| Wild Jacks Property Limited | Construction | 2010 |
| Wild Lovers Limited | Wholesale & retail | 2020 |
| Wild Pines Park Limited | Arts & recreation | 2016 |
| Wildbore Media Ltd | Information & communication | 2021 |
| Wildcat Technical Services Limited | Administrative & support | 2005 |
| Wilde MED Limited | Health & social care | 2016 |
| Wilder Minds CIC | Health & social care | 2022 |
| Wildflower Week CIC | Professional & scientific | 2024 |
| Wilesmith Limited | Administrative & support | 2019 |
| Wilkinson Roofing Ltd | Construction | 2024 |
| Wilkinsons Property Lettings Ltd | Real estate | 2021 |
| Wilks Creative Ltd | Information & communication | 2025 |
| Will Dobson Ltd | Wholesale & retail | 2025 |
| Willabella Estates Limited | Financial services | 2020 |
| Willey Holdings Ltd | Real estate | 2025 |
| William Abby Holdings Limited | Administrative & support | 2010 |
| William Aston Ltd | Health & social care | 2012 |
| William Baird Enterprises Limited | Professional & scientific | 2003 |
| William Farr Church of England Comprehensive School | Education | 2010 |
| William Farr Pre-School Playgroup Limited | Education | 2004 |
| Williams Engineering Services Limited | Professional & scientific | 2016 |
| Williams Garage Ltd | Wholesale & retail | 2004 |
| Williams Wealth Consultancy Limited | Professional & scientific | 2014 |
| Williams Wealth Holdings Ltd | Financial services | 2026 |
| Williamson Race Development Ltd | Professional & scientific | 2018 |
| Williamson Street Management Company Limited | Households | 1981 |
| Willingham House Apartments Management Company Limited | Households | 2022 |
| Willoughton Place Management Ltd | Real estate | 2021 |
| Willow Carpentry Contractors Ltd | Construction | 2025 |
| Willow House Physiotherapy and Personal Training Limited | Health & social care | 2013 |
| Willow Pond Farm Leisure Limited | Hospitality | 2024 |
| Willow Tree Close Block 3B RTM Company Limited | Households | 2026 |
| Willow Tree Developments Ltd | Construction | 2024 |
| Willowbeck Investments 23 Unlimited | Professional & scientific | 2023 |
| Willowmere Ltd | Financial services | 2025 |
| Willows Building Maintenance Service (Lincoln) Limited | Construction | 1999 |
| Willows Windows Ltd | Construction | 2003 |
| Wilson Architects Ltd | Professional & scientific | 2018 |
| Wilson Groundcare Ltd | Wholesale & retail | 2017 |
| Wilson Matheson Construction Ltd | Construction | 2017 |
| Wilsons @ 1 Welbeck Ltd | Health & social care | 2019 |
| Wilton Consilium Limited | Professional & scientific | 2026 |
| Winchcombe Holdings Limited | Real estate | 2017 |
| Windale Furnishings Limited | Wholesale & retail | 2009 |
| Windleys Salvage (Bardney) Limited | Administrative & support | 2009 |
| Windleys Salvage Limited | Water & waste | 2009 |
| Window Systems (Lincoln) Limited | Construction | 2024 |
| Window Systems Limited | Construction | 2019 |
| Windy Leaf Trade Ltd | Wholesale & retail | 2024 |
| Wingpin 1 Limited | Hospitality | 2025 |
| Winston Expertise Limited | Professional & scientific | 2021 |
| Winter Worx Ltd | Professional & scientific | 2014 |
| Wintercrack Ltd | Financial services | 2026 |
| Winterdare Ltd | Professional & scientific | 2023 |
| Winton Gardens (Navenby) Ltd | Administrative & support | 1984 |
| Wisdom Heart Limited | Health & social care | 2023 |
| Wise Robotics (UK) Limited | Professional & scientific | 2020 |
| Wisebytes Solutions Limited | Information & communication | 2014 |
| Witchbox Ltd | Wholesale & retail | 2020 |
| With Love Cosmetics Ltd | Wholesale & retail | 2020 |
| Witham Brickwork Limited | Construction | 2021 |
| Witham Financial Services Limited | Financial services | 2016 |
| Witham Group Holdings Limited | Financial services | 2006 |
| Witham Group Limited | Extraterritorial | 2020 |
| Witham Hill Gymnastics Club Ltd | Arts & recreation | 2023 |
| Witham Homes (Lincoln) Limited | Real estate | 2014 |
| Witham Homes Limited | Financial services | 2007 |
| Witham Motorsport Limited | Financial services | 2021 |
| Witham Newbar Limited | Hospitality | 2016 |
| Witham Park Management Limited | Real estate | 2023 |
| Witham Pizza Place Ltd | Hospitality | 2026 |
| Witham Trading Ltd | Wholesale & retail | 2021 |
| Witham View Management Limited | Construction | 1982 |
| Witham Wharf Management Limited | Households | 2006 |
| WJ Shirley Civils Ltd | Administrative & support | 2019 |
| WJ Shirley Development Ltd | Administrative & support | 2019 |
| WJ Shirley Holdings Ltd | Administrative & support | 2019 |
| WJK Haulage Ltd | Transport & logistics | 2024 |
| Wkmg Medical Ltd | Health & social care | 2020 |
| WL Developments (Great Casterton) Ltd | Construction | 2011 |
| WM Banks Plastering Ltd | Construction | 2009 |
| WM Supplies Limited | Professional & scientific | 2009 |
| WMB Expert Services Ltd | Transport & logistics | 2013 |
| WMG Homes Limited | Real estate | 2007 |
| WNG & L Eaton Limited | Real estate | 2017 |
| WNM Hand Surgery Ltd | Health & social care | 2025 |
| Woburn Avenue Management Company Limited | Households | 2007 |
| WOBURN32 Ltd | Wholesale & retail | 2022 |
| Woko-Company Ltd | Wholesale & retail | 2016 |
| Wolds Fixings Limited | Wholesale & retail | 2025 |
| Wolds Workshop Ltd | Professional & scientific | 2024 |
| Wolf Pack Camps Ltd | Arts & recreation | 2025 |
| Wolfe Industries Ltd | Information & communication | 2010 |
| Women's Imaging Ltd | Health & social care | 2021 |
| Womenhealthcare Ltd | Health & social care | 2010 |
| Wood Farm Limited | Agriculture & fishing | 2003 |
| Woodbank Construction Limited | Construction | 2017 |
| Woodborough Services Ltd | Administrative & support | 2016 |
| Woodburn Court Management Company Limited | Real estate | 2009 |
| Wooden Barn Co Ltd | Manufacturing | 2025 |