| 4 White Rock Gardens Limited | Households | 2004 |
| 40 Lower Park Road Hastings Limited | Administrative & support | 2008 |
| 42-43 Marina Management Limited | Households | 2002 |
| 43 Plynlimmon Road Freehold Limited | Households | 2018 |
| 46-47 ST. James Road RTM Company Ltd | Households | 2025 |
| 48 Cornwallis Gardens Ltd | Households | 2025 |
| 49 Pevensey Road Freehold Company Limited | Households | 2018 |
| 49 Wickham Avenue Limited | Hospitality | 2003 |
| 493 Norwood Road RTM Company Limited | Households | 2005 |
| 4DOWN Distribution Limited | Manufacturing | 2006 |
| 4SIGHT Advisory Limited | Professional & scientific | 2022 |
| 5 Quarry Crescent (Hastings) Ltd | Households | 2004 |
| 5 Wellington Road Management Company Limited | Households | 2003 |
| 5 Wykeham Road Hastings Ltd | Real estate | 2021 |
| 54 Church Road Limited | Households | 2015 |
| 54 High Street Limited | Households | 2021 |
| 6 Love Sports Coaching Limited | Arts & recreation | 2014 |
| 6/7 Grand Parade (ST. Leonards on Sea) Limited | Real estate | 2014 |
| 63 Warrior Square Limited | Households | 2000 |
| 65 Warrior Square Limited | Households | 1985 |
| 7 Grosvenor Gardens Freeholders Limited | Households | 2020 |
| 7 Prospect Place Ltd | Construction | 2020 |
| 7-COMM Surveying Ltd | Professional & scientific | 2016 |
| 78-80 Warrior Square Limited | Households | 2010 |
| 81 Mount Pleasant Road (Hastings) Limited | Real estate | 2008 |
| 82 Marina Limited | Households | 2007 |
| 83A Projects Limited | Administrative & support | 2008 |
| 86 ST Helens Road Hastings Management Ltd | Real estate | 2025 |
| 88 Stonefield Road Limited | Real estate | 2019 |
| 9 Braybrooke Terrace (Hastings) Limited | Professional & scientific | 2006 |
| A & a Cleaning & Property Services Limited | Administrative & support | 2006 |
| A & F Utilities Limited | Construction | 2025 |
| A & J (Land) Ltd | Real estate | 2026 |
| A & M Podmedics Limited | Health & social care | 2010 |
| A - TEC Developments Limited | Construction | 2009 |
| A C Mayles and SON Roofing Contractors Ltd | Construction | 2015 |
| A Gaming Limited | Information & communication | 2026 |
| A I R South East Limited | Administrative & support | 2017 |
| A Kasper Production Limited | Administrative & support | 2016 |
| A&M Stylish Property Ltd | Real estate | 2019 |
| A&S Recycling (Hastings) Limited | Water & waste | 2011 |
| A&Y Fried Chicken Ltd | Hospitality | 2026 |
| A&Y Traders Ltd | Hospitality | 2026 |
| A. G. Smiles Ltd | Health & social care | 2018 |
| A. W. Gore & Co. Limited | Real estate | 2010 |
| A.P Locum Ltd | Health & social care | 2021 |
| A.R.B. Wines Ltd | Wholesale & retail | 2021 |
| A2VE Capital Advisors Limited | Administrative & support | 2000 |
| AB Interlink Ltd | Information & communication | 2025 |
| AB Roofing and Building Ltd | Construction | 2021 |
| Abacus 1066 Holdings Limited | Real estate | 2018 |
| Abacus Accounts 1066 Ltd | Professional & scientific | 2011 |
| Abbeylight Contracts Limited | Construction | 2013 |
| Abbeywest Limited | Professional & scientific | 2008 |
| Abbott & Abbott Estate Agents Limited | Real estate | 2017 |
| ABC Transport (UK) LLP | | 2005 |
| ABC Transport Limited | Administrative & support | 1999 |
| Abdtheatre EDU Limited | Arts & recreation | 2019 |
| Abduls Sons Limited | Wholesale & retail | 2026 |
| Absolute Bookkeeping Ltd | Professional & scientific | 2009 |
| Access Allround Ltd | Construction | 2020 |
| Accident Claims Specialists Ltd | Other services | 2014 |
| Accomplice Limited | Arts & recreation | 2004 |
| Ace Flooring Solutions Limited | Wholesale & retail | 2011 |
| Acer Developments South East Ltd | Construction | 2021 |
| ACF Holdings Limited | Professional & scientific | 2004 |
| Acis Business Services Limited | Professional & scientific | 2001 |
| Acrelands Ltd | Real estate | 1998 |
| Adam Barnett Architect Limited | Professional & scientific | 2012 |
| Adam Toubi Property Ltd | Real estate | 2023 |
| Adams Electrical (South East) Limited | Construction | 2025 |
| Adams Picture Library Limited | Arts & recreation | 1970 |
| Adbtheatre EDU LLP | | 2023 |
| Addeng Limited | Manufacturing | 2024 |
| Adeena Grubb Limited | Information & communication | 2022 |
| Admire Property Investment Limited | Real estate | 2019 |
| Adventure Lectures Ltd | Education | 2020 |
| Aerovive Ltd | Manufacturing | 2026 |
| Affinity Engineering Solutions Limited | Manufacturing | 2022 |
| Afrifinance Limited | Extraterritorial | 2011 |
| Afritrade London Limited | Extraterritorial | 2011 |
| Afrivibe Market Ltd | Wholesale & retail | 2025 |
| Agentic AI Labs Ltd | Information & communication | 2026 |
| Agentic Group Ltd | Financial services | 2026 |
| Agntx Ltd | Administrative & support | 2026 |
| Agri-Sky Solutions Limited | Agriculture & fishing | 2024 |
| Agyboo Ltd | Wholesale & retail | 2024 |
| AIA Cleaning Solutions Ltd | Administrative & support | 2025 |
| Air Flow Services Limited | Construction | 2006 |
| Air Source Heat Pumps Ltd | Energy | 2018 |
| Airport Angels Student Services Limited | Administrative & support | 2012 |
| Aivo Electrical & Renewables Ltd | Manufacturing | 2024 |
| AJ Carpentry South East Ltd | Construction | 2021 |
| AJ Famous Ltd | Hospitality | 2025 |
| AJS Coffee Limited | Manufacturing | 2023 |
| AK Capital Markets Limited | Administrative & support | 2017 |
| Akaran Trading Ltd | Wholesale & retail | 2018 |
| Akmol ALI Properties Ltd | Real estate | 2023 |
| Akmol Properties Ltd | Real estate | 2019 |
| Aksu Hastings Ltd | Hospitality | 2021 |