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( Alphabetically ordered by last names )



Executive Vice Presidentfor Advanced Nuclear,
GE Hitachi Nuclear Energy

Mr. Sexstone is the Executive Vice President, Advanced Nuclear for GE Hitachi Nuclear Energy. In this role, he leads the development and project delivery of the advanced nuclear business. He’s responsible for furthering the design progress of the BWRX-300 and Natrium projects, supporting customers, meeting product cost targets to ensure market competitiveness and developing key partnerships for global SMR deployment.


Mr. Sexstone joined GEH February 2022 from Aecon, where he was responsible for leading Aecon’s nuclear group with a focus on life extension projects, plant life maintenance projects, decommissioning and nuclear fabrication. While at Aecon, he led large capital projects including the refurbishment at Bruce Power and at OPG’s Darlington Nuclear Generating Station. Prior to Aecon, he gained EPC execution experience with CB&I/McDermott as well as utility experience with Entergy, focusing on project management, supply chain and vendor oversight.


Mr. Sexstone started his career with GE and eventually worked with GEH in several roles, including running multiple regions as the Vice President of Sales. He has a Bachelor of Science degree in Industrial Engineering from West Virginia University, and a Master of Business Administration from Duke University, USA.

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