| Treetops Bookkeeping Services Limited | Professional & scientific | 2002 |
| Trison Construction Limited | Construction | 2021 |
| True Sporting Colours Group Limited | Wholesale & retail | 2021 |
| Tsai Shen Property Ltd | Real estate | 2022 |
| TT Impression Ltd | Construction | 2018 |
| Tubesheet EOT Limited | Other services | 2025 |
| Tubesheet Limited | Wholesale & retail | 1984 |
| Turner Properties (Ripley) Ltd | Real estate | 2023 |
| Turners Nutrition Limited | Hospitality | 2015 |
| Twinsbuild Ltd | Construction | 2024 |
| Two Spotted Dogs Limited | Hospitality | 2015 |
| U Keep Learning ! Limited | Extraterritorial | 2015 |
| UK Powder Coaters (East Midlands) Limited | Manufacturing | 2014 |
| UK QMS Developments Ltd | Real estate | 2022 |
| UK Window Installations Limited | Construction | 2012 |
| Ultimate Health and Fitness Limited | Arts & recreation | 2026 |
| Umudum Ltd | Hospitality | 2023 |
| United in Design Limited | Professional & scientific | 2001 |
| Unity Store House Limited | Real estate | 2010 |
| Urban Homes Derby Ltd | Real estate | 2025 |
| Urban Plus Ltd | Construction | 2016 |
| Vanilla Circus Limited | Information & communication | 2009 |
| Vechno Ltd | Wholesale & retail | 2026 |
| Verdurejoinery Ltd | Construction | 2022 |
| Vertex Soccer Limited | Arts & recreation | 2012 |
| Vertex Soccer Tours Limited | Administrative & support | 2017 |
| Viper Shot Blasting Services Limited | Manufacturing | 2024 |
| Vitalitycraft Limited | Extraterritorial | 2020 |
| Vixen Media Studios Ltd | Real estate | 2024 |
| Vixen Productions Ltd | Information & communication | 2024 |
| VML Care Provision Ltd | Health & social care | 2023 |
| W Group Contractors Limited | Construction | 2023 |
| W Napier Holdings Ltd | Administrative & support | 2022 |
| W Napier Plant Hire Ltd | Construction | 2016 |
| W&A Financial Services Limited | Financial services | 2016 |
| W&A Maintenance Limited | Households | 2012 |
| W&A Portfolios Limited | Real estate | 2011 |
| W&A Property Management Limited | Households | 2011 |
| W.B.C. (Export Services) Limited | Administrative & support | 1995 |
| W.B.C. Property Services Limited | Households | 1997 |
| W.P. Notcutt Limited | Wholesale & retail | 1916 |
| Wagstaff and Appleton Limited | Extraterritorial | 1953 |
| Waking Vegas LLP | | 2021 |
| Walter P. Notcutt Limited | Financial services | 2023 |
| Walton & Allen Estate & Letting Agents Ltd | Real estate | 2016 |
| Waring WMG Limited | Other services | 2019 |
| Warner Vehicle Service Limited | Wholesale & retail | 2005 |
| Waterford Property Developments Limited | Construction | 2026 |
| Watton Property Services Ltd | Construction | 2026 |
| Watts UP Fella Ltd | Construction | 2026 |
| Wave Rider Marketing Ltd | Professional & scientific | 2020 |
| WBC Export Packaging Limited | Administrative & support | 2007 |
| WD Group Investments Ltd | Financial services | 2025 |
| WE ARE Peaq Ltd | Manufacturing | 2025 |
| Weller, Rowland and Mcaloon Limited | Professional & scientific | 2026 |
| Wellspring Medical Services Ltd | Health & social care | 2025 |
| Wenporium Ltd | Wholesale & retail | 2023 |
| Westbond Ltd | Manufacturing | 1996 |
| Wheatley & Lees Limited | Construction | 2013 |
| Which Garden Plants Ltd | Agriculture & fishing | 2024 |
| White Light Events Limited | Administrative & support | 2023 |
| White Oak Joinery Ltd | Manufacturing | 2019 |
| Willersley Construction Limited | Construction | 2004 |
| Williams Hunt Group Ltd | Real estate | 2025 |
| Wilson & SON Homes Limited | Construction | 2013 |
| Wilson & SON Properties Limited | Real estate | 2018 |
| Wingfield View Management Company Ltd | Administrative & support | 2015 |
| Winn-Co Limited | Professional & scientific | 2025 |
| Woking Goldsworth Ltd | Construction | 2020 |
| Woking Poole Ltd | Construction | 2020 |
| Wolseley Hill Estates Limited | Extraterritorial | 2022 |
| Wood Farm Equestrian Limited | Agriculture & fishing | 2022 |
| Woodlands Cove Limited | Health & social care | 2025 |
| Woodwards' of Ripley Holdings Limited | Financial services | 2021 |
| Woodwards' of Ripley Limited | Financial services | 1999 |
| Wowmau Limited | Wholesale & retail | 2019 |
| Wrightway BIN Cleaning Services Ltd | Administrative & support | 2020 |
| Wyndham Installations Limited | Construction | 2023 |
| XPH Services Limited | Wholesale & retail | 2010 |
| Yana Alpacas Ltd | Agriculture & fishing | 2017 |
| Yeomans (Services) Limited | Construction | 2011 |
| Yihua Life (UK) Ltd | Wholesale & retail | 2018 |
| Your Life Equity Release Ltd | Financial services | 2024 |
| Your Property Ladder Ltd | Real estate | 2010 |
| Yusuf 23 INT Ltd | Hospitality | 2026 |
| Zeyda Limited | Wholesale & retail | 2021 |
| ZIG Autos Ltd | Wholesale & retail | 2026 |
| ZIG Inc Limited | Wholesale & retail | 2022 |
| Zindabajar Kitchens Ltd | Hospitality | 2026 |
| Zutron UK Ltd | Professional & scientific | 2009 |