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Helion Energy Raises $465 M...

Updated Oct 15, 2026

SOLD

Helion Energy Raises $465 Million In Series G Round At $15.5 Billion Valuation

Building Size

—

Asset Type

—

Closing

Jun 4, 2026

About this deal

AI

Helion Energy has raised $465 million in a Series G round at a $15.5 billion valuation as it progresses towards building its first power plant, Orion, with aims for grid deployment as early as 2028 under an agreement with Microsoft.

Summary of transaction details:

Helion Energy, led by CEO David Kirtley, focuses on advancing its magnetic fusion technology, aiming to generate electricity directly from plasma interactions instead of traditional methods. The company’s significant backing includes investments from various venture capital firms, contributing to its shift from theoretical concepts to practical deployment in energy generation.

Players

Thrive Capital

Helion Energy

Buyer

12 deals

Buyer

David Kirtley

Helion Energy

Seller

1 deal

Seller

Market CRE Market Snapshot

Boundary boundary · CRE · Sale transactions

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Purchase Price

Annual NOI

Loan Amount

Interest Rate (%)

Loan Term (yrs)

Down Payment (%)

Cap Rate

5.80%

Cash-on-Cash

-1.66%

Monthly Payment

$14,164

Annual Debt Svc

$169,964

Annual Cash Flow

$-11,334

DSCR

0.93

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