About This Fund
AH American Dynamism Fund I is a $600 million venture capital fund managed by Andreessen Horowitz (a16z), one of Silicon Valley's most prominent technology investment firms. Raised in 2023, the fund was built around a16z's American Dynamism investment practice — a dedicated initiative supporting founders and companies that serve the U.S. national interest, focusing on sectors including aerospace and defense, manufacturing, robotics, supply chain resilience, public safety, education, and housing.
The fund reflects a strategic conviction by Andreessen Horowitz that the most consequential and defensible technology companies of the coming decade will be those building for government agencies, defense departments, and critical national infrastructure. Led by managing partners Katherine Boyle, David Ulevitch, and Erin Price-Wright, the fund applies the full resources of the a16z platform to portfolio companies — encompassing policy navigation, government-affairs capabilities, regulatory expertise, talent networks, and deep sector knowledge. The portfolio spans a range of stages from early venture to growth, reflecting the multi-stage mandate that characterizes a16z's fund strategies.
AH American Dynamism Fund I had deployed capital into 42 investments as of 2025, with notable portfolio companies including Hadrian, a defense manufacturing startup focused on precision components for the aerospace sector, and Castelion, a hypersonic long-range rocket developer. In 2024, a16z raised a second American Dynamism fund at $1.18 billion, signaling continued momentum in the defense and industrial technology sectors.