| Tregwilym Lodge Limited | Health & social care | 1984 |
| Trent Scales Limited | Manufacturing | 1964 |
| Trentside Recruitment Ltd | Administrative & support | 2023 |
| Tring Associates Limited | Construction | 2003 |
| Tripple V @ L Limited | Health & social care | 2025 |
| Trowell Garden Centre Limited | Wholesale & retail | 1985 |
| Truck M8 Ltd | Transport & logistics | 2025 |
| Trust Electrical Connections Ltd | Construction | 2013 |
| Trust Projects Limited | Construction | 2026 |
| Trust Sustainability Limited | Professional & scientific | 2026 |
| Trust Talent Ltd | Education | 2025 |
| Trusted Facilities Management Ltd | Construction | 2019 |
| Tsdg Construction Ltd | Construction | 2021 |
| TT PUB Management Ltd | Hospitality | 2022 |
| TUK TUK Events Limited | Administrative & support | 2022 |
| TUM Group Limited | Financial services | 2024 |
| TUM Holdings Ltd | Financial services | 2019 |
| Tunexuk Ltd | Wholesale & retail | 2024 |
| Turner Solutions (Midlands) Limited | Professional & scientific | 2025 |
| TVG IT Ltd | Wholesale & retail | 2023 |
| Twinkle Stars Daycare Ltd | Health & social care | 2024 |
| TXM Ilkeston Ltd | Transport & logistics | 2025 |
| Tycas Projects Limited | Construction | 2021 |
| Ubique Safety Solutions Ltd | Professional & scientific | 2024 |
| Ugopropertymaintenance Ltd | Construction | 2026 |
| UK Festivals Group Ltd | Extraterritorial | 2024 |
| UK Festivals Limited | Administrative & support | 2015 |
| UK Stock Supplies Ltd | Wholesale & retail | 2016 |
| Ultranet Ltd | Information & communication | 2023 |
| Ultraspray Coating Specalist Ltd | Construction | 2022 |
| Unique Autos & Exports (UK) Limited | Wholesale & retail | 2010 |
| Unique Haven Property Solutions Limited | Real estate | 2017 |
| United Midland Properties Limited | Professional & scientific | 2015 |
| Upgrade Properties Ltd | Real estate | 2025 |
| Upskill Assessment and Training Limited | Education | 2008 |
| Uptown Promotions Ltd | Hospitality | 2017 |
| Urban Haven Limited | Real estate | 2005 |
| Utility Management Group Ltd | Financial services | 2020 |
| Utility Vehicle Hire Ltd | Administrative & support | 2025 |
| V & M Management Services Ltd | Administrative & support | 2019 |
| Validation TEK Limited | Professional & scientific | 2012 |
| Value Added Accountancy (Ilkeston) Ltd | Professional & scientific | 2025 |
| Value Added Accountancy Ltd | Professional & scientific | 2009 |
| Value Added Tax Services Ltd | Professional & scientific | 2016 |
| Van Centre HQ Ltd | Wholesale & retail | 2025 |
| Vanan B.V Ltd | Wholesale & retail | 2026 |
| Vantage Grants Assessors Ltd | Administrative & support | 2026 |
| Vantage Nest Estates Limited | Real estate | 2025 |
| Vehicle Wiring Products Limited | Wholesale & retail | 2002 |
| Velites Construction Limited | Construction | 2020 |
| Verdant Regeneration Limited | Construction | 2019 |
| Verumvitae GB Ltd | Wholesale & retail | 2025 |
| Viking Contracting Ltd | Construction | 2023 |
| Viking Contractors (Nottingham) Ltd | Construction | 2022 |
| Village Food Express Limited | Hospitality | 2026 |
| Vincent O'Toole Ltd | Administrative & support | 2010 |
| Vincit Limited | Wholesale & retail | 2016 |
| Vintage Vice Limited | Wholesale & retail | 2023 |
| Visser Holdings Limited | Wholesale & retail | 2023 |
| Vitesse Cleaning Solutions Ltd | Administrative & support | 2017 |
| Vivek and Irfan Limited | Wholesale & retail | 2021 |
| Vizcom Interactive Limited | Information & communication | 2005 |
| VK2 Ltd | Professional & scientific | 2020 |
| Vmqa Consultancy Services Ltd. | Professional & scientific | 2015 |
| VPK Engineering Limited | Wholesale & retail | 1995 |
| VRW Cleaning Services Limited | Administrative & support | 2023 |
| W H Fryer Ltd | Hospitality | 2026 |
| W T Plumbing & Heating Contractor Limited | Construction | 2007 |
| W.Roman Ltd | Transport & logistics | 2024 |
| Wainwright Leasing Limited | Real estate | 2024 |
| Walker & SON Proeprty Group Ltd | Real estate | 2025 |
| Walkies With Annie Limited | Professional & scientific | 2025 |
| Wall Property & Investment Ltd | Real estate | 2021 |
| Wandu Engineering Limited | Professional & scientific | 2011 |
| Wang and Zhan Limited | Real estate | 2018 |
| Ward Group Holdings Limited | Water & waste | 2019 |
| Ward Investment Group Ltd | Construction | 2020 |
| Ward Real Estate Limited | Real estate | 2019 |
| Warsop Recycling Ltd | Water & waste | 2020 |
| Warwick Directories Limited | Information & communication | 2008 |
| Watervoles Limited | Real estate | 2006 |
| Wave Alchemy Limited | Information & communication | 2011 |
| Wayne for Drains Ltd | Water & waste | 2017 |
| WD Decorating Limited | Construction | 2026 |
| WD Drywall Ltd. | Construction | 2011 |
| WD Services Midlands Ltd | Construction | 2025 |
| WE ARE FLO Ltd | Arts & recreation | 2026 |
| WE Clean IT Ltd | Administrative & support | 2019 |
| WE FIX Feet Limited | Health & social care | 2016 |
| Webster-Noble Innovations Ltd | Professional & scientific | 2025 |
| Welcometown Property Management Limited | Households | 1995 |
| Weldcraft Midlands Ltd | Manufacturing | 2019 |
| Weldon Consultancy Limited | Professional & scientific | 2018 |
| Weleda UK Ltd | Manufacturing | 1925 |
| Wellie Paws Ltd | Manufacturing | 2025 |
| Welliepals Ltd | Manufacturing | 2026 |
| Wendy Makin UK Ltd. | Wholesale & retail | 2022 |
| Wepack Ltd. | Administrative & support | 2017 |
| West END 31 Investments Ltd | Professional & scientific | 2020 |
| West Hallam Barbers Ltd | Other services | 2024 |