Los Alamos National Laboratory

Los Alamos National Laboratory

Delivering science and technology to protect our nation and promote world stability

Organization Charts

The Lab's mission is to develop and apply science and technology to ensure the safety, security, and reliability of the U.S. nuclear deterrent; reduce global threats; and solve other emerging national security and energy challenges.

Laboratory Director Terry C. Wallace, Jr.

Deputy Director for Mission Assurance W. Scott Gibbs

Deputy Director Richard Kacich

Executive Director/Associate Director Carolyn Zerkle

  • Chief Financial Officer Jay Johnson
  • Chief Information Officer Mike Fisk
  • Chief Scientist Alan Bishop
  • Chief Technology Officer Duncan McBranch
  • Communications & Public Affairs Matt Nerzig
  • Ethics & Audit Director John Schroeder
  • Government Affairs & Protocol Patrick Woehrle
  • Human Resources Sue Harris
  • General Counsel David Sosinski
  • LANS, LLC Executive Staff Director Karen Conner
  • National Security & International Studies Kory Budlong Sylvester
  • Prime Contract Manager Andrea Martinez

Science, Technology & Engineering: Principal Associate Director John Sarrao

  • Chemistry, Life, & Earth Sciences Associate Director Nan Sauer
  • Engineering Sciences Associate Director Paul Wantuck
  • Experimental Physical Sciences Associate Director Mary Hockaday
  • Theory, Simulation, & Computation Associate Director Paul Dotson (Acting)

Weapons Programs: Principal Associate Director Bob Webster

  • Plutonium Science & Manufacturing Associate Director Jeff Yarbrough
  • Weapons Engineering & Experiments Associate Director James Owen
  • Weapons Physics Associate Director Michael Bernardin

Global Security: Principal Associate Director Terry Wallace

  • Threat Identification & Response Associate Director Evelyn Mullen

Operations & Business: Principal Associate Director Craig Leasure

  • Business Innovation Associate Director Steve Renfro
  • Environment, Safety & Health Associate Director William Mairson
  • Nuclear & High Hazard Operations Associate Director Cheryl Cabbil
  • Security & Safeguards Associate Director Michael Lansing

Capital Projects: Principal Associate Director Michael Costas

  • Project Management Associate Director Mark Watts