| West Hallam Fryer Ltd | Hospitality | 2016 |
| West Hallam Medical Ltd | Health & social care | 2019 |
| Westbridge Recruitment Limited | Administrative & support | 2020 |
| Westerley Limited | Administrative & support | 2003 |
| Westport Derby Limited | Financial services | 2020 |
| WFP Fabrications Ltd | Manufacturing | 2006 |
| WFT Logistics Ltd | Transport & logistics | 2021 |
| Whitaker Property Solutions Limited | Real estate | 2024 |
| White Data Cabling Solutions Ltd | Information & communication | 2017 |
| Whyte Estates Limited | Households | 2021 |
| Whytemac Limited | Construction | 2017 |
| Wibberley & COX Inns Limited | Hospitality | 2010 |
| Wibsey Bookkeeping Services Ltd | Professional & scientific | 2022 |
| WIG Inc Ltd | Real estate | 2025 |
| Wild Bears Forest School CIC | Education | 2021 |
| Wild Feet Ltd | Wholesale & retail | 2024 |
| Wildersley Retreats Ltd | Hospitality | 2020 |
| Wildram Ltd | Manufacturing | 2025 |
| William James Developments (Midlands) Ltd | Real estate | 2021 |
| William James Holdings (Nottingham) Ltd | Financial services | 2023 |
| William West & Sons (Ilkeston) Limited | Transport & logistics | 1996 |
| Willows Catering Ltd | Hospitality | 2022 |
| Wilson’S Reseller Ltd | Wholesale & retail | 2024 |
| Windmill Builders Limited | Construction | 2003 |
| Windmill Farm ILK Ltd. | Construction | 1981 |
| Winfield & Co Data Ltd | Information & communication | 2026 |
| Winster Building Products Limited | Wholesale & retail | 2003 |
| WJH Property and Investment Ltd | Real estate | 2013 |
| WKM Accountancy Services Limited | Professional & scientific | 2010 |
| WLR Legal Solutions Ltd | Professional & scientific | 2022 |
| WOK & Go Ltd | Hospitality | 2026 |
| Wonder Worktops Ltd | Construction | 2026 |
| Wood-Floor Inspirations Limited | Construction | 2004 |
| Woodpecker Property Development Ltd | Real estate | 2024 |
| Woods MOT Centre Ltd | Wholesale & retail | 2022 |
| Woolley's Recycling Limited | Water & waste | 2006 |
| Wrap&Dip Mods Limited | Other services | 2016 |
| Wrapcraft Ltd | Wholesale & retail | 2025 |
| Wrapped Packaging Solutions Limited | Professional & scientific | 2018 |
| WRC Networks Ltd | Information & communication | 2017 |
| Wrightway Roofing Contractors Ltd | Construction | 2023 |
| WSC Drinkery Ltd | Hospitality | 2021 |
| WWD Property Limited | Real estate | 2025 |
| Www.Artsandcraftfairs.Org Limited | Administrative & support | 2009 |
| Wyse Fit Ltd | Arts & recreation | 2015 |
| X Line Systems Ltd | Administrative & support | 2017 |
| Xcel Safety Group Ltd | Construction | 2025 |
| Xpert Joinery & Building Services Ltd | Construction | 2008 |
| Yannis Greece Ltd | Health & social care | 2024 |
| YE Olde HOG Roast Limited | Hospitality | 2006 |
| Yeomans, Harrison and Associates Ltd | Professional & scientific | 2014 |
| YF Autos Ltd | Wholesale & retail | 2025 |
| YL Sports Therapy Ltd | Health & social care | 2020 |
| Yong FU Ltd | Hospitality | 2025 |
| Yorkshire Care Housing Ltd | Real estate | 2021 |
| YOU Hairdressing Limited | Other services | 2017 |
| Younglooks Ltd | Other services | 2025 |
| Your Base Camp Limited | Professional & scientific | 2023 |
| Your Brand Here Limited | Wholesale & retail | 2024 |
| Your Mortgage Lady Limited | Financial services | 2014 |
| Yours Building and Maintainence Ltd | Construction | 2026 |
| Ysolo Limited | Wholesale & retail | 2017 |
| Yuantian Limited | Hospitality | 2020 |
| Z Z C Building Ltd | Construction | 2023 |
| Zeal Marketing Ltd | Professional & scientific | 2025 |
| Zebra Music Ltd | Wholesale & retail | 2023 |
| ZEN123 Limited | Water & waste | 2025 |
| ZEN456 Limited | Water & waste | 2025 |
| Zest Fitness Academy Ltd | Arts & recreation | 2021 |
| ZF Jumani Properties Ltd | Real estate | 2020 |
| ZIL Properties Ltd | Financial services | 2021 |