| Wings Aviation Limited | Construction | 2023 |
| Winnies Support Limited | Health & social care | 2026 |
| Winnow and KIN Ltd | Wholesale & retail | 2025 |
| Winnwatts Investments Limited | Real estate | 2018 |
| Winsor Care Group Ltd | Health & social care | 2020 |
| Winsor City and Country Ltd | Real estate | 2022 |
| Winsor Investments Ltd | Financial services | 2020 |
| Winter Bull Productions Ltd | Information & communication | 2024 |
| Wireman Cloud Services Ltd | Information & communication | 2024 |
| WIS Associates Limited | Administrative & support | 1999 |
| WIS Property Limited | Real estate | 2020 |
| Wise Analytics Limited | Information & communication | 2013 |
| Wise OWL Hospitality Ltd | Hospitality | 2025 |
| Wiseguy Content Creation Ltd | Information & communication | 2021 |
| Wish Consultancy Ltd | Wholesale & retail | 2020 |
| Wislocki Films Ltd | Information & communication | 2015 |
| Wisp Media Limited | Information & communication | 2019 |
| With V Ltd | Education | 2022 |
| With YOU in Mind Counselling Limited | Health & social care | 2021 |
| Withdean Consulting Limited | Information & communication | 2025 |
| Withdean Personal Training Limited | Other services | 2018 |
| Wizaly UK Limited | Information & communication | 2023 |
| Wizard Clean Plus Limited | Administrative & support | 2018 |
| Wizard Methodologies Limited | Administrative & support | 2021 |
| Wizzo Films Ltd | Professional & scientific | 2012 |
| WJ Mitch Ltd | Information & communication | 2019 |
| WKP Flooring Limited | Construction | 2025 |
| WMC Legal LLP | | 2010 |
| Wolfwinkle Ltd | Wholesale & retail | 2021 |
| Wolsey Place Freehold Limited | Households | 2014 |
| Woman UP Limited | Professional & scientific | 2020 |
| Wonderpack Eco Limited | Transport & logistics | 2021 |
| Wondr Candy UK Limited | Manufacturing | 2026 |
| Wonuf Games Ltd | Information & communication | 2022 |
| Woodcock Service Station Limited | Wholesale & retail | 1999 |
| Woodford Trading Ltd | Financial services | 2018 |
| Woodland Leisure Ltd | Hospitality | 2021 |
| Woodland Properties Sussex Limited | Real estate | 2021 |
| Woodmancote Inns Limited | Hospitality | 2014 |
| Woodoco Ltd | Construction | 2017 |
| Woods and Woods Limited | Real estate | 2019 |
| Woods Heating Ltd | Energy | 2013 |
| Woods Holdings (Sussex) Limited | Professional & scientific | 2016 |
| Woods Legal Limited | Professional & scientific | 2026 |
| Woodside Freehold Limited | Households | 1994 |
| Woodstone Advisory Ltd | Professional & scientific | 2024 |
| WOODWARD05 LLP | | 2025 |
| Woody's Mobile Bar Limited | Hospitality | 2026 |
| Woolf Consultancy Ltd | Professional & scientific | 2024 |
| Work Design & Build Trading (Sussex) Limited | Manufacturing | 2026 |
| Workcraft Limited | Administrative & support | 2019 |
| Working at Heights Sussex Limited | Information & communication | 2015 |
| Workman Team Ltd | Administrative & support | 2002 |
| Workplace Wealth Management Limited | Professional & scientific | 2018 |
| Works in Public Ltd | Arts & recreation | 2022 |
| WORKSPACE11 Limited | Real estate | 2023 |
| World of Books Group Ltd | Wholesale & retail | 2010 |
| World of Rare Books Limited | Extraterritorial | 2010 |
| World SET Piece Championships Limited | Administrative & support | 2021 |
| World Trade Center (London) Limited | Extraterritorial | 2018 |
| Worth Events Limited | Administrative & support | 1997 |
| Worthing & Adur Chamber of Commerce & Industry Limited | Other services | 1938 |
| Worthing & District Harriers Athletic Club Ltd | Arts & recreation | 2025 |
| Worthing Accommodation Ltd | Hospitality | 2015 |
| Worthing Allotments and Gardens Association Ltd | Other services | 2016 |
| Worthing Allotments Management Community Interest Company | Other services | 2026 |
| Worthing and Adur Innovation Hub Community Interest Company | Administrative & support | 2015 |
| Worthing Arcade Limited | Real estate | 1967 |
| Worthing Barbers Ltd | Other services | 2021 |
| Worthing Cafe Ltd | Hospitality | 2023 |
| Worthing Catheter Services Ltd | Health & social care | 2025 |
| Worthing Cctv Limited | Information & communication | 2020 |
| Worthing Community Partnership | Other services | 2001 |
| Worthing Construction Ltd | Construction | 2021 |
| Worthing Counselling Ltd | Health & social care | 2018 |
| Worthing Creatives Gallery LLP | | 2023 |
| Worthing Developments Ltd | Administrative & support | 2017 |
| Worthing Electrical Limited | Construction | 2013 |
| Worthing Electrical Services Co. Ltd | Construction | 2004 |
| Worthing Festival C.I.C. | Arts & recreation | 2025 |
| Worthing Football Centre Ltd. | Arts & recreation | 2015 |
| Worthing Football Club Limited | Arts & recreation | 1992 |
| Worthing Footworks Ltd | Health & social care | 2025 |
| Worthing Freemasons'Hall Company Limited | Real estate | 1968 |
| Worthing FX Services Ltd | Financial services | 2017 |
| Worthing GIN Limited | Hospitality | 2019 |
| Worthing Golf Club Company,Limited(The) | Arts & recreation | 1921 |
| Worthing Gyros Ltd | Hospitality | 2023 |
| Worthing Health & Beauty Ltd | Other services | 2023 |
| Worthing High Street Food and Wine Ltd | Wholesale & retail | 2024 |
| Worthing Hockey Centre CIC | Arts & recreation | 2023 |
| Worthing Hockey Club Limited | Extraterritorial | 2019 |
| Worthing Home Care Limited | Health & social care | 2017 |
| Worthing Indoor Bowling Greens,Limited | Arts & recreation | 1933 |
| Worthing Kebab Ltd | Hospitality | 2016 |
| Worthing Learning Hub CIC | Education | 2024 |
| Worthing Lgbtqi+ Support Network Community Interest Company | Education | 2026 |
| Worthing Lions Charitable Trust Ltd. | Administrative & support | 2001 |
| Worthing Masonic Hall Limited | Real estate | 1932 |
| Worthing Minors Football Club CIC | Arts & recreation | 2023 |