About
Kadmos Energy Services LLC is a nuclear reactor design and engineering firm focused on deployable, passively safe power. We take a “Home Depot” approach—integrating proven materials and catalog components into an integral, manufacturable plant—so our customers avoid long R&D cycles, bespoke fabrication, and licensing surprises.
We work from first principles and validated methods in neutronics, thermal-hydraulics, structures, and systems engineering to quickly converge from concept to detailed design. Our emphasis is on set-point natural circulation, high availability, and straightforward construction, enabling faster time-to-power for data-center and industrial loads.
Kadmos offers: conceptual and pre-FEED design, safety-basis development, licensing strategy, vendor and supply-chain integration, prototype and test planning, and factory-first packaging to simplify site work. The result is a pragmatic path to clean, reliable baseload with minimal complexity.
Who we are
A cross-disciplinary leadership team spanning reactor systems, manufacturing, testing, and operations.
Dr. Youssef BalloutChief Executive OfficerRead bio →
Prior to founding Kadmos Energy Services LLC, Dr. Youssef Ballout was the Director of Idaho National Laboratory’s (INL’s) Reactor Systems Design & Analysis division. He joined INL in December 2018 as the manager of the Fuel Design and Development Department. Prior to INL, he was the President of Elysium Industries Limited, leading the design and development of a molten chloride salt fast reactor. He also spent twenty-six years at the Naval Nuclear Laboratory (NNL)/Knolls Atomic Power Laboratory working on reactor design, reactor materials, thermal hydraulics, and structural performance. At NNL he managed the Space Structural Materials group with NASA on nuclear propulsion concepts for the Jupiter Icy Moon Orbiter (JIMO) project Prometheus. Over his career he has contributed as an experimentalist and modeler, often both. He has also held engineering and organizational leadership roles. Earlier he taught at the Virginia Military Institute (VMI). He began his studies in Limoges, France, and earned B.S., M.S., and Ph.D. engineering degrees from Wichita State University, Kansas.