| West Lodge Developments Limited | Construction | 2017 |
| West Park House Limited | Health & social care | 2003 |
| Wheel Restore IT Ltd | Wholesale & retail | 2016 |
| Wheelen Property Co Ltd | Real estate | 2026 |
| Whipped Desserts Limited | Wholesale & retail | 2021 |
| Wild Hound Property Limited | Construction | 2023 |
| William Spittal & SON LLP | | 2023 |
| Wiltshire Circuit Crew Ltd | Construction | 2025 |
| Wind Energy Resources Limited | Professional & scientific | 2024 |
| Windsford Limited | Professional & scientific | 2004 |
| Windsor Bespoke Timber Manufacturing Ltd | Construction | 2018 |
| WINGS2 Limited | Hospitality | 2024 |
| WOK Inn (Glenrothes) Ltd | Hospitality | 2025 |
| Woodend Properties (Scotland) Limited | Real estate | 2017 |
| Woogles World Ltd | Arts & recreation | 2021 |
| WR FOX Steel Structures Limited | Construction | 2015 |
| WW Glendinning Haulage Contractors Ltd | Transport & logistics | 1996 |
| Wylie Electrical Services Ltd | Construction | 2014 |
| Wylie Wasp Ltd | Information & communication | 2022 |
| Xantex Resources Ltd | Administrative & support | 2024 |
| Xception Management Solutions Limited | Professional & scientific | 2009 |
| Xportus Sports Management Limited | Arts & recreation | 2020 |
| Xstreamtec Limited | Wholesale & retail | 2014 |
| Ymca Glenrothes | Administrative & support | 2005 |
| Young Computing Limited | Information & communication | 2007 |
| Young Property Maintenance Ltd | Administrative & support | 2025 |
| Ythanville Limited | Households | 2018 |
| YU Zheng Ltd | Hospitality | 2024 |
| Yukson Ltd | Hospitality | 2024 |
| ZEN4CARS Ltd | Wholesale & retail | 2025 |
| Zenith Plus International Ltd | Manufacturing | 2025 |
| Zhan Yang Ltd | Hospitality | 2023 |
| Zoocraft Limited | Professional & scientific | 2016 |
| ZSN Retail Ltd | Wholesale & retail | 2025 |