Amentum Holdings, Inc. AMTM NYSE

Amentum Holdings, Inc. is a mission-critical service provider delivering technology-driven solutions to government and commercial clients. The company operates through two main segments: Critical Mission Solutions, which offers test, training, and operations services for missile defense systems, IT and engineering services for defense and space sectors, and environmental remediation solutions for energy clients; and Cyber & Intelligence, which provides advanced cyber training, data analytics, communication systems, and aerial mapping technologies for U.S. national security and defense clients. Founded in 2019 and headquartered in Chantilly, Virginia, Amentum serves as a trusted partner for highly specialized technical services across defense, intelligence, space, and energy industries.