Teams led by Boeing and Lockheed Martin have lodged proposals with the U.S. Air Force for the development and production phase of the Transformational Satellite Communications System (TSAT) Military Operations System, the companies announced July 30.

TSAT is designed to provide American warfighters secure, interoperable, high-capacity global communications. The contract for the space segment will include the design, development and launch of up to five satellites as well as production of a one. The contract also includes the ground-based command and control and the high data-rate gateway. The contract’s value may reach $15 billion if all options are exercised.

Boeing’s team consists of Cisco Systems, Hughes, IBM, Harris Corp., Ball Aerospace & Technologies Corp., LGS Innovations, Raytheon, General Dynamics C4S, L-3 Communications, BBN Technologies, EMS Technologies, Innovative Communications Engineering and SAIC.

Lockheed Martin’s team includes Northrop Grumman, ViaSat Inc. and Juniper Networks Inc.