Nice Systems

Inside an app, nobody can hear you scream—except the Israeli-based firm Nice Systems, whose customer-service solutions are used by 25,000 companies in more than 150 countries. Last year, it rolled out Mobile Reach, software that works in the background of banking, retail, and other apps and jumps in to help a user the minute she's frustrated. "Enterprises no longer simply pay lip service to customer service," says Nice's director of solutions marketing, Tamar Sharir.