| Touchline FC Ltd | Information & communication | 2018 |
| Touchpoint Mortgages Ltd | Professional & scientific | 2023 |
| Tour Surfer Ltd | Administrative & support | 2020 |
| Towncross Engineering Limited | Manufacturing | 1989 |
| TP & J Project Management Services Ltd | Professional & scientific | 2020 |
| TPC and Sons Construction Limited | Construction | 2025 |
| Trackwize Limited | Information & communication | 2018 |
| Traditional Roofing of Sussex Limited | Construction | 2003 |
| Trafalgar Court (Woodlands Avenue) Limited | Households | 1995 |
| Trafalgar Estate Management Ltd | Real estate | 2016 |
| Transformu Online Coaching Limited | Education | 2023 |
| Transvac Services (Worldwide) Limited | Professional & scientific | 1994 |
| Trend Clad Ltd | Construction | 2024 |
| Trigear Manufacturing Limited | Professional & scientific | 2014 |
| Trio Consultancy Limited | Professional & scientific | 2005 |
| Triumph Dorset Ltd | Wholesale & retail | 2020 |
| Tronix (UK) Limited | Wholesale & retail | 2007 |
| True Adapt Limited | Construction | 2024 |
| True Home Solutions Ltd | Construction | 2025 |
| TRUE24M Ltd | Construction | 2023 |
| Truleigh Manor Firework Company Limited | Wholesale & retail | 2012 |
| Trumpington ST Dental Practice Ltd | Health & social care | 2010 |
| TRY Energy Training Limited | Education | 2023 |
| TS Racing Ltd | Arts & recreation | 2025 |
| TT Driveways & Patios Ltd | Construction | 2018 |
| Tudor Management Consultants Limited | Real estate | 1970 |
| Turn Outdoors Ltd | Wholesale & retail | 2020 |
| Turquaz Limited | Wholesale & retail | 1994 |
| Turret House Limited | Extraterritorial | 1960 |
| Twelve Seconds Ltd | Information & communication | 2023 |
| Twenty Music Roots Ltd | Arts & recreation | 2019 |
| TWENTY5TWENTY6 Limited | Arts & recreation | 2008 |
| Twinkle and Ting Ltd | Administrative & support | 2004 |
| Twist Creative London Limited | Professional & scientific | 2018 |
| TWW Solutions Ltd | Professional & scientific | 2023 |
| UCS Global Limited | Extraterritorial | 2010 |
| UK AXE Throwing Ltd | Arts & recreation | 2022 |
| UK Leathercare Ltd | Manufacturing | 2026 |
| UNIT24PERFORMANCE Ltd | Wholesale & retail | 2022 |
| Urbium Research Ltd | Construction | 2019 |
| Uzovic Limited | Transport & logistics | 2015 |
| VA Remedial Ltd | Wholesale & retail | 2022 |
| Vacant Property Protection Ltd | Extraterritorial | 2013 |
| Vacfit Limited | Professional & scientific | 2011 |
| Valeside Keep Residents Management Company Limited | Real estate | 2016 |
| Valley Gardens Forum Community Interest Company | Other services | 2019 |
| Vanilla White Hairdressers Limited | Other services | 2023 |
| Vanstian Limited | Construction | 1975 |
| Vantage Marine Limited | Manufacturing | 2011 |
| Varza Ventures Ltd | Construction | 2026 |
| Vaulted-Tcg Ltd | Wholesale & retail | 2026 |
| Vector 3D Ltd | Wholesale & retail | 2019 |
| Vehicle Visuals Ltd | Administrative & support | 2009 |
| Venti Solutions Ltd | Wholesale & retail | 2021 |
| Vermont Ventures Ltd | Financial services | 2013 |
| Vertiprint Ltd | Manufacturing | 2026 |
| Vertus Associates Limited | Professional & scientific | 2024 |
| Vertus Ltd | Professional & scientific | 2016 |
| Verve Homecare Sussex Ltd | Health & social care | 2022 |
| Victoria Place RTM Company Limited | Households | 2010 |
| Vince in Person (VIP) Ltd | Transport & logistics | 2025 |
| Vincent Accountancy & Taxation Services Limited | Professional & scientific | 2000 |
| Vineyards Close (Washington) Limited | Households | 2022 |
| Vinum Veritas Limited | Wholesale & retail | 2026 |
| Vira Energy Ltd | Energy | 2023 |
| Virgo Ventures Limited | Construction | 2016 |
| Virtos Construction Ltd | Construction | 2016 |
| Virtual Bluesky Limited | Information & communication | 2019 |
| Virtual Innovation Ltd | Professional & scientific | 2019 |
| VISION44 Limited | Administrative & support | 2025 |
| Vista Marketing Group Ltd | Professional & scientific | 2024 |
| Vista Recruit Ltd | Administrative & support | 2020 |
| Vivalavidaloca Ltd | Education | 2026 |
| Vvbl Limited | Manufacturing | 2023 |
| VW Catering Ltd | Hospitality | 2016 |
| W J Young Ltd | Construction | 2024 |
| Wadsworth Steelwork Services Limited | Manufacturing | 2017 |
| Walberton Park Management Company Limited(The) | Households | 1982 |
| Walker Roofing Limited | Construction | 2005 |
| Wall Brothers (Sussex) Limited | Wholesale & retail | 2003 |
| Walters Haul & Heavy Ltd | Wholesale & retail | 2025 |
| Warner Clarke Services Ltd | Other services | 2018 |
| Warren Grove (Storrington) Management Company Limited | Households | 2018 |
| Warwick Barker LLP | | 2020 |
| Washstone Ltd | Wholesale & retail | 2019 |
| Watbolt Limited | Households | 1982 |
| Watchheath Limited | Agriculture & fishing | 1976 |
| Water Testing Solutions Ltd | Manufacturing | 2014 |
| Waverley Court (Freeholders) Limited | Real estate | 2017 |
| Wavetrax Systems Ltd | Manufacturing | 2025 |
| Wayman Consultancy Ltd T/A Wayman Experts Ltd | Administrative & support | 1999 |
| Wayward Films Christy Limited | Information & communication | 2023 |
| Wayward Films Limited | Information & communication | 2019 |
| WE Build the Perfect PC for YOU Ltd | Wholesale & retail | 2022 |
| WE Clad ANY Wall Ltd | Construction | 2015 |
| Weightman Consulting Ltd | Information & communication | 2024 |
| Well Stacked Ltd | Hospitality | 2025 |
| Wessex Plumbing and Heating Ltd | Construction | 2023 |
| West Kingston Residents Association Limited | Other services | 1969 |
| West Mansions Residents Association Company Limited | Households | 1948 |