National Nuclear Security Administration (NNSA) logo

National Nuclear Security Administration (NNSA) Employee Directory

Government AdministrationDistrict of Columbia, United States10001+ Employees

The National Nuclear Security Administration (NNSA) is a semi-autonomous agency within the U.S. Department of Energy, created by Congress in 2000. Its core mission is to safeguard the nation by designing and delivering a safe, secure, and reliable U.S. nuclear stockpile, advance global security through nonproliferation and counterproliferation efforts, and coordinate responses to nuclear and radiological emergencies at home and abroad. The agency also provides nuclear propulsion to power the U.S. Navy and pursues transformative technologies to address emerging challenges.

NNSA operates the Nuclear Security Enterprise, a network of headquarters sites and national laboratories as well as major facilities across the United States. Its footprint includes headquarters in Washington, DC; Gaithersburg, MD; and Albuquerque, NM, the Kansas City National Security Campus, and laboratories such as Lawrence Livermore, Los Alamos, and Sandia, plus sites like the Nevada National Security Site, Pantex Plant, Savannah River Site, and Y-12 National Security Complex. Based in Washington, DC, with a nationwide network, the organization employs several thousand people to support national security objectives.

Find National Nuclear Security Administration (NNSA) employees' phone numbers or email addresses

National Nuclear Security Administration (NNSA) Global Highlights

Location
Employees

North America
1.8K

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  • United States Of America
    1.8K
  • Mexico
    1
  • Trinidad And Tobago
    1

Asia
26

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  • India
    9
  • China
    4
  • Japan
    2
  • Pakistan
    2
  • Philippines
    2
  • Bangladesh
    1
  • Iran
    1
  • Afghanistan
    1
  • Saudi Arabia
    1
  • Lebanon
    1
  • Indonesia
    1
  • Singapore
    1

Europe
12

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  • United Kingdom Of Great Britain And Northern Ireland
    3
  • Poland
    3
  • Ukraine
    1
  • Spain
    1
  • Switzerland
    1
  • Germany
    1
  • Bosnia And Herzegovina
    1
  • France
    1

Africa
6

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  • Nigeria
    4
  • South Africa
    1
  • Kenya
    1

South America
6

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  • Argentina
    6

Oceania
1

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  • Papua New Guinea
    1

National Nuclear Security Administration (NNSA)'s Leadership

  • Chief Information Officer at National Nuclear Security Administration (NNSA)
    J. W.
    Chief Information Officer
  • Chief Human Capital Officer at National Nuclear Security Administration (NNSA)
    D. M. N.
    Chief Human Capital Officer
  • Chief Counsel, Nrlfo at National Nuclear Security Administration (NNSA)
    C. N.
    Chief Counsel, Nrlfo
  • Chief Of Staff at National Nuclear Security Administration (NNSA)
    B. C.
    Chief Of Staff
  • Chief Of Staff, Management And Budget at National Nuclear Security Administration (NNSA)
    P. J.
    Chief Of Staff, Management And Budget
  • President at National Nuclear Security Administration (NNSA)
    G. M. H.
    President
  • Nuclear Incident Response (na-84)/Nest Ops Branch Chief at National Nuclear Security Administration (NNSA)
    J. C.
    Nuclear Incident Response (na-84)/Nest Ops Branch Chief
  • Branch Chief at National Nuclear Security Administration (NNSA)
    O. A.
    Branch Chief

National Nuclear Security Administration (NNSA) Employee Metrics

100%
50%
0%
2026
2025
  • Engineering
  • Program & Project Management
  • Analytics
  • Military & Protective Services
  • Administrative
  • Other
  • Community & Social Services
  • Healthcare Services
  • Information Technology

Contact profiles from National Nuclear Security Administration (NNSA)

Name
Title
Contact
Location
Last Update
  • President at National Nuclear Security Administration (NNSA)
    G. M. H.
    President
    Sep 30, 2026
  • Chief Information Officer at National Nuclear Security Administration (NNSA)
    J. W.
    Chief Information Officer
    Sep 26, 2026
  • Chief Human Capital Officer at National Nuclear Security Administration (NNSA)
    D. M. N.
    Chief Human Capital Officer
    Feb 24, 2026
  • Nuclear Incident Response (na-84)/Nest Ops Branch Chief at National Nuclear Security Administration (NNSA)
    J. C.
    Nuclear Incident Response (na-84)/Nest Ops Branch Chief
    Sep 27, 2026
  • Branch Chief at National Nuclear Security Administration (NNSA)
    O. A.
    Branch Chief
    Dec 12, 2025
  • Chief Counsel, Nrlfo at National Nuclear Security Administration (NNSA)
    C. N.
    Chief Counsel, Nrlfo
    Oct 16, 2024
  • Director, Defense Nuclear Nonproliferation Resource And Matrix Division; Management And Budget at National Nuclear Security Administration (NNSA)
    P. G.
    Director, Defense Nuclear Nonproliferation Resource And Matrix Division; Management And Budget
    Apr 28, 2026
  • Chief Of Staff at National Nuclear Security Administration (NNSA)
    B. C.
    Chief Of Staff
    Jun 28, 2026
  • Director, Office Of Programming, Analysis, And Evaluation (pa&e) at National Nuclear Security Administration (NNSA)
    C. F.
    Director, Office Of Programming, Analysis, And Evaluation (pa&e)
    Apr 16, 2026
  • Director Of Nuclear Industrial Base Monitoring at National Nuclear Security Administration (NNSA)
    D. E.
    Director Of Nuclear Industrial Base Monitoring
    Apr 14, 2026

Frequently Asked Questions

What is National Nuclear Security Administration (NNSA) known for?

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National Nuclear Security Administration (NNSA) was founded in 2000 and operates in the Government Administration industry. You can contact National Nuclear Security Administration (NNSA)'s main corporate office by phone at . Explore National Nuclear Security Administration (NNSA)'s company overview page for more information.

What is National Nuclear Security Administration (NNSA)'s most common email format?

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National Nuclear Security Administration (NNSA) employees' email format typically follows the pattern of First.Last@energy.gov. Trying to find reliable and up-to-date employee contact data? Find more National Nuclear Security Administration (NNSA) email formats with LeadIQ.

How many employees does National Nuclear Security Administration (NNSA) have currently?

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National Nuclear Security Administration (NNSA) has approximately 47K employees as of October 2026. These team members are located across 6 continents, including North America, Asia and Europe.

Who are National Nuclear Security Administration (NNSA)'s key employees and leadership?

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As of October 2026, National Nuclear Security Administration (NNSA)'s key employees include:

  • Chief Information Officer: J. W.
  • Chief Human Capital Officer: D. M. N.
  • Chief Counsel, Nrlfo: C. N.
  • Chief Of Staff: B. C.
  • Chief Of Staff, Management And Budget: P. J.

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