| Whiteford House Limited | Health & social care | 2021 |
| Whitehill Battery Storage Limited | Construction | 2021 |
| WHY Settle Holdings Ltd | Information & communication | 2021 |
| Wick Care Ltd | Health & social care | 2024 |
| Wielunski Transport Ltd | Transport & logistics | 2025 |
| Wilkie Bardykes Ltd | Professional & scientific | 2017 |
| Wilkies Limited | Wholesale & retail | 2024 |
| William Duncan (UK) Limited | Professional & scientific | 2014 |
| William Jamieson & SON Limited | | 1960 |
| William Montgomery & Sons Limited | Construction | 2008 |
| William Shaw Property Ltd | Real estate | 2024 |
| Willis Haven Limited | Wholesale & retail | 2025 |
| Wilmotts Kitchens & Bedrooms Limited | Construction | 1998 |
| Wilson Developments (EK) Ltd | Construction | 2025 |
| Wilson Developments (Ferniegair) Ltd | Construction | 2019 |
| Wilson Developments (Orrs) Ltd | Construction | 2020 |
| Wilson Developments (Property Services) Limited | Construction | 2012 |
| Wilson Developments (Scotland) Ltd | Construction | 2012 |
| Wilson Property (Scotland) Limited | Construction | 2012 |
| Winchester Global Trust Company Limited | | 2023 |
| Windows 4U (Scotland) Holdings Ltd | Financial services | 2024 |
| Wineconnect Limited | Wholesale & retail | 2025 |
| Winnie and Mini Ltd | Hospitality | 2025 |
| Wire in Electrical Contractors Ltd | Construction | 2022 |
| Wisefex Investment Limited | Real estate | 2022 |
| Wiseman Associates Limited | Professional & scientific | 2013 |
| Wiseman Stationery Supplies Ltd. | Wholesale & retail | 2003 |
| Wiseway BUS & Coach Sales Ltd | Wholesale & retail | 2019 |
| Wishaw Chiropractic Associates Ltd | Health & social care | 2014 |
| Within Reach Ltd | Professional & scientific | 2021 |
| Wizards Diamond CUT Ltd | Other services | 2018 |
| WJB Safe Access Limited | Construction | 2018 |
| WKB Interiors Limited | Construction | 2021 |
| Wmcg PUB Group Ltd | Hospitality | 2017 |
| WMD Hamilton Ltd | Professional & scientific | 2019 |
| WN Consultants Limited | Professional & scientific | 2022 |
| Wokman Ltd | Hospitality | 2026 |
| Women’S Health and Wellness Ltd | Other services | 2025 |
| Wonder Digital Services Ltd | Administrative & support | 2026 |
| Woodborough Retail Stores Ltd | Wholesale & retail | 2020 |
| Woodcock Faulds Battery Storage Limited | Construction | 2022 |
| Woodcocks Flooring Limited | Wholesale & retail | 2016 |
| Woodend Estates (Scotland) Ltd | Water & waste | 2024 |
| Woodend Motors Ltd | Wholesale & retail | 2025 |
| Wooders Ltd | Hospitality | 2025 |
| Woodland Properties (Scotland) Limited | Households | 2023 |
| Woodlogs Scotland Limited | Administrative & support | 2011 |
| Woodside Wealth Ltd | Financial services | 2023 |
| Woodstarr Ltd | Wholesale & retail | 2021 |
| Woodward Mechanical Ltd | Construction | 2022 |
| Word Maker Limited | Wholesale & retail | 2011 |
| World of Rugs Ltd | Wholesale & retail | 2023 |
| Wossobama Gym Limited | Arts & recreation | 2007 |
| Wrightspec Limited | Professional & scientific | 2019 |
| Wtrw Altair Limited | Professional & scientific | 2025 |
| WTW Bermuda Holdings Ltd. | | 2015 |
| WTW Williamson Limited | Professional & scientific | 2014 |
| Wynne Associates Limited | Hospitality | 2012 |
| Wynne Wynne Ltd | Professional & scientific | 2025 |
| Wynne Wynne Scotland Limited | Professional & scientific | 2022 |
| Wynne Wynne Situations Limited | Professional & scientific | 2022 |
| Wynne Wynne Solutions Limited | Professional & scientific | 2018 |
| Xerox XHB Limited | | 1998 |
| XL Bermuda Ltd | | 1995 |
| Yazoo Properties Limited | Professional & scientific | 2012 |
| Yazootopia Limited | Real estate | 2017 |
| Yellow 42 Limited | Administrative & support | 2020 |
| Yellow 42 Recruitment Ltd | Extraterritorial | 2025 |
| YGM Ltd | Real estate | 2022 |
| YKS Properties Limited | Real estate | 2020 |
| Yksportsx Limited | Arts & recreation | 2019 |
| YLL Hamilton Ltd | Hospitality | 2025 |
| YOU YOU Ltd | Real estate | 2021 |
| You'Ve Been Framed Ltd | Wholesale & retail | 2025 |
| Young John Developments Limited | Construction | 2019 |
| Young's Concept Cleaning Services Ltd | Administrative & support | 2017 |
| Youngs Cleaning Services Ltd | Administrative & support | 2011 |
| Youngs Independent Funeral Services Ltd | Other services | 2018 |
| Your Local Window Cleaner (Scotland) Ltd | Other services | 2018 |
| Youth Capital Ltd | Professional & scientific | 2012 |
| Youth Media (Holdings) Limited | Professional & scientific | 2009 |
| Youth Media (UK) Limited | Professional & scientific | 1998 |
| YT Fast Food Ltd | Hospitality | 2025 |
| Zaarali Limited | Other services | 2017 |
| Zaffran Vintage Ltd | Wholesale & retail | 2020 |
| Zagros BBQ Ltd | Manufacturing | 2026 |
| Zarah's Properties Ltd | Real estate | 2017 |
| Zavala Ltd | Other services | 2019 |
| Zavvy Living Ltd | Real estate | 2018 |
| ZED Cars Cambuslang Limited | Transport & logistics | 2015 |
| ZED Cars Properties Limited | Real estate | 2025 |
| Zedsear Ltd | Professional & scientific | 2021 |
| ZEE Shopping Ltd | Wholesale & retail | 2025 |
| Zeezeez Ltd | Wholesale & retail | 2024 |
| ZEN Kitty Limited | Hospitality | 2014 |
| Zenhance Limited | Health & social care | 2015 |
| Zeste Beauty Limited | Other services | 2018 |
| ZEZ Convenience Store Ltd | Wholesale & retail | 2020 |
| ZH Haven Ltd | Wholesale & retail | 2025 |
| ZLS Home Improvements Ltd | Construction | 2018 |