The contract covers project management, equipment, maintenance, software development and support, data warehousing, systems integration, and financial management.
CSC said it is working with 27 other companies on the contract.
Computer Sciences Corp has received a new five-year contract from the US Defense Finance and Accounting Service to provide a range of outsourcing services. The deal is estimated to be worth $250m.
The contract covers project management, equipment, maintenance, software development and support, data warehousing, systems integration, and financial management.
CSC said it is working with 27 other companies on the contract.