Christopher Isaac "Biz" Stone is an American entrepreneur known for co-founding Twitter. He currently serves as Co-founder and CEO of Jelly Industries, Inc., which he started in 2013. Stone's career in technology began with roles such as creative director at Xanga from 1999 to 2001, and a senior leadership position at Google from 2003 to 2005, where he worked on the Blogger team.
In 2006, Stone co-founded the social network Twitter, where he also held the patent for its invention.