Fundraising Fox

Critical Energy

5 known investors

Critical Energy is developing modular power plants to provide low-cost, dispatchable clean electricity around the clock. Founded in 2024 by former SpaceX engineers, the company applies aerospace and energy engineering to scaling clean power deployment.

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Founders & leadership

SJSpencer Jackson
Spencer JacksoninFounder & CEO

Investors · 5

Humba Ventures✓ verifiedSan Francisco · $750K
MaC Venture Capital✓ verifiedLos Angeles · $500K – $2M
NosTerra Venture CapitalMenlo Park
Scribble VenturesPortola Valley · $750K – $1.5M
Upfront VenturesLos Angeles · $1M – $10M

In the news

Critical Energy Raises $19M Seed for Geothermal Turbines - Fundraise Insiderfundraiseinsider.com · Jun 2026Critical Energy Raises $22 Million Seed Round To Scale Modular Turbine Power Systemspulse2.com · Jun 2026Critical Energy raises $22M for factory-built geothermalthenextweb.com · Jun 2026Startup Critical Energy raises $19M to build mo... | Pluang – Crypto, Stocks, Gold & Fundspluang.com · Jun 2026SpaceX alum nabs $22M to turn rocket engines into geothermal power plants | TechCrunchtechcrunch.com · Jun 2026Critical Energy Raises $22M to Commercialize Modular Geothermal Plants for AI Data Centers | citybizcitybiz.co · Jun 2026

Frequently asked questions

What does Critical Energy do?
Critical Energy is developing modular power plants to provide low-cost, dispatchable clean electricity around the clock. Founded in 2024 by former SpaceX engineers, the company applies aerospace and energy engineering to scaling clean power deployment.
Who founded Critical Energy?
Critical Energy was founded by Spencer Jackson.
Who are Critical Energy's investors?
Critical Energy's investors include Humba Ventures, MaC Venture Capital, NosTerra Venture Capital, Scribble Ventures, Upfront Ventures.