Computer Sciences Raytheon (CSR) is a joint venture partnership between Computer Sciences Corporation and Raytheon Technical Services Company.

CSR is the contractor that has managed the Eastern Test Range since 1988.

CSR is headquartered at Patrick Space Force Base, Florida.

On August 23, 2007, it was announced that CSR had been awarded the current Eastern Range Technical Services contract[2] to continue managing the Eastern Range for the foreseeable future.

Besides Patrick Space Force Base, CSR operations include the following locations: