Discord
Founder Jason Citron and his team started their company, Hammer & Chisel in 2012. They were building Fates Forever, a new MOBA game for tablets, and were increasingly frustrated by the products they were using to chat while playing their favorite PC games. So in 2015 Jason and Stan Vishnevskiy launched Discord, a communications platform that helps friends come together around the games they love, and it saw immediate adoption and growth. Greylock partnered with Discord in 2016, and today the company has more than 56M monthly active users, with more than 1B messages sent each day.