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Amentum Holdings, Inc. (AMTM) is a manufacturing and production company in the additional military equipment production industry, based in Chantilly, United States, with about 50,000 full-time employees.
It reported revenue of $14.39 billion for fiscal year 2025, up 71.6% from fiscal year 2024, and net income of $66.00 million. In Q3 2026 (the quarter ended June 30, 2026) revenue was $3.49 billion, down 2.0% from a year before. Its largest business segment, Global Engineering Solutions, brought in 61% of segment revenue in fiscal year 2025; United States was the largest region with 75%. Its market capitalization was $4.72 billion as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended September 30, 2025; market data as of October 9, 2026.
Amentum Holdings, Inc. engages in the provision of engineering and technology solutions in the United States and internationally. It operates through two segments, Digital Solutions and Global Engineering Solutions.
Amentum reported $14.39 billion in revenue for fiscal year 2025, up 71.6% from $8.39 billion in fiscal year 2024. In Q3 2026 revenue was $3.49 billion.
Global Engineering Solutions, with $8.85 billion or 61% of segment revenue in fiscal year 2025. Next: Digital Solutions Consulting) (39%).
United States: 75% of revenue by region in fiscal year 2025, followed by International (25%).
$4.72 billion as of October 9, 2026.
Listed companies of a similar size in the same industry (additional military equipment production) include AeroVironment, Inc. (AVAV), Science Applications International Corporation (SAIC), Mercury Systems, Inc. (MRCY), Kbr, Inc. (KBR).