Leadership Team

Brief profiles of Oak Ridge National Laboratory’s Leadership Team members are linked to each member’s name. For more information about ORNL management, please contact us at [email protected].

Stephen Streiffer

Laboratory Director

Susan Hubbard

Deputy for Science and Technology

Ann Weaver

Deputy for Operations

Brian Arrington

Chief Human Resources Officer

Portrait of Raynor Buckley, Federal Affairs Director at Oak Ridge National Laboratory, standing and facing the camera.

Raynor Buckley

Federal Affairs Director

Jeremy Busby

Associate Laboratory Director, Isotope Science and Engineering

Budhu L Bhaduri

Chief Data Officer

Katherine Evans, director of BESSD

Kate Evans

Associate Laboratory Director, Biological and Environmental Systems Science

Kevin Freudenberg

Interim Director, US ITER Project

Photo of John Gearhart

John Gearhart

Director, Environment, Safety, Health, and Quality

Joe Hoagland

Associate Laboratory Director, Fusion and Fission Energy and Science

Cynthia Jenks

Associate Laboratory Director, Physical Sciences

David Keim

Chief Communications Officer

Image of Moe Khaleel

Moe Khaleel

Associate Laboratory Director, National Security Sciences

Photo of David Mandl

David Mandl

General Counsel

Headshot of Graeme Murdoch

Graeme Murdoch

Director, Neutron Upgrades Project Office

Andrew Petzold

Chief Financial Officer

Photo of Fred Pieper

Fred Pieper

Chief Audit Executive and Director, Internal Audit

Photo of Jim Serafin

Jim Serafin

Director, Facilities and Operations

Photo of Jon Taylor

Jon Taylor

Associate Laboratory Director, Neutron Sciences

Photo of Kris Torgerson

Kris Torgerson

Director, Information Technology Services

Photo of Gina Tourassi

Gina Tourassi

Associate Laboratory Director, Computing and Computational Sciences

Photo of Lindsey Twardy

Lindsey Twardy

Chief of Staff

Photo of Robert M Wagner

Robert M Wagner

Associate Laboratory Director, Energy Science and Technology