| 138 Guitar Tech Ltd | Professional & scientific | 2026 |
| 14 Oak Place Management Ltd | Households | 2024 |
| 15 Lambert Management Co Limited | Real estate | 2016 |
| 175 the Street RTM Company Limited | Households | 2012 |
| 2 Black Chairs Ltd | Wholesale & retail | 2025 |
| 2 in Tents Marquee Hire Limited | Administrative & support | 2014 |
| 205 PM Ltd | Construction | 2026 |
| 24 Hour Bailiffs Limited | Administrative & support | 2011 |
| 24-7 Agencies Ltd | Administrative & support | 2024 |
| 261 Assist Global Ltd | Information & communication | 2018 |
| 261 Assist Limited | Information & communication | 2018 |
| 29 Honor Oak Park RTM Company Ltd | Hospitality | 2011 |
| 365 Properties Ltd | Real estate | 2015 |
| 3D Displays Limited | Manufacturing | 1989 |
| 3D Drone Services Ltd | Professional & scientific | 2019 |
| 4 Barns AD Ltd | Energy | 2014 |
| 48 London Road Management Limited | Households | 2024 |
| 4MAT Data Solutions Ltd | Administrative & support | 2009 |
| 5 Queen's Parade Faversham Limited | Real estate | 2006 |
| 68 AKS Limited | Hospitality | 2025 |
| 767 Digital Ltd | Professional & scientific | 2025 |
| 8 Cedric Freehold Ltd | Extraterritorial | 2025 |
| A & J Bray Limited | Extraterritorial | 2016 |
| A J Bray & Sons Limited | Agriculture & fishing | 2008 |
| A&M Water Engineering Ltd | Manufacturing | 2026 |
| A.J Thompson & Sons Ltd | Agriculture & fishing | 2009 |
| A16 Holdings Limited | Professional & scientific | 2024 |
| A2BSEA Ltd | Transport & logistics | 2025 |
| Abbey Design Architectural Services Ltd | Professional & scientific | 2009 |
| Abbey Physic Community Garden | Other services | 2006 |
| Abezeta UK Ltd | Wholesale & retail | 2025 |
| ABL Commercial Consulting Ltd | Administrative & support | 2021 |
| ABL Commercial Holdings Limited | Administrative & support | 2024 |
| Absolute Home Care Kent Ltd | Health & social care | 2012 |
| Absolute Tackle Limited | Wholesale & retail | 2019 |
| Absolute Zero Limited | Extraterritorial | 2014 |
| Abstract Science Limited | Information & communication | 1987 |
| Academic Consulting and Education Services (Access) Limited | Education | 2018 |
| ACC Cleaning Ltd | Administrative & support | 2011 |
| Accappella Creative Limited | Professional & scientific | 2008 |
| Access ALL Events Limited | Wholesale & retail | 2024 |
| Accommodation Plus Limited | Administrative & support | 2002 |
| Ace Heating and Plumbing Kent Ltd | Construction | 2025 |
| Ace Solutions (Kent) Ltd | Transport & logistics | 2024 |
| Ackland Webb Limited | Professional & scientific | 2011 |
| Aclive Holdings Ltd | Financial services | 2023 |
| Acre Energy Limited | Energy | 2013 |
| ACT NVQ & Construction Training Limited | Education | 2026 |
| Action Talks Limited | Other services | 2018 |
| Actively Alive Limited | Other services | 2021 |
| Actrees Solar Power Limited | Energy | 2015 |
| AD Flooring(Kent) Ltd | Construction | 2018 |
| Ada's Ice Cream & Sweet Treats Limited | Manufacturing | 2025 |
| Adderley Masonry Limited | Construction | 2017 |
| Addisons Plumbing Ltd | Construction | 2026 |
| Adfinstra Limited | Professional & scientific | 2025 |
| Admire Landscapes Ltd | Administrative & support | 2022 |
| Adored Ltd | Construction | 2018 |
| Advantage Welding Services Ltd | Construction | 2024 |
| AED Consulting Ltd | Professional & scientific | 2013 |
| Afgk Home Ltd | Real estate | 2019 |
| Africa Dawn Ltd | Wholesale & retail | 2020 |
| Agfg Holdings Limited | Wholesale & retail | 2016 |
| Agri and Municipal Services Ltd | Agriculture & fishing | 2018 |
| Agricola Advisory Limited | Professional & scientific | 2012 |
| Agricultural Harvest Store Installations Limited | Manufacturing | 1979 |
| Agyo Ltd | Wholesale & retail | 2024 |
| Ahbuilder Service Ltd | Construction | 2014 |
| Aiming LOW Limited | Construction | 2021 |
| AJ Liddle Vehicle Repairs Limited | Wholesale & retail | 2025 |
| AJ Mackender Computer Services Limited | Information & communication | 2014 |
| Akita Power Ltd | Information & communication | 2016 |
| Alan Mummery Ltd | Real estate | 2021 |
| Alcroft Grange Ltd | Households | 2025 |
| Aldex Automation Ltd | Information & communication | 2025 |
| Ales & Blooms Ltd. | Hospitality | 2025 |
| Alex James Landscape Construction Ltd | Administrative & support | 2021 |
| Alexandra Mathew Property Limited | Real estate | 2021 |
| Alibri Communications Limited | Administrative & support | 2024 |
| Alibri Limited | Real estate | 2016 |
| Alinars Ltd | Wholesale & retail | 2022 |
| ALL About Behaviour Ltd | Professional & scientific | 2020 |
| ALL Project Solutions Ltd | Construction | 2023 |
| ALL Stitched UP Crafting Ltd | Wholesale & retail | 2017 |
| ALL the Extras Limited | Hospitality | 2014 |
| ALL Things Active Limited | Health & social care | 2020 |
| Allaro Holdings Limited | Financial services | 2013 |
| Allen & Smith Ltd | Professional & scientific | 2014 |
| Alpine Edge Design Limited | Professional & scientific | 2024 |
| Altun Investments Ltd | Real estate | 2022 |
| Altun Law Ltd | Professional & scientific | 2026 |
| Altun Legal Services Ltd | Professional & scientific | 2025 |
| Amax Construction Services Ltd | Construction | 2025 |
| Ambition Plus Ltd | Professional & scientific | 2010 |
| AMK Care Services Ltd | Health & social care | 2023 |
| Ammasa Properties Limited | Real estate | 1988 |
| Amore Brides Limited | Administrative & support | 2010 |
| Amron Architectural Limited | Manufacturing | 2002 |
| Amron Special Projects Limited | Extraterritorial | 2021 |
| Anderson Securities & Investment Limited | Transport & logistics | 1992 |