Leadership Board

Our Board Members bring the best of our decades of global experience and strengths in operations, management, and safe production to guide Orano Federal Services through this next decade of opportunities.
Combined, they are a diverse group of thought leaders who bring expertise from the Departments of Energy and Defense, commercial nuclear/utility industry, and technology solutions provider – all of which are needed to guide the implementation of our strategic vision.
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Amir Vexler

Amir Vexler is the President and Chief Executive Officer of Orano USA—Orano’s operations in the United States providing commercial and federal customers with global expertise in nuclear materials management. Amir is also President of TN Americas, an Orano USA subsidiary. Mr. Vexler oversees all five of Orano's business units in the U.S., including MCE for sales of uranium fuel, conversion and enrichment services; Orano Decommissioning Services for decommissioning nuclear energy facilities through its joint venture with NorthStar, named Accelerated Decommissioning Partners; TN Americas offering the full breadth of spent nuclear fuel management (pool to pad, storage, transportation, and ISFSI management); Orano Med for the development of medical isotopes for targeted immunotherapy for fighting cancer; and Orano Federal Services offering the full complement of engineering and technology to solve some of the more complex nuclear material processing, conditioning and packaging for the DOE. With extensive international experience in the electric power industry, Amir’s career includes manufacturing, engineering services, commercial operations, and business development.
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Dorothy Davidson

Dorothy Davidson is the President and CEO of Orano Federal Services. She is an accomplished and innovative senior executive well known for her success in developing and implementing successful growth strategies in the U.S. nuclear energy industry. Dr. Davidson excels in working effectively with a diverse set of Government agencies, national laboratories, research universities, industry partners, and stakeholders on large, complex nuclear energy programs and projects at DOE operations and cleanup sites. She has skillfully led large organizations that develop and/or apply state-of-the-art nuclear science and technologies while adapting quickly to evolving industry, economic, and policy requirements and challenges. She establishes a positive, transparent working environment, sets clear goals, develops talented science and technology teams, and directs and continuously improves both company-wide and project-by-project performance.
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Ralph DiSibio

Ralph DiSibio has spent his entire career in the nuclear and construction industries, where he is known for his strategic insight, leadership skills, and innovation, as demonstrated in several senior executive and advisory positions. Dr. DiSibio currently serves as a Board Member for Jitsuin. Before that he was a member of the DOE Secretary’s Nuclear Energy Advisory Committee, CEO and Chairman of Kurion, Inc., and a board member of Quanta Services and Conti Construction. Prior to this, Dr. DiSibio was President of the Energy and Environment business unit for Westinghouse International Group (now operated by Amentum), where he managed all activities for some of the most complex facilities including Savannah River, Hanford, and WIPP among others. He previously served as President of Parsons Power and was Executive Vice President of the Westinghouse Hanford Company. Dr. DiSibio received a B.A. from Northern Colorado University, an M.A. in Educational Administration from Rowan University, and an Ed.D. from Western Colorado University. Dr. DiSibio attended the executive management program at Harvard and studied International Relations and Economics in Bologna, Italy at the Johns Hopkins International Institute. He is a patent holder in 'SurePak' a low-level waste container adapted by Westinghouse. 
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Charles Munns

Chuck Munns is a Vice Admiral (ret) in the U.S. Navy. He is an internationally recognized senior executive and leader best known for his long list of accomplishments in the U.S. Navy and as CEO of Savannah River Nuclear Solutions (SRNS) LLC, the company that operates DOE’s Savannah River Site. Admiral Munns successfully led SRNS from 2007 to 2009, directing the site’s 9,000 employees and $2B annual budget, and implementing several operational and technology improvements. Prior to this, he served for 34 years in some of the U.S. Navy’s most high-profile and challenging positions, culminating in the rank of Vice Admiral with responsibility for all U.S. submarines worldwide and NATO submarine policy. Admiral Munns currently serves as a senior advisor to industry and government on a wide range of national security, energy, IT, and education issues, policies, and technology, and is a 10-year member of the South Carolina Commission for Higher Education. He earned a B.S. in Physics from the United States Naval Academy and an M.S. in Computer Science from the University of Colorado.
Michael Pacilio

Mike Pacilio

Mike Pacilio led Exelon Corporation’s power generation fleet, the nation’s largest clean energy operator, consisting of nearly 100 generating units in 19 states and Canada. The fleet included the nation’s preeminent nuclear power operation as well as natural gas, hydro, wind and solar facilities. Mr. Pacilio is a seasoned executive who brings the full range of operational, technical, organizational, financial and public policy skills and experience to his roles. During his nearly 40-year career, Pacilio held increasingly responsible positions in Exelon Generation as the Executive Vice President and Chief Operating Officer and Exelon Nuclear as CEO. He was a driver of the successful growth of Exelon Nuclear’s business and business model, as Exelon Nuclear grew from ten units in 2000 to 21 today, overseeing all acquisitions. Mr. Pacilio led the nuclear sector’s response to the Fukushima tsunami, resulting in a well-designed emergency response capability on a national scale. He drove new initiatives to develop an energy workforce for the future, with specific focus on under-served communities and populations. He built stakeholder alliances for Exelon and for the power industry. Pacilio holds a B.S. Electrical Engineering, Purdue University, Senior Reactor Operator, and Advanced Management Program at Harvard University.
Steve Piccolo

