Amentum is an advanced engineering and technology services firm founded in 2020, drawing on a stated 117-year legacy of service. With a workforce of approximately 40,000 professionals operating worldwide, the company delivers critical mission support to government and commercial clients across national security, defense, intelligence, nuclear operations, and environmental management.
The company's technical work spans the full programme lifecycle - from design and construction through to operations and decommissioning of complex facilities. Its core service lines include programme management, systems engineering, and a range of technical services tailored to demanding operational environments. Amentum also supports nuclear energy projects and provides dedicated services to the intelligence community.
Environmental remediation and environmental management form a distinct part of the business, alongside its defence and national security work. The client base is primarily government-facing, with the firm counting the United States and its allies among those it serves, though it also works with commercial clients across its technical domains.
