| 10 Addison Road Ltd | Real estate | 2006 |
| 10A Consulting Limited | Professional & scientific | 2026 |
| 114 Elms Crescent (Freehold) Company Limited | Professional & scientific | 2009 |
| 131 London Road Management Company Limited | Households | 2008 |
| 24 DE Cham Road Limited | Real estate | 2004 |
| 27 North Street Emsworth Limited | Households | 1993 |
| 29 Orlando Road Management Company Limited | Real estate | 1997 |
| 36 on the Quay Limited | Hospitality | 2006 |
| 39-45 Stein Road Southbourne Limited | Extraterritorial | 2003 |
| 44 Redcliffe Square Freehold Company Limited | Households | 2006 |
| 44 Trafalgar Road Ltd | Construction | 2013 |
| 7 Tring Avenue Limited | Real estate | 1984 |
| A I Mckellar Limited | Construction | 2017 |
| A&B Electrical Services (Southern) Ltd | Construction | 2009 |
| A&M’S Motors Ltd | Wholesale & retail | 2025 |
| A1 Recovery and Repairs Ltd | Transport & logistics | 2025 |
| Aascom Ltd | Administrative & support | 2020 |
| Able Task Management Ltd | Construction | 2025 |
| Absolute Carpentry Limited | Manufacturing | 2023 |
| AC Fencing Contractors Limited | Construction | 2025 |
| ACM Marine Ltd | Professional & scientific | 2019 |
| Active Stories Ltd | Arts & recreation | 2016 |
| ACTIVE8 Minds After School Clubs Limited | Education | 2015 |
| ACTIVE8 Minds Coaching Limited | Education | 2015 |
| ACTIVE8 Minds Group Limited | Financial services | 2024 |
| Adaptcommseng Ltd | Professional & scientific | 2017 |
| Addalittleconfettiuk Ltd | Wholesale & retail | 2026 |
| ADS Industrial Doors Limited | Manufacturing | 2015 |
| Adviser Business Solutions Limited | Financial services | 1999 |
| Aegis Aerial Security Ltd | Administrative & support | 2026 |
| Aerial Motion Pictures Limited | Professional & scientific | 2014 |
| AGS Quality Construction Ltd | Construction | 2007 |
| AIC (Agricultural Industrial Components) Limited | Wholesale & retail | 2010 |
| Aiim Limited | Health & social care | 2018 |
| AJS Catering (UK) Ltd | Hospitality | 2011 |
| Albert & Arthur Limited | Wholesale & retail | 2017 |
| Aleejy AI Ltd | Information & communication | 2025 |
| Alexandra Long Surgical Assisting Ltd | Health & social care | 2022 |
| Alfinex Group Ltd | Real estate | 2026 |
| ALL 4 Marine Ltd | Manufacturing | 2024 |
| ALL About the Grind Ltd | Manufacturing | 2021 |
| ALL Areas Plumbing & Heating Southern Limited | Construction | 2018 |
| ALL in the Mind Ltd | Professional & scientific | 2003 |
| Alldis Associates Ltd | Professional & scientific | 2022 |
| Allonsy Ltd | Professional & scientific | 2010 |
| Alreside Meadow LLP | | 2021 |
| Alta-Media Limited | Information & communication | 2017 |
| Alum Consulting Limited | Professional & scientific | 2013 |
| AMA South Ltd | Construction | 2024 |
| Amahart Limited | Real estate | 2001 |
| Amanda Clark Coaching & Consulting Limited | Health & social care | 2016 |
| Amanda Loverseed Illustrations Ltd | Arts & recreation | 2013 |
| Aminataclothing Limited | Wholesale & retail | 2024 |
| Angling Spirit Ltd | Agriculture & fishing | 2010 |
| Anglo-European Design Ltd | Professional & scientific | 2009 |
| Anmore Small Works Limited | Wholesale & retail | 1989 |
| Antworks Technology Limited | Information & communication | 2020 |
| Apple Cleaning Services Limited | Other services | 2002 |
| APW Developments Limited | Administrative & support | 2025 |
| Arbin Engineering Limited | Professional & scientific | 2004 |
| Arbor Yachts Ltd. | Manufacturing | 2012 |
| Ardent Engineering Southern Limited | Manufacturing | 2008 |
| Ardent Real Estate Limited | Real estate | 2025 |
| ARK Training Ltd | Education | 2023 |
| ARO Franchisees Limited | Other services | 2016 |
| Artec Engineering Limited | Manufacturing | 1964 |
| Ascending Media Limited | Professional & scientific | 2018 |
| Ascent FD Philip Poyner Ltd | Professional & scientific | 2012 |
| Ashford Print Limited | Manufacturing | 2024 |
| Aspire Electronics Ltd | Wholesale & retail | 2002 |
| ATC Scaffolding Access Limited | Construction | 2025 |
| Audax Technology Ltd | Professional & scientific | 2025 |
| Auric Solutions Limited | Manufacturing | 2000 |
| Aurifil UK Limited | Wholesale & retail | 2010 |
| Auriol Rose Ltd | Professional & scientific | 2019 |
| Authentic Indian Restaurants Ltd | Hospitality | 2015 |
| Auto Haus Sussex Ltd | Transport & logistics | 2019 |
| Auto Mechanerics Limited | Wholesale & retail | 2019 |
| Autospa Express Portsmouth Ltd | Administrative & support | 2025 |
| AW Motor Sport Limited | Wholesale & retail | 2009 |
| AWP Financial Solutions Ltd | Professional & scientific | 2012 |
| Axiom Arboriculture Ltd | Agriculture & fishing | 2025 |
| Ayelen Limited | Health & social care | 2008 |
| B&D Events Ltd | Hospitality | 2025 |
| Ballena 43 Ltd | Other services | 2019 |
| Banwell Property Management Limited | Real estate | 2025 |
| Barratt Engineering Limited | Manufacturing | 2018 |
| Bbgs Connections Ltd | Construction | 2024 |
| BE There Global (UK) Ltd. | Information & communication | 2005 |
| Beattie Business Consulting Ltd | Professional & scientific | 2024 |
| Belcher Addison Solicitors Limited | Professional & scientific | 2013 |
| Belegin IP Limited | Information & communication | 2014 |
| Berry & HOP Limited | Wholesale & retail | 2017 |
| Berry-Middleton Ltd | Construction | 1997 |
| BGT Property Ltd | Real estate | 2022 |
| BIA Electric Ltd | Manufacturing | 2022 |
| Bingham Mansfield Solicitors Limited | Professional & scientific | 2018 |
| BIO Sweep Environmental Limited | Administrative & support | 2004 |
| Biosweep Services (UK) Ltd | Construction | 2017 |
| Biosweep UK Limited | Administrative & support | 2007 |