Oak Ridge National Laboratory Executive and Leadership Team

November, 2026

Leadership Overview

Oak Ridge National Laboratory has 8 executives leading key functions including financial strategy, operational oversight, information technology, energy research, security programs, and human resources.

Committed to advancing scientific discovery, Oak Ridge National Laboratory drives innovation through multiprogram research and technology development to address critical national challenges in energy and security.

Leadership Roles at Oak Ridge National Laboratory

  • Chief Financial Officer - Andrew Petzold
  • Chief Operating Officer - Thomas Cook
  • Chief Operating Officer, Fusion and Fission Energy and Science Directorate - James Placke
  • Chief Operating Officer - CCSD - Joseph Lake
  • Chief Operating Officer, Energy Science & Technology Directorate - Ronald Ott
  • Chief Information Officer - Kristofer Torgerson
  • National & Homeland Security Programs Chief of Staff - Margaret Spurlin
  • Chief Human Resources Officer - Brian Arrington SHRM-SCP
  • Andrew Petzold - Chief Financial Officer

    Andrew Petzold, the Chief Financial Officer at Oak Ridge National Laboratory, directs all fiscal planning and budgetary management for the institution. Overseeing complex funding streams from the U.S. Department of Energy, the Chief Financial Officer ensures rigorous compliance with federal regulations while optimizing resource allocation across diverse research divisions. This leadership role involves coordinating with the Board to maintain financial stability during large-scale scientific projects. By implementing advanced accounting systems, Andrew Petzold directly impacts the operational efficiency of the laboratory. Ultimately, Petzold secures the necessary capital to support long-term research initiatives, ensuring that the laboratory maintains its status as a premier federally funded research and development center while managing the fiscal complexities inherent in high-stakes scientific discovery and national technology development programs.

    Thomas Cook - Chief Operating Officer

    Thomas Cook, the Chief Operating Officer at Oak Ridge National Laboratory, manages the daily administrative and logistical functions required to sustain a world-class research environment. Overseeing facility maintenance and infrastructure development, the Chief Operating Officer ensures that scientific teams possess the necessary tools to conduct high-impact research. This leadership role involves streamlining internal processes to enhance productivity across the entire laboratory campus. By aligning operational workflows with the broader mission of the U.S. Department of Energy, Thomas Cook directly impacts the speed and quality of scientific output. Ultimately, Cook maintains the operational integrity of the facility, providing a stable foundation for complex experiments and technological breakthroughs that define the laboratory's reputation as a leader in American science and technology.

    James Placke - Chief Operating Officer, Fusion and Fission Energy and Science Directorate

    James Placke, the Chief Operating Officer, Fusion and Fission Energy and Science Directorate at Oak Ridge National Laboratory, manages the operational execution of advanced nuclear energy research programs. Overseeing the technical staff and experimental facilities, the Chief Operating Officer ensures that fusion and fission projects meet rigorous safety and performance standards. This leadership role involves coordinating with federal partners to align research goals with national energy objectives. By optimizing the use of specialized reactors and testing equipment, James Placke directly impacts the progress of sustainable energy solutions. Ultimately, Placke facilitates the transition of theoretical energy science into practical applications, ensuring that the laboratory continues to lead in the development of next-generation nuclear technologies and clean energy systems for the nation.
    James Placke

    Joseph Lake - Chief Operating Officer - CCSD

    Joseph Lake, the Chief Operating Officer - CCSD at Oak Ridge National Laboratory, directs the operational activities within the Computing and Computational Sciences Directorate. Overseeing the management of supercomputing facilities and data centers, the Chief Operating Officer ensures that computational resources are available for high-priority scientific research. This leadership role involves balancing the needs of diverse research teams with the technical requirements of maintaining world-class hardware. By optimizing the utilization of computational assets, Joseph Lake directly impacts the laboratory's capacity for large-scale data modeling and simulation. Ultimately, Lake supports the advancement of computational science, ensuring that the laboratory maintains its competitive edge in high-performance computing and data-driven discovery for the benefit of the scientific community and national research goals.
    Joseph Lake

