Founders Fund is a San Francisco venture capital firm, co-founded by Peter Thiel, that invests across stages in technology and deep-tech companies including AI, defense, and space.

Hadrian builds AI-powered automated factories making precision parts for the Pentagon, Lockheed Martin, and Navy submarines, and raised a $1.37B Series D in August 2026 at a $7.87B valuation — up nearly 5x since January.