| 'Just the Tonic' Properties Ltd | Hospitality | 2022 |
| 100 Tall Limited | Health & social care | 2024 |
| 108 Alderney Street Management Company Limited | Real estate | 2005 |
| 110 Mulgrave Road Limited | Real estate | 2002 |
| 114/116 Revelstoke Road Management Company Limited | Households | 2026 |
| 123 Consultancy Limited | Information & communication | 2016 |
| 123 Property Limited | Real estate | 2020 |
| 1241551 B C Ltd | Education | 2025 |
| 13DRAGONSTREET Limited | Real estate | 2024 |
| 149 London Road Limited | Construction | 2019 |
| 14U Cars (Petersfield) Limited | Transport & logistics | 2013 |
| 165 Fentiman Road Management Company Limited | Households | 1983 |
| 18 Montpellier Spa Road Limited | Households | 2010 |
| 1BR Invest Limited | Wholesale & retail | 2015 |
| 1BR Limited | Wholesale & retail | 2006 |
| 1ST NRG Ltd | Construction | 2022 |
| 24A Station Road Petersfield Management Company Limited | Households | 2019 |
| 25 Lime Grove RTM Company Ltd | Administrative & support | 2014 |
| 34 Fontenoy Road Management Limited | Households | 2009 |
| 35 Cresswell Road Limited | Real estate | 2004 |
| 3K Media Limited | Information & communication | 1998 |
| 3MG Fire Protection Limited | Other services | 2007 |
| 4 Cancer Group | Health & social care | 2001 |
| 404 Souls Limited | Information & communication | 2025 |
| 64 Station Road Management Company Limited | Households | 2014 |
| 70 SRM Limited | Hospitality | 2015 |
| 75 Brondesbury Villas Limited | Real estate | 2000 |
| A G Heating Installations Limited | Construction | 2014 |
| A Great British Cake Shop Ltd | Wholesale & retail | 2021 |
| A Hyatt Contractors Limited | Construction | 2017 |
| A J D Design Limited | Professional & scientific | 2004 |
| A&G Automotive Limited | Wholesale & retail | 2026 |
| A&N Price Ltd | Hospitality | 2016 |
| A&P Collective Ltd | Information & communication | 2026 |
| A.Dieperink Ltd | Information & communication | 2022 |
| A1 Motives Ltd | Extraterritorial | 2020 |
| Aamplyfi Ltd | Professional & scientific | 2022 |
| Abek Properties Limited | Real estate | 2026 |
| Abingdon Consultancy Ltd | Professional & scientific | 2021 |
| Abitus Group Ltd | Wholesale & retail | 2025 |
| Ace Flush Facilities Limited | Administrative & support | 2015 |
| Acertus Limited | Administrative & support | 2007 |
| Acregate Building Ltd | Construction | 1999 |
| Actuate Electrical Limited | Construction | 2015 |
| Acuro Associates Ltd | Administrative & support | 2014 |
| ACW Medical Writing Ltd | Professional & scientific | 2025 |
| Adams Navigation Ltd | Professional & scientific | 2014 |
| Adaptsys Limited | Manufacturing | 2003 |
| Additive Experimental Ltd | Professional & scientific | 2020 |
| Adhurst Barns Limited | Real estate | 1999 |
| Adlabsglobal Ltd | Professional & scientific | 2024 |
| Adme Business Solutions Ltd | Information & communication | 2021 |
| ADP Property Limited | Other services | 2001 |
| Adrian Little DIP WCF Limited | Professional & scientific | 2005 |
| ADS Connections Ltd | Wholesale & retail | 2025 |
| Adventures Online Limited | Arts & recreation | 2016 |
| Aedifico Property Services Ltd | Real estate | 2022 |
| Aeripes Ltd | Information & communication | 2024 |
| AFS (Southern) Limited | Financial services | 2008 |
| Agile Commerce Group Ltd. | Information & communication | 1999 |
| AHD (Holdings) Limited | Professional & scientific | 2015 |
| AI SEO Ltd | Extraterritorial | 2015 |
| ALA Select Recruitment Limited | Administrative & support | 2025 |
| Alderton Property Surveyors Limited | Professional & scientific | 2023 |
| Aldridge & Jones Limited | Professional & scientific | 2012 |
| Algebrew Brewery Limited | Manufacturing | 2026 |
| ALI & SON Property Ltd | Real estate | 2025 |
| Alison Morrison Limited | Professional & scientific | 2011 |
| Alitex Group Limited | Financial services | 2019 |
| Alitex Limited | Manufacturing | 1965 |
| ALL Asia Trading Limited | Other services | 2010 |
| ALL Aspect Training Limited | Education | 2015 |
| ALL Trades Hampshire Ltd | Construction | 2020 |
| Alley Cats Beauty Studio (Alton) Ltd | Other services | 2026 |
| Alley Cats Beauty Studio Limited | Other services | 2005 |
| Allez UK Limited | Wholesale & retail | 2000 |
| Allincontext Limited | Information & communication | 2002 |
| Alloy Trustees Limited | Administrative & support | 2009 |
| Alloyvale Limited | Construction | 1982 |
| Allsurreyessexlogistics Limited | Transport & logistics | 2017 |
| Almax Capital Ltd | Real estate | 2015 |
| Altine Medical Solutions Limited | Health & social care | 2023 |
| Alvah Developments Limited | Professional & scientific | 2007 |
| Always Time to BE ME Ltd | Other services | 2024 |
| Amara Capital Limited | Financial services | 2019 |
| Amber Financial Consultants Limited | Professional & scientific | 2011 |
| Amelia Bouquet Garden Design Ltd | Administrative & support | 2021 |
| American Shutters Distribution Ltd | Manufacturing | 2011 |
| Amidesign Properties Limited | Real estate | 2020 |
| Amity Managed Services Ltd | Professional & scientific | 2024 |
| Amplitude Solutions Ltd | Information & communication | 2025 |
| AN4 Group Limited | Information & communication | 1989 |
| Andrews Newby Partnership Limited | Professional & scientific | 2020 |
| Angelfish Creative Design Limited | Professional & scientific | 2009 |
| Animal Crackers (Petersfield) Limited | Wholesale & retail | 2008 |
| Ann-Marie Powell Gardens Limited | Administrative & support | 2015 |
| Anna Films Limited | Information & communication | 2015 |
| Annie Haak Designs Limited | Wholesale & retail | 2010 |
| Anthology Estates Ltd | Information & communication | 2019 |
| Anytime Ventures (Aldgate) Limited | Extraterritorial | 2021 |