| THE Ealing Club CIC | Arts & recreation | 2011 |
| THE Elverston Agency Limited | Wholesale & retail | 2012 |
| THE Fitting Companies Limited | Construction | 2018 |
| THE Global Enterprise Consultancy Ltd | Professional & scientific | 2019 |
| THE Gunnersbury Museum and Park Development Trust | Arts & recreation | 2014 |
| THE Hidden Rail Limited | Wholesale & retail | 2026 |
| THE International Federation of Aromatherapists | Administrative & support | 2015 |
| THE Last Line by ZOE Ltd | Professional & scientific | 2025 |
| THE Ravenor Management Company Ltd | Real estate | 2021 |
| THE South India Coffee Company Ltd | Wholesale & retail | 2018 |
| THE Undscvrd, Ltd | Professional & scientific | 2018 |
| THE Works Design & Build Ltd | Construction | 2023 |
| Thompson Global Wire Solutions Limited | Wholesale & retail | 2020 |
| TM Home Improvement Services Ltd | Construction | 2022 |
| TO the Wild Ltd | Information & communication | 2019 |
| Tofta Loch Ness Limited | Real estate | 2021 |
| Tohow Trading Ltd | Wholesale & retail | 2017 |
| Toran Consulting Limited | Professional & scientific | 2016 |
| Trading Pubco Ltd | Hospitality | 2024 |
| Trans Oceanic Limited | Transport & logistics | 2020 |
| Travel Time Global Ltd | Administrative & support | 2014 |
| Trewarden ROW Estate Ltd | Real estate | 2019 |
| Tribelike Ltd | Manufacturing | 2015 |
| Trident Management Ltd | Administrative & support | 2026 |
| TRJ Investments Limited | Real estate | 2025 |
| Troubleshooter Accounting Ltd | Administrative & support | 2020 |
| Tunecar Solutions Ltd | Wholesale & retail | 2024 |
| Tuppers Law Limited | Professional & scientific | 2015 |
| Two Freeland Road Limited | Households | 1986 |
| U2JN Investments Limited | Real estate | 2022 |
| Ukangola Consular, Visa & Travel Services Ltd | Administrative & support | 2012 |
| Ultraglade Limited | Professional & scientific | 1989 |
| Unherd Studios Limited | Professional & scientific | 2024 |
| Unidido Services Ltd | Administrative & support | 2022 |
| Unitedkingdompr Limited | Information & communication | 2025 |
| Unleashed Clothing Ltd | Wholesale & retail | 2023 |
| Unleashed Coaching Ltd | Education | 2023 |
| V E Catering Ltd | Hospitality | 2018 |
| Valkyrie International Ltd | Professional & scientific | 2024 |
| Van Martin Associates & Co. Limited | Construction | 1987 |
| Vansittart Investment Company | | 1985 |
| VCO Interiors & Exhibitions Limited | Administrative & support | 2023 |
| Velvet Properties Two Limited | Real estate | 2025 |
| VFX Tools Ltd | Information & communication | 2022 |
| Victoria House (Eaton Rise) Management Limited | Households | 1987 |
| Villier Bars Ltd | Real estate | 2023 |
| Vinsam Limited | Professional & scientific | 2005 |
| Virtualtto Ltd | Information & communication | 2025 |
| Vitsky Ltd | Manufacturing | 2020 |
| Volpino Ltd | Hospitality | 2016 |
| W&L Barber Ltd | Other services | 2020 |
| W5 Consultancy Ltd | Administrative & support | 2024 |
| W5 Electrical Ltd | Construction | 2013 |
| W5 London Ltd | Real estate | 2019 |
| Waite & SON Limited | Construction | 1936 |
| Warrens Shoes and Designer Wear Ltd | Wholesale & retail | 2026 |
| West (Hotels) Ltd | Real estate | 2018 |
| West Beach Hotel Limited | Hospitality | 2010 |
| West Five Investments Limited | Real estate | 2024 |
| West London Accommodation Ltd | Real estate | 2025 |
| Westway Renovations & Rentals Ltd | Real estate | 2023 |
| Westways Freehold Management Company Limited | Real estate | 2008 |
| What a Racket Limited | Administrative & support | 2001 |
| White Project Managing Limited | Construction | 2017 |
| Wholesale and FIX Ltd | Construction | 2022 |
| Windmill Convenience Store Ltd | Wholesale & retail | 2016 |
| Wise & Logan Ltd | Wholesale & retail | 2025 |
| Wise Holdings Ltd | Real estate | 2019 |
| Wordglobal Ltd | Information & communication | 2013 |
| Wysiwyg Painting Limited | Information & communication | 2007 |
| Xcel Inspection Solutions Ltd | Professional & scientific | 2013 |
| Yamini Holding Ltd | Real estate | 2020 |
| Yedam Ltd | Hospitality | 2023 |
| Yours Gardener Ltd | Administrative & support | 2017 |
| Zamin Enterprises Limited | Hospitality | 2025 |
| Zion Care Agency Ltd | Health & social care | 2022 |