I help leaders move forward with confidence by translating emerging technology and geopolitical complexity into secure, scalable strategies that drive growth and mission impact.

Jay Tamsett

Managing Director, Aerospace, Defense & Mobility, Ernst & Young LLP

Market leader in aerospace and defense. Growth and transformation strategist. Trusted C suite advisor.

Jay is a managing director in the Aerospace, Defense and Mobility practice, advising senior executives at global aerospace and defense enterprises on growth, transformation and mission-critical strategy at the intersection of commercial innovation and defense imperatives.

He brings a distinctive tri-sector background spanning Silicon Valley entrepreneurship, the US intelligence community, and strategy and business development roles across leading US defense firms. This experience enables Jay to help clients translate emerging technologies and operating models into scalable, secure and commercially viable outcomes in highly regulated environments.

He holds an MS and MBA from the University of Colorado and an MA from the University of Denver. 

How Jay is shaping the future with confidence

“I shape the future with confidence by helping leaders bridge commercial innovation and national security imperatives in a rapidly evolving global environment. Drawing on experience across entrepreneurship, intelligence and corporate strategy, I work with executives to translate emerging technologies, geopolitical risk and new operating models into outcomes that are scalable, secure and mission‑ready. My focus is on enabling organizations to move faster without compromising trust — building strategies that support growth, resilience and long‑term value for clients, people and society. By combining founder‑level agility with disciplined execution, I help leaders make informed decisions with confidence.”

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