| Whittaker Marine and Construction Limited | Administrative & support | 2015 |
| WHY Human Factors Limited | Professional & scientific | 2024 |
| Whytes Coaches Limited | Transport & logistics | 2007 |
| Wide Vista Ltd | Hospitality | 2016 |
| Wife.Com Limited | Administrative & support | 2001 |
| Wilbur POS Services Ltd | Construction | 2025 |
| Wilbur Property Limited | Real estate | 2018 |
| Wild Cherub Ltd | Manufacturing | 2026 |
| Wild Hearts Elopements Limited | Other services | 2019 |
| Wildbuilt Ltd | Information & communication | 2025 |
| Wildneep Limited | Administrative & support | 2021 |
| Wilds Property Holdings Limited | Real estate | 2026 |
| Wildscot Gamedealer Limited | Manufacturing | 2024 |
| Wilkie Accountants Ltd | Professional & scientific | 2023 |
| Will Farquhar Electrical Services Ltd | Construction | 2013 |
| Will Wealth Management Ltd | Financial services | 2017 |
| Willemstad LP | | 2013 |
| William Anderson Cars Ltd | Transport & logistics | 2011 |
| William LOW Project Control Services Limited | Professional & scientific | 2010 |
| William Mann and Aberdeen City Council | | 1999 |
| William Milne Tarpaulins Scotland Limited | Manufacturing | 2009 |
| William Nicol (Aberdeen) Limited | Transport & logistics | 1985 |
| William Pomphrey Painters & Decorators Limited | Administrative & support | 2003 |
| William RAE (Aberdeen) Limited | Construction | 2005 |
| William Walker Transport Limited | Transport & logistics | 2001 |
| William Wilson Holdings Limited | Construction | 1973 |
| William Wilson Ltd. | Wholesale & retail | 1927 |
| William Wilson Wealth Management Limited | Financial services | 2020 |
| William Young (Antiques) Limited | Real estate | 1962 |
| Williams Plumbing and Maintenance Ltd | Other services | 2022 |
| Williamsons Kitchens Limited | Construction | 2012 |
| Williamston Estates Limited | Agriculture & fishing | 1963 |
| Willox Entertainment Ltd | Hospitality | 2021 |
| Wils & Steve International Ltd | Wholesale & retail | 2024 |
| Wilsden Ltd | Construction | 2025 |
| Wilson Heating Limited | Construction | 2016 |
| Wilson Heating Renewables Limited | Construction | 2020 |
| Wilson's Investment Group Limited | Real estate | 2025 |
| Wilson’S Design Ltd | Professional & scientific | 2022 |
| Wilton Ecosse Ltd | Wholesale & retail | 2019 |
| Wilton Ecosse Property Ltd | Real estate | 2026 |
| Wimspec Limited | Professional & scientific | 2013 |
| Winark-Grace Services Ltd | Manufacturing | 2025 |
| Winchesters Lettings Limited | Real estate | 2017 |
| Winchesters Properties Limited | Real estate | 2024 |
| Windmill (Holdings) Ltd | Financial services | 2014 |
| Windmill Printing Ltd | Manufacturing | 2014 |
| Wine Raks (Scotland) Limited | Wholesale & retail | 1989 |
| Wing District Limited | Hospitality | 2026 |
| Winland Trans LP | | 2013 |
| Winlux Cleaning Specialist Ltd | Administrative & support | 2013 |
| Winpen Ltd | Construction | 2024 |
| Winsen Property Leasing Limited | Real estate | 2011 |
| Winspire Global Ltd | Wholesale & retail | 2025 |
| Winter Radiology Limited | Health & social care | 2019 |
| Winwood International Limited | Administrative & support | 1999 |
| Wise Decor (Edin) Ltd | Construction | 2022 |
| Wise Guys (Kintore) Limited | Other services | 2024 |
| Wiseman Fishing Company Limited | Agriculture & fishing | 1995 |
| Wish ZM3 Ltd | Real estate | 2025 |
| Wizcov Group Ltd | Wholesale & retail | 2025 |
| Wizzdim IOT Ltd. | Information & communication | 2018 |
| Wizzdim Ltd | Information & communication | 2010 |
| WJJ Limited | Professional & scientific | 2026 |
| WJM Concepts Ltd | Professional & scientific | 2010 |
| WK Flooring Limited | Construction | 2026 |
| WKC Properties Limited | Construction | 2017 |
| WKE Ltd | Manufacturing | 2026 |
| WLB (Scotland) Ltd | Wholesale & retail | 2022 |
| WLL LLP | | 2013 |
| WM Ropes and Lifting Ltd | Construction | 2025 |
| WMA Commercial Ltd | Real estate | 2020 |
| WMA Properties Ltd | Real estate | 2020 |
| Wmenluxe Ltd | Other services | 2020 |
| Wmizwan Ltd | Construction | 2022 |
| WMJ Aberdeen Ltd | Construction | 2022 |
| Wolf and Thistle LLP | | 2025 |
| Woman for the World Ltd | Professional & scientific | 2019 |
| Wonder Wing Limited | Wholesale & retail | 2025 |
| Wonderconcepts Limited | Professional & scientific | 2026 |
| Wood & Davidson Limited | Professional & scientific | 1899 |
| Wood (Indonesia) Limited | Mining & quarrying | 2021 |
| Wood Floor Centre Limited | Other services | 1998 |
| Wood Group Algeria Limited | Professional & scientific | 2006 |
| Wood Group Algiers Limited | Professional & scientific | 2006 |
| Wood Group Annaba Limited | Professional & scientific | 2006 |
| Wood Group Arzew Limited | Professional & scientific | 2006 |
| Wood Group Engineering & Operations Support Limited | Financial services | 1995 |
| Wood Group Engineering (North Sea) Limited | Financial services | 1955 |
| Wood Group Hassi Messaoud Limited | Professional & scientific | 2006 |
| Wood Group Holdings (International) Limited | Financial services | 1996 |
| Wood Group Investments Limited | Financial services | 2006 |
| Wood Group Kenny Corporate Limited | Financial services | 1993 |
| Wood Group Limited | Professional & scientific | 2005 |
| Wood Group Power Investments Limited | Financial services | 2013 |
| Wood Group Production Services UK Limited | Mining & quarrying | 2005 |
| Wood Group UK Limited | Mining & quarrying | 2006 |
| Woodaven Estates Limited | Construction | 2018 |
| Woodcroft Design Services Limited | Professional & scientific | 2020 |
| Woodcroft Plumbing & Heating Ltd | Construction | 2015 |