Science and User Support Building to the left and Arrillaga Science Center building to the right from above the Main Quad at SLAC's campus.
Leading lab mission and vision

Our leadership

SLAC’s leaders have a wealth of experience in managing large scientific projects and organizations, both inside and outside the DOE complex. They determine our path forward, round up funding support and keep the lab running smoothly and safely so we can carry out and expand our scientific mission.

Interactive org chart (PDF) Lab overview

John Sarrao

John Sarrao became SLAC National Accelerator Laboratory’s sixth director in October 2023. The lab’s ~2,000 staff advance the frontiers of science by exploring how the universe works at the biggest, smallest, and fastest scales and invent powerful tools used by...

Headshot of John Sarrao

Executive team

Deputy lab directors

John Connolly

As deputy director for operations and chief operating officer, John Connolly is responsible for ensuring the effective integration and performance of operations functions that...

Headshot of John Connolly

Vitaly Yakimenko

As deputy director for projects and infrastructure, Vitaly oversees the Project Management Office and is responsible for scientific and infrastructure project management and campus...

Vitaly Yakimenko

Alberto Salleo

Alberto is responsible for advancing the lab’s Science & Technology (S&T) Strategy, identifying and realizing opportunities and strengthening the coordination and execution of S&T...

Headshot of Alberto Salleo

Senior leaders

Associate lab directors

Lisa Bonetti

Portrait of Lisa Bonetti, Interim Associate Lab Director, Technology Innovation Directorate

Joshua Frieman

Portrait of Joshua Frieman

Kelly Gaffney

Kelly Gaffney

Paul McIntyre

Portrait of Paul McIntyre, associate lab director, Stanford Synchrotron Radiation Lightsource (SSRL) Directorate

John Schmerge

Portrait of John Schmerge

Chris Tassone

Headshot of Chris Tassone

Chief officers & division directors

Saurabh Anand

Saurabh Anand

Brendan Curran

portrait of Brendan Curran

Ian Evans

Headshot of Ian Evans

Carolyn Nelson

Portrait of Carolyn Nelson, SLAC's chief human resources officer

Katie Roberts

Headshot of Katie Roberts

Jonathan Russell

Headshot of Jonathan Russell

Alberto Salleo

Headshot of Alberto Salleo

Moises Smart

Headshot of Moises Smart

Clay Sumner

Headshot of Clay Sumner

Katherine Puglisi-Chan

Headshot of Katherine Puglisi-Chan
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Image gallery

Leadership around the lab

Lab Director John Sarrao presents to a group of people seated at a table.
Lab Director John Sarrao hosts visitors from Stanford's Council of the School of Humanities and Sciences. (Jacqueline Ramseyer Orrell/SLAC National Accelerator Laboratory)
Panel of speakers discussing domain science challenges at SLAC.
From left: SLAC's Chris Tassone, Peter Dahlberg, Yu Lin and Risa Wechsler address domain science challenges at SLAC at Stanford's "Bridging the Farm: AI for Science at SLAC and Stanford" event. (Jacqueline Ramseyer Orrell/SLAC National Accelerator Laboratory)
LCLS Director Mike Dunne speaks from a podium at FusionXInvest : Global Event.
LCLS Director Mike Dunne speaks at a FusionXInvest:Global event at the Computer History Museum. (Ula Alexandra Lucas/SLAC National Accelerator Laboratory)