Company

Our Story

On an unremarkable Sunday afternoon in August 2021, our Chief Strategy Officer, Debbie Calahan, was co-lead for the National Ignition Facility Ignition Campaign and waiting around. Then, the shot went off. The shot that would change history. Debbie’s lab phone, personal phone, and email exploded. She jumped on a call with her team, and they looked at each other. They had just achieved scientific ignition, a goal they had been trying to achieve their whole careers, and now it happened. In that moment as the shock, awe, and slow realization began to spread, Debbie knew two things. She knew the world would never be the same and she had to get a tattoo.

Across the world in Germany, Professor Dr. Markus Roth, a renowned physicist whose work on laser-driven fusion was fundamental to this achievement, and Thomas Forner, an entrepreneur who immediately recognized the importance of this achievement and was committed to bringing affordable, abundant, and clean energy to the world, began meeting. Less than two weeks after Debbie’s team achieved scientific ignition, Tom and Markus announced the launch of Focused Energy, a laser fusion company building on the breakthrough at NIF.

Tom and Markus’ conviction was straightforward: the hard science was done. NIF had proven that fusion ignition was possible. What remained was an engineering problem and engineering problems can be solved. Fusion would be commercialized. The world on the other side of that achievement would be fundamentally different.

Since that fateful day, Tom and Markus grew Focused Energy from just an idea on a piece of paper to the world’s leading laser fusion company with 150+ of the foremost scientific and engineering minds from around the globe. Debbie soon joined and got that tattoo, commemorating scientific ignition. We are now trying to convince her and Markus to get a tattoo of the first laser fusion plant when we begin bringing fusion energy to the grid.

Team

World-class expertise across the full fusion energy ecosystem

The top scientific and engineering minds using proven technologies to unlock fusion power at commercial scale.

Thomas Forner

Co-Founder & CEO

20+ years experience as CEO/CFO and an expert in developing & leading international high-tech companies.

Markus Roth

Prof. Dr. Markus Roth

Co-Founder & CSO

Professor at TU Darmstadt and an APS Fellow with 25+ years experience in fusion research.

Chris Wendel

President & CFO

Over 20 years in investment banking and 10 years in energy startups, with extensive expertise in finance and entrepreneurship driving growth in dynamic industries.

Decker Gentili

COO

20+ years experience founding, supporting & scaling teams from the U.S. Army, first-in-kind non-profits, to renowned venture funds.

Omar Biabani

CTO

20+ years of experience architecting, scaling & commercializing complex hardware, physics, laser & software systems across advanced manufacturing and precision engineering domains.

Debbie Callahan

Dr. Debbie Callahan

Chief Strategy Officer

With 35 years at LLNL, served as Co-Leader of the NIF Ignition Campaign and leader of the ICF Design Physics Division, playing a pivotal role in advancing fusion research and design.

Gilles Chériaux

Laser R&D Lead

Expert in high-energy laser design and developed IP for FE liquid-cooled amplifier lasers.

Wolfgang Theobald

Prof. Dr. Wolfgang Theobald

Experimental Lead

With 19 years at LLE, served as Experiments Group Leader and Fast Ignition and Shock Ignition Program Leader. Recipient of the prestigious Landau & Spitzer Award.

Stefano Atzeni

Prof. Dr. Stefano Atzeni

IFE Theory Lead

A world-renowned theoretical expert on Inertial Confinement Fusion, and author of the leading book on the subject. A former professor at the University of Rome.

Jose Manuel Perlado

Dr. Jose Manuel Perlado

Reactor Design Lead

A professor and Director of the Instituto de Fusión Nuclear at Polytechnic University of Madrid, Spain, former reactor chamber design lead for the HiPER project, and a world expert in fusion materials and chamber design.

Dr. Gabriel Schaumann

Targetry Lead

Built one of Europe’s leading laser fusion targetry laboratories at TU Darmstadt University.

Adrian McFarland

Engineering Lead

Extensive expertise in fusion engineering and system integration. Former Head of Electrical Engineering at Tokamak Energy.

Our Commercial Partners

Hessen

Technische Universität Darmstadt

RWE

TRUMPF

SCHOTT

Amplitude

Heraeus

GSI

ADL

KYOTO Fusioneering

Siemens Energy

ZEISS

Biblis LoI Group

University of Rochester Laboratory for Laser Energetics

Awards & Recognition

U.S. Department of Energy

Milestone-Based Fusion Development Program One of eight companies selected globally for DOE's flagship program to commercialize fusion energy.

U.S. Department of Energy

INFUSE Program Multiple awards enabling direct collaboration with America's national laboratories, the same institutions where fusion ignition was first achieved. Our work spans laser-plasma interaction, target physics, and the core scientific challenges on the path to a commercial power plant.

SPRIND

Germany's Federal Agency for Disruptive Innovation €50 million awarded to build critical laser fusion infrastructure. One of the largest single public investments in laser fusion anywhere in the world.

State of Hesse

Germany €20 million in direct state funding to advance fusion technology and anchor what Hesse is building as a European fusion hub — with Focused Energy at its center.

Our Facilities

Darmstadt, Germany

Targetry & Laser Laboratory

FELD: Our flagship laboratory in Darmstadt is home to Focused Energy’s world leading targetry and laser development capabilities. The facility spans approximately 1,600 square meters and was purpose built to support precision fabrication, assembly, and testing of fusion fuel targets and related laser subsystems.

It serves as a core site for experimental work underpinning our laser driven fusion architecture. Backed by strong support from the State of Hesse and the broader region, Darmstadt is where the science becomes real.

Biblis, Germany

Fusion Campus

Planned & Under Development. Biblis is where the future takes shape.

Focused Energy is in the construction phase for a multi-stage Fusion Campus designed to scale from early experimentation to commercial power generation: hosting an Integrated Test Facility, a Fusion Pilot Plant, and ultimately a first-of-its-kind fusion power plant

Austin, Texas

Target Tracking & Engagement Facility

Focused Energy’s Austin facility focuses on target tracking, engagement, and related systems engineering. Opened in early 2026, the site comprises approximately 30,600 square feet and includes two clean rooms to support advanced optical and laser adjacent work.

The Austin facility also serves as a U.S. hub for collaboration, testing, and program execution.

The Future is Fusion

Unlocking civilization's next great chapter of growth

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