Perimeter Partners

Joe Valdman is the Founder and Managing Partner of Slate Hill Partners, a private investment firm focused on complex and long-term opportunities across industrials, energy, and infrastructure. He is also the Co-Founder of NEOS, an ETF platform he helped grow to over $6 billion in assets under management. As CEO of Perimeter Acquisition Corporation I, Joe brings deep expertise in public markets, capital formation, and strategic investing in sectors critical to American industrial strength and national security.

Jordan Blashek is a national security-focused investor, operator, and former Marine infantry officer. As Executive Chairman of Perimeter, he leads the firm’s strategy to acquire and scale frontier technology companies vital to America’s industrial and defense future. He is also Co-Founder & Managing Partner of America’s Frontier Fund, an early-stage venture capital firm that invests in transformative technologies to strengthen America. Jordan has advised leaders across government, finance, and industry on building durable national advantage through innovation. Jordan has an MBA from Stanford Graduate School of Business, a JD from Yale Law School, and an AB from Princeton University.

Todd Lemkin is a seasoned public markets investor and former Chief Investment Officer of Canyon Partners, a $23 billion global investment firm. Over two decades at Canyon, he led investments across credit, special situations, and equity markets, with a focus on value creation in complex and cyclical industries. Todd brings deep expertise in capital allocation, corporate strategy, and public market dynamics—particularly in sectors critical to American industrial and strategic resilience.