| Wing Express Store Limited | Wholesale & retail | 2016 |
| Wing IT (MK) Limited | Hospitality | 2024 |
| Wings of Support Ltd | Education | 2008 |
| Wingtip Ventures Limited | Professional & scientific | 2012 |
| Winkworth Group Limited | Financial services | 2025 |
| Winterborne Limited | Real estate | 2018 |
| Winterborne Services Limited | Administrative & support | 2019 |
| Winterfell Care Home Consultancy Ltd | Professional & scientific | 2022 |
| Winterhalter Ltd | Manufacturing | 1970 |
| Winterhill Finance Ltd | Financial services | 2016 |
| Winton Haulage Limited | Construction | 1994 |
| Wintop Agro-Processing Centre Ltd | Wholesale & retail | 2026 |
| Wire & WAX Limited | Arts & recreation | 2025 |
| Wired Online Ltd | Construction | 2010 |
| Wireprep Ltd | Manufacturing | 2018 |
| Wires & Wireless Ltd | Professional & scientific | 2013 |
| WIS Trade Windows Limited | Wholesale & retail | 2014 |
| Wisdom Tech Ltd | Information & communication | 2020 |
| Wisdom to Wealth Limited | Health & social care | 2019 |
| Wise Choice Exclusive Styles Ltd | Wholesale & retail | 2025 |
| Wise Click Ltd | Wholesale & retail | 2020 |
| Wise Financial Solutions Ltd | Wholesale & retail | 2023 |
| Wise Guys Juice Ltd | Manufacturing | 2017 |
| Wise Lane Ltd | Real estate | 2019 |
| Wise Staffing Recruitment Limited | Administrative & support | 2024 |
| Wise Walls Limited | Real estate | 2018 |
| Wiseacres Estates Limited | Real estate | 2023 |
| Wisenest Living Limited | Real estate | 2025 |
| Wisestart Academy CIC | Education | 2025 |
| Wisestart Accountancy Training Ltd | Professional & scientific | 2023 |
| Wisestone Consulting Ltd | Professional & scientific | 2020 |
| Wish | Health & social care | 1996 |
| Wish Interior Architecture Ltd | Administrative & support | 2018 |
| Wish Management Ltd | Information & communication | 2024 |
| Wishlights Trading Limited | Wholesale & retail | 2023 |
| Wiskitrans Ltd | Transport & logistics | 2025 |
| Wiston Business Park Limited | Transport & logistics | 2013 |
| Witan Search Limited | Administrative & support | 2021 |
| With ME Ltd | Information & communication | 2025 |
| With Nehar Ltd | Professional & scientific | 2021 |
| Withintime Consulting Limited | Information & communication | 2012 |
| Wittey Machinery Limited | Wholesale & retail | 1977 |
| Wittey Machinery Sales Limited | Wholesale & retail | 2025 |
| Wivelsfield Management Company Limited | Households | 2025 |
| Wixams Holdings Ltd | Real estate | 2026 |
| Wixams Stores Limited | Wholesale & retail | 2012 |
| Wizard Advertising Ltd | Professional & scientific | 2008 |
| Wizlon Services Ltd | Wholesale & retail | 2025 |
| WJ Products Limited | Manufacturing | 2000 |
| WJ South Limited | Construction | 1994 |
| WJ Sunstone Limited | Manufacturing | 2001 |
| WJ3 Events Limited | Administrative & support | 2014 |
| WK Advisory Limited | Professional & scientific | 2014 |
| WLE Residential Limited | Real estate | 2019 |
| Wllm Rise Ltd | Wholesale & retail | 2025 |
| Wlsiestone Ltd | Professional & scientific | 2026 |
| Wlyani Car Wash Ltd | Wholesale & retail | 2025 |
| WM Commercial Advisory Ltd | Professional & scientific | 2026 |
| WM Contractors Ltd | Construction | 2023 |
| WM General Consults Services Ltd | Wholesale & retail | 2025 |
| WM Law Ltd | Professional & scientific | 2024 |
| Wmasn Ltd | Professional & scientific | 2024 |
| WMG Office Interiors Limited | Construction | 2004 |
| WMH Investments Limited | Administrative & support | 2017 |
| WNW Transport Ltd | Transport & logistics | 2025 |
| WOB Trade Limited | Wholesale & retail | 2023 |
| Woburn 1986 | Real estate | 2014 |
| Woburn Artbeat C.I.C. | Arts & recreation | 2012 |
| Woburn Cars Ltd | Wholesale & retail | 2019 |
| Woburn Chemicals Limited | Manufacturing | 1969 |
| Woburn China Shop Limited | Wholesale & retail | 1978 |
| Woburn Commercial Services Limited | Administrative & support | 2019 |
| Woburn Enterprises Limited | Wholesale & retail | 1969 |
| Woburn Estate Company Limited | Real estate | 1982 |
| Woburn Finance Ltd | Financial services | 2023 |
| Woburn Golf Club Limited | Arts & recreation | 1976 |
| Woburn Lodge Limited | Real estate | 2001 |
| Woburn Madraj Limited | Hospitality | 2025 |
| Woburn Mosaic Limited | Wholesale & retail | 2018 |
| Woburn MOT & Auto Repair Ltd | Wholesale & retail | 2023 |
| Woburn Osteopaths Limited | Health & social care | 2024 |
| Woburn RP Limited | Real estate | 2013 |
| Woburn Sands Assets Limited | Real estate | 2025 |
| Woburn Sands Block "a" Management Company Limited | Households | 1990 |
| Woburn Sands Block "B" Management Company Limited | Households | 1990 |
| Woburn Sands Block "C" Management Company Limited | Households | 1990 |
| Woburn Sands Block "D" Management Company Limited | Households | 1990 |
| Woburn Sands Bowls Club Ltd | Arts & recreation | 2012 |
| Woburn Sands Festival CIC | Health & social care | 2026 |
| Woburn Sands Foot Clinic Limited | Health & social care | 2026 |
| Woburn Sands Holdings Limited | Financial services | 2025 |
| Woburn Scaffolding Limited | Construction | 2025 |
| Woburn Strategic Properties Limited | Professional & scientific | 2015 |
| Woburn View (NO. 1) Management Co. Limited | Administrative & support | 1987 |
| Woburn Winery Ltd | Hospitality | 2025 |
| WOK Solutions Ltd | Hospitality | 2026 |
| WOK Unit Ltd | Hospitality | 2024 |
| Wolf Site Services Ltd | Administrative & support | 2022 |
| Wolfwood Consulting Limited | Construction | 2013 |
| Wolverton Car and Tyre Services Limited | Wholesale & retail | 2014 |