| Vision UN. Limited | Real estate | 2006 |
| Visualab Media Ltd | Administrative & support | 2014 |
| Voxstar Limited | Information & communication | 2009 |
| W B Bucks & Beds Limited | Administrative & support | 2004 |
| W.C.Emmett & Sons Limited | Agriculture & fishing | 1958 |
| W.Hands and Sons Limited | Professional & scientific | 1934 |
| Waddesdon M O T Station Limited | Wholesale & retail | 2005 |
| Wainwright & Sons (Risborough) Limited | Wholesale & retail | 1947 |
| WDS Building Contractors Ltd | Construction | 2011 |
| WE Sell ANY Ride Limited | Professional & scientific | 2025 |
| Weatherley's Garage Limited | | 1965 |
| Westhorpe Leisure Limited | Extraterritorial | 1984 |
| Which-Wood Joinery Limited | Manufacturing | 1993 |
| White Poppy Mediation Ltd | Professional & scientific | 2022 |
| Whitestock Consultancy Limited | Professional & scientific | 2019 |
| Willand International Limited | Administrative & support | 2003 |
| Williams Estate Agency (Aylesbury) Limited | Real estate | 2007 |
| Windetch Limited | Manufacturing | 1984 |
| Woodcliffe Print and Display Limited | | 1982 |
| Woodpledge Limited | | 1977 |
| Wright Funeral Services Limited | Other services | 1994 |
| Wycombe Badminton Centre Limited | Arts & recreation | 1984 |
| Wycombe Islamic Mission and Mosque Trust Limited | Health & social care | 1983 |
| Yellow Yeti Limited | Arts & recreation | 2006 |