| Techrete (U.K.) Limited | Construction | 1989 |
| Teknetik Ltd | Wholesale & retail | 2025 |
| TEN C Engineering Limited | Professional & scientific | 2025 |
| Tender Answers Ltd | Professional & scientific | 2022 |
| Terra Secure Limited | Information & communication | 2017 |
| THE Beehive Barton Ltd | Other services | 2025 |
| THE Bi-Fold Door Company Limited | Manufacturing | 2008 |
| THE Brook Building Company Limited | Construction | 2020 |
| THE Colour Render Company Ltd | Construction | 2019 |
| THE Elsham Wold Distillery Ltd | Manufacturing | 2019 |
| THE FOX Group Property Holdings Limited | Real estate | 2025 |
| THE GUT Health Hub Limited | Health & social care | 2023 |
| THE HPO Corporation Limited | Administrative & support | 2012 |
| THE JAY GEE Trading Limited | Administrative & support | 2000 |
| THE Light Nightclub SC Ltd | Real estate | 2021 |
| THE Limes (Freehold) Management Limited | Households | 2018 |
| THE Limes (Leasehold) Management Limited | Households | 2018 |
| THE Lincolnshire Golf Academy Limited | Arts & recreation | 2019 |
| THE Little Fizz Company (Lincolnshire) Limited | Hospitality | 2024 |
| THE Loudor Limited | Hospitality | 2018 |
| THE Office of David Cameron | Administrative & support | 2016 |
| THE Old Smithy Garden Art Ltd | Manufacturing | 2024 |
| THE Pageant Boutique Limited | Wholesale & retail | 2013 |
| THE Pastry Room Ltd | Manufacturing | 2012 |
| THE Plough Inn (Binbrook) Ltd | Hospitality | 2010 |
| THE Stables B&B Ltd | Hospitality | 2020 |
| THE Studio (Lincs) Limited | Other services | 2021 |
| THE Sun Inn Pickering Ltd | Hospitality | 2010 |
| THE Yarborough Hunt Limited | Hospitality | 2005 |
| Theboredgameco Ltd | Wholesale & retail | 2023 |
| Theecomstore Ltd | Administrative & support | 2025 |
| Timaru Farming Company Limited | Agriculture & fishing | 2012 |
| Tinkers Corner Management Company Limited | Households | 2018 |
| TJB Pointing Ltd | Construction | 2024 |
| TJI Interior Limited | Professional & scientific | 2023 |
| TMS Parts UK Ltd | Wholesale & retail | 2025 |
| TOC Fire Solutions Limited | Public administration | 2024 |
| TOM Blanchard Limited | Information & communication | 2019 |
| TOM Laycock Motors Ltd | Wholesale & retail | 2002 |
| TOM Laycock Mots Ltd | Wholesale & retail | 2018 |
| TOM Laycock Property Ltd | Real estate | 2018 |
| TOM Williamson Agriculture Ltd | Agriculture & fishing | 2013 |
| TOO Good 2 Trade Ltd | Wholesale & retail | 2025 |
| Torry Limited | Manufacturing | 1998 |
| Toy Box Nursery (Scunthorpe) Limited | Health & social care | 2014 |
| TPM Project Management Ltd | Construction | 2024 |
| Trace Heating Cold Climate Winterisation Ltd | Construction | 2012 |
| Trade Secrets International Limited | Professional & scientific | 2020 |
| Transport Denderski Roman Ltd | Transport & logistics | 2017 |
| Triaxis Global Limited | Administrative & support | 2025 |
| Trout Slap Ltd | Professional & scientific | 2026 |
| TSR Building & Groundworks Ltd | Construction | 2021 |
| TSR Fires & Flues Ltd | Construction | 2023 |
| TSR Plant & Aggregates Ltd | Construction | 2026 |
| TSR Tree Services Limited | Agriculture & fishing | 2022 |
| TT Roofcare Ltd | Construction | 2023 |
| Tuckers Ice Cream Ltd | Manufacturing | 2017 |
| Tudor Croft Limited | Professional & scientific | 2025 |
| Turnerwarran & Co. LLP | | 2008 |
| Twentyseven Tattoo Ltd | Other services | 2023 |
| TWS Scotter Limited | Wholesale & retail | 2012 |
| Union Bier Ltd | Wholesale & retail | 2026 |
| Unionbrigg Ltd | Arts & recreation | 2026 |
| Unique Stove Products Limited | Wholesale & retail | 2003 |
| United Rentals UK Limited | Mining & quarrying | 2012 |
| Unspoken Exhale CIC | Health & social care | 2025 |
| Utilivista Limited | Professional & scientific | 2003 |
| Vault GY Ltd | Real estate | 2018 |
| Venturex Limited | Real estate | 1998 |
| Vianovum Limited | Education | 2017 |
| Vicarage Motors Limited | Wholesale & retail | 2001 |
| Victor Asset Finance Ltd | Financial services | 2019 |
| Vido Limited | Real estate | 2023 |
| Village Farm Developments Limited | Real estate | 2013 |
| Virtubrand Ltd | Professional & scientific | 2009 |
| VL Social Care Services Ltd | Health & social care | 2013 |
| Voortrekker Biltong Ltd | Hospitality | 2019 |
| Vos&Co Limited | Professional & scientific | 2025 |
| W. H. Strawson (Farms) Limited | Agriculture & fishing | 1968 |
| W.H. Strawson (Farms) Holdings Limited | Financial services | 2018 |
| Waddingham Land Limited | Agriculture & fishing | 2014 |
| Wainwright Furniture Ltd | Wholesale & retail | 2017 |
| Walcott Business Services Limited | Extraterritorial | 2003 |
| Walker Automotive Solutions Limited | Wholesale & retail | 2017 |
| Walters GY Ltd | Real estate | 2018 |
| Wasp Sports Supplies Limited | Wholesale & retail | 2013 |
| Waste Software Limited | Information & communication | 2020 |
| Waste Technical Ltd | Professional & scientific | 2015 |
| Water GAS & Drainage Ltd | Construction | 2015 |
| Waters Edge 1960 Limited | Extraterritorial | 2014 |
| Wavecraft Limited | Professional & scientific | 2013 |
| Waymaker Solutions Limited | Financial services | 2017 |
| Wealth and Bricks Limited | Real estate | 2024 |
| Webcetera UK Ltd | Information & communication | 2018 |
| Westhouse Development Limited | Real estate | 1977 |
| White Feather Property Ltd | Real estate | 2022 |
| Whitney Goldsmiths Ltd | Education | 2010 |
| Whole Crop Marketing Limited | Wholesale & retail | 2008 |
| Wilby's Sales & Repairs Limited | Wholesale & retail | 1984 |
| Wilcar Associates Ltd | Professional & scientific | 2014 |