Fortune evaluation of the TOP 11 'Unicorns'. They’re called “unicorns”—companies that have soared to a $1 billion valuation or higher, based on fundraising. See Fortune’s list of unicorn startups below, ranked by valuation. (Where there are ties, rankings are based on alphabetical order.) The list is based on a combination of data from PitchBook, CB Insights, news reports, and our own investigation.