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Radiant secures strategic investment from Lockheed Martin, oversubscribing their funding round aimed at advancing portable nuclear microreactors.

PRIVATEFeb 17, 2026

Round Type

Corporate Round

El SegundoManufacturingEnergyRenewable Energy

Investors

Lockheed Martin

Description

Radiant, specializing in portable nuclear microreactors, announced a strategic investment from Lockheed Martin. This investment reflects increasing confidence in Radiant's commercialization plan and its innovative technology. The oversubscribed round indicates strong market validation of Radiant's Kaleidos microreactor. The partnership with Lockheed Martin adds significant defense and technology expertise to Radiant's investor coalition.

Who else raised in Energy and Renewable Energy around the same time

Companies in the same sectors as Radiant that raised within 45 days of this round, from Fundz verified event records.

  • Capstone Energy Plus, Inc. raised $113M (Corporate Round) on March 30, 2026.
  • pH7 Technologies raised $3.2M (Grant) on March 24, 2026.
  • AmpliSi raised $2.7M (Pre-Seed) on March 17, 2026.
  • RIFT raised $97M (Series B) on March 3, 2026.
  • Birchtech raised $13M (Post-IPO Equity) on February 27, 2026.
  • SHINE raised $240M (Funding Round) on February 26, 2026.

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Company Information

Company

Radiant

Location

1921 E. MAPLE AVENUE

El Segundo, California, United States

About

Radiant is building the world’s first mass-produced portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1 MW failsafe microreactor that can be transported anywhere power is needed. Founded in 2020, Radiant plans to test its first reactor in 2026, with initial customer deployments beginning in 2028.

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2 contacts
Verified contactsChad M., Vice President, Head of Talent hidden hiddenSee plans and pricing
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