By 2001 it had a 37% share of the core routers market, challenging Cisco's once-dominant market-share.[4][3] It grew to $4 billion in revenues by 2004 and $4.63 billion in 2014. Juniper appointed Kevin Johnson as CEO in 2008, Shaygan Kheradpir in 2013 and Rami Rahim in 2014.