| Winshaw Woofies Ltd | Agriculture & fishing | 2024 |
| Witte UK Limited | Other services | 2019 |
| WJM Builders Ltd | Manufacturing | 2018 |
| WMG Transport Ltd | Transport & logistics | 2020 |
| Wolf Move & Recruit Limited | Transport & logistics | 2023 |
| Wonky Candles Ltd | Manufacturing | 2021 |
| Woodburn Consultants Ltd | Professional & scientific | 2025 |
| Woodfield Place Residents Management Company Limited | Households | 2018 |
| Woodland Press Ltd | Professional & scientific | 2018 |
| Woodland Walk (Meltham) Management Company Limited | Households | 2021 |
| Woodland Waters Management Company Limited | Households | 2006 |
| Woodside Farm Livery Limited | Agriculture & fishing | 2004 |
| Woodside Plant Services Limited | Administrative & support | 2017 |
| Woodstone Meadow Management Company Limited | Households | 2018 |
| Woodthorne Residents Management Company Limited | Households | 2014 |
| Woodville Box Club Ltd | Wholesale & retail | 2025 |
| WOW! Car and Van Hire Limited | Administrative & support | 2025 |
| Wright Homecare Limited | Health & social care | 2006 |
| Wroughtwood Carpentry Limited | Manufacturing | 2018 |
| Wynyates Homes Limited | Construction | 2022 |
| X-Gen Homes Ltd | Construction | 2025 |
| Xperia Events Limited | Hospitality | 2022 |
| Xugo Ltd | Wholesale & retail | 2024 |
| XYZ Automotive Ltd | Wholesale & retail | 2026 |
| Yeldside Gardens Residents Management Company Limited | Households | 2006 |
| Yellow Panel Company Ltd | Manufacturing | 2019 |
| Ymyl YR Afon Residents Management Company Limited | Households | 2018 |
| Yolo Food Group Limited | Hospitality | 2021 |
| Yolo Group Limited | Hospitality | 2021 |
| York Builders (Landscaping) Ltd | Construction | 2020 |
| York Builders (Staffs) Ltd | Construction | 2011 |
| Your Buddy's World Limited | Agriculture & fishing | 2018 |
| Your Health Limited | Health & social care | 1995 |
| Your Health Training Limited | Administrative & support | 2004 |
| Your LET Limited | Real estate | 2020 |
| Your Need for Tweed Limited | Manufacturing | 2018 |
| Youth 4LIFE Creations Ltd | Health & social care | 2024 |
| Zagosa Ltd | Wholesale & retail | 2022 |
| Zedtransforms Limited | Information & communication | 2019 |
| ZEN DEN Cafe Ltd | Hospitality | 2026 |
| Zenith Foundry Ltd | Professional & scientific | 2023 |
| Zenith Hair Limited | Other services | 2003 |
| Zeril Jules Limited | Information & communication | 2021 |
| Zion Recruitment&Placement Service's Ltd | Administrative & support | 2025 |
| Zouch Dynamics Limited | Information & communication | 2006 |
| Zuff Services (UK) Ltd | Administrative & support | 2017 |
| Zyntara Social Ltd | Hospitality | 2025 |