Paul K. Kearns has served as Director of the U.S. Department of Energy’s Argonne National Laboratory since 2017. Kearns manages a growing multidisciplinary science and engineering research center with a $1.2 billion diversified research portfolio and more than 3,300 employees, 8,000 facility users, and 800 visiting researchers. Kearns served as Argonne chief operations officer from 2010 to 2017.
Deputy Laboratory Director for Operations/Chief Operations Officer
Kim Sawyer is responsible for leading and driving the strategies and actions to achieve efficient, effective, and safe operations at Argonne. Leveraging her extensive experience within the national laboratories, the Department of Energy, and the private sector, Kim works with leaders across the laboratory to continuously improve the services that support Argonne’s world-changing science, technology, and engineering.
Deputy Laboratory Director for Science & Technology
Stephen Streiffer is the Deputy Laboratory Director (DLD) for Science and Technology at Argonne. In this role, he works with the Lab Director and Associate Laboratory Directors to develop and shepherd Argonne’s scientific and technical portfolio and to articulate the Laboratory’s strategic priorities including through the development of Argonne’s Office of Science Annual Laboratory Plan.
Laurent Chapon is Argonne’s Associate Laboratory Director for Photon Sciences. He also directs the Advanced Photon Source (APS), a U.S. Department of Energy (DOE) Office of Science user facility at Argonne.
Associate Laboratory Director for Science & Technology Partnerships and Outreach
Megan C. Clifford is Associate Laboratory Director for Science and Technology Partnerships and Outreach. Her focus areas in this role include: maximizing outcomes of existing collaborations and partnerships; supporting the creation of new collaborations and partnerships; and support of lab-wide strategy and program development – all with the goal of increasing the impact of Argonne’s work.
Kawtar Hafidi is Associate Laboratory Director for Physical Sciences and Engineering. She oversees five Argonne research divisions and two U.S. Department of Energy user facilities conducting fundamental and applied research in nuclear and high energy physics, materials science, chemical science and engineering, and nanoscience and technology.
Associate Laboratory Director and Argonne Distinguished Fellow
Rick Stevens is Associate Laboratory Director for Computing, Environment and Life Sciences (CELS). He oversees a research program that connects computing to several areas of inquiry, and heads Argonne’s research initiatives for both exascale computing and computational biology.
Dr. Suresh Sunderrajan is the Associate Laboratory Director for the Energy and Global Security Directorate. He leads a team that applies crosscutting expertise in science, engineering, and technology to develop solutions to challenging problems related to energy, manufacturing, and global security.
Mike Dunn is the Interim Senior Director for Environmental, Safety, Health and Quality Directorate, which oversees the implementation of Argonne’s Worker Safety and Health, Radiation Safety Protection, Environmental Compliance, Emergency Management, and Quality Assurance Programs.
Stu Hannay is Chief Information Officer and Senior Director of Argonne National Laboratory’s Business Information Services Directorate. BIS executes a strategy of business transformation through technology processes, platforms and systems including: applications development, delivery, and support; infrastructure; telecommunications; library services; knowledge management; cyber security; and business intelligence to enable data-driven decision-making.
Karen Hellman is Senior Director of Argonne’s Infrastructure Services directorate, which provides strategic site stewardship through infrastructure planning and modernization; project management; facilities management, including nuclear facilities; waste management; site services; and security and emergency management.
Tim Knewitz is Argonne National Laboratory’s Chief Financial Officer and Senior Director of Argonne’s Financial Management and Procurement Services directorate. Tim has extensive experience working with the U.S. Department of Energy and the national lab complex, and is a member of the National Laboratories CFO Executive Council. He was at Sandia National Laboratories for 30 years, where he served as the Chief Financial Officer since 2017. Tim is a Certified Public Accountant. He has Master of Accountancy and Bachelor of Accountancy degrees from New Mexico State University.
Chief Communications Officer/Senior Director of Communications & Public Affairs
Leslie Krohn joined Argonne National Laboratory in 2018 to lead the Communications and Public Affairs division. Prior to working at Argonne, Leslie held leadership roles in communications and marketing at Nielsen, Sara Lee, GE and Accenture. She earned a Master of Science in Integrated Marketing Communication at Northwestern University’s Medill School of Journalism, and a bachelor’s degree in American Studies from the University of Notre Dame.
Julie Nuter is Chief Human Resources Officer and Senior Director of Argonne National Laboratory’s Human Resource Services Directorate. HRS oversees the laboratory’s talent strategy, seeking to attract and retain the people the lab needs to excel; sustain a diverse and inclusive culture that helps the lab succeed and thrive; and inspire the next generation of scientists and engineers through educational programs.