Andreessen Horowitz is a venture capital firm that invests in seed to late-stage technology companies. The firm was founded in 2009 by Marc Andreessen and Ben Horowitz. The firm has offices in Menlo Park, California, and New York City. Andreessen Horowitz has invested in over 500 companies, including Airbnb, Coinbase, Facebook, Lyft, and Slack. The firm has over $16.5 billion in assets under management.