Understand any stock in simple English
Enter a ticker to learn what the company does and how it makes money.
Amentum Holdings, Inc.
Amentum is a government services contractor that provides engineering, technology, and environmental support to U.S. and allied agencies.
Amentum is a company that does the practical, complicated work behind government operations. Think of the people who maintain military bases, run testing ranges, manage nuclear cleanup sites, and keep complex technology systems working. Amentum provides the engineers, technicians, and project managers for that kind of work, serving U.S. government agencies, allied governments, and some commercial clients.
The company was formed by the 2024 merger of Amentum and Jacobs Solutions' critical mission solutions business, creating one of the largest government services firms of its kind. Its revenue comes mostly from long-term contracts with agencies like the Department of Defense and the Department of Energy, where it handles everything from facilities maintenance to environmental remediation to digital modernization. The business model is essentially outsourcing for the government. Agencies need specialized expertise for a project or a facility, and instead of hiring thousands of people themselves, they sign multi-year contracts with firms like Amentum. Competitors include other large government services contractors such as Leidos and CACI International.
Government services is a steady but low-margin business. Contracts are typically cost-plus or fixed-fee, which means revenues are predictable but profits are thin. The company's scale matters because big contracts require the resources to staff large operations, and past performance on one contract helps win the next. Amentum faces risks from changing government budgets and political priorities, but its position as a major provider of mission-critical support gives it a durable foothold.
Saved answer · last researched 14 Nov 2026