Whisky brand, The Famous Grouse, has had its Royal Warrant extended until 2013.
The five-year extension will allow it to continue displaying the royal coat of arms together with the words "By Appointment" on its bottles.
Gerry O'Donnell, director of The Famous Grouse, said: "The Royal Warrant is the most prestigious honour any UK business can receive."
There are around 800 individuals and companies, from florists to computer suppliers with a royal warrant, which is awarded for a five-year period but can be revoked at any time.
The Famous Grouse produced more than 30 million bottles in 2007 and is the 11th largest whisky brand in the world.