Inertia

San Francisco, United States

Inertia is a fusion-energy company that builds and generates commercialized fusion powers.

$450.0M raised

Feb 2026

Series A

19,000+ verified contacts

Emails, phones & LinkedIn profiles

Frequently Asked Questions about Inertia

How much funding has Inertia raised?

Inertia has raised $450.0M in total funding. The most recent round was Series A. The last funding was announced in February 2026.

Where is Inertia headquartered?

Inertia is headquartered in San Francisco, United States.

What does Inertia do?

Inertia is a fusion-energy company that builds and generates commercialized fusion powers.

What stage is Inertia at?

Inertia is at the Series A stage.

Cite this page

Free to use in articles, research, and reference works. Stable URL — will not change. Data on this page last updated February 11, 2026.

MLA

"Inertia — Funding & Investors." VCBacked, February 11, 2026, https://www.vcbacked.co/company/inertia. Accessed June 4, 2026.

APA

VCBacked. (2026). Inertia — Funding & Investors. Retrieved June 4, 2026, from https://www.vcbacked.co/company/inertia

Wikipedia (cite web)

{{cite web |title=Inertia — Funding & Investors |url=https://www.vcbacked.co/company/inertia |website=VCBacked |access-date=June 4, 2026}}

Profile data sourced and verified per the VCBacked methodology. Last funding round dated February 11, 2026.