Brian Grierson

Director of Fusion Energy Technologies

General Atomics

Brian Grierson serves as the Director of Fusion Energy Technologies at General Atomics, where he oversees Fusion Systems Integration, RF Systems, Diagnostics Development, and Engineering Research & Innovation within the Energy Group. In this role, he leads multidisciplinary teams advancing the critical technologies and integrated systems needed to support the development of practical fusion energy solutions and related applications.

Prior to joining General Atomics, Dr. Grierson spent more than a decade at the Princeton Plasma Physics Laboratory, where he held leadership positions including Division Head and Principal Research Physicist, contributing to domestic and international magnetic fusion energy research. He earned his Ph.D. in Applied Physics and Applied Mathematics with Distinction from Columbia University.

Dr. Grierson’s work focuses on advancing fusion energy through system integration, technology development, and the translation of scientific innovation into real-world energy applications.