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 Organization Chart 11/20/2025

U.S. Department of Energy Org Chart

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

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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 Energy

The Office of the Under Secretary for Energy 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, 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

The Office of the Under Secretary for Science oversees the Arctic Energy Office, the Office of Critical and Emerging Technologies, the Office of Energy Efficiency and Renewable Energy, the Office of Fossil Energy, the Office of Nuclear Energy, the Office of Electricity, the Office of Science, and 13 of the 17 DOE National Laboratories. 

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.
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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.