| Teach Nomad Ltd | Administrative & support | 2026 |
| Temple Trees Freehold Limited | Households | 2010 |
| THE Bakery & Delicatessen Limited | Wholesale & retail | 2009 |
| THE Book Fayre Ltd | Wholesale & retail | 2014 |
| THE Enchanted Meadows Limited | Other services | 2026 |
| THE English Golf Union Limited | Arts & recreation | 2005 |
| THE General Store Global Ltd | Professional & scientific | 2023 |
| THE Glenfield Partnership Ltd | Financial services | 2017 |
| THE Little Card Company Ltd | Wholesale & retail | 2013 |
| TJE Holdings Limited | Financial services | 2017 |
| Tokelove Developments Ltd | Construction | 2021 |
| Touring Tailor Ltd | Information & communication | 2024 |
| Traditional English Pubs Limited | Hospitality | 2005 |
| Treetop Hideaways Ltd | Hospitality | 2023 |
| Upstairs at Expressions Limited | Arts & recreation | 2015 |
| Varidrill Limited | Mining & quarrying | 2013 |
| Victoria Mill Mews Management Limited | Households | 2026 |
| Walters Estate Agents Limited | Real estate | 2017 |
| WEL Holdco 1 Limited | Financial services | 2013 |
| WEL Holdco 2 Limited | Financial services | 2013 |
| WEL Holdco 3 Limited | Financial services | 2013 |
| WEL Holdco 5 Limited | Extraterritorial | 2013 |
| WEL Holdco 6 Limited | Extraterritorial | 2013 |
| WEL Holdco 7 Limited | Extraterritorial | 2013 |
| White Hall Farm (Woodhall) Limited | Agriculture & fishing | 2018 |
| Willow Farming Limited | Agriculture & fishing | 1994 |
| Witham View Vets Limited | Professional & scientific | 2019 |
| WMS (Call Systems) Limited | Administrative & support | 2003 |
| Woodhall Country Park Limited | Hospitality | 2013 |
| Woodhall Indian Ltd | Hospitality | 2023 |
| Woodhall Spa 1940'S Festival Community Interest Company | Administrative & support | 2023 |
| Woodhall Spa and Kirkby on Bain Foodbank CIC | Health & social care | 2022 |
| Woodhall Spa Bike Hire Ltd | Administrative & support | 2020 |
| Woodhall Spa Cottage Museum | Arts & recreation | 2005 |
| Woodhall Spa Estate Management Company Limited | Real estate | 1995 |
| Woodhall Spa Golf Management 2005 Limited | Arts & recreation | 2005 |
| Woodhall Spa Healthcare Limited | Health & social care | 2021 |
| Woodhall Spa Land Holdings Limited | Real estate | 2005 |
| Woodhall Spa Manor Ltd | Hospitality | 2013 |
| Woodhall Spa Properties Limited | Real estate | 2013 |
| Woodhall Spa United Football Club Limited | Arts & recreation | 2015 |
| Woodhall Wellbeing Ltd | Health & social care | 2024 |
| Woodland Estates Farming Limited | Agriculture & fishing | 2013 |
| Woodland Estates Limited | Administrative & support | 2006 |
| Woodlands Café and Parlour Ltd | Hospitality | 2020 |
| XT Aviation Ltd | Manufacturing | 2024 |
| Zucci Properties Ltd | Hospitality | 2024 |