| Sheerstock Park Estates Limited | Construction | 2018 |
| Sherman Landscapes Limited | Administrative & support | 2025 |
| Shop-Incognito Ltd | Wholesale & retail | 2021 |
| Simurg Capital Partners Ltd | Financial services | 2018 |
| SJM Tree Surgery Limited | Agriculture & fishing | 2018 |
| SKL Surveyors Limited | Professional & scientific | 2024 |
| Smart Global Privacy Limited | Other services | 2019 |
| South Holland Growing & Packing Ltd | Agriculture & fishing | 2025 |
| Southern Plant Works Ltd | Professional & scientific | 2025 |
| Sports Developments LLP | | 2005 |
| Stackmonster.Io Limited | Information & communication | 2025 |
| Stephen Dyer Property Ltd | Other services | 2022 |
| Strict Mode Ltd. | Information & communication | 2022 |
| Suitable People Limited | Administrative & support | 2024 |
| Supersonics Audio Systems Limited | Extraterritorial | 2011 |
| Surrey Wing Chun Ltd | Education | 2018 |
| Sussex BRM Ltd | Construction | 2024 |
| Sussex Crisp Company Limited | Manufacturing | 2017 |
| Sussex Hearths Ltd | Construction | 2022 |
| Sussexmed Ltd | Information & communication | 2019 |
| Sycamore Realty Holdings Ltd | Financial services | 2021 |
| Sycamore Realty Limited | Real estate | 2013 |
| T.D. Business Services Limited | Administrative & support | 2003 |
| T.G. Peille Limited | Professional & scientific | 2003 |
| Taralandia Ltd | Information & communication | 2020 |
| Tararaboom Ltd | Information & communication | 2018 |
| Taurus Incorporated Limited | Construction | 2021 |
| Teal Home and Gifts Ltd | Wholesale & retail | 2016 |
| TGR Plastering Ltd | Construction | 2026 |
| THE Artful Grocers Ltd | Wholesale & retail | 2021 |
| THE B & N Bar Ltd | Other services | 2025 |
| THE Banks Tea Company Limited | Manufacturing | 2023 |
| THE Community Nursery Salehurst Ltd | Health & social care | 2025 |
| THE Content Bureau Limited | Information & communication | 2013 |
| THE Cutting Garden Limited | Wholesale & retail | 2004 |
| THE Floral Boutique Limited | Wholesale & retail | 1997 |
| THE Garden Landscapers (Consultancy) Limited | Professional & scientific | 2026 |
| THE Garden Landscapers Ltd | Administrative & support | 2013 |
| THE Happy Forest Limited | Agriculture & fishing | 2014 |
| THE Hide OUT (UK) Ltd | Hospitality | 2014 |
| THE Moat Practice Ltd | Health & social care | 2024 |
| THE Original HUT Company Ltd | Agriculture & fishing | 2010 |
| THE Penhurst Close Management Company Limited | Households | 1999 |
| THE Robertsbridge Bonfire Society Limited | Other services | 1997 |
| THE Robertsbridge Cellar Limited | Wholesale & retail | 2025 |
| THE Taddie Barn Ltd | Hospitality | 2008 |
| THE Travel Concept Limited | Administrative & support | 2006 |
| THE Wellington Square Business Centre Ltd | Real estate | 1998 |
| THE White Dog Property Limited | Real estate | 2016 |
| THE White Dog Public House Limited | Hospitality | 2011 |
| Theatre South | Arts & recreation | 2014 |
| Thomas Finance Limited | Administrative & support | 2018 |
| Thurstans Construction Ltd | Construction | 2021 |
| Tollgate (Staplecross) Limited | Households | 2001 |
| Trans Trade Consult Ltd | Extraterritorial | 2014 |
| Transorganisation Dynamics Ltd | Professional & scientific | 2008 |
| TWB Medical Ltd | Administrative & support | 2019 |
| Ultimate Dredging Solutions Limited | Construction | 2019 |
| Umac Design Limited | Arts & recreation | 2008 |
| Unburden Hub Ltd | Professional & scientific | 2025 |
| Vectra Software Ltd | Information & communication | 1996 |
| Ventavolt Ltd | Manufacturing | 2024 |
| Ventrex Consulting Limited | Professional & scientific | 2025 |
| Vincent Reed Limited | Manufacturing | 2003 |
| Vinehall Business Centre Limited | Real estate | 2021 |
| Vita Nova Health Ltd | Wholesale & retail | 2025 |
| Vitaforte Ltd | Extraterritorial | 2022 |
| Watts UP Solar Ltd | Construction | 2010 |
| Wave Rider Charters Ltd | Transport & logistics | 2026 |
| Weald Interiors Ltd | Construction | 2012 |
| Wealden Construction (South East) Limited | Construction | 2019 |
| Wellesley SG Limited | Information & communication | 2004 |
| White Dog Events Limited | Other services | 2017 |
| White Dog Tipi Ltd | Hospitality | 2017 |
| White Horse (Silverhill) Limited | Hospitality | 2005 |
| Wild About Mushrooms Ltd | Wholesale & retail | 2012 |
| Wild Flora Bridal Limited | Wholesale & retail | 2018 |
| Willgeefx Ltd | Education | 2026 |
| Wordwise Coaching Limited | Professional & scientific | 2006 |
| Work Your Way Ltd | Administrative & support | 2020 |
| Xanadu Stud Ltd | Agriculture & fishing | 2018 |
| XL Global Co Ltd | Wholesale & retail | 2019 |
| Your Space Float Ltd | Other services | 2025 |
| Youvsyouclothing Ltd | Wholesale & retail | 2025 |
| Zenith South East Roofing Ltd | Construction | 2025 |
| Zeppy Certification Limited | Professional & scientific | 2024 |