St. Mary’s County’s third-largest employer, a defense contractor that employs more than 900 people in the county of just under 114,000 residents, is leaving the area. DynCorp International, which was acquired in late 2020 by Amentum, a Germantown-based federal contractor, had served the Patuxent River Naval Air Station for more than 48 years, according to Amentum’s website. But few, if any, jobs will be lost; the company’s contract in the area, doing maintenance on five squadrons of aircrafts known as the Naval Test Wing Atlantic, has been taken over by another contractor, The Vertex Company, that county officials anticipate will maintain all 937 employees.
