Tullamore D.E.W.

Tullamore D.E.W. belongs to William Grant & Sons Limited through Tullamore Distillery Ltd. Tullamore D.E.W. is owned by William Grant & Sons Limited, headquartered in the United Kingdom. No. The ultimate owner of Tullamore D.E.W., William Grant & Sons Limited, is headquartered in the United Kingdom, not in the United States.

William Grant & Sons is a Scottish family-owned distillery company known for producing a range of spirits, including Glenfiddich Scotch whisky and Hendrick's Gin. They acquired Tullamore D.E.W. in 2010 and built a new distillery in Tullamore, Ireland, which began production in 2014.