| Ware-Lane Consulting Limited | Professional & scientific | 2022 |
| Warescot Development Limited | Construction | 2025 |
| Warescot House RTM Company Limited | Households | 2013 |
| Warley Grange Health Ltd | Health & social care | 2017 |
| Warley Hill Practice Ltd. | Health & social care | 2016 |
| Warley Hill Spice Ltd | Hospitality | 2025 |
| Warley Investment Services Ltd | Professional & scientific | 2002 |
| Warley Road Properties Limited | Real estate | 2025 |
| WARLEYFISHBAR27 Ltd | Hospitality | 2025 |
| Warner Management Limited | Information & communication | 2019 |
| Warrior Boxing Ltd | Arts & recreation | 2007 |
| Warton Freight Services Limited | Transport & logistics | 1990 |
| Warwick Roofing Contractors Ltd | Construction | 2019 |
| Wash Tech Limited | Transport & logistics | 2015 |
| Wash Wise Limited | Administrative & support | 2019 |
| Waste to Energy (Essex) Ltd | Water & waste | 2018 |
| Watchment Wines UK Limited | Wholesale & retail | 2025 |
| Waterford Search Ltd | Administrative & support | 2024 |
| Watersplash Lane Management Company Limited | Households | 2019 |
| Waterstone Land & New Homes Limited | Construction | 2004 |
| Watts Wealth Management Holdings Limited | Financial services | 2025 |
| Wave Run Limited | Professional & scientific | 2018 |
| Wayland Games Limited | Manufacturing | 2008 |
| Wayletts South Essex Ltd | Administrative & support | 2025 |
| Wayne Kinnear Limited | Construction | 2004 |
| Waypoint Advisors Ltd | Professional & scientific | 2026 |
| WC Sandwich Ltd | Hospitality | 2017 |
| WCA Property Limited | Arts & recreation | 2019 |
| WD Properties (UK) Ltd. | Real estate | 1994 |
| WE ARE Creative (Web Design) Ltd | Information & communication | 2018 |
| WE ARE Reimagined Ltd | Other services | 2026 |
| WE Build & Maintain Ltd | Construction | 2019 |
| WE Clean Windows (Essex) Ltd | Administrative & support | 2017 |
| WE3 Collective Limited | Professional & scientific | 2013 |
| Weald Brook Residents Limited | Households | 2020 |
| Wear London Holdings Limited | Wholesale & retail | 2025 |
| Wear London Limited | Wholesale & retail | 2020 |
| Weatherwax Limited | Information & communication | 2017 |
| Webfruits Ltd | Real estate | 2008 |
| Webmine Limited | Information & communication | 2003 |
| Websdale Ltd | Information & communication | 2023 |
| Wedontslowdown Ltd | Administrative & support | 2023 |
| Weflex 1 Ltd | Administrative & support | 2016 |
| Weight Aggregates Limited | Wholesale & retail | 2007 |
| Welful Securities Ltd | Real estate | 2011 |
| Weliftun Limited | Construction | 2022 |
| Well BE ME Limited | Health & social care | 2018 |
| Well Connected Electrical Services Ltd | Construction | 2014 |
| Well Supplements Limited | Wholesale & retail | 2025 |
| Wellingborough Capital Management Ltd | Professional & scientific | 2024 |
| Wellness for Law Limited | Other services | 2017 |
| Wells Worldwide Limited | Wholesale & retail | 2021 |
| Wellspring Physiotherapy Ltd | Administrative & support | 2014 |
| Wenlock Way Limited | Construction | 2003 |
| Wentwood Holdings Ltd | Construction | 2022 |
| Wentworth Holdings Inc Ltd | Financial services | 2023 |
| Wentworth Holdings Limited | Professional & scientific | 2015 |
| Wesley Thorne Limited | Information & communication | 2003 |
| West Consultancy Group Ltd | Professional & scientific | 2021 |
| West Drylining and Facades Ltd | Construction | 2005 |
| West END Interiors Limited | Wholesale & retail | 1989 |
| West Essex Shotokan Karate Clubs Limited | Arts & recreation | 2023 |
| West Manor Building Services Limited | Construction | 2022 |
| West Rising Ltd | Administrative & support | 2013 |
| West Way Heating Ltd | Construction | 2009 |
| Westbury Court Residents Association Limited | Professional & scientific | 2006 |
| Westbury CRT Limited | Households | 2016 |
| Western Imports & Exports UK Limited | Other services | 2009 |
| Westleigh Cherry Bank LLP | | 2008 |
| Westleigh Construction Limited | Extraterritorial | 1985 |
| Westleigh Homes Limited | Extraterritorial | 1994 |
| Westleigh LNT Limited | Professional & scientific | 2016 |
| Westport Environmental & Property Services Ltd | Administrative & support | 2014 |
| Westridge Advisory Limited | Professional & scientific | 2019 |
| Westwood Country Parks Limited | Hospitality | 2022 |
| Westwood Developments (Eastern) Limited | Construction | 2003 |
| Westwood Park Farm Limited | Hospitality | 2018 |
| Westwood Park Homes Limited | Extraterritorial | 2014 |
| Wevers Financial Partners Limited | Financial services | 2025 |
| WEY Valley Music Limited | Other services | 1980 |
| Weybridge Radiological Services Limited | Health & social care | 1999 |
| Weylands Court Residents Association Limited | Households | 2006 |
| WGC Sash & Joinery Ltd | Manufacturing | 2025 |
| WH Swan Limited | Hospitality | 2023 |
| Wharf Trading International Ltd | Wholesale & retail | 2015 |
| Wharfside Car Valet Service Limited | Other services | 2005 |
| Whatleyworks Group Ltd | Construction | 2025 |
| Whats the Time Ltd | Wholesale & retail | 2023 |
| Whatsthetime Competitions Ltd | Wholesale & retail | 2025 |
| Whilt Ltd | Information & communication | 2025 |
| Whipples Land Ltd | Real estate | 2017 |
| Whisper & Willow Personal Assistance Ltd | Administrative & support | 2025 |
| Whitby Heating Ltd | Construction | 2017 |
| White Designs Interiors Ltd | Professional & scientific | 2022 |
| White Elephant Investments Limited | Information & communication | 2015 |
| White Lotus Wealth Ltd | Financial services | 2015 |
| Whitegate (UK) Limited | Wholesale & retail | 2013 |
| Whitevale Management Limited | Real estate | 2025 |
| Whiting Building Company Ltd. | Construction | 2022 |
| Whitkinson Partnership LLP | | 2008 |