Steve Piccolo

Steve Piccolo is an accomplished senior executive and entrepreneur in the nuclear energy industry. He was previously Board Chairman of Kurion and helped develop the company’s strategy for cesium removal in the aftermath of the Fukushima disaster. He held multiple executive positions with URS (now Amentum). His experience as Program Manager of the Defense Waste Processing Facility at SRS including production design and start-up gives him deep insight into issues facing the tank farm and the Waste Treatment Plant at Hanford. Previous to his DOE project work, Mr. Piccolo served as Recovery and Startup Manager for 5 commercial nuclear facilities. Throughout his career, he has started 6 companies and served as a board chairman or member on 8 companies. He holds a B.S. in Mechanical Engineering from the University of Rhode Island and a Master of Legal Studies degree from Eastern Michigan University, he also completed the Advanced Management Program at Duke University.
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Sue Stiger

Susan Stiger has built a long record of success in directing complex, highly visible nuclear industry projects with challenging regulatory requirements and multiple local, state, and national stakeholders. Ms. Stiger held 5 executive positions during her 24-year career with Bechtel Nuclear Security and Environmental, culminating as Senior Project Manager, Energy and Environment, where she guided project teams to optimize their performance within the DOE/NNSA system, served as the company’s representative for the DOE Office of Environmental Management, and interfaced with NNSA at headquarters and in the field. In previous positions with Bechtel, Ms. Stiger stepped in to serve as Associate Laboratory Director at Los Alamos National Laboratory, taking corrective action to improve performance issues associated with various laboratory environmental programs. During her 5 years as Vice President of Bechtel BWXT Idaho, LLC, she led project teams of more than 2,000 engineering, operations, scientific, and safety personnel, and developed an aggressive cleanup plan that reduced lifecycle costs by more than $18 billion and reduced the cleanup schedule by 35 years—a plan later adopted by DOE. Ms. Stiger has served as a Board Member of Waste Management Symposium since 2015 and the Energy Facility Contractors Group (EFCOG) since 2007. She earned an S.B. in Civil Engineering from MIT. 
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Arnaud Gay

Arnaud Gay brings 31 years of success in planning and overseeing international technology R&D and operations in the nuclear industry. He has exceled in progressively demanding leadership roles during his 26 years with Orano, currently as Executive VP of International Operations, where he directs multiple concurrent projects for the Back End Business Group. In this capacity, he represents Orano as Lead Director on the Board of NMP, the joint venture managing the Sellafield Site in the UK. In July 2016, in addition to his present position, he was appointed Head of the Technical Department of the Recycling Business Unit. In 2008, Mr. Gay was appointed Executive VP of the newly created D&D Business Unit, with management responsibility for all Orano D&D projects In support of the Fukushima recovery effort, he took the lead on Orano’s worldwide task force assigned to provide emergency response to any TEPCO requests; this included on-site operations management for 6 months in 2011. Early in his career, Mr. Gay served as an R&D and Advanced Studies Manager helping to develop the full potential of the La Hague and MELOX plants in France. He holds a degree in Industrial Chemistry Engineering from the ENSIC and a Master (DEA) in Energy Economy from the French Oil Institute (IFP).
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Michael McMurphy

Michael McMurphy is an experienced Board Member with a proven history as an executive in the nuclear and energy industry for more than 30 years. He is a United States Air Force veteran and served on the DOE legal staff before joining COGEMA, Inc. Michael became the U.S. CEO of COGEMA, Inc. (subsequently AREVA NC, Inc.) within 3 years of joining the company. and served on multiple boards including B&W Fuel Company, Pathfinder Mines, Sonora Gold. AREVA, Inc, SGN (French Engineering Company), and Transnuclear.  From 2008 to 2013, he served in Paris as Senior Executive Vice President of AREVA, SA, and was the only non-European on the company's Executive Committee. Michael was a Board Member of several French companies, as well as Eurodif and SET, two uranium enrichment companies with multi-national shareholders. Upon return to the U.S, he served as Exec VP and Vice Chair of AREVA, Inc. until his retirement in 2014. He serves on the Boards of Orano Federal Services, and OranoMed, which has developed cancer treatments. Michael is a graduate of the USAF Academy (BS), St. Mary's University (M.A.), and The University of Texas School of Law (J.D., honors). He is admitted to practice before several courts, including the U.S. Supreme Court. Michael is a Chevalier, La Legion d'Honneur (the highest French award) as well as Chevalier, Ordre National du Merite, and earned two Meritorious Service Medals while serving active duty USAF.
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