EY-Parthenon is the global strategy consulting arm of Ernst & Young (EY), one of the Big Four professional services networks. Formed in 2014 through the combination of EY and The Parthenon Group, a strategy consulting firm founded in 1991, EY-Parthenon brings together strategy advisory capabilities with EY's broader global platform. The firm advises corporate and private equity clients on growth strategy, transaction strategy, portfolio optimization, and enterprise transformation initiatives.