| Tomorrows Business Limited | Administrative & support | 1998 |
| Tony Nijhuis Designs Ltd | Wholesale & retail | 2010 |
| Touring Services Limited | Administrative & support | 2008 |
| Town & Country Crushers Limited | Administrative & support | 2005 |
| Town House Hastings Limited | Hospitality | 2012 |
| Transformational Business Network | Other services | 2003 |
| Transparent Financial Associates Limited | Financial services | 2020 |
| Transparent Mortgage Services Ltd | Financial services | 2019 |
| Travel Source Ltd | Administrative & support | 2022 |
| Trenchline Utilities Limited | Water & waste | 2008 |
| Trojan Groundworks (Hastings) Limited | Construction | 2009 |
| Trojan Group Plant Ltd | Construction | 2021 |
| Trojan Tree Surgeons & Countryside Services Ltd | Construction | 2024 |
| Trust Technical Solutions Limited | Information & communication | 2006 |
| Tspm Limited | Real estate | 2020 |
| TWB Productions Limited | Arts & recreation | 2008 |
| Tyrer-Lomas Property Ltd | Real estate | 2025 |
| U & M Partners LLP | | 2016 |
| U&M Management Ltd | Real estate | 2018 |
| U.K. Property Investment Corporation Limited | Construction | 1987 |
| U2 Investments Limited | Real estate | 2026 |
| U2 Management Ltd | Real estate | 2018 |
| U2 Partners LLP | | 2016 |
| UK Progressive Property Ltd | Real estate | 2016 |
| Umbrella Corporation Limited | Wholesale & retail | 2008 |
| Universal Wellness Group Limited | Health & social care | 2025 |
| Urban House (Brighton) Limited | Construction | 2006 |
| USL Investment Limited | Real estate | 2022 |
| USL Property Management LLP | | 2022 |
| VAL Investment Holdings Limited | Real estate | 2025 |
| Van East Associates Limited | Professional & scientific | 1998 |
| Vantage Point Limited | Administrative & support | 2009 |
| Vassan Holdings Limited | Professional & scientific | 2010 |
| Vassan Investments LLP | | 2020 |
| Vassan Ltd | Hospitality | 2005 |
| Vassan Properties Ltd | Real estate | 2020 |
| Vassan Residential Properties Limited | Real estate | 2023 |
| Vassan Ventures LLP | | 2020 |
| Venlet Limited | Wholesale & retail | 2011 |
| Venture 66 Ltd | Real estate | 2025 |
| Venus Properties Sussex Limited | Real estate | 2026 |
| Vermillion Homes Limited | Real estate | 2023 |
| Vermillion Properties Limited | Real estate | 2026 |
| Vermillion Property Services LLP | | 2023 |
| Viabell Limited | Information & communication | 2003 |
| Vicious Tiger Ltd | Information & communication | 1985 |
| Victory White Collar Events Limited | Administrative & support | 2015 |
| Village Close Properties Limited | Households | 2025 |
| Vittoria Solutions Ltd | Administrative & support | 2017 |
| Vizbea Ltd | Professional & scientific | 2023 |
| Vizioz Limited | Information & communication | 2009 |
| Wadham Rentals LLP | | 2024 |
| Webb London Limited | Administrative & support | 2014 |
| Wellington Financial Services Limited | Financial services | 2024 |
| Wellness Warehouse Ltd | Arts & recreation | 2022 |
| West Kensington Property Ltd | Real estate | 2018 |
| West Kensington Property Management LLP | | 2021 |
| Westerleigh Estates Limited | Construction | 2016 |
| Westonhouse Property Limited | Real estate | 2003 |
| WF Property Holdings Limited | Real estate | 2020 |
| Whiskey Ginger Limited | Extraterritorial | 2014 |
| Whistler Close Management Limited | Households | 2016 |
| White Lodge Association Limited | Other services | 1952 |
| Whiteleas Estates Limited | Real estate | 2019 |
| Whiting Properties Ltd | Real estate | 2021 |
| Whiting Refurbishments Ltd | Construction | 2024 |
| Whitton Homes Limited | Construction | 2016 |
| Wholehouse Ventilation Limited | Construction | 2011 |
| Wilder Life Wellbeing CIC | Education | 2019 |
| Williston Lake Enterprises Ltd | Professional & scientific | 2020 |
| Winston Property Developments LLP | | 2016 |
| Wokson Studios Limited | Manufacturing | 2017 |
| Wood's Arboriculture & Fencing Limited | Construction | 2015 |
| WW Financial Market Services Limited | Financial services | 2010 |
| Wyburd & Company Limited | Extraterritorial | 2013 |
| Wylie Construction Ltd | Construction | 2018 |
| Yellow Door Investment Ltd | Real estate | 2016 |
| Yellow Roof Investment Ltd | Real estate | 2020 |
| Your Property Partnership LLP | | 2017 |
| Zeal Properties LLP | | 2018 |
| Zeroh Design Ltd | Arts & recreation | 2007 |
| ZES Property Management LLP | | 2022 |
| Zeus 88 Property Ltd | Real estate | 2017 |
| Zeus Land Acquisitions Limited | Real estate | 2018 |