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 an $831 million diversified research portfolio and more than 3,200 employees, 8,300 facility users, and 1,600 visiting researchers. Kearns served as Argonne Chief Operations Officer from 2010 to 2017.
Megan C. Clifford is Chief of Staff at Argonne National Laboratory. She serves as an advisor to Laboratory Director Paul Kearns to drive forward the laboratory’s vision and stakeholder relationships. Working with leaders across the laboratory, Clifford stewards Argonne’s change initiative to deliver lasting impact through science and technology leadership, research and operations excellence, and people development. She promotes a culture of diversity and inclusion within the laboratory through values-based leadership.
Division Director, Nanoscience & Technology (NST)/Institute for Molecular Engineering (IME)
Supratik Guha is the director of the Nanoscience and Technology division and the Center for Nanoscale Materials at Argonne National Laboratory, and a Professor at the Institute for Molecular Engineering at the University of Chicago. He is also the Senior Scientific Advisor to the Director at Argonne.
Kawtar Hafidi is Associate Laboratory Director for Physical Sciences and Engineering. She oversees the laboratory’s research programs in physics and high energy physics, materials science, chemical science and engineering, and nanoscience and technology.
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 Interim 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. 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.
Interim Associate Laboratory Director Science & Technology Partnerships and Outreach
Dr. Ushma Kriplani serves as Interim Associate Laboratory Director for the Science & Technology Partnerships and Outreach directorate. Dr. Kriplani joined Argonne in 2015 to work on commercializing laboratory-developed technologies through a variety of avenues. More recently, she has been supporting the Laboratory’s priority science and technology initiatives as well.
Chief Communications Officer/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.
Chief Research Officer Council Chair & Argonne Distinguished Fellow
Dr. Amanda K. Petford-Long is the Chair of the Chief Research Officer Council (CROC) at Argonne National Laboratory. In this role, she serves as Argonne’s representative on the National Lab Chief Research Officer group, and also leads the CROC council, whose roles include advising Argonne leadership on scientific and programmatic opportunities and issues, promoting a lab-wide view of Argonne with a strong focus on increasing synergies across the laboratory, and developing initiatives that promote Argonne’s core values.
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.
Associate Laboratory Director, Photon Sciences, and Director of the APS
Stephen Streiffer is the Associate Laboratory Director for Photon Sciences at Argonne. Photon Sciences consists of the X-ray Science, Accelerator Systems and Advanced Photon Source Engineering Support divisions, which comprise the Advanced Photon Source (APS), the largest scientific user facility in North America; and the Argonne Accelerator Institute.
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.
Gail Stine is Interim Senior Director of Argonne National Laboratory’s Environment, Safety, Health, and Quality Directorate. The directorate integrates the Lab’s environment, health, safety, and quality programs to maintain a work culture that protects the safety, security, and well-being of Argonne employees and the environment.
Interim Associate Laboratory Director, Energy and Global Security Directorate
Dr. Suresh Sunderrajan is the Interim 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.