Andreessen Horowitz

Founded in 2009 by Marc Andreessen and Ben Horowitz, Andreessen Horowitz (a16z) quickly rose to become one of the most influential venture capital firms in Silicon Valley. The firm began with a $300 million fund and rapidly expanded its capital base, managing over $90 billion by 2026. It is known for a stage-agnostic investment approach, backing companies from seed stage through growth equity and public markets.

The firm is structured around specialized funds focusing on areas such as Bio + Health, Crypto, Gaming, and Consumer technology. A notable recent initiative is the American Dynamism fund, which invests in "hard tech" sectors that serve the national interest, including aerospace, defense, and manufacturing. This initiative reflects a broader strategic shift towards supporting the "Little Tech" ecosystem against established incumbents.

Beyond capital, a16z is recognized for its massive operating team that provides portfolio companies with support in marketing, recruiting, and business development. The firm has backed many of the defining technology companies of the last two decades, ranging from early social media giants to modern pioneers in artificial intelligence and space exploration.