Last Energy

HQ: Washington, DC, USACEO: Bret KugelmassHeadcount: 100+www.lastenergy.com ↗

Funding Summary

Total Funding

$100M+ Series C (Dec 2025)

About

Mass-manufactured PWR microreactors. 80+ European commercial agreements, half for data centers. 30 Texas microreactors. UK: 4 units in South Wales. PWR-5 pilot at Texas A&M RELLIS.

Reactor Programs

PWR-20

pre licensing20 MWe · pwr

20 MWe mass-manufactured plug-and-play microreactor. 80+ commercial agreements i...

PWR-5

in development5 MWe · pwr

5 MWe pilot reactor for demonstration at Texas A&M RELLIS campus. Joined DOE Rea...

Recent Developments

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