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Last Energy

lastenergy.com ↗
PROCESS SCHEMATIC · NUCLEAR / MICROREACTOR LIVE
Founded
2020
Stage
SERIES C
Raised
$164M
HQ
WASHINGTON, DC
Layer
MANUFACTURING

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

Funding history

RoundAmountDateLead
Series A$20M2020Gigafund
Series B$40M2024-08Gigafund
Series C$100M2025-12Astera Institute
Upstream
standard low-enriched uranium (full core load procured)modular steel plant fabrication
Downstream
data centersindustrial power usersTexas A&M RELLIS pilot site
Related
General MatterStandard NuclearDeep FissionMarathon Fusion

Sources

Last Energy Announces Oversubscribed $100 Million Series C (Business Wire) ↗Nuclear startup Last Energy raises $100M for its steel-encased micro reactor (TechCrunch) ↗Last Energy nabs $40M to realize vision of super-small nuclear reactors (Canary Media) ↗