General John G. Castellaw


Lieutenant General John G. Castellaw is a recognized national security expert and agricultural technology entrepreneur. Castellaw is Chief Executive Officer of Farmspace Systems LLC, a drone-based precision agriculture data collection company he co-founded following a 36-year career in U.S. Marine Corps aviation. Castellaw, who concluded his military career as Deputy Commandant for Programs and Resources at the Pentagon, participated in a range of humanitarian operations in Africa, Asia, and Europe, including serving with the United Nations during the siege of Sarajevo and commanding the U.S. force in a multinational security and stability operation in East Timor.

Castellaw serves on the U.S. Global Leadership Coalition’s National Security Advisory Council, and works with a number of other Washington, D.C.-based security organizations, including the Nuclear Security Working Group, the American Security Project, and the Climate Security Working Group. He also serves as a consultant on food insecurity’s impact on global security, recently testifying before a Senate Foreign Relations subcommittee.