Directory

Compact 1MW gas turbine, pickup-truck sized, built from fewer than 40 parts; pre-revenue and operating in stealth.

AI-native factory automation layer that connects machines, software, and paperwork on the factory floor.

Develops industrial AI robots trained on factory data; spun out of Rivian.

AI-powered aluminum distributor offering instant quotes and next-day delivery with automated cutting capabilities.

Duckweed-to-ethanol biofuel startup using wastewater feedstock for ethanol conversion. Pre-revenue.

Builds rockets whose upper stages operate as 1 MW orbital data centers, alongside a LEO constellation for space-based solar power; rebranded from Aetherflux in May 2026.

Manufactures power transformers and switchgear, addressing an acute US shortage of both.

HALEU (high-assay low-enriched uranium) enrichment company positioned to break Russia's monopoly on HALEU supply.

Builds general-purpose AI foundation models (pi0) intended to let robots perform physical tasks.

Vertically integrated developer manufacturing a proprietary kit-of-parts for row houses at its own Austin factory, designed for mass production and rapid on-site assembly.

Vertically integrated residential battery storage and power company.

Develops mass-manufactured hypersonic missiles.

Underground pressurized water reactor developer using standard LEU; trades as NYSE: FISN.

Mobile water-jet drilling technology for geothermal wells, claimed by the company to cut drilling cost by 80%.

Fusion fuel-cycle company focused on tritium processing.

Builds an AI-powered defense acquisition and contracting platform.

Helium-cooled high-temperature gas reactor developer pursuing a 'gigasite' factory production model.

Combines proprietary design software with assembly-as-a-service to design, procure, and produce wire harnesses for aerospace, defense, automotive, and industrial customers.

Factory-built 10MWe sodium-cooled microreactor designed for AI data center power.

Provides space communications infrastructure: laser terminals and satellite mesh network orchestration software.

Microreactor developer for land, sea, and space applications.

Mass-produces standardized satellite bus platforms.

Full-stack edge computing company building modular data centers with Starlink connectivity for defense and energy customers.

Builds robotic micro-factories for timber housing, in partnership with ABB.

Builds AI-native collaborative robots (cobots) for logistics and manufacturing environments.

Nuclear utility trading as NYSE: CEG, leading the restart of the Three Mile Island plant.

Solid-state transformers for AI data centers, EVs, and microgrids.

Fast-chloride molten salt reactor design that burns nuclear waste as fuel.

Battery storage and solar virtual power plant company.

Electrochemical lithium extraction technology for processing lithium from brine.

Carbon-neutral electrolytic process for producing magnesium metal from seawater.

Molten salt carbon capture technology for industrial plants.

Builds autonomous unmanned surface vessels for the US Navy.

Passive direct air capture technology using a solid sorbent, without fans.

Converts cellulosic biomass into ethanol and jet fuel.

Stellarator fusion company using software-driven control.

Builds space security satellites for rendezvous and proximity operations.

Laser inertial fusion company; operates what is described as the world's largest private laser.

Provides thermal storage and Heat-as-a-Service for industrial process heat.

MIT spinout making Joule Hive, conductive firebricks that store and deliver industrial process heat up to 1,800°C.

Thermal battery storing energy in graphite blocks and liquid metal.

Builds autonomous bricklaying robots.

Microreactor IP aggregator listed on NASDAQ (NNE); acquired Ultra Safe Nuclear's assets after its 2024 bankruptcy.

AI-powered software for construction permit application and management.

Cloud-native manufacturing execution system (MES) built for small and mid-sized factories, digitizing processes still tracked on paper.

Orbital mirror satellites that reflect sunlight onto solar farms after dark.

Closed-loop advanced geothermal systems at 100MW scale.

Makes advanced alkaline water electrolyzers for green hydrogen production.

Builds robotic framing systems for home construction.

Low-temperature electrochemical process for producing green iron.

Builds 100MW+ PEM electrolyzers for green hydrogen production at a dedicated gigafactory.

Provides industrial robots to factories on a pay-by-the-hour, robotics-as-a-service basis.

Operates automated precision component manufacturing for aerospace and defense customers.

Produces electrofuels from waste CO2 and green hydrogen.

20MWe pressurized water microreactor using standard low-enriched uranium (LEU), avoiding HALEU dependency.

Manufactures LFP and dual-chemistry range-extender battery packs.

1MWe portable helium-cooled microreactor, founded by SpaceX alumni.

Builds net-zero modular homes using robotic microfactories.

Makes a heat battery — a thermal storage system for industrial process heat up to 1,500°C.

Develops fully reusable rockets, including both first and second stage.