Los Alamos National Laboratory's Leadership

The Leadership Team is fully committed to enabling the Laboratory’s mission while supporting its people, further enhancing the culture, and meeting the goals outlined in the Lab Agenda.

Laboratory Director's Office

Thomas Mason image

Thomas Mason

Laboratory Director

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Frances Chadwick image

Frances Chadwick

Staff Director

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Kelly Beierschmitt image

Kelly Beierschmitt

Deputy Laboratory Director Operations

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Mark Chadwick image

Mark Chadwick

Deputy Director Science, Technology, and Engineering

Robert Webster image

Robert Webster

Deputy Laboratory Director Weapons

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Associate Laboratory Directors

LeAnne Stribley image

LeAnne Stribley

Associate Laboratory Director, Business Management

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J. Patrick Fitch image

J. Patrick Fitch

Associate Laboratory Director, Chemical, Earth & Life Sciences

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Unica Viramontes image

Unica Viramontes

Associate Laboratory Director, Defense Protection Program

Steven Coleman image

Steven Coleman

Associate Laboratory Director, Environment, Safety, Health & Quality

Bret Simpkins image

Bret Simpkins

Associate Laboratory Director, Facilities & Operations

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Nancy Jo Nicholas image

Nancy Jo Nicholas

Associate Laboratory Director, Global Security

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Dave Teter image

Dave Teter

Associate Laboratory Director, Infrastructure and Capital Projects

Ellen Cerreta image

Ellen Cerreta

Associate Laboratory Director, Physical Sciences

Mark Anthony image

Mark Anthony

Associate Laboratory Director, Plutonium Infrastructure

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Andrew Wolfsberg image

Andrew Wolfsberg

Associate Laboratory Director, Simulation & Computation

James C. Owen image

James C. Owen

Associate Laboratory Director, Weapons Engineering

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Charlie Nakhleh image

Charlie Nakhleh

Associate Laboratory Director, Weapons Physics

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John Benner image

John Benner

Associate Laboratory Director, Weapons Production

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