| Weirsolutions 2024 Ltd | Information & communication | 2024 |
| Weiss Approval Inspection and Certification Limited | Professional & scientific | 2024 |
| Welding & Fabrication Solutions Limited | Construction | 2009 |
| Welld Ltd | Wholesale & retail | 2025 |
| Wester Bowhouse Holdings Ltd | Real estate | 2021 |
| WET Wall Installations Ltd | Construction | 2019 |
| Wheatfield Corporate Ltd | Professional & scientific | 2020 |
| Whinfell IT Ltd | Information & communication | 2022 |
| Whisky Barrels Direct Ltd | Administrative & support | 2010 |
| Whitekirk Consulting Ltd | Professional & scientific | 2024 |
| Wholesale Memorials Ltd | Wholesale & retail | 2026 |
| Wilf's Limited | Wholesale & retail | 1986 |
| William Morris Consultants Ltd | Construction | 2026 |
| Williams Solutions Ltd | Professional & scientific | 2023 |
| Williamscraig Holiday Cottages Ltd | Hospitality | 2011 |
| Wilson Allen Hair Salon Ltd | Other services | 2020 |
| Wind Renewable Services Ltd | Professional & scientific | 2020 |
| Windie Consulting & Services Ltd | Professional & scientific | 2024 |
| Wipeform Ltd | Manufacturing | 2024 |
| Wirgo Limited | Information & communication | 2022 |
| Wish Upon a Gleam Limited | Administrative & support | 2024 |
| Wkweot Limited | Extraterritorial | 2024 |
| WOW Desirable Gifts Ltd. | Wholesale & retail | 2013 |
| Xianfu 888 Ltd | Hospitality | 2025 |
| Xpand Finance Ltd | Information & communication | 2019 |
| XS Developments Scotland Ltd | Real estate | 2024 |
| XS Transport Limited | Transport & logistics | 2011 |
| XS Warehousing Ltd | Transport & logistics | 2016 |
| Xtreme Karting Ltd | Arts & recreation | 2003 |
| Yafang Ltd | Hospitality | 2025 |
| Yard-Dog Engineering Ltd | Professional & scientific | 2023 |
| Yarra FOX Ltd | Professional & scientific | 2018 |
| Yates Business Solutions Ltd. | Professional & scientific | 2006 |
| Your Space (Scotland) Limited | Health & social care | 2018 |
| Zakzuk Logistics Ltd | Transport & logistics | 2026 |
| Zebra Properties (Scotland) Ltd | Real estate | 2015 |
| Zzworkshops Ltd | Professional & scientific | 2025 |