13 companies · 11 sourced backers · 76 milestones on record
This frontier covers new nuclear fission reactor designs, including small modular plants, portable microreactors and reactors installed deep underground. Companies aim to turn these designs into approved, operating sources of dependable electricity, make construction repeatable, and secure the fuel supplies needed to support them.
Where the 13 companies stand today, from their profiles and 10-year milestones. Tap a phase to see who is there.
- ▸Securing approval to build and operate reactors
- ▸Proving dependable electricity production in working plants
- ▸Scaling repeatable construction while lowering costs
- ▸Establishing dependable supplies of specialized nuclear fuel
Publicly listed: 9 companies (owned by public shareholders).
- ›Every sourced story on all frontiers, filterable by company and news type
- ›10-year milestone records for each company: demo vs shipped
- ›Explained: plain-words readiness diagrams for real breakthroughs
- ›Signal Trends of 39 frontiers covering 378 companies over time.
- ›The events calendar: launches, approvals and deadlines ahead
- Aalo Atomics
To mass-produce small nuclear plants from a factory and bring the cost of electricity down toward 3 cents per kilowatt-hour.
Lab · backed by Cantos Ventures, Fifty Years
- BWX Technologies
To extend its decades of naval nuclear manufacturing into new advanced reactors — small transportable microreactors for defense and, longer term, commercial …
Everyone · publicly listed
- Centrus Energy
To establish a dependable supply of enriched nuclear fuel, including the fuel needed by advanced reactors.
Everyone · publicly listed
- Constellation Energy
To sustain and expand dependable nuclear electricity supply through its operating fleet and plant projects.
Everyone · publicly listed
- Deep Fission
To make nuclear power practical using reactors installed in deep underground boreholes.
Lab · publicly listed · backed by 8VC, Founders Fund
- Kairos Power
To turn molten-salt-cooled reactor technology into a practical source of electricity.
Trials
- Last Energy
To make small modular nuclear plants practical to build and operate.
Lab · backed by First Round Capital, Gigafund
- Nano Nuclear Energy
To make portable microreactors a practical source of nuclear power, supported by appropriate fuel supply.
Trials · publicly listed
- NuScale Power
To turn its small modular reactor design into operating nuclear-power plants.
Some users · publicly listed
- Oklo
To build, own and operate a fleet of small advanced reactors supplying clean, around-the-clock power.
Lab · publicly listed
- TerraPower
To bring the Natrium advanced-reactor approach into commercial electricity production.
Trials
- Vistra
To operate dependable electricity generation that meets customer demand, including through nuclear assets.
Everyone · publicly listed
- X-energy
To make high-temperature gas-cooled reactors and their fuel a practical commercial energy system.
Trials · publicly listed · backed by Amazon, DOW
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