Last Energy

Last Energy is a full-service developer of 20 MWe micro modular nuclear power plants. By significantly reducing the time and cost of deployment, they are decarbonizing global energy production, increasing access to 24/7 baseload power, and creating a scalable clean energy future for humanity.

Climate and energyDeveloper tools and cloud

Last Energy raised $100M in a Series B+ round announced December 16, 2025, according to techcrunch.com. Investors in that round: Astera Institute.

Raise history

1. September 29, 2026
   First seen by Recent Funding
   via startups.gallery
2. December 16, 2025
   Series B+ · $100M
   AAstera Institute (lead)
   Source: techcrunch.com (startups.gallery listing)

Investors

• AAstera Institute

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Every amount links to the page it came from. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/last-energy.