US-based Stellios Technologies has emerged from stealth with $5 million in oversubscribed pre-seed funding. The company develops advanced power and energy technologies, including high-power microwave systems, directed-energy solutions, compact fusion and next-generation propulsion.
The funding round included investments from Shervin Pishevar’s Sofreh Capital, Wave Function Ventures, Cubit Capital, Mana Ventures, Atoms & Bits, Output Capital, Erik Bruckner and other strategic investors.
“Stellios is on a mission to ensure that the United States dominates the next generation of high-energy power systems,” said Dr. Richard Starson, founder and CEO of Stellios Technologies. “The ability to generate, deliver, and harness extreme levels of power will be critical to American technological and military leadership in the 21st century. From counter-drone defense and directed energy to advanced propulsion, compact fusion, and grid-scale power, the future will belong to nations that lead in power systems. Now is the time to rebuild that capability in America, addressing urgent defense needs today while laying the foundation for compact fusion and entirely new propulsion systems for supersonic, hypersonic, and space flight.”
“The United States pioneered high-power microwave technology, and we must lead its next generation,” said Dr. Edl Schamiloglu, Distinguished Professor of Electrical and Computer Engineering at the University of New Mexico and advisor to Stellios. “Rebuilding this capability in America is critical to national security and industrial leadership. Stellios is combining advanced vacuum electronics, modern power systems, controls, and manufacturing to advance HPM today while laying the foundation for compact fusion power and fusion-powered propulsion.”
“At Cubit Capital, we look for founders with firsthand knowledge of a critical problem, the technical experience to address it, and early customer traction,” said Philip Carson, Partner at Cubit Capital. “Stellios brings all three. With signed customer purchase orders, ongoing defense customer discussions, and plans for US-based manufacturing, the company is building a commercially grounded business with the potential to strengthen American and allied defenses and lay the foundation for compact fusion power and advanced propulsion.”
Founded in 2026 by CEO Dr. Richard Starson, Stellios Technologies develops advanced power systems for defence and industrial use. Its technologies include high-power microwave systems, klystrons, gyrotrons and integrated power solutions. The company is also working on Stellios Core, a compact fusion programme designed to explore aneutronic fusion.
Stellios combines advanced electronics, high-voltage power systems and control technology with Stellios Genesis, an AI-powered engineering platform that uses digital twins to help design, test and improve its systems.
