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Inertia

Inertia is a commercial fusion energy company that aims to create limitless energy with proven fusion science.

Latest funding

$450M Series A ·

Led by Bessemer Venture Partners · Source: fundraisingfox.com

Funding history ↓
Website: inertia.com.
LinkedIn: inertia-fusion.
Sectors: Clean Energy, Energy, Energy Management, Mechanical Engineering, Nuclear.
Stage: Series A.
Based in: Livermore, United States.
Founded: 2025.
Last round: Feb 11, 2026 · 277 days ago.
Headcount: 51–100 employees.
On Recent Funding since: Sep 29, 2026.

Signals

Website registeredOct 23, 1994 (32 years old)
About Inertia

It builds powerful laser systems and mass manufactures fusion fuel targets. Inertia plans to build gigawatt grid-scale plants to generate electricity.

Funding rounds

DateRoundAmountLeadSource
Series A$450MBBessemer Venture Partnersfundraisingfox.com

Timeline

  1. Website created

Founders and team

Investors

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Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/inertia (get a free API key).

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