Andreessen Horowitz, commonly known as a16z, is a prominent venture capital firm that invests in technology companies across multiple sectors and stages. Founded in 2009 by Marc Andreessen and Ben Horowitz, the firm has grown to manage over $46 billion in committed capital. Their portfolio includes investments in AI, bio + healthcare, consumer, crypto, enterprise, fintech, games, infrastructure, and companies building toward American dynamism. The firm's investment strategy is stage-agnostic, participating in seed rounds as well as late-stage and growth financing. They have a history of aggressive investment, including early backing of AI leaders like Databricks and Elon Musk's xAI. In April 2025, a16z sought to raise a record $20 billion fund focused on growth-stage AI startups in the U.S., underscoring its ambition in catalyzing emerging tech leaders. Andreessen Horowitz is known for its commitment to supporting entrepreneurs through a comprehensive network of experts, including technical and executive talent, marketing and communications resources, and access to Fortune 500/Global 2000 companies. This network reflects a16z’s dedication to helping portfolio companies grow their businesses and navigate the challenges of company-building.