| Transport Manager Services Ltd | Professional & scientific | 2018 |
| Traveliyana Limited | Administrative & support | 2025 |
| Trent Energy Solutions Limited | Construction | 2018 |
| Trentmere Ltd | Hospitality | 2025 |
| Trilodex Ltd | Information & communication | 2025 |
| Triple S Club Limited | Hospitality | 2021 |
| Trivium Packaging Group UK Limited | Financial services | 1996 |
| Trivium Packaging UK Holdings Ltd. | Financial services | 2019 |
| Trivium Packaging UK Limited | Manufacturing | 1990 |
| Trivium UK Pension Trustee Ltd | Professional & scientific | 2021 |
| TS Manufacturing Limited | Manufacturing | 2024 |
| Tulear Homes Ltd | Real estate | 2019 |
| Turner Overseas Holdings Limited | Professional & scientific | 2021 |
| Turner Property Partners Ltd | Real estate | 2026 |
| Turning Leaves & SON Limited | Administrative & support | 2013 |
| TVA Styling Ltd | Wholesale & retail | 2010 |
| Tvparts.Co.Uk Limited | Other services | 2026 |
| Tvsrs Limited | Wholesale & retail | 2022 |
| Two Matts Brewing Company Ltd | Manufacturing | 2022 |
| UCM Hire Ltd | Construction | 2016 |
| UK Dream Builders Ltd | Construction | 2024 |
| UK Graders Limited | Manufacturing | 2012 |
| UK Laser Gifts Ltd | Manufacturing | 2023 |
| UK Pallets Limited | Transport & logistics | 2018 |
| UK Platinum Textiles Limited | Manufacturing | 2026 |
| Uktrady Ltd | Information & communication | 2025 |
| Ultra Build Developments Limited | Construction | 2014 |
| Umar Kashmiri Ltd | Wholesale & retail | 2025 |
| Unbelievable Traders Ltd | Wholesale & retail | 2026 |
| Unipak Holdings UK Limited | Administrative & support | 2024 |
| Unique Positive Solutions Ltd | Information & communication | 2017 |
| Uniquely Different (Reach) Limited | Real estate | 2019 |
| Universal Crane Mats Ltd | Construction | 2011 |
| Universal Events Solutions Limited | Transport & logistics | 2020 |
| Universal Group Property Ltd | Real estate | 2017 |
| Universal Piling and Construction Ltd | Construction | 1999 |
| Upac Corporate LLP | | 2014 |
| Uplift Exterior Cleaning Ltd | Administrative & support | 2026 |
| Uppermill 1958 Limited | Extraterritorial | 2013 |
| Urbaniq Technologies Ltd | Information & communication | 2023 |
| Used Cars Wahrehouse (UK) Ltd | Wholesale & retail | 2018 |
| Vale & Brown Consultancy Limited | Professional & scientific | 2020 |
| Validatethis Ltd | Information & communication | 2022 |
| Vamos Plumbing & Electrical Services 24H Ltd | Construction | 2025 |
| Vantage Golf Limited | Manufacturing | 2025 |
| Vehicle Parts (UK) Export Ltd | Wholesale & retail | 2022 |
| Velier Limited | Manufacturing | 2024 |
| VEN Homes Ltd | Construction | 2024 |
| Venezia Ashfield Ltd | Hospitality | 2024 |
| Verdantis Ltd | Information & communication | 2025 |
| Verjayne Diamond Properties Limited | Real estate | 2026 |
| Vertex CAD Limited | Professional & scientific | 2025 |
| Vesta Blinds Limited | Construction | 2021 |
| Vesta Property (Midlands) Limited | Real estate | 2024 |
| VH Projects Ltd | Construction | 2024 |
| Vickery Property Holdings Limited | Real estate | 2024 |
| Vicliff Ltd | Professional & scientific | 2016 |
| Vigho Ltd | Health & social care | 2023 |
| Vihtra Limited | Wholesale & retail | 2019 |
| Villa Nova Ltd | Wholesale & retail | 1980 |
| Vocational Education Consultancy Ltd | Education | 2015 |
| Voltwind Ltd | Professional & scientific | 2026 |
| VR International Transport Ltd | Transport & logistics | 2023 |
| VUI Construction Limited | Construction | 2022 |
| W B Stafford Limited | Construction | 2013 |
| W P Pipelines Ltd | Manufacturing | 2011 |
| Wacal Limited | Construction | 2023 |
| Waddawoo Limited | Wholesale & retail | 2017 |
| Walkman & Sons Site Services Limited | Construction | 2024 |
| Wallaces BED Centre Ltd | Wholesale & retail | 2006 |
| Wanfeng (UK) Aviation Co., Ltd | Professional & scientific | 2015 |
| Wanfeng Mlth Holdings Co., Ltd | Manufacturing | 2013 |
| Water Utility Products Limited | Construction | 2021 |
| Waterlily Oils Limited | Manufacturing | 2019 |
| Waypad Limited | Professional & scientific | 1989 |
| Weave IT Green Ltd | Administrative & support | 2023 |
| Web Wolf Limited | Information & communication | 2018 |
| Webson Knight Limited | Information & communication | 2018 |
| Webster Project Planning Limited | Professional & scientific | 2013 |
| Wekreateuk Ltd | Information & communication | 2023 |
| Whitemeadow (2024) Ltd | Manufacturing | 2024 |
| Whitemeadow Ventures Ltd | Manufacturing | 2024 |
| Wholesense Ltd | Health & social care | 2026 |
| Wild Vixen Photography Ltd | Information & communication | 2026 |
| Will Polley Trading Limited | Professional & scientific | 2016 |
| Williams Fuels Limited | Wholesale & retail | 2003 |
| Willtech Electrical Engineering Limited | Construction | 2022 |
| Wired Differently Sensory Seekers CIC | Professional & scientific | 2025 |
| Wise Ways Properties Ltd | Real estate | 2024 |
| Wjdtools Limited | Wholesale & retail | 2019 |
| WM Collections Limited | Manufacturing | 1994 |
| Woldmark Group Limited | Wholesale & retail | 2025 |
| Wonf Ltd | Hospitality | 2014 |
| WOO Hing (Notts) Limited | Hospitality | 2018 |
| Woodend ROD and Target Sports Limited | Agriculture & fishing | 2018 |
| Woodlands Farm Services Ltd | Professional & scientific | 2024 |
| Woodside Health Ltd. | Health & social care | 2017 |
| Workmansupermarket Limited | Construction | 2013 |
| Worldspan (UK) Limited | Wholesale & retail | 2008 |
| Worldspan Coastal Trading Limited | Wholesale & retail | 1993 |