Los Alamos National Security, LLC
LANL and NSSB building

Los Alamos National Laboratory complex with a backdrop of the Jemez Mountain range.

Los Alamos National Security, LLC (LANS, LLC) is a private limited liability company (LLC) formed by the University of California, Bechtel, Babcock & Wilcox Technical Services, and URS Energy and Construction. It assumed direct management and operation of the Los Alamos National Laboratory on June 1, 2006.

An agreement between the four LANS, LLC members established a Board of Governors that is charged with oversight and governance of LANS, LLC. The Board includes three individuals appointed by the University of California and three individuals appointed by Bechtel, as well as four independent Governors who are selected for their expertise and experience in fields pertinent to LANL operations. The Board includes an Executive Committee that consists of the six University of California and Bechtel appointees, and five Advisory Governors.

The President of LANS, LLC, Charles F. McMillan, reports directly and solely to the LANS LLC Board of Governors. McMillan also serves as LANL director.

LANS, LLC operates Los Alamos National Laboratory under contract to the Department of Energy’s National Nuclear Security Administration.

Learn more about LANS, LLC:

For accomplishments, see the reports page.


LANS, LLC has a traditional corporate relationship to LANL

LANS management and operations


  • 105 Central Park Square
  • Los Alamos, NM 87544
  • Phone: (505) 606-0105
  • FAX: (505) 665-9096
  • Alternate phone:
  • (505) 665-1398
  • (505) 665-0941

Executive Team

  • Executive Staff Director
  • Karen West (Acting)
  • Email
  • (505) 665-1213
  • Executive Staff Advisor
  • Danny Branch
  • Email
  • (505) 667-9920
    BechtelBabcock&WillcoxUniversity of CaliforniaURC