Advanced Search
NAC International Inc

NAC International Inc

Company providing nuclear fuel cycle technology and consulting solutions.

NAC International Inc is a nuclear fuel cycle consulting and technology company that provides services to more than 200 customers, including leading nuclear utilities, supplier companies, governments, agencies, and the investment and financial communities.

NAC specializes in nuclear materials transport, spent fuel storage and transport technologies, nuclear fuel cycle consulting, and fuel cycle information services. NAC also provides fuel procurement and performance evaluations, and regulatory and communications planning.

The company was founded in 1968 and its headquarters are in Peachtree Corners, a suburb of Atlanta, Georgia. NAC gained early recognition for its pioneering nuclear market information services and used fuel storage cask design and licensing.

  • International deployment of transportable storage systems – including to Zion, the largest dry storage used nuclear fuel project for a U.S. decommissioned plant
  • Development of MAGNASTOR®, the highest spent fuel assembly capacity and most efficient transportable storage technology in the United States.
  • Major U.S. Department of Energy projects, including securing plutonium-bearing fuel at the BN-350 reactor in Kazakhstan, spent fuel stabilization in North Korea involving loading of 800 sealed canisters, removing highly enriched uranium fuel from Iraq after the Gulf War, and retrieving highly enriched nuclear fuel from foreign research reactors to the United States.
  • Contractor for major U.S. Department of Energy design, engineering and fabrication programs, including at Hanford, Savannah River Site and Oak Ridge.
  • Design, licensing, and fabrication of more than 500 transportable used fuel storage systems, the LWT truck transport casks, and the STC dual purpose rail transport casks.
  • Specialized cask services for the DOE, including design of a unique transport cask for Californium and support for recertification of the Paducah Tiger UF6 transport overpack, including drop test analysis.
  • Proven experience in commercial and government nuclear material safeguards management.
  • A key member of the Consolidated Interim Storage Industry initiative with Interim Storage Partners, in Andrews, Texas.




Bob Helfrich

Senior Vice President, and Corporate Secretary and General Counsel of NAC International

Brad Greene

Vice President of Quality Assurance

Doug Jacobs

Vice President of Projects

George Carver

Vice President, Engineering and Licensing

George Vaughan

Vice President of Business Development

Holger Pfeifer

Manager of Nuclear Analysis

Jamie Adam

Senior Vice President of Site and Transportation Services

Jay Wellwood

Manager of System Operations

Jeff England

Director of Transportation and Packaging Solutions

Juan Subiry

Vice President of Market and Product Strategy

Keith Brookshire

Vice President, Finance and Administration, and Treasurer

Laura Piscetta

Director of Human Resources

Mike McMahon

Vice President of Consulting

Mike Yaksh

Manager of Applied Mechanics Engineering Design

Steve Sisley

Manager of Cask Development Projects

Further reading


Documentaries, videos and podcasts





Golden logo
Text is available under the Creative Commons Attribution-ShareAlike 4.0; additional terms apply. By using this site, you agree to our Terms & Conditions.