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Total funding raised, top 12 fission startups

DealroomOctober 2026
Total funding raised, top 12 fission startups
Chart by Dealroom. Source: dealroom.co

A horizontal bar chart ranking the top 12 nuclear fission startups globally by total funding raised. X-energy leads with $1.7B raised, followed by TerraPower with $1.6B.

LabelValue shown on the chart
X-energy$1.7B
TerraPower$1.6B
Valar Atomics$1.5B
SHINE Technologies$1.1B
Newcleo$938M
Antares$632M
Radiant Industries$622M
NuScale Power$446M
Atlas Atomics$400M
Blue Energy$235M
CORE-POWER$219M
Standard Nuclear$182M

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