| West Lodge Management Company (Ashford) Limited | Households | 2008 |
| West Traders Limited | Wholesale & retail | 2019 |
| West-End-Av Ltd | Arts & recreation | 2023 |
| Westend Pizza Limited | Hospitality | 2026 |
| Westlake Carers Ltd | Health & social care | 2020 |
| Westpoint & Merk Office Services Limited | Extraterritorial | 1995 |
| Westwild Limited | Real estate | 2013 |
| Wetton Court (Egham) Residents Management Company Limited | Households | 2010 |
| Wexham Lodge Management Company Limited | Households | 1983 |
| Wharf Assets Ltd | Real estate | 2024 |
| Wheel Alignment Group Ltd | Wholesale & retail | 2021 |
| Whetstone Real Estate Investments Ltd | Real estate | 2020 |
| White Mount Renovations Ltd | Construction | 2025 |
| WIB Property Ltd | Real estate | 2021 |
| Wiba Wealth Ltd | Professional & scientific | 2022 |
| Wichers-Kroon Investment Ltd | Real estate | 2024 |
| Wildcard Technologies Ltd | Information & communication | 2025 |
| Wildforest Instruments Limited | Manufacturing | 2024 |
| Williams Gordon Limited | Administrative & support | 2016 |
| Willow Breeze Group Limited | Wholesale & retail | 2024 |
| Willston Press Ltd | Manufacturing | 2026 |
| Wilrec Ltd | Administrative & support | 2026 |
| Wilson & Edberg Invest Ltd | Hospitality | 2019 |
| Wilson Goddard Foundation Ltd | Other services | 2026 |
| Wincci Ltd | Real estate | 2019 |
| Winch Properties Invest Ltd | Real estate | 2020 |
| Winch Properties Trading Ltd | Real estate | 2020 |
| Windlesham Contracts Ltd | Administrative & support | 2017 |
| Windshields Limited | Extraterritorial | 2011 |
| Wini Properties Ltd | Real estate | 2023 |
| Winkler Foundation | Health & social care | 2000 |
| Wise Invest Properties Ltd | Real estate | 2024 |
| Woking Residential Park Homes Limited | Households | 2016 |
| Woking Tarmac Construction Limited | Construction | 2001 |
| Woman's Own Beauty Academy Ltd | Other services | 2019 |
| Woodpecker Lofts Limited | Construction | 2025 |
| Woods UK Properties Ltd | Real estate | 2021 |
| Workers Aflame! CIC | Other services | 2022 |
| World Cars Trade Ltd | Wholesale & retail | 2023 |
| World Group Limited | Real estate | 1991 |
| World Leasing Limited | Information & communication | 1991 |
| World Luxury Concierge Limited | Administrative & support | 2016 |
| World Supplies Limited | Extraterritorial | 1991 |
| Worthing Care Holdings Limited | Financial services | 2020 |
| Worthing Care Home Limited | Real estate | 2020 |
| Worthing Care Limited | Health & social care | 2020 |
| WPR Property Management Ltd | Real estate | 2009 |
| Wraysbury Roof and Property Care Ltd | Construction | 2026 |
| WT Consulting London Ltd | Professional & scientific | 2018 |
| WYZ Trading Limited | Wholesale & retail | 2024 |
| X4 Studios Ltd | Information & communication | 2016 |
| X4 Technology Ltd | Professional & scientific | 2016 |
| XBP Europe Limited | Information & communication | 1976 |
| Xcelerator Ltd | Professional & scientific | 2026 |
| Xemmy LEE Ltd | Real estate | 2025 |
| XO Trading Ltd | Hospitality | 2022 |
| Xpand Holdings Limited | Transport & logistics | 2018 |
| Xpand Logistics Limited | Transport & logistics | 2000 |
| Xtra Health Ltd | Professional & scientific | 2024 |
| Xtreme Docs UK, Ltd | Administrative & support | 2023 |
| Xxar Ltd | Real estate | 2011 |
| Y&M Real Estate Ltd | Real estate | 2023 |
| Yamadera Labs Ltd | Information & communication | 2018 |
| Yannd Ltd | Financial services | 2021 |
| Yara Property Ltd | Real estate | 2021 |
| Yara Real Estate Ltd | Real estate | 2023 |
| Yellow Lions Pride Limited | Hospitality | 2018 |
| Yellowstone Property Investments Ltd | Real estate | 2021 |
| YEO Real Estate UK Ltd | Real estate | 2025 |
| YES 2 Ship Limited | Transport & logistics | 2015 |
| Yessenia Real Estate Ltd | Real estate | 2021 |
| Yieldharbor Properties Ltd | Real estate | 2024 |
| Yogi Bear's Food Ltd | Hospitality | 2025 |
| York Sterling & Sharp Ltd | Other services | 2023 |
| Youngle Ltd | Professional & scientific | 2023 |
| Youp Property Development Limited | Real estate | 2021 |
| Youp Property Holding Limited | Financial services | 2021 |
| Youp Property Investment Limited | Real estate | 2021 |
| Your Energy Your Way CIC | Construction | 2018 |
| Your M&S Limited | Real estate | 2011 |
| Your Matchmaker Ltd | Information & communication | 2015 |
| Your View Property Ltd | Financial services | 2020 |
| Yoyo Family Ltd | Wholesale & retail | 2021 |
| Zafira Investments Ltd | Professional & scientific | 2015 |
| Zahraman Lebanese Cuisine Ltd | Hospitality | 2024 |
| Zahwarma & Grill Ltd | Hospitality | 2025 |
| Zartaaj Distributors Limited | Wholesale & retail | 2025 |
| Zarus Capital Limited | Real estate | 2014 |
| Zawla Tech Ltd | Professional & scientific | 2021 |
| Zaza's Lebanese II Ltd | Hospitality | 2021 |
| Zazu Estates (Rentals) Ltd | Real estate | 2026 |
| Zeelust Property Group Ltd | Real estate | 2025 |
| Zenith Paving and Landscapes Ltd | Construction | 2019 |
| Zeta Labs Ltd | Information & communication | 2024 |
| Zetora Ltd | Administrative & support | 2022 |
| Zian Hosting Technology Ltd | Information & communication | 2021 |
| Ziaro Properties Ltd | Real estate | 2021 |
| ZL Flooring Services Limited | Wholesale & retail | 2014 |
| Zonic Repair Limited | Other services | 2025 |
| Zoola Industries Limited | Wholesale & retail | 2011 |