John Duff is oblige to sell his shares at the end of the 19th century, after the whisky crisis. It is John Grant (Glen Grant distillery) that helps. In the 1970s, Longmorn fusionned with The Glenlivet to create The Glenlivet Distillers Ltd. Longmorn is one of the rare distileries that have never stop producing. It is part of the "Heritage Collection".
The distillery is also known for its wide pot stills and for the quality of its malt.