Los Alamos National Laboratory
Delivering science and technology to protect our nation and promote world stability
Lab Organizations
National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors.
Director's Office
- Laboratory Director, Thomas Mason | bio
- Deputy Director Science, Technology & Engineering, John Sarrao | bio
- Deputy Director Weapons, Robert Webster | bio
- Deputy Director Operations, Kelly Beierschmitt | bio
- Staff Director, Frances Chadwick | bio
Leadership Team Photo Org Chart (pdf) portrait | landscape
Associate Level Directorates
Mission & Enabling Science, Technology and Engineering
- Global Security, Nancy Jo Nicholas | bio
- Physical Sciences, Antoinette Taylor | bio
- Chemical, Earth and Life Sciences, J. Patrick Fitch | bio
- Simulation & Computation, Irene Qualters | bio
Weapons Mission
- Weapons Physics, Charlie Nakhleh | bio
- Weapons Engineering, James Owen | bio
- Weapons Production, Dave Eyler | bio
- Actinide Operations, Frank Gibbs | bio
Mission Operations
- Environment, Safety, Health & Quality and Safeguards and Security, Michael Hazen | bio
- Capital Projects, Kathye Segala | bio
- Business Management, LeAnne Stribley | bio
- Facilities & Operations, Bret Simpkins | bio
Divisions, Programs, Offices
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
- Accelerator Development (ACCDEV), David Funk
- Accelerator Operations and Technology, Stephen Val Milton
- Acquisition Services Management, Warren Finch (acting)
- Actinide Material Processing & Power, Stacy McLaughlin (A)
- Advanced Simulation and Computing Program, Bill Archer
- Analysis, Intelligence, and Technology, Matt Kirkland
- Applied Energy Program, Melissa Fox
- Bioscience, Elizabeth Hong-Geller (acting)
- Chemistry, Mark McCleskey
- Civilian Nuclear Programs, Venkateswara Rao Dasari (Rao)
- Communications and External Affairs, Patrick Woehrle
- Community Partnerships Office, Kathy Keith
- Computer, Computational, and Statistical Sciences, Edward Dendy
- Conduct of Engineering Office, Julie Minton-Hughes
- Construction Management, Jim Rammell
- Cost and Scheduling, Steve Morton
- Cyber & Systems Architecture (CSA), Mike Fisk
- Defense Security Program, Unica Viramontes
- Deployed ESH, Stephanie Archuleta
- Detonator Production, Dave Armstrong
- Dynamic Experiments, Charles (Chuck) Mielke
- Earth and Environmental Sciences, Andrew Wolfsberg
- Emergency Management, David Stuhan
- Engineering Services, Larry Goen
- Engineering, Stockpile Assessments, and Responsiveness, Don Haynes
- Engineering Technology and Design, Jay Carnes (acting)
- Environmental Protection, Enrique "Kiki" Torres
- Equal Opportunity and Diversity, C J Bacino
- Estimating, Brian Temple
- Ethics and Audit, John Schroeder
- Experience IT, Brian M. Martinez
- Experimental Science Program, Kimberly Scott
- External Assignments, Dee Dee McInroy
- Feynman Center for Innovation, Antonio Redondo
- Finance & Accounting, K. Aaron Menefee
- Fire Protection, Jim Streit
- General Counsel, David A. Sosinski
- Global Security Program, Andy Erickson
- GS Program Support Office, Leslie Maestas
- High Performance Computing, Gary Grider
- Human Resources, Tim Babicke (acting)
- Information Science and Technology Center, Stephan Eidenbenz
- Infrastructure Programs Office, Edmond Keith
- Infrastructure Project Delivery, Andy Tisler
- Institutional Quality and Performance Assurance, Seth Littleton
- Integrated Program Management, Mike Stevens
- Integrated Weapons Experiments, Jonathan Morgan, (acting)
- Intelligence and Emerging Threats Program Office, Eric Dors
- Intelligence and Space Research, Herb Funsten
- Lab Directed Research and Development, William Priedhorsky
- Lean Six Sigma Office, Robbie Harris
- Logistics, John Merhege
- Los Alamos Neutron Science Center, Gus Sinnis
- Los Alamos Neutron Science Center Facility Operations, Gary Hagermann
- Maintenance and Site Services, Reed Sharp
- MaRIE Program Office, Cris Barnes
- Materials Physics and Applications, Andrew Dattelbaum
- Materials Science and Technology, Ellen Cerreta
- National Security and International Studies Office, Kory Sylvester
- National Security and Defense Program Office, Bill Humbert
- National Security Education Center, David L. Clark
- Network and Infrastructure Engineering, Leslie J. Geyer
- Nuclear Counterterrorism and Counter Proliferation Program Office, Kerry W. Habiger
- Nuclear Criticality Safety, Bill Crooks
- Nuclear Engineering and Nonproliferation, Mary P. Hockaday
- Nuclear Nonproliferation and Security Program Office, Nina Rosenberg
- Nuclear Process Infrastructure, Steve Schreiber
- Nuclear Safety Program (NSP) , Derek Gordon
- Occupational Safety and Health, Jim Coy
- Office of Counterintelligence, John Chaddic
- Office of Major Project Delivery (MPD), Mark Peres
- Office of Nuclear & Military Affairs (NMA), Jon Ventura
- Office of Science (SPO-SC), Srinivas Iyer
- Office of Stockpile Assessment , Sieg Shalles
- Office of Strategic Analysis, Richard Castro
- Office of Strategy and Integration (WP-SI), Tri Tran (acting)
- Ombudsman, Mary Beth Stevens
- Operational Readiness Implementation (ORI), Michael Baker
- Operations and Infrastructure Program Office, Ken Schlindwein
- Operations Support, James Angelo
- Partnerships & Pipeline Office (PPO), Nan Sauer
- Physics, Tanja Pietrass
- Pit Technologies, Guy Baker
- Physical Security, Michael Wismer
- Plutonium Strategy Infrastructure, Tim Nelson
- Price-Anderson Amendment Act Program Office, Rachel Schroeder
- Prime Contract Management, Andrea Martinez
- Production Agency Quality, Dale Sivils
- Production Programs, Juan Corpion
- Program Performance Services, Dave Pesiri
- Project Integration, Ron Schroder
- Prototype Fabrication, Kevin Saeger
- Radiation Protection, Maria Nappi
- Safeguards, Jonathan Theye
- Safety Basis, Jim Tingey
- Security, Jason Lujan (acting)
- Science Resource Office, Bill Priedhorsky
- Science and Technology Operations, Cliff Kirkland
- Science Program Office, Michael Hundley
- Sensitive and Special Operations, Ray Ferry
- Service Innovation, Leon Lopez
- Sigma Division, Jon Bridgewater (acting)
- Software and Applications Engineering, Tim King
- Strategic Projects & Engineering, Tim George
- Strategic Science & Engineering, Dave Costa
- Strategic Outcomes Office, Duncan McBranch
- TA-55 Facility Operations, Robert C. Mason
- Theoretical, Marianne Francois
- UK Program Office, Stephanie Frankle
- Utilities and Institutional Facilities, Andy Erickson
- Voluntary Protection Program Office (VPP), Vanessa De La Cruz
- Weapons Facilities Operations (WFO), Brian Watkins
- Weapons Infrastructure Program Office (WI), Deb Lewis
- Weapons Research Services (WRS), Carla Breiner
- Weapon Stockpile Modernization (Q), Robert Bishop
- Weapon Systems Engineering (W), Donald Quintana
- X-Computational Physics (XCP), Mark Schraad
- X-Theoretical Design (XTD), Charles W. Nakhleh