Nuclear Startup Funding Is Up, But The Sector’s Public Markets Take A Bearish Turn

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Nuclear Startup Funding Is Up, But The Sector’s Public Markets Take A Bearish Turn, according to Crunchbase News. So far in 2026, investors have poured more than $6 billion into companies focused on developing both fission and fusion nuclear energy technology and infrastructure, per Crunchbase data. Funding to nuclear power-focused startups hit an all-time high this year, fueled by expectations of surging energy demand around artificial intelligence.

Optimism around IPO (the sale of a company’s shares to the public on a stock exchange) prospects, however, has taken a hit recently amid weakening public market enthusiasm for the space. Round counts are also holding up at historically high levels, as charted below. Biggest rounds Much of this year’s funding went to a few heavily financed nuclear startups.