| Whimsy Wharf Ltd | Extraterritorial | 2026 |
| Whirlow Design & Build Limited | Construction | 2025 |
| Whisko Ltd | Extraterritorial | 2022 |
| Whiskoria Ltd | Extraterritorial | 2026 |
| Whitaker Developments Ltd | Real estate | 2006 |
| Whitakers Homes Ltd | Construction | 2009 |
| Whitakers Property Company Limited | Real estate | 2024 |
| Whitby Holiday LET Ltd | Hospitality | 2023 |
| Whitby Holiday LET Prospect Ltd | Hospitality | 2023 |
| White Academy of Accounting Ltd | Professional & scientific | 2021 |
| White ASH Brook (Accrington) Limited | Health & social care | 2014 |
| White Bird Consulting Ltd | Agriculture & fishing | 2014 |
| White Castle Consulting Ltd | Information & communication | 2023 |
| White Fence Property Ltd | Real estate | 2022 |
| White Hart (CNA) Ltd | Hospitality | 2018 |
| White Hart (Thorne) Ltd | Hospitality | 2018 |
| White Hart Curry House Limited | Hospitality | 2025 |
| White Horse Rosedale Limited | Hospitality | 2016 |
| White House Farm (Warmsworth) Ltd | Other services | 2025 |
| White Lotus Healthcare Ltd | Health & social care | 2026 |
| White Rose Accountants Limited | Professional & scientific | 1998 |
| White Rose Children Services Ltd | Health & social care | 2022 |
| White Rose Court (Yorkshire) Limited | Real estate | 2002 |
| White Rose Entertainment and Leisure Ltd | Arts & recreation | 2014 |
| White Rose Holdings Ltd | Other services | 2016 |
| White Rose Management Services Limited | Professional & scientific | 1989 |
| White Rose Occasions Limited | Other services | 2016 |
| White Rose Planning Limited | Financial services | 2013 |
| White Rose PR Ltd | Professional & scientific | 2010 |
| White Rose Resin Ltd | Administrative & support | 2024 |
| White Willow Estates Ltd | Real estate | 2025 |
| White, H & Oval Ltd | Professional & scientific | 2018 |
| Whitecroft Services Ltd | Extraterritorial | 2026 |
| Whitehouse Court (1996) Property Management Company Limited | Real estate | 1996 |
| Whitehouse Farm (Property Developments) Limited | Real estate | 2009 |
| Whiteside Electrical Company Limited | | 1979 |
| Whitfield Builders Ltd | Construction | 2022 |
| Whitfield Hanson Accountancy Ltd | Professional & scientific | 2025 |
| Whitfield Hanson Estates Limited | Real estate | 2025 |
| Whitfield Transport Services Ltd | Transport & logistics | 2024 |
| Whitfield Windows & Doors Ltd | Construction | 2024 |
| Whittaker Enterprises Ltd | Wholesale & retail | 2025 |
| Whittaker Superbikes Ltd | Wholesale & retail | 2025 |
| Whittle Property Management Ltd | Real estate | 2023 |
| Whittle Roofing Contractors Ltd | Construction | 2019 |
| Whitwell Park Care Home Limited | Health & social care | 2015 |
| Whitwell Residents Management Company Limited | Households | 2021 |
| Whizzbop CIC | Arts & recreation | 2024 |
| Wholesale Doncaster Ltd | Wholesale & retail | 2024 |
| WHR Property Investments Limited | Construction | 2025 |
| Wick TM Ltd | Construction | 2023 |
| Wicked Waxing Limited | Other services | 2011 |
| Wicklow Properties Ltd | Real estate | 2022 |
| Wicks Metals Limited | Wholesale & retail | 2024 |
| Wicks Services Limited | Water & waste | 2004 |
| Wide Sky Holdings Limited | Financial services | 2024 |
| WIK Cleaning Ltd | Administrative & support | 2024 |
| Wilbourn & Co Ltd | Professional & scientific | 2013 |
| Wilcocks Contractors Limited | Construction | 1995 |
| Wilcox FM Ltd | Construction | 2024 |
| Wilcox Holdings Group Ltd | Financial services | 2024 |
| Wild Life Foundation | Education | 2012 |
| Wild Life Group Limited | Arts & recreation | 2008 |
| Wild Life Resort Limited | Hospitality | 2017 |
| Wild Life Restaurants Ltd | Hospitality | 2017 |
| Wildbrook Lifestyle Ltd | Extraterritorial | 2026 |
| Wildfern Pet Supplies Ltd | Extraterritorial | 2026 |
| Wildlings & Wellbeing CIC | Education | 2020 |
| Wildmint Organics Ltd | Extraterritorial | 2026 |
| Wildmint Works Ltd | Extraterritorial | 2026 |
| Wilds Holiday Parks Limited | Hospitality | 2025 |
| Wildtrack Sound Ltd | Information & communication | 2020 |
| Wilhelm Conrad Limited | Extraterritorial | 2014 |
| Wilim Trans Ltd | Transport & logistics | 2018 |
| Wilkinson Butchers Limited | Wholesale & retail | 2003 |
| Wilkinson Healthcare Ltd | Health & social care | 2023 |
| Wilkinson's Auctioneers Limited | Wholesale & retail | 2002 |
| Wilkinson's Joinery Limited | Construction | 2006 |
| Will&Pen Holding Ltd | Real estate | 2025 |
| William Douglas Properties Ltd | Real estate | 2017 |
| William Heath Limited | Wholesale & retail | 2014 |
| William Matthew Limited | Information & communication | 2001 |
| Williams Properties (Yorkshire) Ltd | Real estate | 2025 |
| Williamson & Husband Limited | Other services | 2020 |
| Willis and Co. Construction Ltd | Construction | 2021 |
| Willo Properties Limited | Real estate | 2025 |
| Willow and Semp HR Consultancy Ltd | Professional & scientific | 2022 |
| Willow Field Clubhouse Ltd | Hospitality | 2025 |
| Willow Glade Management Company Limited | Real estate | 2025 |
| Willow Grove Childcare Limited | Health & social care | 2025 |
| Willow Leasing Limited | Administrative & support | 2018 |
| Willow Traffic Management Ltd | Public administration | 2024 |
| Willow's of Warmsworth Ltd | Hospitality | 2017 |
| Willowbridge Studios Ltd | Extraterritorial | 2025 |
| Willowdale Plant Ltd | Administrative & support | 2018 |
| Willowgate Retail Limited | Extraterritorial | 2026 |
| Willowmere Group Ltd | Extraterritorial | 2025 |
| Willows Bistro Ltd | Hospitality | 2021 |
| Wills by Matthew White Ltd | Professional & scientific | 2022 |
| Wills for YOU Company Ltd | Other services | 2024 |