Amentum provides advanced engineering, systems engineering and technical services to government and commercial clients in national security, nuclear, environmental and intelligence work, with about 40,000 staff worldwide.
Amentum is a global provider of advanced engineering and technology solutions, delivering critical mission support and specialist expertise in program management, systems engineering and technical services. The company works primarily for government and commercial clients, notably the United States and its allied nations, across national security, defence, intelligence, environmental management and nuclear operations. It was founded in 2020 and employs approximately 40,000 professionals worldwide, drawing on a 117-year legacy of service.
Its work spans full-lifecycle facility programmes, covering design, construction, operations and decommissioning of complex sites. Practice areas include nuclear energy projects, environmental remediation and management, facility decommissioning, intelligence community support, defence technology and critical infrastructure. The firm applies technical excellence and operational discipline to projects in nuclear operations and environmental management.
Operations are worldwide, with a presence in the United States and allied nations. The company describes its focus as delivering safer, smarter and cleaner solutions and results in support of national security and global stability, with accountability across every stage of a programme's life.
