Andreessen Horowitz (a16z) is a venture capital firm that invests in technology companies from seed through growth across consumer, enterprise, fintech, bio/health, AI, crypto, and games. The firm manages multiple funds and earns management fees and carried interest, and provides portfolio support through recruiting, go-to-market help, and expert networks. Founded in 2009 by Marc Andreessen and Ben Horowitz, it is privately held and headquartered in Menlo Park, California.