| Woodton Management Company Limited | Households | 2022 |
| Woodton Saxon Fields Management Company Limited | Households | 2025 |
| Woodton Street Management Company Limited | Households | 2025 |
| Woodward Project Management Ltd | Construction | 2012 |
| Woofs and Walks Norwich Ltd | Other services | 2025 |
| Woolco Professional Services Limited | Professional & scientific | 2021 |
| Woolgate Nitrovit Limited | Professional & scientific | 1930 |
| Woolleys Service Station Ltd | Wholesale & retail | 2015 |
| Woolliscroft Consultants Ltd | Real estate | 2026 |
| Woolnough & Cogman Limited | Real estate | 1951 |
| Word Savvy Limited | Administrative & support | 2004 |
| Wordley & Webb Limited | Real estate | 2020 |
| Wordplay Magazine Limited | Arts & recreation | 2017 |
| Wordsworth & Associates Ltd | Administrative & support | 2011 |
| Wordtracker Limited | Information & communication | 1999 |
| Work and Wellbeing Limited | Health & social care | 2006 |
| Work in Progress Advisory Limited | Administrative & support | 2025 |
| Work Space Industries Beacon Park Limited | Construction | 2024 |
| WORK4CE Ltd | Administrative & support | 2023 |
| Workbox Advisory Limited | Professional & scientific | 2019 |
| Workdone Ltd | Professional & scientific | 2017 |
| Worker BEE Publishing Ltd | Information & communication | 2009 |
| WORKERS4U Limited | Administrative & support | 2018 |
| Workforce Scheduling Solutions Limited | Information & communication | 2013 |
| Workhappy Ltd | Extraterritorial | 2025 |
| Working Cast Limited | Administrative & support | 2019 |
| Working Title Clothing Ltd | Wholesale & retail | 2016 |
| Workplaceworks Limited | Administrative & support | 2013 |
| Workrr Solutions Ltd | Information & communication | 2026 |
| Worksmarter Limited | Information & communication | 2018 |
| Worksystems Limited | Other services | 2009 |
| Worktools Technology Ltd | Information & communication | 2014 |
| World Bitless Association Limited | Other services | 2012 |
| World Bridge Enterprises Limited | Wholesale & retail | 2025 |
| World Energy & Meteorology Council | Professional & scientific | 2015 |
| World of Beds Limited | Professional & scientific | 1988 |
| World of Colour Ltd | Professional & scientific | 2018 |
| World Phone Ltd | Other services | 2023 |
| World Sports Xchange Limited | Arts & recreation | 2010 |
| Worldnet Consultants Limited | Administrative & support | 2015 |
| Worldofmusic Limited | Wholesale & retail | 2018 |
| Worldwide Products (East Anglia) Limited | Extraterritorial | 2017 |
| Worple Ltd | Hospitality | 2019 |
| Worstead Estate Limited | Hospitality | 2016 |
| Worstead Logistics Ltd | Construction | 2025 |
| Worstead Park Limited | Extraterritorial | 2002 |
| Worster Court Residents Association Limited | Households | 1982 |
| WORTHWAITING4 Limited | Professional & scientific | 2002 |
| Wot-A-Waffle Ltd | Hospitality | 2025 |
| WOW (EA) Ltd | Administrative & support | 2015 |
| WOW Retail Ltd | Wholesale & retail | 2011 |
| WP EOT Limited | Financial services | 2024 |
| WP Resource Limited | Transport & logistics | 2016 |
| Wpac One Limited | Real estate | 2021 |
| Wpac Two Limited | Real estate | 2021 |
| WPM Paving Ltd | Construction | 2021 |
| WR Project 2 Limited | Real estate | 2016 |
| Wray Accountancy Ltd | Professional & scientific | 2017 |
| Wray Accountants Limited | Professional & scientific | 1999 |
| Wren Nest Ltd | Professional & scientific | 2023 |
| Wrenco Developments Ltd | Construction | 2023 |
| Wrenco Property Services Ltd | Construction | 2026 |
| Wreningham Development Land Two Limited | Households | 2017 |
| Wrennie, Lennie & Miso Ltd | Wholesale & retail | 2024 |
| Wright & Yaxley Limited | Construction | 2003 |
| Wright Accountancy (Norfolk) Limited | Professional & scientific | 2013 |
| Wright Construction Services Ltd | Administrative & support | 2017 |
| Wright Enterprises (Norfolk) Ltd | Construction | 2022 |
| Wright Geomatics Ltd | Construction | 2018 |
| Wright Renewables Ltd | Construction | 2014 |
| Wrightclick Limited | Professional & scientific | 2013 |
| Wrightpropertygroup Ltd | Real estate | 2022 |
| Wrights Property Developments Limited | Construction | 2003 |
| Wrights Restaurant Limited | Hospitality | 2003 |
| Wrightsolar Ltd | Construction | 2006 |
| Write Business Results Limited | Information & communication | 2016 |
| Write for Life Ltd | Administrative & support | 2019 |
| Writing IT Today Ltd | Information & communication | 2022 |
| Wrong OR Write Ltd | Arts & recreation | 2012 |
| Wroxham Barns Limited | Wholesale & retail | 1982 |
| Wroxham Bridge Developments Ltd | Hospitality | 2016 |
| Wroxham Builders Limited | Construction | 1964 |
| Wroxham Guns & Shooting Supplies Ltd | Wholesale & retail | 2012 |
| Wroxham Hand Car Wash Ltd | Administrative & support | 2026 |
| Wroxham Heating Ltd | Construction | 2011 |
| Wroxham Miniature Worlds Limited | Arts & recreation | 2012 |
| WRR Leisure Limited | Hospitality | 2010 |
| WRS Developments Limited | Real estate | 2024 |
| WRS Recruitment Limited | Administrative & support | 2009 |
| WRS Rentals Limited | Real estate | 2024 |
| WS Builders Ltd | Construction | 2024 |
| WS Design & Build (Architectural) Limited | Construction | 2015 |
| WSB Developments (Bedfield) Limited | Construction | 2024 |
| WSB Developments (Swaffham) Ltd | Construction | 2025 |
| WSC Enterprises Limited | Real estate | 2013 |
| WSR Property Limited | Real estate | 2016 |
| WSS Welding Site Services Ltd | Construction | 2008 |
| WT Design and Construction Ltd | Construction | 2021 |
| WTF Wear Ltd | Wholesale & retail | 2025 |
| WTG Consult Limited | Health & social care | 2019 |