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OPERATOR · OPERATOR PROFILE · DATA AS OF 2026-06-10

X-energy

Active Private HQ: Rockville, Maryland Founded 2009

Rockville, MD small-modular-reactor and TRISO-fuel developer whose space exposure runs through IX - the Intuitive Machines + X-energy joint venture holding one of NASA's three Fission Surface Power Phase 1 design contracts for the lunar reactor (respecified at 100 kW). Amazon's Climate Pledge Fund anchored its Series C-1; the business is predominantly terrestrial.

49.7
ARI Composite
Moderate Risk
#26 of 56
Peer Rank
Manufacturing cohort
Total Launches
No flights tracked
Estimated valuation
Not disclosed

FINANCIAL HEALTH

49.7
ARI composite · Moderate Risk
Peer rank#26 of 56
Peer groupManufacturing
Data coverage75%

SECTOR POSITION

Rank within sector#26 of 56
Tracked peers56

REGISTRY DATA

Legal nameX Energy, LLC
OwnershipPrivate
HeadquartersRockville, Maryland
CountryUS
Founded2009
AliasesX-energy, X Energy
Key programsXe-100 SMR, TRISO-X fuel, IX joint venture (NASA Fission Surface Power, with Intuitive Machines)
Gov customersDOE, NASA (via IX JV)
Last fundingSeries C-1 $700M + Series D $700M (2025); ~$1.8B+ total
IPO statusPrivate

Source: space_company_registry.json · Operator homepage → · Company release documents the $700M Series C-1 (Feb 2025); NASA FSP Phase 1 award via IX JV per nasa.gov release.

METHODOLOGY

Launch history and subsystem outcomes aggregate from AstraVeris's launch_events table with Wilson 95% lower bounds on success rates. ARI scores come from the 11-factor composite (/finance/methodology/). Constellation counts derive from the live CelesTrak/GCAT object catalog. Gov contracts from USAspending.gov awards; private deals from deduplicated pipeline deal extraction. Absence of a row means "not tracked" — we never fabricate. See /methodology/ for the full data model and /data-licensing/ for licensing terms.

Not investment advice. For insurance underwriting, verify against primary-source filings and operator investigation reports.