A world where advanced nuclear reactors and AI datacenters operate together without consuming external cooling water — sited on land availability and workforce, not water access.

Physics first. Every result in our platform is computed from the governing equations, validated against published experimental data, and subjected to independent review. This is the standard the nuclear industry demands, and it is the standard we apply to everything we build.

Nanexa LLC was founded by Dr. David Hearnsberger, a nuclear engineer with 35 years of experience from the U.S. Navy Nuclear Submarine Program to National Labs to advanced reactors. Our engineering platform covers thirteen reactor types, five deployment environments, and six computational domains under the same NQA-1 quality assurance standards used at every operating U.S. nuclear power plant.

Our first commercial product — the NanexaTech Direct-to-Chip Cooling System — eliminates cooling towers, evaporative water consumption, and secondary cooling loops entirely. The same dry air cooling engineering applies to nuclear reactor heat rejection. Zero consumptive water is not an aspiration. It is a validated design.

We build tools that produce engineering deliverables our customers can act on: 3D thermal designs, validated safety analyses, uncertainty-quantified performance reports, and exportable CAD geometry. Our off-takers deploy our designs into real facilities.

Every simulation result is checked against our audit rules and enforced at all times. Every benchmark comparison is archived. Every discrepancy is formally documented and resolved. The platform improves with every validation cycle — not by relaxing standards, but by strengthening the physics.