Amentum will relocate its corporate headquarters to Reston, Virginia, from Chantilly with the goal of opening the campus during the first half of 2027.
The company has signed a lease agreement with Comstock to occupy 45,000 square feet of space covering 16 stories at 1900 Reston Metro Plaza, a location inside the Reston Station development and within walking distance from Booz Allen Hamilton’s future headquarters at 1870 Reston Row.
Booz Allen announced its selection of Reston in November and plans to complete that move in early 2027. Amentum’s decision to move there too grows the list of Washington Technology Top 100 companies whose headquarters are or will be in Reston…