We are a team of innovators and experts obsessed with turning potential into reality.
Xcimer exists to realize the promise of fusion for all
Founded in 2022, and based in Denver, CO with offices in Redwood City, CA, Xcimer Energy is backed by the world’s leading climate investors including Hedosophia Investments, Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures, Emerson Collective, Starlight Ventures, Wireframe Ventures, and Gigascale Capital.
With the support of our investors and team of partners and collaborators throughout the world, we are taking steps to ensure a safe and abundant future for humanity and the earth.
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Working in inertial fusion since 2009, with deep expertise in radiation hydrodynamics and laser system architecture—bridging the disciplines essential to ignition and commercial inertial fusion energy.
MIT Physics and Nuclear Engineering
Conner Galloway
CEO, Founder -
Early-stage, innovative technology startups since 2002 in industries ranging from fusion to healthcare to AI.
MIT EECS
Alexander Valys
President, Founder -
25-year career building and scaling engineering teams including 12 years at Blue Origin leading engineering for the New Shepherd program.
Giovanni Greco
SVP, Engineering -
Engineering and managing fusion projects for over 25 years, including 15 years at NIF and 5 years at ITER. Member of FESAC and Chair of the FPA Board.
Nuclear Engineering, UNED
Susana Reyes, Ph.D.
VP Chamber and Plant Design -
Over 15 years of experience running operations in advanced technology fields including semiconductor lithography.
Brent Gill
Chief Operating Officer -
Over 40 years experience in pulsed power engineering, including leading design and delivery of the pulsed power for the Electra program at NRL.
Doug Weidenheimer
Director of Pulsed Power -
Broad entrepreneurial and scientific background in optical physics, with areas of expertise including UV optical coatings and excimer gas discharge technologies.
University of Illinois, Electrical Engineering
Cyrus Herring, Ph.D.
Director of Laser Engineering -
Over 15 years of experience in high-power laser and spectroscopic experiments, with extensive expertise in gas laser kinetics, deep UV sources, spectroscopy, microfabrication, and thin films.
Andrey Mironov, Ph.D
Director of Experimental Science -
Over 20 years experience in large scale precision optical systems. Optical design, integration, and characterization of advanced telescopes and pointing systems.
University of Arizona, Optical Science
Dennis Douglas, Ph.D.
Director of Optics -
Seasoned talent acquisition leader with expertise in recruiting and staffing technical talent for high-growth technology companies including Blue Origin and Meta Reality Labs.
Dan Bauer
Head of Talent -
Designing and interpreting laser driven implosion experiments for over ten years.
University of Michigan - Nuclear Engineering
University of Rochester - LLE
Alison Christopherson, Ph.D
Head of Target Design -
Over 15 years of performing diverse legal and compliance roles supporting product engineering, research and development, manufacturing, infrastructure buildout, supply-chain, and commercial transactions.
University of Florida, Materials Science & Engineering, Juris Doctor
Gary Sobolevskiy
General Counsel
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Bedros Afeyan, Ph.D.
Technical Advisory Board -
Paul Hoff, Ph.D.
Technical Advisory Board -
William Krupke, Ph.D.
Technical Advisory Board -
Joseph Mangano, Ph.D.
Technical Advisory Board -
Tom Mehlhorn, Ph.D.
Technical Advisory Board -
Allen Offenberger, Ph.D.
Technical Advisory Board -
Michael Tobin
Technical Advisory Board -
J. Gary Eden, Ph.D.
Technical Advisory Board
ADVISORY BOARD
Bedros Afeyan, Ph.D.
Expert in Laser-Plasma Interaction and Inertial Confinement Fusion
Paul Hoff, Ph.D.
Specialist in High-Energy Physics and Advanced Laser Systems
William Krupke, Ph.D.
Renowned Physicist in Laser Technology and Fusion Research
Joseph Mangano, Ph.D.
Nuclear Policy Analyst and Researcher in Public Health and Radiation
Tom Mehlhorn, Ph.D.
Authority in Pulsed Power and High Energy Density Physics
Allen Offenberger, Ph.D.
Plasma Physicist with a Background in Fusion Energy and Academic Leadership
Michael Tobin
Business Leader with Experience in Energy Innovation and Commercialization
SCIENCE AND TECHNOLOGY COUNCIL
Riccardo Betti, Ph.D.
ICF, Implosion Physics
University of Rochester, LLE
Rick Spielman, Ph.D.
Pulsed Power
University of Rochester
Jim Trebes, Ph.D.
National Security, Physics
LLNL (Retired)
George Tynan, Ph.D.
Fusion Reactor Physics
UC San Diego
Mark Kushner, Ph.D.
Plasma Physics, Non-linear Optics
University of Michigan
Javier Garay, Ph.D.
Laser Physics
UC San Diego
Roger Falcone, Ph.D.
Plasma Physics, HEDP, DOE
UC Berkeley (Retired)
Greg Van Dyke, Ph.D.
DOD, Fusion (NWET)
USAF (Retired), Altrusion
David Crandall, Ph.D.
DOD, NNSA, Fusion
DOE, NNSA (Retired)
Bob Smith, Ph.D.
Commercial Technology, Aerospace
Previously Blue Origin, Honeywell
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XEC Locations
- Denver, CO
- Redwood City, CA
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Partner Locations
- Los Alamos National Laboratory (Los Alamos, NM)
- Lawrence Livermore National Laboratory (Livermore, CA)
- Oak Ridge National Laboratory (Oak Ridge, TN)
- Savannah River National Laboratory (Jackson, SC)
- Naval Research Laboratory (Washington, DC)
- Laboratory for Laser Energetics (Rochester, NY)
- Massachusetts Institute of Technology (Cambridge, MA)
- General Atomics (San Diego, CA)
- Westinghouse (Cranberry Township, PA)
- Universidad Nacional de Educacion a Distancia, UNED (Madrid, Spain)
