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Amentum Holdings, Inc.

AMTMIndustrials· Chantilly, VA, United States
LAYOFFS TRACKED
15
LAST EVENT
Aug 25, 2026
MARKET CAP
$5.04B
as of Aug 26, 2026
EMPLOYEES
33,000

Amentum Holdings, Inc. provides engineering and technology solutions to address challenges in science, security, and sustainability. It serves various markets, such as energy and environment, space, intelligence, defense, civilian, commercial, and international markets. The company was incorporated in 2010 and is headquatered in Chantilly, Virginia.

Layoff history

EMPLOYEES AFFECTED PER QUARTER · HOVER FOR DETAILS

Q4 '22Q1 '24Q1 '25Q1 '26Q3 '26

Layoff timeline

15 EVENTS
Aug 25, 2026WARN notice
Pueblo, CO
Jan 26, 2026WARN notice
Pueblo, CO
Dec 1, 2025WARN notice
Pueblo, CO
Oct 31, 2025WARN notice
Pueblo, CO
Sep 30, 2025WARN notice
Pueblo, CO
Aug 25, 2025WARN notice
Pueblo, CO
May 1, 2025WARN notice
Pueblo, CO
Jan 28, 2025WARN notice
Pueblo, CO
Jun 28, 2024WARN notice
Fresno, CA
Jul 30, 2023WARN notice
Lemoore, CA
Jun 1, 2023News
Pueblo, Colorado, USA

Amentum Holdings, Inc. has confirmed that 92 jobs were lost at its facility in Pueblo this summer. The layoffs occurred as part of a workforce reduction strategy, although specific reasons for the cuts were not detailed in the announcement. The affected employees were notified in early June 2023. This reduction reflects ongoing challenges within the company and the broader industry context. Amentum continues to assess its operational needs and workforce alignment moving forward.

Oct 15, 2022WARN notice
NAS North Island San Diego, CA
Reported Aug 27, 2026Date not disclosedNews
Hanover, Maryland

Strauss Borrelli PLLC is investigating Amentum for a potential violation of the WARN Act after Amentum notified the Maryland Department of Labor on August 18, 2026 that it would conduct a mass layoff at its Hanover, Maryland facility. The firm alleges Amentum laid off (or plans to lay off) 317 employees and may have failed to provide the 60 days’ notice required under the WARN Act, which could entitle affected workers to back pay and benefits. The notice triggered the investigation into whether the company provided adequate WARN notice and whether employees are owed remedies. Amentum is identified as a Chantilly, Virginia-headquartered government services contractor; the article seeks affected employees to contact the law firm for potential claims.

Reported Aug 26, 2026Date not disclosedNews
Chandler, Arizona, USA

Virginia-headquartered engineering contractor Amentum plans to shed 75 workers in Chandler, Arizona, according to a Worker Adjustment and Retraining Notification published Aug. 21. The company, which operates as a space and defense contractor across the U.S. and internationally, did not provide comment on the reason for the cuts. The layoff notice identifies Chandler as the location affected, though Amentum's public materials do not list Chandler among its key locations. The report indicates a planned workforce reduction rather than completed terminations and provides no specific timeline or departmental details.

Reported Feb 3, 2025Date not disclosedNews
Alabama, USA

Amentum Holdings, Inc., an engineering contractor, has announced plans for layoffs in Alabama. The company is preparing to reduce its workforce as part of a restructuring effort. Specific details regarding the number of employees affected and the timeline for these layoffs have not been disclosed. This decision comes amid broader industry challenges, but Amentum has not specified the reasons behind the cuts. The company aims to streamline operations and improve efficiency moving forward.

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