| Visual Advertising Limited | Wholesale & retail | 1971 |
| Vita Manufacture Holdings Limited | Financial services | 2025 |
| Vita Manufacture Limited | Manufacturing | 2020 |
| Vita Manufacture Supplements (UK) Limited | Manufacturing | 2025 |
| Vita Shakti Ltd | Wholesale & retail | 2019 |
| Vital Spark Training Consultants Limited | Professional & scientific | 2004 |
| Viva Arts and Community Group Limited | Arts & recreation | 2007 |
| Viva Community Trading Limited | Wholesale & retail | 2011 |
| Vizionaria Developments Ltd | Real estate | 2023 |
| VJ Career Solution Ltd | Administrative & support | 2023 |
| VM Match Limited | Professional & scientific | 2015 |
| VMS Management Ltd | Professional & scientific | 2013 |
| Vulcan Fire Safety Ltd | Public administration | 2023 |
| W J Taylor Holdings Ltd | Financial services | 2021 |
| W&G Growers Ltd | Agriculture & fishing | 2022 |
| W.L. Complete Maintenance Solutions Limited | Construction | 2026 |
| Wades of ELY Limited | Wholesale & retail | 2015 |
| Wadicci Cambridge Ltd | Extraterritorial | 2017 |
| Waheed Estates Limited | Real estate | 2023 |
| Walden Kennel Ltd | Other services | 2020 |
| Wallace Arnold Coaches Ltd | Transport & logistics | 2011 |
| Wallis Secretarial Limited | Administrative & support | 2017 |
| Walnut Courtyard (Soham) Limited | Administrative & support | 2007 |
| Walters Management Services Limited | Administrative & support | 1988 |
| Waltham Grange Residents Management Company Limited | Households | 2023 |
| Waltz Entertainment Ltd | Hospitality | 2017 |
| Wash-A-Dog Ltd | Extraterritorial | 2011 |
| Wastecom Limited | Water & waste | 2023 |
| Water to Wire Limited | Professional & scientific | 2010 |
| Waterbeach Residents Company Limited | Households | 2002 |
| Waves of Wood Ltd | Manufacturing | 2016 |
| Waves Swim Limited | Arts & recreation | 2018 |
| Waxmills Property Limited | Real estate | 2024 |
| Wayfinder Pins and Beyond Ltd | Wholesale & retail | 2025 |
| WB Clubs Limited | Professional & scientific | 1993 |
| WE Access Solutions Limited | Administrative & support | 2026 |
| WE ARE Blueshed Ltd | Arts & recreation | 2017 |
| WE Glow UP Ltd | Wholesale & retail | 2024 |
| WE Love 3D Limited | Wholesale & retail | 2019 |
| Wearesofresh Ltd | Wholesale & retail | 2022 |
| Weaver Marine (Property) Limited | Real estate | 2005 |
| Weaver Marine Limited | Manufacturing | 2006 |
| Weorclic Limited | Information & communication | 2017 |
| Wesley COE (Cambridge) Limited | Manufacturing | 1952 |
| West Africa Farms Holdings Limited | Financial services | 2010 |
| West END (Haddenham) Management Company Limited | Households | 2023 |
| West END Public House Ltd | Hospitality | 2019 |
| West Green Place Management Company Limited | Households | 2019 |
| West Norfolk Waste Services Ltd | Water & waste | 2023 |
| West Pipe Services Limited | Manufacturing | 2017 |
| Westmoor Developments Ltd | Construction | 2022 |
| Westmoor Produce Limited | Agriculture & fishing | 1972 |
| Whaley Electrical Limited | Construction | 2018 |
| Wheatley Associates Cambridge Limited | Information & communication | 2013 |
| Wheelchair Salvage Ltd | Wholesale & retail | 2024 |
| Where IS Kevin Ltd | Information & communication | 2023 |
| White & Red Foods Limited | Wholesale & retail | 2011 |
| White Hart Lane Properties Limited | Real estate | 2016 |
| White Monday Ltd | Professional & scientific | 2016 |
| White Picket Properties Ltd | Real estate | 2017 |
| White's Wheels Ltd | Administrative & support | 2026 |
| Whiteman Publishing Limited | Information & communication | 2025 |
| Whitings Group LLP | | 2010 |
| Whitings Holdings LLP | | 2019 |
| Whizzle Limited | Wholesale & retail | 1992 |
| Whyatts Amusements Ltd | Arts & recreation | 2023 |
| Whygo Europe Limited | Administrative & support | 2007 |
| Wicken 1973 Limited | Extraterritorial | 2015 |
| Wilcy Educational Company Ltd | Education | 2024 |
| Wild Courier Ltd | Transport & logistics | 2014 |
| Wild FIG Holdings Ltd | Financial services | 2025 |
| Wild Thyme & Embers Limited | Education | 2016 |
| Wild Thyme Botanicals Ltd | Manufacturing | 2024 |
| Wildlife & Water Limited | Professional & scientific | 2007 |
| Willas Group Ltd | Information & communication | 2025 |
| William Martin (Littleport) Limited | Agriculture & fishing | 1987 |
| Willie Snaith Limited | Real estate | 2018 |
| Willis and Stone Ltd | Manufacturing | 2021 |
| Willis Lettings Limited | Real estate | 2021 |
| Willis Software Limited | Information & communication | 2016 |
| Willmec Ltd | Administrative & support | 2023 |
| Willow House Stables Limited | Agriculture & fishing | 2020 |
| Willy’S Motors Limited | Wholesale & retail | 2025 |
| Wilo Investments Limited | Health & social care | 2014 |
| Wind Designs Limited | Wholesale & retail | 2002 |
| Windmill Books Limited | Information & communication | 2009 |
| Window Restoration Contracts Limited | Construction | 2020 |
| Winkworth Contractors Ltd | Construction | 2012 |
| Winterim Solutions Limited | Professional & scientific | 2017 |
| Winthorpe Limited | Wholesale & retail | 2009 |
| Wireless Telegraph and Signal Company Limited | Professional & scientific | 2024 |
| Witcham House Farm Limited | Administrative & support | 2022 |
| Witchford Village Store Ltd | Wholesale & retail | 2023 |
| Witzlo Investments Ltd | Health & social care | 2026 |
| WJT Investments Ltd | Financial services | 2021 |
| WMC Technical Packaging Ltd | Wholesale & retail | 2018 |
| WMS (Cambridge) Ltd | Manufacturing | 2019 |
| WMS Services (Cambridge) Ltd | Wholesale & retail | 2022 |
| WN Legacy Limited | Real estate | 2023 |
| Wolfpack Partners Limited | Professional & scientific | 2016 |