| 1066 Sales Limited | Wholesale & retail | 2005 |
| 11 Pelham Crescent (Hastings) Limited | Extraterritorial | 2014 |
| 16 Charles Square Ltd | Households | 2026 |
| 1894 Management Limited | Professional & scientific | 2020 |
| 1904 Management Limited | Households | 2023 |
| 1ST Call Agency Limited | Administrative & support | 2020 |
| 26/27 Stockleigh Road RTM Company Limited | Households | 2004 |
| 3 Rascals Limited | Real estate | 2015 |
| 355 Limited | Other services | 2017 |
| 36 Gensing Road Limited | Extraterritorial | 2000 |
| 39A Winchelsea Road Freehold Ltd | Real estate | 2025 |
| 3G Limited | Information & communication | 2001 |
| 5 Edward Road Residents Association Limited | Other services | 2001 |
| 54 Ashford Road Limited | Households | 2019 |
| 6 Coleherne Road Ltd | Households | 2004 |
| 60/62 Ashford Road Limited | Households | 2016 |
| 7HP LLP | | 2016 |
| 8 Letter Properties Ltd | Real estate | 2025 |
| 9 & 9A ST Leonards Road Limited | Real estate | 2022 |
| A Town Projects Ltd | Construction | 2020 |
| A.F.Smith Limited | Real estate | 1920 |
| A.P. Barker Limited | | 1984 |
| A4 Architecture UK Limited | Professional & scientific | 2007 |
| Abacus 25 Limited | Administrative & support | 2019 |
| Abbot Thermographic Printing Limited | Manufacturing | 2003 |
| ABC QS Services Limited | Professional & scientific | 2022 |
| Accessautonomy Ltd | Information & communication | 2020 |
| Achro Limited | Real estate | 2017 |
| Acorn Garage Doors Ltd | Construction | 2006 |
| Acre Hill Property Ltd | Financial services | 2024 |
| Acura Inventories Limited | Administrative & support | 2019 |
| AD HOC (South East) Limited | Information & communication | 2014 |
| Adamskoczek Ltd | Transport & logistics | 2023 |
| Addison and Holland Park Veterinary Clinic Limited | Professional & scientific | 2010 |
| Aeternum Bulgari (UK) Ltd | Wholesale & retail | 2025 |
| Ahelevation Limited | Administrative & support | 2024 |
| AI Survival Skills Ltd | Education | 2023 |
| Aitoc Consulting Ltd | Information & communication | 2022 |
| Aitoc Limited | Information & communication | 2021 |
| AJL Roadmarking Ltd | Administrative & support | 2000 |
| Alex Macarthur Interiors Limited | Wholesale & retail | 2012 |
| Alex Morton Consulting Limited | Professional & scientific | 2018 |
| Alex's Aquatics Ltd | Administrative & support | 2026 |
| Alileo Media Ltd | Professional & scientific | 2024 |
| ALL Together Marketing Ltd | Professional & scientific | 2025 |
| Allegria of RYE Ltd | Manufacturing | 2026 |
| Allicin International Limited | Real estate | 1999 |
| Allscore Limited | Real estate | 2000 |
| Alpine Consulting Limited | Administrative & support | 2013 |
| Alternative Point Ltd | Professional & scientific | 2010 |
| Amenity Horticultural Services Limited | Wholesale & retail | 1993 |
| Amongst Ltd. | Wholesale & retail | 2021 |
| Amsco Fire Ltd | Professional & scientific | 2010 |
| Angels 'N' Saints Limited | Other services | 2004 |
| Animate (RYE) | Health & social care | 1998 |
| ANN Ledgard Copy Limited | Information & communication | 2010 |
| Annie O'Leary Limited | Real estate | 2021 |
| Apollo Production Group Ltd | Administrative & support | 2017 |
| Appledore Canal View Management Ltd | Households | 2022 |
| ARB Forestry Limited | Agriculture & fishing | 2015 |
| Arbella House Limited | Extraterritorial | 2015 |
| Arbor Tree Surgery Ltd | Agriculture & fishing | 2018 |
| Arcturus Capital Advisors Ltd. | Financial services | 2015 |
| Arigato Japanese Cuisine Ltd | Hospitality | 2026 |
| Armour Flooring Ltd | Construction | 2020 |
| Armour Flooring RYE Ltd | Construction | 2021 |
| Arnw Developments Limited | Financial services | 2022 |
| Arrowstream Limited | Construction | 2016 |
| Art & Show Limited | Construction | 2012 |
| Artist Support Pledge | Other services | 2020 |
| Ascend Luxury Properties Ltd | Construction | 2026 |
| Ashcroft Building Services Limited | Professional & scientific | 2020 |
| Atec Pulse Limited | Hospitality | 2026 |
| Atlas Business Park Limited | Administrative & support | 1998 |
| Aubrey Halls Limited | Transport & logistics | 2025 |
| Aubrey Peck Limited | Wholesale & retail | 2020 |
| Automatic Mist & Sprinkler Company Ltd | Extraterritorial | 2013 |
| AV Design Services UK Limited | Professional & scientific | 2022 |
| Avocet Original Ltd | Arts & recreation | 2015 |
| Awav Limited | Information & communication | 2014 |
| B & S Property Services Limited | Agriculture & fishing | 2016 |
| B M S Electrical Contractors Limited | Construction | 1999 |
| B Warnes Plastering Limited | Construction | 2022 |
| Backrow Land Investment Limited | Construction | 2018 |
| Badgers Oak Veterinary Clinic Limited | Professional & scientific | 2010 |
| Barbers of RYE Ltd | Other services | 2025 |
| Baridale Limited | Professional & scientific | 1995 |
| Batten and Beam Ltd | Construction | 2022 |
| BD Investments Oxford Limited | Real estate | 2014 |
| Beach View Property (Cornwall) Limited | Real estate | 2013 |
| Beckley (Oak Tree) Management Limited | Financial services | 2014 |
| Beckley Bake Box Limited | Manufacturing | 2026 |
| Becra Limited | Wholesale & retail | 1999 |
| Beeline Cooling Solutions (North) Ltd | Manufacturing | 2012 |
| Behind the Door Designs Ltd | Professional & scientific | 2020 |
| Benso Limited | Real estate | 2020 |
| Berwick Consultancy Ltd | Information & communication | 2024 |
| Beshara Trust(The) | Education | 1987 |
| Beside the Sea Holidays Limited | Administrative & support | 2009 |
| Better Boilers Ltd | Construction | 2026 |