State-of-the-art Hub, featuring a Next-Gen Technology Showcase, to Open in 2027

Amentum (NYSE: AMTM), a global leader in advanced engineering and technology solutions, will open a new worldwide headquarters in Reston, Virginia in early 2027.

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The company has signed a 45,000-square-foot lease at 1900 Reston Metro Plaza located in the heart of Reston Station’s Metro Plaza District. The LEED-Gold certified building designed by world-renowned architect Helmut Jahn, is a sixteen-story office tower with immediate access to Metro’s Silver Line with exceptional connectivity across the Washington, D.C. region.

"Amentum’s investment in our new Northern Virginia hub at Reston Station reflects the expanding opportunities of our company and where we are headed,” said Amentum’s chief operating officer, Steve Arnette. “This modern headquarters, featuring a next-generation Technology Showcase, will bring our teams together and serve as a destination for customers, employees, and partners to experience our advanced engineering and technology solutions firsthand. Ultimately, the new headquarters strengthens our ability to deliver integrated solutions aligned with global demand and government priorities, including across our accelerating growth markets of global nuclear energy, space systems & technology, and critical digital infrastructure.”

“The new Reston Station hub will position Amentum at the center of one of the most dynamic innovation corridors in the world,” said the company’s chief people officer, Darren Burton. “The state-of-the-art headquarters reflects the innovative, solution driven culture of our company. It is designed to provide a collaborative environment for our workforce while reinforcing our reputation as a trusted advanced engineering partner dedicated to solving the most pressing challenges across science, security, and sustainability.”

Amentum’s new headquarters will enhance the company’s employee experience while simultaneously streamlining operating costs.

Amentum will relocate to the new Northern Virginia hub from its current headquarters in Chantilly, Virginia.

About Amentum

Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents.

Visit us at www.amentum.com to learn how we advance the future together.

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Forward-Looking Statements

This press release contains or incorporates by reference statements by Amentum Holdings, Inc. (the “Company”) that relate to future events and expectations and, as such, constitute “forward-looking statements” as that term is defined in the Private Securities Litigation Reform Act of 1995 and other federal securities laws. These forward-looking statements may be characterized by terminology such as “believe,” “project,” “expect,” “anticipate,” “estimate,” “forecast,” “outlook,” “target,” “endeavor,” “seek,” “predict,” “intend,” “strategy,” “plan,” “may,” “could,” “should,” “will,” “would,” “will be,” “will continue,” “will likely result,” or the negative thereof or variations thereon or similar terminology generally intended to identify forward-looking statements. All statements, other than historical facts, including, but not limited to, statements regarding the anticipated work and revenue under the awarded contract, and the Company’s objectives, expectations and intentions, applicable legal, economic and regulatory conditions, and any assumptions underlying any of the foregoing, are forward-looking statements.

A number of important factors could cause actual results to differ materially from those contained in or implied by these forward-looking statements, including those factors discussed in our filings with the Securities and Exchange Commission (SEC), including, among others: the occurrence of an accident or safety incident; the ability of the Company to control costs, meet performance requirements or contractual schedules; and other factors set forth under Item 1A, Risk Factors in our Annual Report on Form 10-K for the fiscal year ended September 27, 2024, which can be found at the SEC’s website at www.sec.gov or the Investor Relations portion of our website at www.amentum.com. Any forward-looking statement speaks only as of the date on which it is made, and the Company assumes no obligation to update or revise such statement, whether as a result of new information, future events or otherwise, except as required by applicable law.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260219897001/en/

“This modern headquarters, featuring a next-generation Technology Showcase, will bring our teams together and serve as a destination for customers, employees, and partners to experience our advanced engineering and technology solutions firsthand."