| Whyy? Change Limited | Professional & scientific | 2015 |
| Wickersley Accountancy Ltd | Professional & scientific | 2019 |
| Wickersley Angling Centre Ltd | Wholesale & retail | 2023 |
| Wickersley Audiology Limited | Wholesale & retail | 2021 |
| Wickersley Cars Ltd | Transport & logistics | 2007 |
| Wickersley Electrical Solutions Ltd | Manufacturing | 2008 |
| Wickersley Fencing & Garden Maintenance Ltd | Administrative & support | 2025 |
| Wickersley Nursery Ltd | Health & social care | 2014 |
| Wickersley Partnership Trust | Education | 2014 |
| Wickersley Property Investments Limited | Real estate | 2024 |
| Wickersley Scaffolding Services Limited | Construction | 2017 |
| Wide Millennium Limited | Information & communication | 2012 |
| Wiechow Transport Service Ltd | Transport & logistics | 2026 |
| Wiggle and Wonder Ltd | Hospitality | 2026 |
| Wigley Water Ltd | Administrative & support | 2012 |
| Wigley Weddings Ltd | Hospitality | 2026 |
| Wigtox Sculpt & Rejuvenate Ltd | Other services | 2025 |
| Wilber Shutters Ltd | Other services | 2016 |
| Wild Accounting Ltd | Professional & scientific | 2025 |
| Wild Thing Holdings Limited | Financial services | 2024 |
| Wild-Sensation Ltd | Construction | 2024 |
| Wildfire Games Ltd | Information & communication | 2018 |
| Wilks Entertainment Ltd | Hospitality | 2025 |
| Will Burkin GAS & Plumbing Services Ltd | Construction | 2015 |
| Will Sherwood Coaching Ltd | Education | 2022 |
| Willabells Accommodation Ltd | Real estate | 2025 |
| William Colgrave Limited | Real estate | 2020 |
| Williams Vehicle Sales Goldthorpe - Wvsg Limited | Wholesale & retail | 2026 |
| Willow Farm Yorkshire Limited | Agriculture & fishing | 2022 |
| Willow Haulage Limited | Transport & logistics | 2025 |
| Willow Tree Academy | Education | 2015 |
| Wilmor Fabrications Limited | Manufacturing | 2004 |
| Wils Properties Limited | Real estate | 2025 |
| Wilson & Douglas Consulting Limited | Professional & scientific | 2024 |
| Wilson Plastering Limited | Construction | 2024 |
| Wilson Refrigeration and Air Conditioning Limited | Construction | 2022 |
| Wilson Terrace Freehold Management Limited | Households | 2017 |
| Wilson-Lewis Ltd | Health & social care | 2025 |
| Wilsons Bathrooms Limited | Wholesale & retail | 2025 |
| Wilsons Furnishers (Holdings) Limited | Wholesale & retail | 2012 |
| Wilsons Furnishers Group Limited | Financial services | 2024 |
| Wilsons Furnishers Limited | Wholesale & retail | 2003 |
| Wilton Hawkes Limited | Professional & scientific | 2014 |
| Winchester (SY) Ltd | Administrative & support | 2022 |
| Winchester Gears Limited | Wholesale & retail | 2021 |
| Wincobank Fabrication and Engineering Limited | Professional & scientific | 2010 |
| Wincobank Holdings Limited | Financial services | 2022 |
| Windleden 2 Ltd | Hospitality | 2024 |
| Windleden Ltd | Hospitality | 2021 |
| Windsor Furniture Ltd | Wholesale & retail | 2024 |
| Windy Ridge Estates Limited | Real estate | 2024 |
| Wing Plastering Ltd | Construction | 2010 |
| Wing Spray Plastering Ltd | Real estate | 2023 |
| Wings PVT Ltd | Wholesale & retail | 2026 |
| Winkay Alpha Ltd | Real estate | 2015 |
| Winlong Garments Ltd | Wholesale & retail | 2019 |
| Winners P.D. Limited | Other services | 2014 |
| Winnie Consulting Limited | Professional & scientific | 2014 |
| Winnisim Floristry Ltd | Wholesale & retail | 2026 |
| Winterferne Holdings Limited | Real estate | 2026 |
| Winterhills Estates Limited | Households | 2021 |
| Winters Williams Efje Ltd | Real estate | 2020 |
| Wiofeey Ltd | Wholesale & retail | 2022 |
| Wise Care Solutions Ltd | Administrative & support | 2021 |
| Wise OWL Training Limited | Education | 2012 |
| Wisener Solutions Limited | Information & communication | 2019 |
| Witter's Boxing Club C.I.C. | Administrative & support | 2019 |
| Wjfuller Ltd | Administrative & support | 2025 |
| WKJ Travel Ltd | Transport & logistics | 2023 |
| WL Rotherham Ltd | Financial services | 2023 |
| WM Media Services Ltd | Information & communication | 2021 |
| WMR Installations Ltd | Manufacturing | 2024 |
| WMS Testing Ltd | Information & communication | 2008 |
| WNB Services Ltd | Construction | 2025 |
| WNM Properties Limited | Real estate | 2025 |
| Wolf Components Ltd | Manufacturing | 2017 |
| Wolf of ALL Streets Ltd | Real estate | 2024 |
| Wolfe Lettings Limited | Real estate | 2024 |
| Wolsey Joinery Ltd | Construction | 2012 |
| Wolsey Television (Scotland) Limited | Extraterritorial | 1949 |
| Wolsey Timber Frame Limited | Construction | 2026 |
| Wolves Love Ltd | Wholesale & retail | 2025 |
| Wonder Cart Ltd | Wholesale & retail | 2026 |
| Wonder Years Inspirational Daycare Centre Ltd | Health & social care | 2019 |
| Wonderland & Friends Ltd | Hospitality | 2026 |
| Woodcraft Repetitions Limited | Manufacturing | 2010 |
| Woodfoot Business Services Limited | Professional & scientific | 2013 |
| Woodland Frames UK Ltd | Manufacturing | 2026 |
| Woodland OIL Limited | Water & waste | 1996 |
| Woodlands Financial Services Limited | Financial services | 2021 |
| Woodlands Property Yorkshire Ltd | Real estate | 2022 |
| Woodstock Bower Partners Limited | Health & social care | 2023 |
| Woodward Property Company Ltd | Real estate | 2025 |
| Woolford Technologies Ltd | Information & communication | 2022 |
| Wootton Industries Limited | Wholesale & retail | 2005 |
| Word for Word (WFO) Limited | Manufacturing | 2014 |
| WORD2WEB Limited | Other services | 2021 |
| Workers Walkers Ltd. | Other services | 2016 |
| Workplace Scientifics Ltd | Professional & scientific | 2018 |
| Worksopnet Limited | Real estate | 2015 |