| Wellbeing for ALL Limited | Administrative & support | 2018 |
| Wellingtonia Gardens (Stamford) Limited | Households | 2017 |
| Wellplaced Care Limited | Health & social care | 2025 |
| Wells Road Stiffkey Ltd | Construction | 2022 |
| Wells Vehicle Solutions Ltd | Wholesale & retail | 2025 |
| Wene Cleaning Services Ltd | Administrative & support | 2022 |
| Wentworth & Laxton Associates Limited | Other services | 2018 |
| Werrington Convenience Store Limited | Wholesale & retail | 2012 |
| Werrington Dental Laboratory Ltd | Manufacturing | 2007 |
| Werrington Dental Ltd | Health & social care | 2022 |
| Werrington Healthcare Limited | Wholesale & retail | 2000 |
| Werrington Investments Limited | Real estate | 2020 |
| Werrington Roofing Ltd | Construction | 2025 |
| Werringtons Kettering Limited | Hospitality | 2022 |
| Wese Consulting Services Limited | Information & communication | 2018 |
| Wesellandbuyvehicles.Com Limited | Wholesale & retail | 2014 |
| Wessex Distribution Limited | Wholesale & retail | 2017 |
| West Bay Park Limited | Hospitality | 2019 |
| West Bleeker Ltd | Professional & scientific | 2024 |
| West END Options Limited | Construction | 2016 |
| West London Point Ltd | Information & communication | 2015 |
| West Street Chatteris Development Ltd | Construction | 2026 |
| West Street Oundle Management Company Limited | Households | 2003 |
| West Town Barbers Ltd | Other services | 2025 |
| West Town Bouquets Ltd | Wholesale & retail | 2025 |
| West Town Fruit and VEG Ltd | Wholesale & retail | 2025 |
| West Vale Residents Company Limited | Households | 2001 |
| Westbank Properties Ltd | Financial services | 2013 |
| Westbrook Property & Rental Limited | Real estate | 2024 |
| Westcalveley Ltd | Administrative & support | 2016 |
| Westend Carz Ltd | Wholesale & retail | 2025 |
| Westfield Nurseries Ltd | Wholesale & retail | 2024 |
| Westfield Patterns (UK) Limited | Administrative & support | 2012 |
| Westgate ABC Limited | Hospitality | 2023 |
| Westgate Convenience Store Limited | Wholesale & retail | 2014 |
| Westlee Limited | Health & social care | 1993 |
| Westmoreland Management Company Limited | Real estate | 2009 |
| Weston Park MX Ltd | Wholesale & retail | 2019 |
| Westone Housing Limited | Construction | 2008 |
| Westpoint Contracts Ltd | Real estate | 2024 |
| Westpool Developments Limited | Real estate | 2017 |
| Westport Composites Ltd | Manufacturing | 2026 |
| Westview Holdings Limited | Financial services | 2017 |
| Westview Investments (Peterborough) Limited | Administrative & support | 2017 |
| Westwood Barbers Ltd | Other services | 2025 |
| Westwood Commercial Property Development Ltd | Real estate | 2022 |
| Westwood Farm Property Limited | Real estate | 1998 |
| Westwood Food & Wine Ltd | Wholesale & retail | 2008 |
| Westwood MOT & Repairs Ltd | Wholesale & retail | 2018 |
| Westwood MOT Centre Ltd | Wholesale & retail | 2021 |
| Wexland Avenue (Netheravon) Residents Company Limited | Other services | 2023 |
| Weymc Ltd | Information & communication | 2020 |
| WF & W Ltd | Wholesale & retail | 2022 |
| WF Motor Trade Limited | Wholesale & retail | 2014 |
| WF PB Midco Ltd | Financial services | 2024 |
| Wfmf Group Holdings Limited | Professional & scientific | 2022 |
| Wfmf Limited | Professional & scientific | 2022 |
| WGB Properties (Peterborough) Ltd | Real estate | 2025 |
| WGT Trans Ltd | Transport & logistics | 2026 |
| WH Peterborough Limited | Construction | 2020 |
| WH Techno Ltd | Wholesale & retail | 2019 |
| Wham Foods Limited | Hospitality | 2024 |
| Whamwings Ltd | Hospitality | 2026 |
| What Skip Limited | Water & waste | 2024 |
| WHAT2WOW Limited | Professional & scientific | 2025 |
| Wheatsheaf Court Management Company Limited | Construction | 2012 |
| Wheatsheaf House Limited | Households | 1995 |
| Wheel-Men Ltd | Wholesale & retail | 2018 |
| Wheeler & Walker Mortgage Solutions Limited | Financial services | 2018 |
| Whenmoonlabs Limited | Information & communication | 2026 |
| Where the Wild Ones Learn Ltd | Education | 2023 |
| Whetstone Millson Close Residents Company Limited | Households | 2012 |
| Whgolden Goods Ltd | Wholesale & retail | 2023 |
| Whisk and Waffle Ltd | Hospitality | 2026 |
| White Box Property Ltd | Real estate | 2019 |
| White Camel Stays Ltd | Households | 2025 |
| White Cloves Ltd | Wholesale & retail | 2025 |
| White Cross Ravensthorpe Management Ltd | Real estate | 2026 |
| White Eagle Transport Ltd | Transport & logistics | 2026 |
| White FOX Consultants Limited | Professional & scientific | 2024 |
| White Heat Productions Ltd | Wholesale & retail | 2019 |
| White Key IT Services Limited | Information & communication | 2015 |
| White Knight Heating Services Ltd | Construction | 2024 |
| White Label IT Ltd | Information & communication | 2023 |
| White PD Group Limited | Financial services | 2021 |
| White Peak Investments Ltd | Real estate | 2024 |
| White Production Design Ltd | Arts & recreation | 2015 |
| White Property Finance Ltd | Real estate | 2013 |
| White Sands Investments Ltd | Real estate | 2020 |
| White Square Surveys Ltd | Construction | 2017 |
| White Swan Beauty Ltd | Other services | 2018 |
| White Trans KD Ltd | Transport & logistics | 2020 |
| White Waltham Residents Company Limited | Households | 2011 |
| White-Red-Black Properties Ltd | Real estate | 2024 |
| Whitehead Auto Service Limited | Wholesale & retail | 2026 |
| Whiteheads (1858) Limited | Manufacturing | 2003 |
| Whitestone TEE Ltd | Health & social care | 2020 |
| Whitetower Energy Limited | Energy | 1997 |
| Whitetower Holdings UK Limited | Financial services | 2019 |
| Whitetower Real Estate Holdings Limited | Real estate | 2021 |