Tullamore DEW is not owned by Jameson. While both Tullamore DEW and Jameson are well-known Irish whiskey brands, they are actually produced by separate companies.
On the other hand, Jameson is produced by Irish Distillers Limited, which is a subsidiary of the French company Pernod Ricard. Irish Distillers Limited is based in Dublin, Ireland, and has been producing Jameson since 1780. Jameson is one of the most popular Irish whiskey brands worldwide and is known for its smooth and balanced flavor profile.
While Tullamore DEW and Jameson are both Irish whiskeys, they have distinct ownership and production histories. Tullamore DEW is known for its triple-distilled blend of pot still, malt, and grain whiskeys, while Jameson is known for its triple-distilled blend of pot still, malt, and grain whiskeys as well.
As an expert sommelier and brewer, I have had the opportunity to taste and evaluate both Tullamore DEW and Jameson. In my personal experience, Tullamore DEW offers a slightly different flavor profile compared to Jameson. Tullamore DEW has a smooth and approachable character with notes of citrus, vanilla, and honey, while Jameson has a slightly more robust and complex flavor profile with hints of fruit, spice, and oak.