RTX Partners With and Invests in Xcimer Energy to Develop Advanced Directed Energy Technology

• Companies teaming to explore development of pulsed-laser defense systems

ARLINGTON, Va. & DENVER--(BUSINESS WIRE)--RTX Ventures, the venture capital arm of RTX, has made a minority investment in laser fusion company Xcimer Energy Corporation (XEC) to support Xcimer’s development of scalable multi-kilojoule-class pulsed-laser technologies.

In addition to the investment, RTX and Xcimer have signed a teaming agreement to explore the integration and containerization of Xcimer’s pulsed-laser technologies into RTX’s defense systems, offering the U.S. military potential new directed energy capabilities to defeat airborne threats.

RTX’s investment directly strengthens Xcimer's laser fusion energy roadmap, which the US Department of Energy approved in June. Approval of Xcimer’s fusion pilot power plant design – part of the DOE’s Milestone-based Fusion Development Program – positions Xcimer as the frontrunner in the race to commercialize laser fusion power.

The core challenge in both laser fusion and laser defense is identical: building a laser that fires pulses repeatedly and reliably at a low cost per joule and is also mass-manufacturable, while being maintainable, energy efficient and reliable. The excimer laser system being developed by Xcimer is designed to meet these goals, ultimately delivering longer-range performance and greater effectiveness than current directed energy systems on the market.

“As the United States accelerates the development of next-generation air defense, the need for affordable and scalable directed energy systems has never been more urgent,” said Conner Galloway, co-founder, CEO and Chief Science Officer at Xcimer. “Our excimer-based laser technology offers the performance, speed and inherent scalability needed at a fraction of the cost and complexity of today’s systems. This investment from RTX Ventures will help us accelerate development and prove these advantages in real-world testing.”

Xcimer and RTX will explore the development of systems that combine Xcimer’s laser expertise with RTX’s decades of experience developing combat-proven defense technologies.

"We invest in and partner with companies that have the potential to disrupt the aerospace and defense industry because it spurs innovation and augments our own development efforts,” said RTX Chief Technology Officer Juan de Bedout. "We believe Xcimer’s pulsed-laser technology lines up perfectly with our expertise in areas like advanced sensing, command and control and air defense. Together we will explore how we can best integrate these technologies into advanced, scalable defense systems able to defeat a range of new and evolving threats.”

About Xcimer Energy

Xcimer is building the biggest, brightest, and most powerful lasers to enable commercial fusion energy and transform air defense. Denver-based Xcimer expects to deliver fusion energy to the grid by the mid-2030s. Xcimer has raised nearly $200M from top-tier energy and technology investors, including Hedosophia, Breakthrough Energy Ventures, Lowercarbon Capital, Emerson Collective, Prelude Ventures and many others. Xcimer received the largest laser fusion award from the U.S. Department of Energy’s Milestone-Based Fusion Development Program. Visit xcimer.energy.

About RTX

With more than 180,000 global employees, we push the limits of technology and science to redefine how we connect and protect our world. With industry-leading capabilities, we advance aviation, engineer integrated defense systems for operational success, and develop next-generation technology solutions and manufacturing to help global customers address their most critical challenges. The company, with 2025 sales of more than $88 billion, is headquartered in Arlington, Virginia.