Aalo Atomics

Company US Private Editorial profile Funding raised: $133M Website

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Profile

Sodium-cooled modular microreactor (Aalo-1/XMR) purpose-built for data centers.

Editorial profile — compiled by us from public sources.

Founded: 2023
Headquarters: Austin, TX, US
Funding raised: $133M

Current standings

Standings and milestones are always verified by us against primary sources, regardless of who manages the profile.

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Roadmap & milestones

Aalo-X cleared to start up — DOE authorizes criticality testing

2026-06

Aalo Atomics / US DOE

US Energy Secretary Chris Wright signed authorization (25 Jun 2026, at Idaho National Laboratory) for Aalo Atomics to proceed with criticality testing of its Aalo-X critical test reactor under the DOE Reactor Pilot Program (EO 14301) — following DSA approval and an operational readiness review. The signed go-ahead is the milestone; criticality itself was expected within days (July 4 program target). Aalo-X tests the full core for the ~10 MWe Aalo-1 design.

Press release · 2026-06

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