Hennessy Cognac has been named the number one performing global spirit for 2014, according to UK-based International Wine and Spirit Research (IWSR), just as the brand celebrates its 250th anniversary. In 2014, Hennessy surpassed all major spirit brands globally and is growing in popularity for the millennial consumer base. IWSR World Class Brand List ranks 142 brands on market volume, average price per case and volume growth over the previous year.