| THE Dannfields House Residents Company Limited | Households | 1987 |
| THE Loft (Firle) Limited | Arts & recreation | 2007 |
| THE Marma Therapy Academy Ltd | Health & social care | 2024 |
| THE Media Design Hub Ltd | Professional & scientific | 2016 |
| THE People's Choice (Sussex) Limited | Health & social care | 2015 |
| THE Poya Project Ltd | Wholesale & retail | 2017 |
| THE Ship Newhaven Ltd | Hospitality | 2024 |
| THE Southern Combination Football League Ltd | Arts & recreation | 2022 |
| THE Stable Office Ltd | Administrative & support | 2023 |
| THE Steyne Residents Company Limited | Households | 1997 |
| THE Wall Edit Limited | Construction | 2025 |
| THE Workshop Teddington Ltd | Wholesale & retail | 2016 |
| THE World Preservation Foundation Ltd | Agriculture & fishing | 2018 |
| Thedonofdetail Ltd | Administrative & support | 2025 |
| THR (Consulting) Ltd | Professional & scientific | 2008 |
| THS Vehicle Solutions Ltd | Transport & logistics | 2025 |
| Tilly Parker Limited | Manufacturing | 2010 |
| TIM Whittington Developments LLP | | 2008 |
| Toffee Hammer Productions Limited | Information & communication | 2014 |
| Tomsetts Distribution Limited | Transport & logistics | 1997 |
| Tomsetts Group Limited | Financial services | 2024 |
| Tomsetts Services Limited | Transport & logistics | 2024 |
| Trafalgar Cars Limited | Wholesale & retail | 2023 |
| Trafalgar Estates (Southern) Limited | Real estate | 1995 |
| Trafalgar Land & Investments Limited | Real estate | 2006 |
| Tsion Systems Limited | Professional & scientific | 2011 |
| TT Motorcycle School Ltd. | Education | 2019 |
| Ttcook Ltd | Manufacturing | 2013 |
| Twtboxing Limited | Arts & recreation | 2025 |
| UK Basketball Academy Limited | Other services | 2017 |
| Ultra Design Shop Ltd | Wholesale & retail | 2019 |
| Unique Global Ideas Limited | Administrative & support | 2015 |
| Unit 4 Vehicle Calibration & Recovery Centre Ltd | Wholesale & retail | 2019 |
| USH Entertainments Ltd | Other services | 2017 |
| Vegan Idealistic Programmers Limited | Information & communication | 1998 |
| Venari Ventures Ltd | Professional & scientific | 2026 |
| Verde Sangster Consulting Ltd | Real estate | 2025 |
| Vibe (Brighton) Management Company Limited | Households | 2005 |
| Victoria Court Management (Eastbourne) Ltd | Households | 2019 |
| Villandry RTM Company Limited | Households | 2019 |
| Virgo Logistics Ltd | Transport & logistics | 2025 |
| Vissia Limited | Information & communication | 2002 |
| Vizarchi Architecture & Visualization Ltd | Professional & scientific | 2019 |
| Vodcake Limited | Wholesale & retail | 2017 |
| Vulpes Media Limited | Arts & recreation | 2019 |
| VW Beetle & SON Limited | Wholesale & retail | 2012 |
| Walser Brothers Limited | Construction | 2009 |
| WE ARE the Tree CIC | Other services | 2024 |
| WE Fit Service Centre Ltd | Wholesale & retail | 2014 |
| WE Group Sussex Limited | Professional & scientific | 2021 |
| Welbeck Court (Seaford) Limited | Households | 2000 |
| Well Connected (Sussex) Limited | Construction | 2005 |
| Wellbeing Healthcare Agency Ltd | Administrative & support | 2024 |
| Whitehawk FC First Team Ltd | Arts & recreation | 2020 |
| Whitworth Residents Freehold Company Limited | Other services | 2017 |
| Willis Heating Ltd | Construction | 2018 |
| Wilmington Court Management 2016 Ltd | Households | 2017 |
| Woodgate Accounting Services Limited | Professional & scientific | 2017 |
| Woodland Pixies Wild Art Ltd | Health & social care | 2021 |
| WSM Industries Limited | Manufacturing | 1996 |
| X1 UK Solutions Limited | Wholesale & retail | 2025 |
| Xclsv Ltd | Manufacturing | 2018 |
| Yellow Brick Tours LLP | | 2025 |
| Yousef Logistics Ltd | Administrative & support | 2026 |
| Zairo Intelligence Ltd | Information & communication | 2025 |
| Zamantec Ltd | Information & communication | 2015 |
| Zenith Soloutions Ltd | Administrative & support | 2025 |
| Zero Groupe Ltd | Construction | 2022 |
| Ziggy Construction Sussex Ltd | Construction | 2024 |