The Bethesda, Md.-based contractor said it won the five-year, indefinite-delivery/indefinite-quantity contract to further develop the Terminal High Altitude Area Defense system.
Work under the new follow-on award includes three years of engineering technical services for flight test planning, laboratory maintenance, studies and threat assessments.
The company won a $514 million follow-on in February to conduct THAAD flight and ground testing.
THAAD has completed 12 flight tests since 2005, the latest occurring at the Kauai, Hawaii-based Pacific Missile Range Facility.
Soldiers from the 32nd Army Air and Missile Defense Command participated in the test.