| Wonderbean Ltd | Professional & scientific | 2021 |
| Wong's Kitchen Limited | Hospitality | 2018 |
| Wood N Willow Limited | Manufacturing | 2025 |
| Wood's Family Butchers Ltd | Wholesale & retail | 2019 |
| Woodbine Care Services Limited | Health & social care | 2022 |
| Woodburner Educational Programme Limited | Professional & scientific | 2026 |
| Woodchester Enterprises Limited | Manufacturing | 1999 |
| Woodchester Garage Management Company Limited | Households | 2017 |
| Woodchester International Ltd | Wholesale & retail | 2017 |
| Woodcock Decorators Ltd | Construction | 2023 |
| Woodcock Trading Estate Limited | Real estate | 1999 |
| Woodfield Builders and SON Limited | Construction | 2019 |
| Woodfield Evolution Ltd | Agriculture & fishing | 2025 |
| Woodgate Sawmills Limited | Manufacturing | 1985 |
| Woodland Biochar Ltd | Agriculture & fishing | 2022 |
| Woodrow Way Garage Ltd | Wholesale & retail | 2024 |
| Woodside Bloodstock Limited | Agriculture & fishing | 2015 |
| Woodside Packaging Limited | Professional & scientific | 1998 |
| Woodside Wipes Ltd | Extraterritorial | 2008 |
| Woolridge CH Ltd | Real estate | 2024 |
| Woolridge Ltd | Real estate | 2023 |
| Worcester Search & Scent Dogs Limited | Other services | 2021 |
| Worcestershire County Golf Limited | Arts & recreation | 2020 |
| Worcestershire Local Medical Committee Limited | Health & social care | 2007 |
| Wordif Ltd | Information & communication | 2026 |
| Wordingham Assets Limited | Administrative & support | 2004 |
| Wordsearch Limited | Professional & scientific | 2011 |
| Work Refresh Ltd | Administrative & support | 2023 |
| Workforce Healthcare Ltd. | Administrative & support | 2017 |
| Workit Crossfit Ltd | Health & social care | 2024 |
| Workwithmark Ltd | Professional & scientific | 2023 |
| World Performance Dressage Ltd | Agriculture & fishing | 2026 |
| World Web Channels Limited | Information & communication | 2020 |
| Worldnetwork Limited | Construction | 2009 |
| Wornpack Limited | Professional & scientific | 1967 |
| Wotton Hall Social Club Ltd | Hospitality | 2014 |
| Wotton Nursing Homes (Holdings) Limited | Extraterritorial | 2011 |
| Wotton Rise Nursing Home Limited | Health & social care | 2005 |
| WOW Flavours Limited | Hospitality | 2024 |
| WOW Shelving Limited | Wholesale & retail | 2022 |
| Wowp Ltd | Information & communication | 2024 |
| WP Properties and Investments Ltd | Real estate | 2021 |
| Wpmad Ltd | Construction | 2017 |
| Wrench Customz Limited | Wholesale & retail | 2022 |
| Wrexham DAB Limited | Information & communication | 2021 |
| Wright Business Consultancy Ltd | Professional & scientific | 2019 |
| Wright Skips Limited | Water & waste | 2007 |
| Wrightway Trouble Shooting Limited | Real estate | 1993 |
| Writing on Water Limited | Information & communication | 2015 |
| WSJ Holdings Limited | Financial services | 2017 |
| WT Couriers Ltd | Transport & logistics | 2017 |
| WW Swan Limited | Hospitality | 2023 |
| Wyer Properties LLP | | 2024 |
| Wyndham-Wade Design and Build Ltd | Administrative & support | 2017 |
| Wynn Homes Limited | Construction | 2000 |
| Wynn Roofing Ltd | Construction | 2025 |
| Wynne-Jones IP Limited | Professional & scientific | 2017 |
| X Board Ltd | Information & communication | 2025 |
| X Cyber Group Ltd | Information & communication | 2016 |
| X Fibre Ltd | Construction | 2021 |
| X-Learning Limited | Administrative & support | 2002 |
| X11X Limited | Professional & scientific | 2012 |
| X44 1 Ltd | Information & communication | 2024 |
| X44 X Ltd | Construction | 2023 |
| Xcelsia Limited | Information & communication | 2016 |
| Xchangers Cheltenham Limited | Real estate | 2022 |
| Xcyber Ltd | Extraterritorial | 2018 |
| Xeko Group Ltd | Real estate | 2024 |
| Xeni Marketing Ltd | Professional & scientific | 2025 |
| Xenova Systems Ltd | Information & communication | 2025 |
| Xerlife Ltd | Information & communication | 2019 |
| Xspace Structured Cabling Products Limited | Manufacturing | 2010 |
| XSW Cyber Ltd | Information & communication | 2017 |
| XSW Media Ltd | Information & communication | 2019 |
| Xtra Space Construction Ltd | Construction | 2026 |
| Xtreme Precision Engineering Ltd | Manufacturing | 2010 |
| Xuvis Limited | Professional & scientific | 2023 |
| Xview Limited | Information & communication | 2020 |
| Xylo Hospitality Ltd | Hospitality | 2026 |
| Xynera Technologies Limited | Administrative & support | 2011 |
| Xyvo Ltd | Professional & scientific | 2025 |
| Y Cantreff Ltd | Hospitality | 2023 |
| Yahweh Care Services Ltd | Health & social care | 2025 |
| Yaline Logistics Ltd | Transport & logistics | 2024 |
| YAN Sushi Limited | Hospitality | 2024 |
| Yano CHA Bradford Ltd | Hospitality | 2025 |
| Yanosik Limited | Wholesale & retail | 2024 |
| Yaqui Consulting Ltd | Professional & scientific | 2024 |
| Yarnwick Nook Ltd | Arts & recreation | 2026 |
| Yarrow Trading Ltd | Wholesale & retail | 2023 |
| Yaru Ltd | Transport & logistics | 2021 |
| Yass Clean Ltd | Wholesale & retail | 2024 |
| Yazulaa Ltd | Health & social care | 2017 |
| YB Tracking Ltd | Extraterritorial | 2009 |
| YE Olde Restaurant Ltd | Hospitality | 2025 |
| Yeah G Ltd | Professional & scientific | 2026 |
| YEAR56.COM Ltd | Professional & scientific | 2022 |
| Yeates Garage (Cheltenham) Limited | Real estate | 1963 |
| Yellow Red Catering Ltd | Hospitality | 2025 |
| Yellow Spaniel Limited | Information & communication | 2022 |