| Amiga Fire and Security Limited | Construction | 2011 |
| Amiga Telecom Limited | Wholesale & retail | 2007 |
| AMX Limited | Real estate | 2001 |
| AN Testing & Commissioning Limited | Construction | 2025 |
| Anderway Limited | Construction | 1997 |
| Andrew Liyanage & Associates Limited | Financial services | 2006 |
| Andrew Phillips Associates Limited | Professional & scientific | 2011 |
| Andrews Excavations Limited | Transport & logistics | 2003 |
| Andrews Tipper Hire Limited | Transport & logistics | 2006 |
| Angry Grape Limited | Transport & logistics | 2006 |
| Animal Instincts Creative Limited | Information & communication | 2025 |
| Anirose Limited | Real estate | 2021 |
| Annette & Steve Design Creative Limited | Professional & scientific | 2009 |
| Ansapsm Ltd | Real estate | 2026 |
| Anytask Ltd | Wholesale & retail | 2019 |
| Apditude Rail Limited | Real estate | 2018 |
| Apex Carpet Cleaning Limited | Administrative & support | 2019 |
| Aquafix Heating & Plumbing Limited | Construction | 2004 |
| AR Heating & Property Services Ltd | Construction | 2025 |
| Arbiter Risk Corps Limited | Financial services | 2023 |
| Arblaunch Ltd | Wholesale & retail | 2021 |
| Arcmore Engineering Limited | Manufacturing | 2003 |
| Argutus Gardens Ltd | Administrative & support | 2023 |
| Arid Roofing Services Ltd | Construction | 2017 |
| Arielle Company Limited | Administrative & support | 2003 |
| Arms Apiaries Ltd | Agriculture & fishing | 2025 |
| Arpee Consulting Limited | Financial services | 2025 |
| Arras Estimating & Surveying Limited | Professional & scientific | 2012 |
| Art Still Ltd | Construction | 2018 |
| Artimouse Ltd | Professional & scientific | 2005 |
| Asbestos Action Limited | Professional & scientific | 2022 |
| Ashtan Joinery Limited | Manufacturing | 2025 |
| ASK Plumbing & Heating Centre Limited | Construction | 2003 |
| ASL Property Investments Ltd | Real estate | 2021 |
| ASL Trades Ltd | Wholesale & retail | 2023 |
| Aspire Custom Build Ltd. | Construction | 2022 |
| Aspire Designer Homes (Broadstairs) Ltd | Construction | 2026 |
| Aspire Designer Homes (Medway) Ltd | Construction | 2021 |
| Aspire Designer Homes (Sussex) Ltd | Construction | 2025 |
| Aspire Designer Homes (Whitstable) Ltd | Construction | 2021 |
| Aspire Designer Homes Ltd | Construction | 2018 |
| Aspyre Cleaning Ltd | Wholesale & retail | 2024 |
| Aston Jacobs Limited | Construction | 2010 |
| Astounding Battersea Ltd | Wholesale & retail | 2020 |
| AT Your Service (Kent) Limited | Health & social care | 2003 |
| Aura Ultrasound Ltd | Health & social care | 2026 |
| Automotive Correction Limited | Wholesale & retail | 2023 |
| Autospray Solutions Limited | Wholesale & retail | 2014 |
| Autotech Kent Car Sales (Cranbrook) Ltd | Wholesale & retail | 2015 |
| Avaani Holdings Ltd | Financial services | 2023 |
| AVP Management Limited | Households | 2013 |
| Aylesborne Holdings Ltd | Financial services | 2025 |
| Aylesford Body Repair Centre Limited | Wholesale & retail | 1995 |
| Aylesford Bulls Rugby Football Club Limited | Arts & recreation | 2012 |
| Aylesford Community Trust CIC | Hospitality | 2019 |
| Aylesford Couriers Ltd. | Transport & logistics | 2014 |
| Aylesford Enterprises Limited | Households | 2022 |
| Aylesford Heritage Limited | Mining & quarrying | 2013 |
| Aylesford Mining Limited | Administrative & support | 2016 |
| Aylesford Motorhome Hire Limited | Administrative & support | 2018 |
| Aylesford Park Limited | Construction | 2026 |
| Aylesford Pre-School Limited | Education | 2018 |
| Aylesford Priory Limited | Wholesale & retail | 2008 |
| Aylesford Self Storage Ltd. | Transport & logistics | 2014 |
| Aylesford TC Limited | Other services | 2022 |
| Aylesford Tyre and Auto Centre Ltd | Wholesale & retail | 2015 |
| Aylesford Village Club Limited | Hospitality | 2024 |
| Aylesnax Vending Ltd | Wholesale & retail | 2025 |
| Ayokah Foods and Services UK Ltd | Wholesale & retail | 2024 |
| B D Flooring Limited | Construction | 2013 |
| B&I SIB Ltd | Transport & logistics | 2023 |
| B-Hive Property Ltd | Real estate | 2019 |
| B2BSG Solutions Ltd | Administrative & support | 1999 |
| Baltic Wharf (Maidstone) Limited | Real estate | 2009 |
| Bankside Property Solutions Limited | Construction | 2019 |
| Barkemp Construction Limited | Construction | 2008 |
| Barkemp Groundworks Limited | Extraterritorial | 2013 |
| Barr Property Limited | Real estate | 2020 |
| Barrington SEO Ltd | Professional & scientific | 2024 |
| Barry Hawkins Snooker Limited | Arts & recreation | 2013 |
| Basra Property Management Limited | Real estate | 2014 |
| Bathgate Estates Ltd | Construction | 2024 |
| Baumit Ltd | Wholesale & retail | 2012 |
| BBQ Ventures Ltd | Wholesale & retail | 2016 |
| BCL Civil Engineering Limited | Administrative & support | 2022 |
| BD Lets Ltd | Real estate | 2025 |
| Bddg Holdings Limited | Financial services | 2024 |
| Bdhomesuk JV2 Ltd | Real estate | 2023 |
| Bdhomesuk JV3 Ltd | Real estate | 2024 |
| Bdhomesuk JV4 Ltd | Real estate | 2025 |
| Bdhomesuk Ltd | Construction | 2016 |
| Bdhomesuk SPV Ltd | Real estate | 2021 |
| Bdtech Services Ltd | Information & communication | 2024 |
| BE Beautifully Clean Ltd | Administrative & support | 2020 |
| BE the Lighthouse Ltd | Other services | 2021 |
| Be-Well International Ltd | Wholesale & retail | 2019 |
| Beach Properties Limited | Real estate | 2021 |
| Beanology Limited | Hospitality | 2024 |
| BEE Herd Ltd | Administrative & support | 2019 |
| Bee's Care Agency Limited | Health & social care | 2014 |