The Department of Defense’s information systems agency has finalized a potentially $17.5 billion deal with 20 companies for its ENCORE III information technology suite.

The Defense Information Systems Agency’s ENCORE III is now available to DoD and its federal partners to utilize a full range of open large business IT suites, ranging from engineering develop to full sustainment services.

The 20 companies included as contractors in ENCORE III are 22nd Century TechnologiesAASKI TechnologyAce Info SolutionsActioNet, AECOM[ACM] XNet, Booz Allen Hamilton [BAH], CACI Inc.[CACI], CSRA [CSRA],  ECS Federal,  General Dynamics[GD], IAP C4ISRIndraSoftLeidos [LDOS], ManTech[MANT], NES AssociatesNetCentrics, NT ConceptsPhacilQbase and Solers, Inc.

“CSRA, along with our NES teammates, will provide next-generation technology and robust support to DISA’s critical missions. We are honored to continue CSRA’s 50-year partnership with DISA and support their important role in America’s defense,” said Ken Deutsch, head of CSRA’s defense group, in a statement.

General Dynamics [GD] acquired CSRA on Feb. 12 in a $9.6 billion deal to make the company one of the largest providers of federal information technology services.