| Whiteman Joinery Limited | Construction | 1998 |
| Whiterun Developments Ltd | Construction | 2024 |
| Whiterun Property Ltd | Real estate | 2022 |
| Whiteside Events Ltd | Hospitality | 2025 |
| Whiteswade Marketing Ltd | Hospitality | 2026 |
| Whittle-Le-Park Management Company Limited | Households | 2009 |
| WHO IS Next Derby Ltd | Other services | 2024 |
| Wholesale Car Company Limited | Wholesale & retail | 2009 |
| Wholesale Stock Distributor UK Ltd | Wholesale & retail | 2024 |
| Wickham Estates Limited | Real estate | 2024 |
| Widerscope Building Maintenance Limited | Construction | 2010 |
| Wiggle, Shake & Make Ltd | Education | 2013 |
| Wil-U Solutions Limited | Information & communication | 2019 |
| Wilbury Park (Halewood) Estate Management Company Limited | Households | 2021 |
| Wild Seven Holdings Limited | Wholesale & retail | 2018 |
| Wild Soul Woods CIC | Health & social care | 2023 |
| Wild Tractors Ltd | Wholesale & retail | 2017 |
| Wild Water Ventures Limited | Agriculture & fishing | 2024 |
| Wild Wood Designs Derby Limited | Manufacturing | 2019 |
| Wild's Butchers Limited | Wholesale & retail | 2003 |
| Wildbore Holdings Limited | Financial services | 2017 |
| Wildflower Meadow Management Company Limited | Households | 2020 |
| Wildrose Developments Ltd | Construction | 2024 |
| Wildwood Canopy Ltd | Agriculture & fishing | 2026 |
| Wilkins & Cole Book Specialists Ltd | Wholesale & retail | 2020 |
| Wilks Consultancy Limited | Professional & scientific | 2025 |
| Will Bros Limited | Extraterritorial | 2018 |
| Willco Property Ltd | Construction | 2021 |
| William Bernard Holdings Ltd | Real estate | 2026 |
| William Jameson Commercials Limited | Wholesale & retail | 2024 |
| William Joyce Lettings Limited | Real estate | 2021 |
| William Lowden & Associates Limited | Financial services | 2000 |
| William Parry Limited | Financial services | 2012 |
| Williams Beith Engineering and Management Services Limited | Professional & scientific | 2013 |
| Williams Content Consulting Limited | Professional & scientific | 2015 |
| Williams Management Solutions Limited | Professional & scientific | 2014 |
| Williams Movement UK Ltd | Wholesale & retail | 2026 |
| Williamson Residential Property Limited | Real estate | 2025 |
| Willing IT Ltd | Professional & scientific | 2015 |
| Willington Building Services Ltd | Construction | 2021 |
| Willington Garage Ltd | Wholesale & retail | 2012 |
| Willis & Gambier Limited | Extraterritorial | 2023 |
| Willmott & Clifton Construction Ltd | Construction | 2018 |
| Willoe Holdings Limited | Financial services | 2008 |
| Willoughby (1) Limited | Extraterritorial | 1992 |
| Willover Group Limited | Real estate | 2024 |
| Willow & Co. Designs Ltd | Professional & scientific | 2026 |
| Willow & Co. Estates Ltd | Real estate | 2026 |
| Willow & Friends Dog Walking Service Limited | Other services | 2023 |
| Willow Care Group Education & Learning Limited | Education | 2026 |
| Willow Care Group Limited | Health & social care | 2020 |
| Willow Finance Collective Ltd | Professional & scientific | 2026 |
| Willow Grange (Marston Lane) Management Company Limited | Households | 2019 |
| Willow House Estates Limited | Financial services | 2014 |
| Willow Industrial Park Limited | Real estate | 1984 |
| Willow Sports Centre Limited | Arts & recreation | 1994 |
| Willow Tree Court (Mickleover) Management Limited | Households | 2007 |
| Willow Woods Management Company Limited | Households | 2021 |
| Willow's Avenue Ltd | Wholesale & retail | 2025 |
| Willowbrook Landscapes Limited | Administrative & support | 2003 |
| Willowbrook Rise Management Company Limited | Households | 2025 |
| Willowcroft Care Limited | Health & social care | 2025 |
| Willowdene Home Park Limited | Real estate | 2023 |
| Wilmar Electrical Limited | Construction | 2015 |
| Wilmot Development Limited | Construction | 2025 |
| Wilmot Service Station Limited | Wholesale & retail | 2004 |
| Wilne Developments | Professional & scientific | 1965 |
| Wilne Services Limited | Real estate | 2014 |
| Wilson Construction (Midlands) Limited | Construction | 2003 |
| Wilson Enterprises (Melton) Ltd | Real estate | 2013 |
| Wilson Enterprises Ltd | Real estate | 2010 |
| Wilson Hall Consulting Limited | Professional & scientific | 2015 |
| Wilson Trust Corporation Limited | Professional & scientific | 2024 |
| Wiltshire Automotive Bodyshop Ltd | Wholesale & retail | 2025 |
| Wiltshire Motors and Campers Ltd | Wholesale & retail | 2024 |
| Wincham Rose Suites Ltd | Real estate | 2024 |
| Wind Rose Logistics Ltd | Transport & logistics | 2025 |
| Windco (International) Limited | Professional & scientific | 2022 |
| Windco Ltd | Professional & scientific | 2021 |
| Winding Roads Limited | Wholesale & retail | 2004 |
| Windless Therapy Limited | Health & social care | 2026 |
| Windlestone (Chilton) Management Company Limited | Households | 2024 |
| Windmill Garage (Derby) Ltd | Wholesale & retail | 2013 |
| Windmill Properties (Derby) Limited | Real estate | 2002 |
| Windrows Consultancy Limited | Financial services | 2024 |
| Windrush Property Development Limited | Construction | 2023 |
| WINDS0R Seasons Limited | Wholesale & retail | 2017 |
| Wine NOT Italy Store Ltd | Wholesale & retail | 2022 |
| Winfield Electrical Ltd | Professional & scientific | 2023 |
| Wingfield and Oak Landscape Design Ltd | Administrative & support | 2025 |
| Wingfuel Limited | Hospitality | 2025 |
| Wingstone Ltd | Hospitality | 2026 |
| Winnastar Healthcare Limited | Administrative & support | 2022 |
| Winnie Healthcare Limited | Health & social care | 2015 |
| Winning Commercial Finance Ltd | Financial services | 2018 |
| Winnson & Co Ltd | Construction | 2023 |
| Winslow Court Ltd | Health & social care | 1990 |
| Winster Properties Ltd | Real estate | 2021 |
| Winston Catering and Events Ltd | Hospitality | 2020 |
| Winterbrook Park (Wallingford) Management Company Limited | Households | 2018 |