Our Leadership & Offices

The U.S. Department of Energy’s mission is to ensure America’s security and prosperity by addressing its energy, environmental, and nuclear challenges through transformative science and technology solutions. Scroll through this page to meet our Leadership and explore the Department’s mission areas and offices.
Department of Energy Org Chart (Jan 2025)

U.S. Department of Energy Org Chart

Explore the organizational structure of the U.S. Department of Energy.

Photo of a large bronze statue of the DOE seal, located inside DOE Headquarters in Washington, D.C.

Office of the Secretary

The Office of the Secretary directly supports the Secretary of Energy, a member of the President’s Cabinet, in leading the U.S. Department of Energy (DOE) and carrying out its mission. The Deputy Secretary and the Deputy Secretary’s team are also members of the Office of the Secretary.

Staff Offices

The following offices within the U.S. Department of Energy report directly to the Office of the Secretary. Click the individual cards to learn more about each office and their work.
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Office of the Under Secretary for Infrastructure

The Office of the Under Secretary for Infrastructure deploys energy infrastructure investments to communities around the country. These efforts aim to renew our nation's infrastructure, rebuild domestic manufacturing, create millions of good-paying jobs, address climate change, and increase American competitiveness.

Infrastructure Program Offices

The following offices within the U.S. Department of Energy report directly to the Office of the Under Secretary for Infrastructure. Click the individual cards to learn more about each office and their work.
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Office of the Under Secretary for Science and Innovation

The Office of the Under Secretary for Science and Innovation oversees the nation’s largest federal sponsor of basic research in the physical sciences; DOE’s applied research and development in nuclear, fossil, and renewable energy, as well as in energy system integrity; and 13 of the 17 Department National Laboratories and their facilities.

Science and Innovation Program Offices

The following offices within the U.S. Department of Energy report directly to the Office of the Under Secretary for Science and Innovation. Click the individual cards to learn more about each office and their work.
Photo of the Z Machine, part of the Pulsed Power Program, at Sandia National Lab. The room is dark and the machine is glowing blue and purple, with reddish/pink wires everwhere.

National Nuclear Security Administration (NNSA)

NNSA is a semi-autonomous agency within the Department of Energy that protects our nation by designing and delivering a safe, secure, reliable, and effective U.S. nuclear stockpile; forging solutions that enable global security and stability through nonproliferation, counterproliferation, and emergency response; providing nuclear propulsion to power the U.S. Navy; and more.

Nuclear Security Offices

The following offices report to the National Nuclear Security Administration. Click the individual cards to learn more about each office and their work.
The Department of Energy James V. Forrestal building in Washington, D.C.

Independent Offices

A small number of offices at the Department operate outside of the traditional reporting structures to protect their independence and the autonomy of their office mission.

Independent Offices

The following offices operate independently of the traditional reporting structure due to their specific mission. Click the individual cards to learn more about each office and their work.