@AndreessenHorowitz

a16z Capital Management, L.L.C. (commonly known as Andreessen Horowitz, or a16z) is an American privately held venture capital firm, founded in 2009 by Marc Andreessen and Ben Horowitz and organized in Nevada. The company is headquartered in Menlo Park, California. As of July 2025, Andreessen Horowitz ranks first on the list of venture capital firms by assets under management, with $46 billion.