Matthew Charles Mullenweg (born January 11, 1984) is an American entrepreneur and web developer living in Houston. He is known for developing the free and open-source web software WordPress, now managed by The WordPress Foundation. After dropping out of the University of Houston, he worked at CNET Networks from 2004 to 2006 until he quit and founded Automattic, an internet company whose brands include WordPress.com, Akismet, Gravatar, VaultPress, IntenseDebate, Crowdsignal, and Tumblr.