An Israeli startup pursuing ultra-high-density plasma confinement in a device small enough for distributed deployment, with an early customer in the country's national water utility.
nT-Tao Compact Fusion Power, founded by CEO Oded Gour-Lavie along with co-founders Doron Weinfeld and Boaz Weinfeld, is developing a compact magnetic-confinement fusion reactor designed to generate approximately 20 MWe per unit. The company's core claim is a proprietary pulsed-power and magnetic-confinement approach that operates at plasma densities roughly 1,000 times higher than conventional tokamaks or stellarators. If validated, this high-density regime would allow dramatically smaller devices -- small enough, the company argues, for distributed deployment at industrial sites, desalination plants, and data centers.1
The company emerged from stealth in 2022 and has raised approximately $28-34 million across four funding rounds. The $22 million Series A closed in February 2023, led by Delek US, Next Gear Ventures, and Mayer Cars & Trucks Group, with participation from Honda, the Grantham Foundation, J-IMPACT, East Innovate, and OurCrowd. In March 2025 nT-Tao received an additional grant from the Israel Innovation Authority to advance its compact fusion technology, signaling government interest in Israel's emerging fusion sector.3
In April 2026 nT-Tao signed a Memorandum of Understanding with Mekorot, Israel's national water company, to explore establishing a dedicated R&D center and pilot fusion facility for critical water infrastructure. Israel's water system -- one of the most advanced in the world -- is energy-intensive, relying heavily on desalination and long-distance pumping. A compact, distributed fusion source could, in principle, reduce both the carbon footprint and the grid vulnerability of that infrastructure. The partnership marks the first formal link between a fusion startup and a national water utility.4
The 100 eV temperatures reported from the C2-A campaign are far below the multi-keV range needed for net fusion energy, and the company has not yet published peer-reviewed confinement or energy-balance data at its claimed high-density operating point. The rapid assembly-to-plasma timeline on C3 demonstrates engineering agility, but scientific credibility in fusion rests on sustained confinement metrics, not assembly speed. The 20 MWe target per unit is ambitious for a device of this scale. nT-Tao's real near-term value may lie in proving -- or disproving -- whether the ultra-high-density regime can produce meaningful fusion rates in a compact geometry, a question with implications well beyond any single company.5