    Ronald Ott - Chief Operating Officer, Energy Science & Technology Directorate

    Ronald Ott, the Chief Operating Officer, Energy Science & Technology Directorate at Oak Ridge National Laboratory, manages the operational framework for research into advanced materials, energy storage, and power systems. Overseeing the laboratory's energy-focused experimental facilities, the Chief Operating Officer ensures that research teams have the resources to drive breakthroughs in sustainable energy. This leadership role involves coordinating with internal and external partners to accelerate the development of new energy technologies. By optimizing the operational efficiency of the directorate, Ronald Ott directly impacts the speed at which new energy solutions reach the market. Ultimately, Ott supports the laboratory's mission to transform the energy landscape, ensuring that the institution remains a leader in developing the technologies required for a secure and sustainable energy future.

    Kristofer Torgerson - Chief Information Officer

    Kristofer Torgerson, the Chief Information Officer at Oak Ridge National Laboratory, architects the digital infrastructure and cybersecurity frameworks essential for high-performance computing and data-intensive research. Overseeing the integration of advanced networking systems, the Chief Information Officer ensures that sensitive scientific data remains secure while remaining accessible to authorized researchers. This leadership role involves collaborating with the Board to prioritize investments in cutting-edge computational technology. By modernizing the laboratory's digital landscape, Kristofer Torgerson directly impacts the ability of scientists to process massive datasets and simulate complex physical phenomena. Ultimately, Torgerson drives the technological evolution of the institution, ensuring that the laboratory remains at the forefront of global scientific computing and data analysis capabilities within the national laboratory system.

    Margaret Spurlin - National & Homeland Security Programs Chief of Staff

    Margaret Spurlin, the National & Homeland Security Programs Chief of Staff at Oak Ridge National Laboratory, coordinates the strategic execution of security-focused research and development initiatives. Overseeing the alignment of departmental goals with national security priorities, the Chief of Staff ensures that critical projects receive the necessary administrative support and cross-functional collaboration. This leadership role involves managing complex stakeholder relationships and ensuring that security programs adhere to strict federal guidelines. By streamlining communication between research teams and executive leadership, Margaret Spurlin directly impacts the efficiency of security-related technology deployment. Ultimately, Spurlin strengthens the laboratory's contribution to national defense and homeland security, ensuring that the institution remains a vital asset in protecting the country through advanced scientific research and technological innovation.

    Brian Arrington SHRM-SCP - Chief Human Resources Officer

    Brian Arrington SHRM-SCP, the Chief Human Resources Officer at Oak Ridge National Laboratory, manages the talent acquisition, professional development, and workforce strategy for the entire institution. Overseeing the recruitment of top-tier scientific and technical talent, the Chief Human Resources Officer ensures that the laboratory maintains a highly skilled and diverse workforce. This leadership role involves designing compensation structures and performance management systems that align with the laboratory's mission. By fostering a culture of innovation and excellence, Brian Arrington SHRM-SCP directly impacts the retention of world-class researchers and support staff. Ultimately, Arrington builds the human capital necessary to sustain the laboratory's long-term research objectives, ensuring that the institution remains an employer of choice for the brightest minds in science and technology.

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    Frequently Asked Questions Regarding Oak Ridge National Laboratory Top Executives and Leadership Team

    Who leads Oak Ridge National Laboratory?
    Oak Ridge National Laboratory is led by Andrew Petzold (Chief Financial Officer), along with executives such as Thomas Cook (Chief Operating Officer) and James Placke (Chief Operating Officer, Fusion and Fission Energy and Science Directorate).
    Who is part of Oak Ridge National Laboratory’s executive team?
    The executive team of Oak Ridge National Laboratory includes leaders such as Andrew Petzold (Chief Financial Officer), Thomas Cook (Chief Operating Officer), James Placke (Chief Operating Officer, Fusion and Fission Energy and Science Directorate) and other senior executives.
    How many executives does Oak Ridge National Laboratory have?
    Oak Ridge National Laboratory has 8 executives leading key business areas.
    What roles are included in Oak Ridge National Laboratory’s leadership team?
    The leadership team of Oak Ridge National Laboratory includes roles such as Chief Financial Officer, Chief Operating Officer, Chief Operating Officer, Fusion and Fission Energy and Science Directorate, Chief Operating Officer - CCSD, Chief Operating Officer, Energy Science & Technology Directorate.