The owner is the company that owns the whiskey brand. This may or may not be the same company that actually makes the whiskey.

Only three distilleries produce whiskey at the moment: Cooley, Midleton (operated by Irish Distillers) and Bushmills. To be called Irish whiskey, the spirit must have been distilled on the island of Ireland and thus must be the product of one or more of these distilleries. A very old whiskey might have been made at a distillery that has since closed, of course.

Alcohol By Volume (%). The percentage alcohol figures are those that apply in Ireland and the UK. A whiskey might be bottled at a different strength for sale in another jurisdiction. For example, whiskey must have a minimum strength of 43% to be sold in South Africa.