ironSource is an Israeli software company that focuses on developing technologies for app monetization and distribution, with its core products focused on the app economy. Among others, ironSource was chosen as one of the '20 hottest startups' in 2013 and was listed in the Wall Street Journal "Billion Dollar Startup Club". In September 2015, ironSource was named by the World Economic Forum as a Global Growth Company. ironSource has also been named one of the hottest pre-IPO tech companies by Business Insider, and one of Israel's most innovative companies by Fast Company.