The origins of Tullamore D.E.W. date back to 1829, when a distillery was established in Tullamore by Michael Molloy. On his death, the distillery eventually passed to his nephew, Bernard Daly who later appointed Daniel E. Williams as the distillery’s General Manager. Under Williams’s watchful eye, the distillery expanded and prospered, launching the whiskey bearing his initials (D.E.W.).

Some time in the 1960’s the distillery was closed, production moved to Midleton in Cork, and the brand was sold to William Grant & Sons.

In 2014 Grant rebuilt the distillery at it’s original site.