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Amentum Holdings, Inc. AMTM
$26.80 -$0.40-1.47% NYSE
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Company Overview

Amentum Holdings, Inc. is a U.S.-based engineering, technology, and mission support services company that primarily serves government and defense-related customers. The company operates in the defense, intelligence, energy, environmental, and critical infrastructure sectors, delivering technical solutions that support national security, complex engineering programs, and large-scale government operations. Amentum’s core customers include the U.S. Department of Defense, intelligence agencies, civilian federal agencies, and select allied governments.

The company generates revenue through long-term government contracts focused on program management, systems engineering, logistics, base operations, cybersecurity, and environmental remediation. Amentum positions itself as a provider of end-to-end mission support with deep expertise in classified and regulated environments, emphasizing operational reliability, security clearances, and compliance capabilities that create high barriers to entry. The company traces its origins to AECOM Management Services, which was acquired by private equity firms in 2020 and later merged with PAE Incorporated in 2022, forming the modern Amentum platform. Amentum became a publicly traded company in 2024 under the ticker AMTM.

Business Operations

Amentum operates through integrated business lines that deliver engineering, technical, and operational services across the full lifecycle of government programs. Its primary business activities include engineering and integration, mission support, logistics and sustainment, cyber and intelligence solutions, and environmental and energy services, with revenue predominantly derived from cost-plus, fixed-price, and time-and-materials government contracts. The company’s operations are largely contract-based, with performance obligations tied to multi-year awards and recompetes.

The company maintains both domestic and international operations, supporting U.S. government missions overseas and allied defense organizations. Amentum controls proprietary methodologies, cleared technical personnel, and specialized facilities rather than consumer-facing products. Key subsidiaries include Amentum Services, Inc. and legacy operating entities from PAE Incorporated, which continue to support classified and expeditionary programs. The company also engages in strategic teaming arrangements with major defense contractors to pursue large-scale government procurements.

Strategic Position & Investments

Amentum’s strategic direction centers on expanding its role as a prime contractor on complex, mission-critical government programs while increasing exposure to higher-margin technical services. Growth initiatives focus on contract wins in cybersecurity, space and intelligence support, energy modernization, and environmental remediation, particularly in areas aligned with U.S. federal spending priorities. The company emphasizes backlog growth, recompete success, and disciplined bidding to support revenue visibility.

The formation of Amentum itself represents the company’s most significant strategic investment, combining the scale and engineering depth of legacy AECOM assets with PAE’s global mission support capabilities. Since the merger, Amentum has continued to invest in digital engineering, advanced analytics, and cyber capabilities rather than large-scale transformative acquisitions. Public disclosures indicate selective tuck-in acquisitions and internal capital investment, though details on smaller transactions are limited in publicly available filings.

Geographic Footprint

Amentum is headquartered in the United States and maintains a broad operational footprint across North America, Europe, the Middle East, and parts of the Asia-Pacific region. Its largest concentration of revenue and personnel is in the United States, reflecting its primary customer base within the federal government and defense agencies.

Internationally, the company supports overseas military installations, diplomatic facilities, and allied government programs, often operating in austere or high-security environments. Amentum’s global presence is driven by contract requirements rather than commercial market expansion, with international operations closely tied to U.S. and allied government missions.

Leadership & Governance

Amentum is led by an executive team with extensive experience in government services, defense contracting, and large-scale program execution. The leadership emphasizes operational discipline, customer mission focus, and compliance-driven growth as core elements of its governance and strategic vision.

Key executives include:

  • John HellerChief Executive Officer
  • Tom WalshChief Financial Officer
  • Mark WalterChief Operating Officer
  • Jennifer FelixGeneral Counsel and Chief Compliance Officer
  • Mike SmithChief Human Resources Officer

The company operates under a board-governed structure typical of publicly traded government contractors, with oversight focused on risk management, regulatory compliance, capital allocation, and long-term shareholder value creation.

Data complied by narrative technology. May contain errors

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