Mass-layoff and plant-closure filings reported by Amentum in 2026, sourced from official state WARN records.
Amentum is a global government services and engineering company delivering advanced technical solutions in defense, intelligence, space, nuclear energy, environmental remediation, and digital transformation. Headquartered in Chantilly, Virginia, Amentum operates across more than 80 countries, supporting U.S. and allied government clients through the full program lifecycle, from research and engineering to operations, sustainment, and decommissioning.
8 filings in 2026


Filings
8
WARN notices so far
Workers affected
644
in 2026 so far
States
5
Top state
Maryland
418 affected
Peak month
October
394 affected
Amentum layoffs month by month in 2026
Workers affected by the month each layoff took effect.
All Amentum filings in 2026
Every WARN notice on record for this year, newest first.
Amentum layoffs by state in 2026
5 states reported Amentum layoffs, ranked by workers affected. Open a state for its full history.