Dumbarton

Dumbarton was a grain distillery located in the Lowland region after which it is named. It was built in 1938 by Hiram Walker & Sons in order to provide fillings for the Ballantine's blend which it had acquired two years prior. Its North American ownership saw it challenge some of the traditions of the Scotch industry, and it was notable for its use of stainless steel column stills instead of the Coffey style used elsewhere. The complex also housed the Inverleven malt distillery until 1991.

Only a single official bottling of Dumbarton single grain was ever release, a 1974 vintage bottled in the Allied Distillers era. The distillery was closed down by Allied Domecq in 2002 and is now mostly demolished.