| Wirksworth Property Management Limited | Households | 2021 |
| Wisdan Properties Limited | Real estate | 2025 |
| Wise Education Group (UK) Limited | Education | 2022 |
| Wise Home Care Limited | Health & social care | 2017 |
| Wise House Ltd | Extraterritorial | 2024 |
| Wise Training Ltd | Education | 2026 |
| Wishbone Property Developments Limited | Construction | 2011 |
| Wisteria (Eco) Ltd | Agriculture & fishing | 2021 |
| Wisteria Farm Ltd | Agriculture & fishing | 2025 |
| Wita Ltd | Professional & scientific | 2023 |
| With Leila Limited | Professional & scientific | 2023 |
| With Neil Morrissey PUB Company Limited | Hospitality | 2015 |
| With Passion for Electronic Ltd | Manufacturing | 2018 |
| Witko Logistics Ltd | Transport & logistics | 2024 |
| Wiverton Homes Ltd | Real estate | 2021 |
| Wizard Ventures Ltd | Transport & logistics | 2025 |
| WJE Holdings Ltd | Administrative & support | 2020 |
| WJM Sports Limited | Arts & recreation | 2014 |
| WLR Accounting Solutions Ltd | Professional & scientific | 2022 |
| WLR Secretaries Limited | Administrative & support | 2024 |
| WML Contracting Services Limited | Construction | 2017 |
| Wmstaffing Limited | Administrative & support | 2025 |
| Wndi Innovations Ltd | Professional & scientific | 2022 |
| WOK This Way Street Food Ltd | Hospitality | 2026 |
| Wolax Ltd | Manufacturing | 2019 |
| Wolds PUB Co Ltd | Construction | 2018 |
| Wolf and White Holdings Limited | Manufacturing | 2022 |
| Wolf and White Limited | Administrative & support | 2014 |
| Wolf Constraction Ltd | Construction | 2026 |
| Wolf Miller Ltd | Real estate | 2020 |
| Wolf Speed Ltd | Transport & logistics | 2025 |
| Wolf Sportswear Ltd | Wholesale & retail | 2022 |
| Wolf Street Media Ltd | Information & communication | 2025 |
| Wolny Art Ltd | Arts & recreation | 2025 |
| Wolstenholmes Property Limited | Real estate | 2025 |
| Wolverine UK Holdco Limited | Financial services | 2018 |
| Wombwell Driver Hire Ltd | Administrative & support | 2018 |
| Women in REC Ltd | Other services | 2019 |
| Womens Work (Derbyshire) Limited | Health & social care | 2010 |
| Wonder Collab Ltd | Professional & scientific | 2023 |
| Wonderful Kitchen Limited | Hospitality | 2025 |
| Wong's Entrepreneur Limited | Hospitality | 2025 |
| Wood and Walker Ltd | Real estate | 2024 |
| Wood Newton Control Systems Limited | Manufacturing | 2008 |
| Wood Publications Limited | Professional & scientific | 2015 |
| Wood Road Fish Bar Ltd | Hospitality | 2012 |
| Woodbine Garage Limited | Wholesale & retail | 1976 |
| Woodchem Limited | Manufacturing | 2015 |
| Woodcock Farm Limited | Agriculture & fishing | 2005 |
| Woodcote Day Nursery Limited | Education | 2020 |
| Woodcross Gate Residents Management Company Limited | Households | 2020 |
| Wooden Spoon the Cookshop Ltd | Administrative & support | 2016 |
| Woodend Nursery Ltd | Health & social care | 2005 |
| Woodfir Homes Limited | Real estate | 2026 |
| Woodgreen Property Investments Limited | Real estate | 2020 |
| Woodgrow Horticulture Limited | Wholesale & retail | 1973 |
| Woodgrow Limited | Wholesale & retail | 2021 |
| Woodhill Gray Limited | Construction | 2020 |
| Woodland Crest Ltd | Agriculture & fishing | 2026 |
| Woodlands (Bloxham) Management Company Limited | Households | 2016 |
| Woodlands Lery Ltd | Financial services | 2018 |
| Woodlands Lumb Farm Limited | Real estate | 2022 |
| Woodlands Nursery (Derby) Limited | Administrative & support | 1994 |
| Woodlands R@R Ltd | Hospitality | 2025 |
| Woodlands Townhouses Limited | Real estate | 2026 |
| Woodleaf Ltd | Hospitality | 2020 |
| Woodmason Construction Limited | Construction | 2014 |
| Woodmore Place Estate Management Company Limited | Households | 2017 |
| Woods Lane Limited | Professional & scientific | 2022 |
| Woodside Commercial Properties Limited | Real estate | 2021 |
| Woodside Industrial Park Limited | Real estate | 2022 |
| Woodside Property Investments Limited | Real estate | 2000 |
| Woodsoft Ltd | Information & communication | 2022 |
| Woodspace Ltd | Manufacturing | 2014 |
| Woodville Place (Omega Apartments) Management Company Limited | Households | 2019 |
| Woodville Place (Omega) Estate Management Company Limited | Households | 2017 |
| Woodwards Consultants Limited | Professional & scientific | 2015 |
| Woodwell Property Solutions Ltd | Real estate | 2024 |
| Woody Homes Holding Ltd | Financial services | 2026 |
| Woofterful Ltd | Agriculture & fishing | 2021 |
| Woolberry PM Solutions Limited | Information & communication | 2017 |
| Woolven Consulting Limited | Hospitality | 2024 |
| Woore Watkins Limited | Professional & scientific | 2003 |
| Worcester Lloyd Limited | Professional & scientific | 2024 |
| Word Stratum Ltd | Information & communication | 2025 |
| Words & Letters Limited | Wholesale & retail | 2026 |
| Work Clothing Solutions Limited | Wholesale & retail | 2020 |
| Work Vitality Limited | Professional & scientific | 2010 |
| Workchain Holdings Ltd | Administrative & support | 2024 |
| Workchain Ltd | Information & communication | 2006 |
| Working With YOU Limited | Education | 2026 |
| Worknest 8 Limited | Administrative & support | 2025 |
| Workpays Limited | Professional & scientific | 2010 |
| Workplace Cleaners Ltd | Administrative & support | 2019 |
| Workshop Architects Limited | Professional & scientific | 2006 |
| Worksop Tarmacadam Group Limited | Financial services | 2025 |
| Workstation Specialists Limited | Manufacturing | 2013 |
| Workygear Ltd | Wholesale & retail | 2025 |
| World Computer Support Services Limited | Administrative & support | 2013 |
| World Health Tests Ltd | Wholesale & retail | 2024 |