Hannes Seifert is an Austrian video game producer and composer. He co-founded neo Software in 1993, which became Rockstar Vienna in 2003, where he served as CEO for production and as an executive producer for 13 years. In 2006 he co-founded Games That Matter, which became Deep Silver Vienna, where he served as CEO and an executive producer. In 2010, he joined Square Enix as a production director at IO Interactive, serving as the studio head for 4 years until the company's split from Square Enix. In 2017, he joined Riot Games as the Country Manager for Central Europe.