Justerini & Brooks (commonly known as just J & B) is a scotch blended whisky. The company is owned by multinational Diageo plc.
J&B Rare Blend, the standard J&B whisky brand, is a blend of 42 Scottish malt and grain whiskies.
Furthermore, J&B's portfolio includes:
J&B Reserve 15-year old,
Jet 12-year old and Exception (a pure malt limited to France)
J&B Select and Ultima were discontinued.
It is aimed mainly for the export market, and is available in a few different variants in Europe, America and Korea among other places. The company, originally Johnson & Justerini was founded in 1749 in London, delivering fine wine and spirits to various up-scale aristocratic households, as well as supplying King George III. In 1910, Johnson & Justerini was bought by Alfred Brooks and renamed Justerini & Brooks.
"Taken from Wikipedia"