| Vstone Ltd | Construction | 2026 |
| Vvng Estates Limited | Real estate | 2016 |
| VVP Services Ltd | Transport & logistics | 2019 |
| W & S Plumbers Ltd | Construction | 2012 |
| W.G.W. Leisure Enterprises (Sawbridgeworth) Limited | Construction | 1975 |
| Wacky IT Limited | Information & communication | 2006 |
| Wade Enterprises Consultancy Ltd | Professional & scientific | 2021 |
| Waldorf & Cinnamon Physio Ltd | Health & social care | 2020 |
| Walkers Instore Limited | Manufacturing | 2009 |
| Wardfell Limited | Real estate | 1999 |
| Warehouse Distribution Limited | Wholesale & retail | 2013 |
| Warren Court Construction Limited | Construction | 2014 |
| Warwool Limited | Real estate | 1956 |
| Waste Knot CIC | Agriculture & fishing | 2014 |
| Water&Flouruk Ltd | Wholesale & retail | 2022 |
| Watts Consultancy Limited | Professional & scientific | 2007 |
| Way Trade Ltd | Wholesale & retail | 2025 |
| Wchm Limited | Construction | 2015 |
| WE DO Weddings Ltd | Professional & scientific | 2023 |
| WE Love Solutions Limited | Construction | 2011 |
| Weinstein Solutions Limited | Other services | 2012 |
| Well Laid OUT Limited | Professional & scientific | 2014 |
| Wentworth Freehold Management Ltd | Households | 2022 |
| Wentzel Consultants Limited | Professional & scientific | 2014 |
| Werkman Limited | Construction | 2021 |
| Westfield Roofing Company Limited | Construction | 1999 |
| Westminster Plumbing Ltd | Construction | 2015 |
| Whartons Pet Services Ltd | Other services | 2013 |
| Wheels (MOT Centre) Limited | Wholesale & retail | 1994 |
| Wicked Noise Ltd | Information & communication | 2017 |
| Wigmore Farm (Aghadowey) Limited | Agriculture & fishing | 1991 |
| Wildebrook Consulting Ltd | Professional & scientific | 2022 |
| Wildish Wealth Management Ltd | Real estate | 2024 |
| Wildlife Photography Workshops Ltd | Professional & scientific | 2019 |
| Willem Heskes Limited | Other services | 2013 |
| Williams Management Consultants Ltd | Other services | 2020 |
| Williams Mercedes Specialist Limited | Other services | 2018 |
| Wisdom Centre Limited | Health & social care | 2023 |
| Wisdom Coaching and Counselling Centre Ltd | Health & social care | 2023 |
| WMC Ashtree Stud Limited | Professional & scientific | 2014 |
| Wondertech Limited | Real estate | 1998 |
| Woodcraft Bespoke Limited | Manufacturing | 2013 |
| Woods London Limited | Construction | 2013 |
| Work ME Shape ME Limited | Information & communication | 2019 |
| WTC World Trading Company Ltd | Extraterritorial | 2024 |
| Xelvio Ltd | Public administration | 2026 |
| Xplor Trading Ltd | Hospitality | 2022 |
| Y L Beauty Ltd | Other services | 2024 |
| Yard Living Ltd | Hospitality | 2026 |
| Yellow Zebras Consulting Ltd | Professional & scientific | 2025 |
| Yingle Limited | Professional & scientific | 2012 |
| YKK Ltd | Wholesale & retail | 2026 |
| YOU Know What YOU Need Ltd | Other services | 2024 |
| Youchomp Limited | Hospitality | 2009 |
| Young Controls Ltd | Professional & scientific | 2026 |
| Zenkoa Limited | Real estate | 2024 |
| ZES Group Limited | Construction | 2022 |
| Zios Medical Services Limited | Health & social care | 2021 |
| Zireael Limited | Information & communication | 2019 |
| ZM Developments Ltd | Construction | 2019 |
| ZM Technologies London Ltd | Information & communication | 2024 |
| Zolfiproperty Limited | Real estate | 2019 |
| Zuvion Limited | Information & communication | 2011 |
| Zynergi Talent Ltd | Administrative & support | 2025 |