X Development

X Development LLC
	Logo since 2016
Trade name	X
Formerly	Google X (2010–2015)
Company type	Division
Industry	Research and development
Founded	January 2010
Founders	Sebastian Thrun; Yoky Matsuoka;
Headquarters	Mountain View, California, United States
Key people	Astro Teller (CEO)
Products	Artificial intelligence; Computational neuroscience; Health care; Biotechnology;
Parent	Google (2010–2015; 2022–present); Alphabet (2015–2022);
Subsidiaries	Subsidiaries SCHAFT; Industrial Perception; Redwood Robotics; Meka Robotics; Holomni; Bot & Dolly; Autofuss; Jetpac; Gecko Design; Flutter; DNNresearch;
Website	x.company

X Development LLC, doing business as X (formerly Google X), is an American semi-secret research and development facility and organization founded by Google in January 2010. X has its headquarters about a mile and a half from Google's corporate headquarters, the Googleplex, in Mountain View, California.

X's mission is to invent and launch "moonshot" technologies that aim to make the world a radically better place. A moonshot is defined by X as the intersection of a big problem, a radical solution, and breakthrough technology. Work at X is overseen by entrepreneur scientist Astro Teller, as CEO and "Captain of Moonshots". The lab started with the development of Google's self-driving car.