| Whitestone Solicitors Limited | Professional & scientific | 2010 |
| Whitewater Consultants Limited | Information & communication | 2017 |
| Whitham Field Farms Limited | Construction | 1971 |
| Whitham Jones Legal Services Limited | Administrative & support | 2017 |
| Whittaker Accountants Ltd | Professional & scientific | 2021 |
| Whittingtons Guest House Ltd | Hospitality | 2019 |
| Whitworth Bakery Limited | Wholesale & retail | 2015 |
| Whitworth Bar Garage Limited | Wholesale & retail | 1961 |
| Whitworth Properties Limited | Construction | 2024 |
| Whitworth Sports Council | Arts & recreation | 2014 |
| Whitworth Storage Units Ltd | Real estate | 2018 |
| Wholesale E-Liquid Limited | Wholesale & retail | 2021 |
| Wiggle Wiggle Limited | Wholesale & retail | 2025 |
| Wijs & Co Ltd | Other services | 2017 |
| Wilco AI Dynamics Ltd | Information & communication | 2023 |
| Wild Goose HR Ltd | Professional & scientific | 2026 |
| Wild Surgical Ltd | Health & social care | 2020 |
| WILD95 Ltd | Professional & scientific | 2025 |
| Wildgigner Ltd | Hospitality | 2024 |
| Wildsmith Holdings Ltd | Real estate | 2020 |
| Wilfrid Lord Building Limited | Wholesale & retail | 1979 |
| Will Craft Ltd | Other services | 2023 |
| William Tatham Limited | Manufacturing | 1912 |
| William Temple Foundation Limited | Education | 1956 |
| William Wood Designs Limited | Wholesale & retail | 2010 |
| Williamson House Management Company Limited | Households | 2026 |
| Willow Collections Limited | Administrative & support | 2013 |
| Willow Rose Properties Ltd | Real estate | 2020 |
| Willows Mill Ltd | Wholesale & retail | 2020 |
| Wills & Wishes Legal Limited | Professional & scientific | 2020 |
| Wilsons Fruit and VEG Ltd | Wholesale & retail | 2019 |
| Wilsons Plumbing Heating & Building Services Ltd | Construction | 2022 |
| Wilsonsstorm Ltd | Wholesale & retail | 2024 |
| Wimu My Medical Practice Ltd | Health & social care | 2024 |
| Windmill Taverns 2019 Ltd | Hospitality | 2019 |
| Window Wise Consulting Ltd | Professional & scientific | 2024 |
| Wing Enterprise Ltd | Wholesale & retail | 2022 |
| Wingsley Ltd | Wholesale & retail | 2026 |
| Wink Advisory Services Ltd | Other services | 2023 |
| Wink Consulting Services LLP | | 2024 |
| Winston Trading Group Limited | Other services | 2023 |
| Winterburns of Rochdale Ltd | Construction | 2014 |
| Wireless Cctv Limited | Manufacturing | 2001 |
| Wireless Diagnostics Limited | Extraterritorial | 2022 |
| Wisdom Code Ltd | Wholesale & retail | 2025 |
| Wise Look Traders Ltd | Manufacturing | 2020 |
| WIZ Horse Ltd | Transport & logistics | 2023 |
| Wize Logistics Ltd | Transport & logistics | 2026 |
| Wize Traders Ltd | Wholesale & retail | 2025 |
| WJ Masonry & Restoration Limited | Manufacturing | 2021 |
| WJL Sound Ltd | Information & communication | 2022 |
| Wjvm Trading Limited | Real estate | 2011 |
| WK Supplies Ltd | Construction | 2017 |
| WK40 Ltd | Hospitality | 2025 |
| WKA Property Holdings Limited | Real estate | 2026 |
| WL Vets Limited | Professional & scientific | 2016 |
| Wliin Limited | Wholesale & retail | 2026 |
| WM Rush Solutions Ltd | Financial services | 2025 |
| WMC E Sole Ltd | Wholesale & retail | 2025 |
| WMC Logistics Limited | Wholesale & retail | 2024 |
| WNR Construction Services Ltd | Construction | 2023 |
| WNS Furniture Ltd | Wholesale & retail | 2024 |
| Woas Official Ltd | Wholesale & retail | 2023 |
| Wokchef Rochdale Ltd | Wholesale & retail | 2025 |
| Wolf Holdings Limited | Financial services | 2025 |
| Wolveyes International Ltd | Wholesale & retail | 2025 |
| Wonder Crab Ltd | Health & social care | 2017 |
| Wonder Wheels (U.K.) Limited | Manufacturing | 1994 |
| Wonky Donkey Brewing Co Ltd | Manufacturing | 2026 |
| Woodbank Grounds Maintenance Limited | Administrative & support | 2026 |
| Woodbine Carpentry Ltd | Construction | 2024 |
| Woodfire Pizza Limited | Hospitality | 2025 |
| Woodgate Consultancy Ltd | Professional & scientific | 2023 |
| Woodhouse Joinery & Building Ltd | Construction | 2026 |
| Woodlands (Bamford) Management Limited | Households | 2022 |
| Woodlandscleaningservices Limited | Administrative & support | 2024 |
| Woodlea Chase Management Company Ltd | Real estate | 2018 |
| Woodtop Estates Limited | Real estate | 2017 |
| Workfalcon Ltd | Administrative & support | 2025 |
| World Cleaner Ltd | Administrative & support | 2024 |
| Worldwide Domain Registry Limited | Administrative & support | 2023 |
| Worldwide Foods (Glodwick Road) Limited | Wholesale & retail | 2024 |
| Worldwide Foods (Hunslet) Limited | Wholesale & retail | 2024 |
| Worldwide Foods (Ilford) Limited | Wholesale & retail | 2024 |
| Worldwide Foods (Ingleby) Ltd | Wholesale & retail | 2025 |
| Worldwide Foods (Keighley) Ltd | Wholesale & retail | 2025 |
| Worldwide Foods (Old Trafford) Ltd | Wholesale & retail | 2017 |
| Worldwide Foods (Rochdale) Limited | Wholesale & retail | 2000 |
| Worldwide Foods (Rusholme) Limited | Wholesale & retail | 2002 |
| Worldwide Foods Group Ltd | Administrative & support | 2021 |
| Worldwide Foods Holdings Limited | Real estate | 2023 |
| Worldwide Foods Huddersfield Limited | Wholesale & retail | 2026 |
| Worldwide Kitchen Ltd | Manufacturing | 2023 |
| Worx Utilities Limited | Agriculture & fishing | 2011 |
| WP Traders Ltd | Wholesale & retail | 2019 |
| WPS2 Limited | Real estate | 2019 |
| WR Productions Ltd | Arts & recreation | 2023 |
| Wrigley's Babyland Limited | Wholesale & retail | 1979 |
| Wrong Fuel Master Ltd | Wholesale & retail | 2023 |
| WRR Properties Ltd | Real estate | 2025 |