ESET, IBM, F-Secure, Microsoft and Check Point Technologies round out the market share leaders for global corporate endpoint protection. ESET, with global headquarters in Bratislava, Slovakia, is established in Eastern Europe and analysts say it has been making gains in the U.S. with adoption by small and midsize businesses. IBM's core adopters are large businesses and added to its market share through the acquisition of Israeli antifraud and endpoint security vendor Trusteer. The purchase price was estimated to be $1 billion. IBM also acquired Fiberlink in 2013 for mobile device management.