| WE ARE Barebones Ltd | Manufacturing | 2017 |
| WE Cutbar Ltd | Other services | 2025 |
| WE Make Progress Ltd | Professional & scientific | 2023 |
| Weathershield Roofing & Guttering Ltd | Construction | 2026 |
| Web and Flow Limited | Professional & scientific | 2023 |
| Web Studios Limited | Professional & scientific | 2005 |
| Wefco (Gainsborough) Limited | Manufacturing | 2005 |
| Weise Tiling Limited | Construction | 2009 |
| Wellett Properties Ltd | Real estate | 2025 |
| West Stockwith Yacht Club Property Limited | Administrative & support | 2017 |
| Westdale Technical Services Ltd | Professional & scientific | 2025 |
| Westnik (Developments) Limited | Construction | 2014 |
| Weston Power Evolution Limited | Manufacturing | 2015 |
| Wheels in Motion Gainsborough Ltd | Manufacturing | 2022 |
| Whippsy's Wonders Ltd | Hospitality | 2025 |
| Whisby Road Garage Ltd | Wholesale & retail | 2016 |
| White Hart Blyton Lincs Ltd | Other services | 2025 |
| White Hart Holistics Ltd | Education | 2024 |
| White Hart Hotel Gainsborough Ltd | Hospitality | 2024 |
| White Wabbit Retail Ltd | Wholesale & retail | 2020 |
| Whitegold Consulting Ltd | Professional & scientific | 2005 |
| Whitegold Enterprises Ltd | Wholesale & retail | 2025 |
| Whotton Couriers Limited | Transport & logistics | 2020 |
| Whotton Property Investments Limited | Real estate | 2024 |
| Wicked Event Water Services Ltd | Water & waste | 2011 |
| Widdowson HV Services Ltd | Construction | 2026 |
| Wiggly WOO Childcare Ltd | Health & social care | 2025 |
| Wiles Away Travel Ltd | Administrative & support | 2026 |
| Wilkinson Site Services Ltd | Professional & scientific | 2019 |
| Williams Electrical Designs & Installations Limited | Manufacturing | 2008 |
| Williamson Judo Ltd | Arts & recreation | 2026 |
| Willowbeck Ltd | Professional & scientific | 2012 |
| Wimtech IT Services Ltd | Information & communication | 2022 |
| WIN Squash Coaching Ltd | Other services | 2017 |
| Windy Corner Building and Construction Ltd | Construction | 2011 |
| Winers Investment Ltd | Real estate | 2011 |
| Winter Site Services Ltd | Transport & logistics | 2007 |
| Wireside Ltd | Information & communication | 2018 |
| Wizdom Enterprizes Ltd | Wholesale & retail | 2025 |
| Wldc Staffing Services Ltd | Public administration | 2016 |
| Wldc Trading Ltd | Public administration | 2017 |
| Woehner (U.K.) Limited | Manufacturing | 1995 |
| Woodland Chase Gainsborough Management Company Ltd | Households | 2013 |
| WOW Aluminium Ltd | Construction | 2014 |
| WOW Aluminium Systems Ltd | Manufacturing | 2022 |
| WOW Garden Rooms Ltd | Manufacturing | 2022 |
| WOW SIP Panels Ltd | Manufacturing | 2022 |
| Wright Protection Ltd | Administrative & support | 2025 |
| WS Catenary Solutions Ltd | Construction | 2015 |
| WWF Properties Ltd | Real estate | 2025 |
| X Purge Limited | Extraterritorial | 2010 |
| XIN Miao Food Ltd | Hospitality | 2025 |
| Xpower Racing Ltd | Wholesale & retail | 2022 |
| Yamorite Ltd. | Manufacturing | 2019 |
| YES I KEN Ltd | Other services | 2021 |
| You-Count Accountancy Ltd | Professional & scientific | 2017 |
| Your Home Away Ltd | Real estate | 2018 |
| Your MRH Development Ltd | Construction | 2019 |
| Your Small Space Ltd | Other services | 2022 |
| YRL Ltd | Administrative & support | 2025 |
| Z & F Interiors Limited | Construction | 2014 |
| Z-Tek Ltd | Information & communication | 2008 |
| Zaccaria Glass 2020 Ltd | Construction | 2020 |
| Zalimsin Foods Ltd | Hospitality | 2025 |
| ZEN Hair Design Limited | Other services | 2004 |
| Zent Limited | Wholesale & retail | 2020 |
| Zentech Solutions Ltd | Information & communication | 2025 |
| Zippykat Limited | Hospitality | 2019 |
| ZKL Group Ltd | Financial services | 2024 |
| Zubik Enterprises Limited | Other services | 2019 |
| Zwickysoft Limited | Extraterritorial | 2006 |