ltd | Administrative & support | 2024 |
| A-Star LOO Hire Ltd | Water & waste | 2024 |
| A.B.A. (International) Limited | Professional & scientific | 1987 |
| A.M. Autos (Ringwood) Ltd | Wholesale & retail | 2013 |
| A.N.E. Consultancy Services Ltd | Information & communication | 2019 |
| A.P.T. Coaches Limited | Wholesale & retail | 2001 |
| A.S. Gearys Limited | Real estate | 1940 |
| A2C Legal Group Ltd | Professional & scientific | 2025 |
| AA Holdco Ltd | Extraterritorial | 2025 |
| ABC House Limited | Wholesale & retail | 2017 |
| Above the Parapet Ltd | Professional & scientific | 2022 |
| ABR3 Ltd | Professional & scientific | 2017 |
| ABS Wholesale Limited | Professional & scientific | 1995 |
| ACA Thoroughbred Limited | Agriculture & fishing | 2021 |
| ACC Construction Ltd | Construction | 2018 |
| Accenture Song Brand UK Limited | Professional & scientific | 1998 |
| Accenture Song Production Studios Europe Limited | Information & communication | 2006 |
| Accenture Song Production Studios UK Limited | Information & communication | 2011 |
| Access 2 Children Ltd | Professional & scientific | 2024 |
| Accolade Building Group Limited | Professional & scientific | 2010 |
| Accolade Building Services Limited | Construction | 1992 |
| Accolade Windows and Conservatories LLP | | 2019 |
| Accounting Services for Business Limited | Professional & scientific | 2010 |
| Accountr Ltd | Professional & scientific | 2021 |
| Acorn Management Limited | Real estate | 2002 |
| Acornhealth & Care Limited | Health & social care | 2015 |
| Acquireasy Limited | Administrative & support | 2025 |
| Acquisys Ltd | Information & communication | 2008 |
| Acta Crane Hire Limited | Construction | 2024 |
| Actec Projects Limited | Information & communication | 2016 |
| Action Prestige Properties Limited | Real estate | 2023 |
| Active Drainage Solutions Limited | Water & waste | 2009 |
| ACV Trans Limited | Transport & logistics | 2013 |
| Adamas Limited | Information & communication | 2003 |
| ADB Supplies Ltd | Wholesale & retail | 2024 |
| Addvantage Technologies Ltd | Information & communication | 2017 |
| Adhd Working Ltd | Professional & scientific | 2024 |
| Adminique Ltd | Administrative & support | 2025 |
| Adoption Logic Ltd | Information & communication | 2026 |
| Advanced Bricklaying Limited | Construction | 2008 |
| Advanced Machining Techniques Limited | Professional & scientific | 1994 |
| Advisory Financial Services Limited | Professional & scientific | 2015 |
| Ae&I Properties Ltd | Construction | 2021 |
| AEP Healthcare Ltd | Health & social care | 2025 |
| Aerialview Limited | Information & communication | 2018 |
| Afendi World Limited | Wholesale & retail | 2022 |
| African Impact Sales and Marketing Limited | Administrative & support | 2021 |
| After Sales Team Ltd | Households | 2019 |
| AG Project Group Ltd | Professional & scientific | 2025 |