| Willow House Group Ltd | Administrative & support | 2018 |
| Willow Tree Assets Ltd | Real estate | 2025 |
| Wilton Lodge Residents Association (1994) Limited | Households | 1994 |
| Windfall Motors Limited | Wholesale & retail | 2024 |
| Windsor Mews (Wraysbury) Resident Management Company Limited | Administrative & support | 1996 |
| Windsor Place (Chertsey) Residents Association Ltd | Households | 1986 |
| Wintercrest Ltd | Financial services | 2019 |
| Wintercrest Mark 2 Ltd | Financial services | 2024 |
| Winthorpe Group Ltd | Wholesale & retail | 2025 |
| Wintro Care Ltd | Health & social care | 2021 |
| Wise Creatives Surrey Ltd | Professional & scientific | 2024 |
| Wish Shop Ltd | Wholesale & retail | 2024 |
| Wivenhoe Court a RTM Company Limited | Households | 2020 |
| Wivenhoe Court B RTM Company Limited | Households | 2020 |
| Wivenhoe Court C RTM Company Limited | Households | 2020 |
| Wizard of Dogs Limited | Other services | 2024 |
| WL Scrap Metal Recycling Ltd | Water & waste | 2023 |
| Wlriskmanagement Ltd | Administrative & support | 2021 |
| Wood Suite Ltd | Manufacturing | 2016 |
| Woodthorpe Estate Limited | Construction | 2014 |
| Worldwide Events & Hospitality Limited | Administrative & support | 2009 |
| Wot-A-Pullet Limited | Extraterritorial | 1996 |
| WP Tcompliance Ltd | Transport & logistics | 2025 |
| Wraysbury Car Spares Limited | Wholesale & retail | 2015 |
| Wraysbury Consulting Ltd | Administrative & support | 2024 |
| Wraysbury Food & Wine Limited | Wholesale & retail | 2014 |
| Wraysbury Resource Management Limited | Water & waste | 2024 |
| Wren Productions Ltd | Information & communication | 2024 |
| WVC Land & Developments Limited | Real estate | 1993 |
| WVC Park Homes (Trading) Limited | Real estate | 2018 |
| WVC Park Homes Limited | Real estate | 2018 |
| WVC Vehicle Solutions Limited | Wholesale & retail | 1999 |
| WWF Ltd | Real estate | 2024 |
| Wyneir Surveyors Limited | Professional & scientific | 2017 |
| Wythegate Residents (Staines) Limited | Households | 1974 |
| Xanseller Limited | Wholesale & retail | 2024 |
| Xcell Rowing Limited | Manufacturing | 2002 |
| Xclusif CIC | Professional & scientific | 2025 |
| Xite Logistics & Products Ltd | Wholesale & retail | 2020 |
| Xmaze Limited | Manufacturing | 2023 |
| XOX Productions Ltd | Administrative & support | 2025 |
| Xpand Management Solutions Limited | Information & communication | 2008 |
| XUE SHI Rental Limited | Real estate | 2025 |
| Xyracel Services Limited | Information & communication | 2015 |
| Yaelwood Limited | Real estate | 2019 |
| YG Haulage Ltd | Transport & logistics | 2019 |
| Yginstall Ltd | Construction | 2025 |
| YH Consulting Limited | Other services | 2021 |
| Yospace Technologies Limited | Information & communication | 2002 |
| Your Science Teacher Limited | Education | 2025 |
| Your Virtual Finance Solution Ltd | Professional & scientific | 2021 |
| YRC Limited | Information & communication | 2025 |
| Yuvraj Transport Ltd | Transport & logistics | 2018 |
| YYI Traders Ltd | Wholesale & retail | 2025 |
| Z & S Group Ltd | Households | 2026 |
| Z a Property Partnership Ltd | Real estate | 2023 |
| ZAK Car Dealers Ltd | Wholesale & retail | 2022 |
| Zalvryn Estates Limited | Construction | 2024 |
| ZAR Corporation Ltd | Financial services | 2024 |
| Zarol Limited | Real estate | 2020 |
| Zarolian Consultancy Ltd | Hospitality | 2025 |
| Zarvon Ltd | Information & communication | 2026 |
| Zazo Refurb Ltd | Wholesale & retail | 2022 |
| Zeep Property Group Ltd | Real estate | 2024 |
| ZEN Information Technology Ltd | Information & communication | 2021 |
| Zhongke Overseas Investment Co., Ltd | Real estate | 2014 |
| ZI Automotive Ltd | Wholesale & retail | 2025 |
| ZK Facilities Ltd | Construction | 2019 |
| ZMW Services Ltd | Wholesale & retail | 2025 |
| ZOE Training Limited | Education | 2019 |
| Zoltan Project Ltd | Construction | 2024 |
| Zonale Ltd | Information & communication | 2023 |
| Zora Haulage Ltd | Transport & logistics | 2018 |
| Zorawar Solutions Ltd | Extraterritorial | 2018 |
| Zosmile Ltd | Health & social care | 2024 |
| Zuber Mitchla Limited | Professional & scientific | 2002 |
| Zudaro Ltd | Information & communication | 2025 |
| Zvma Ltd | Transport & logistics | 2024 |
| Zynka Technologies Limited | Information & communication | 2025 |