# Nano Nuclear Energy Nano Nuclear Energy is an Asset Manager based in New York, United States. ## Overview - **Organization type:** Asset Manager - **Headquarters:** New York, United States - **Region:** North America - **Address:** New York, NY, United States - **Assets under management:** Undisclosed - **Website:** nanonuclearenergy.com - **LinkedIn:** https://www.linkedin.com/company/nano-nuclear-energy-inc ## Regulatory record - **Reports private funds:** No ## About Nano Nuclear emerged as a publicly traded developer aiming to commercialize micro-small modular reactors for distributed power markets. Led by CTO Florent Heidet at the technical level and supported by reactor design head Massimiliano Fratoni at UC Berkeley, the firm bills its engineering team as the core of its value proposition. It operates four subsidiaries that cover the fuel cycle — Advanced Fuel Transportation, HALEU Energy Fuel, Nano Nuclear Space, and a consulting arm — making it an attempt to vertically integrate nuclear deployment from ore transport through to space applications. Investment posture is concentrated in physical nuclear infrastructure technologies rather than financial assets. The flagship KRONOS MMR Energy System, a stationary high-temperature gas-cooled reactor, entered formal NRC licensing in 2024 after the Construction Permit Application was accepted for review at the University of Illinois Urbana-Champaign site. The ZEUS solid-core battery reactor and the portable LOKI MMR round out the reactor portfolio. On the fuel side, Advanced Fuel Transportation holds an exclusive license to a high-capacity HALEU transport basket developed at three national laboratories with DOE funding, positioning it for contracted fuel movements with advanced reactor developers and military programs. The firm’s scale remains early-stage — no disclosed AUM or deployment figures exist, consistent with a pre-revenue development platform. A May 2025 milestone added operational heft: the acquired subsidiary Secured Transportation Services completed three DOE and NNSA-aligned missions, including a Japan HALEU transfer and a Venezuela HEU removal, bringing more than 20 years of nuclear logistics experience onto the balance sheet. The parent company lists on the Nasdaq under ticker NNE and cites no outside equity backers in public materials, describing itself instead as the first nuclear microreactor company to go public in the U.S. Where most microreactor startups are private, Nano Nuclear's public-company structure changes the disclosure, regulatory scrutiny, and capital-access profile entirely. Its architecture turns a single-technology bet into a multi-line bet on reactor design, fuel fabrication, and fuel transport — each with separate licensing and revenue paths. The space subsidiary, meanwhile, extends the hardware thesis to cis-lunar power and propulsion, a commercial framing that few peer firms have attempted to articulate alongside terrestrial deployments. ## Sectors - Energy Transition & Renewables - SpaceTech - Infrastructure - Industrial Tech ## People - Florent Heidet — Chief Technology Officer and Head of Reactor Development - Massimiliano Fratoni — Senior Director and Head of Reactor Design ## Questions ### Is Nano Nuclear structured as a pure-play reactor developer or something broader? The company structures itself as a vertically integrated nuclear energy platform, not just a reactor designer. Beyond three microreactor designs under development, it owns subsidiaries for HALEU fuel fabrication, nuclear fuel transportation, and space-based reactor applications, plus a consulting arm. Each vertical has its own revenue and licensing path, with the fuel transportation subsidiary already completing operational missions. ### Who runs technical decision-making at Nano Nuclear? CTO Florent Heidet, formerly of Argonne National Laboratory and with two decades in advanced reactor engineering, serves as the key technical leader. Massimiliano Fratoni, who chairs the nuclear engineering department at UC Berkeley, holds the senior reactor design role. The firm has not publicly named a CEO distinct from its technical leadership in its materials. ### What is the regulatory status of the KRONOS MMR reactor? The U.S. Nuclear Regulatory Commission formally accepted the Construction Permit Application for the KRONOS MMR Energy System for review, with deployment planned at the University of Illinois Urbana-Champaign. This places the reactor in the formal licensing queue, a step beyond the pre-application consultations most competitors are in. ## Related profiles - [Interlock Capital](https://altss.com/profile/interlock-capital) --- Last updated: 2026-06-03T20:00:00.000Z Canonical page: https://altss.com/profile/nano-nuclear-energy-inc Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology