| Tweedale Developments Limited | Real estate | 2003 |
| TWENTI20 Ltd | Professional & scientific | 2020 |
| Twenty 20 Limited | Transport & logistics | 2000 |
| Twin Coil Tattoo Ltd. | Other services | 2018 |
| Twinimage Limited | Professional & scientific | 1999 |
| Twisted Knot Furniture Ltd | Wholesale & retail | 2024 |
| Tybeau Limited | Real estate | 2016 |
| TYF Engineering Limited | Professional & scientific | 2007 |
| Tyresonthemove Limited | Wholesale & retail | 2025 |
| Tyth Management Company Limited | Households | 2004 |
| Tytherington School | Education | 2014 |
| Ubon Retail Group Ltd | Wholesale & retail | 2021 |
| UBX Alderley Ltd | Arts & recreation | 2023 |
| UK Aggregates & Plant Ltd | Water & waste | 2016 |
| UK Aquaculture Ltd | Agriculture & fishing | 2025 |
| UK Audiology Ltd | Education | 2020 |
| UK Chess Challenge Limited | Administrative & support | 2016 |
| UK Fahmyco Ltd | Wholesale & retail | 2024 |
| UK Group Ltd | Extraterritorial | 2003 |
| UK NET Zero Ltd | Construction | 2023 |
| UK Podiatry Limited | Health & social care | 1999 |
| Uk-Aluminium & Plastics Ltd | Construction | 2018 |
| Ukap Property Holdings Ltd | Financial services | 2023 |
| Ultimate Blend Ltd | Health & social care | 2018 |
| Ultimate Lettings Limited | Real estate | 2025 |
| Ultimate Trading UK Limited | Construction | 1999 |
| Ultravolt SPV2 Limited | Energy | 2024 |
| Underfloor Heating Trade Supplies Limited | Wholesale & retail | 2014 |
| Underfloor Wizard Ltd | Wholesale & retail | 2022 |
| Unifica Limited | Information & communication | 2015 |
| Union ST Consulting Limited | Professional & scientific | 2013 |
| Unique Custom Jewellery Limited | Wholesale & retail | 2023 |
| Unique Nails & Spa Macclesfield Ltd | Other services | 2025 |
| Unique Nutrition Europe (UK) Limited | Wholesale & retail | 2022 |
| Unistar (UK) Limited | Real estate | 1994 |
| Unitcomms Limited | Professional & scientific | 2011 |
| United Kingdom Certification Service Ltd | Professional & scientific | 2016 |
| United Living Group Limited | Hospitality | 2025 |
| United Trade and Industry Limited | Administrative & support | 2012 |
| Uniti Limited | Extraterritorial | 2018 |
| Unknown Macc CIC | Education | 2026 |
| Upasana | Arts & recreation | 2007 |
| Upcast | Professional & scientific | 1998 |
| Upsurge Consulting Ltd | Professional & scientific | 2021 |
| Upsurge Property Holdings Ltd | Construction | 2026 |
| Upton Hall Farm Management Company Limited | Households | 2024 |
| Urban Imprint Limited | Professional & scientific | 2012 |
| Urbanacity Limited | Professional & scientific | 2010 |
| Urbane Forms Limited | Professional & scientific | 2004 |
| Utility Switch and Save Limited | Administrative & support | 2017 |
| UTL Enterprises Ltd | Wholesale & retail | 2021 |
| V & SJW Interiors & Exteriors Ltd | Wholesale & retail | 2016 |
| V Bar (Stoke) Limited | Hospitality | 2026 |
| V Team Valeting Ltd | Other services | 2019 |
| V V Brown Ltd | Professional & scientific | 2008 |
| V10 Noodle Bar Limited | Hospitality | 2016 |
| Vacuum Precision Resources Limited | Professional & scientific | 1999 |
| Vale Construction Limited | Construction | 2004 |
| Vale Inn Limited | Hospitality | 2008 |
| Valerie Moss Design Limited | Manufacturing | 2020 |
| Valid Insight Ltd | Professional & scientific | 2013 |
| Valkyrie Aerospace Ltd | Manufacturing | 2017 |
| Valor Media Limited | Information & communication | 2013 |
| Valstone UK Holdings Limited | Professional & scientific | 2022 |
| Value Catalyst CIC | Other services | 2026 |
| Valuemaxess Limited | Professional & scientific | 2011 |
| VAM Marketing Ltd | Manufacturing | 2019 |
| Vanguard Pumps Limited | Manufacturing | 2007 |
| Vanity Nails and Beauty Ltd | Other services | 2016 |
| Vantage Valeting Limited | Administrative & support | 2014 |
| Vape.Parts Limited | Wholesale & retail | 2020 |
| Varah Properties Limited | Real estate | 2017 |
| Varex Bioscience Limited | Professional & scientific | 2026 |
| Variety Fitness Ltd | Arts & recreation | 2020 |
| Vault Capital Group Ltd | Financial services | 2021 |
| Vecna Couriers Ltd | Transport & logistics | 2026 |
| VEE24 Limited | Administrative & support | 2005 |
| Velleda Energy Limited | Construction | 2011 |
| Venauk Company Limited | Real estate | 2022 |
| Venauk Consultants Limited | Professional & scientific | 2024 |
| Venn Digital Limited | Information & communication | 2010 |
| Ventas Limited | Real estate | 2001 |
| Venture Asset Management Limited | Financial services | 1996 |
| Venture Internet Ltd | Information & communication | 2011 |
| Venturepulse Limited | Real estate | 1991 |
| Verathai Limited | Hospitality | 2005 |
| Verb Limited | Construction | 2022 |
| Vercas Limited | Other services | 2004 |
| Verdant Earth Ltd | Administrative & support | 2025 |
| Verdi Limited | Real estate | 1985 |
| Verghese Investments Limited | Financial services | 2021 |
| Verghese Property Limited | Real estate | 2020 |
| Verghese Spine Limited | Health & social care | 2018 |
| Veriland Consulting Ltd | Information & communication | 2012 |
| Vernons Country & Coastal Retreats Ltd | Hospitality | 2025 |
| Vernova Healthcare Community Interest Company | Health & social care | 2007 |
| Veroclin Ltd | Professional & scientific | 2024 |
| Vertex Build Group Ltd | Construction | 2026 |
| Vertex Build Property Ltd | Real estate | 2026 |
| Vestiq Limited | Information & communication | 2026 |