The U.S. Space Force awarded Boeing Defense, Space & Security a potential $2 billion fixed-price-incentive-firm-target contract for Phase II of the Mobile User Objective System Service Life Extension Program, selecting the company over incumbent Lockheed Martin in a two-offer competition. The award, announced in late June 2026, covers design, development, production, launch support, and on-orbit testing of two new MUOS satellites, with work to be performed in El Segundo, California, through September 30, 2035.

What Is MUOS and Why Phase II Matters

The Mobile User Objective System is the Department of War's primary narrowband military satellite communications constellation, providing ultra-high-frequency voice, data, and mobile communications to troops, ships, aircraft, and special operations forces worldwide. Often described as a cellphone network in space, MUOS uses geostationary orbit satellites paired with ground infrastructure modeled on commercial third-generation cellular architecture to extend secure communications to military users across the globe.

The existing constellation consists of five satellites built by Lockheed Martin and launched between 2012 and 2016. The Space Force assumed programmatic responsibility for MUOS from the Navy in 2023. While the current constellation was originally expected to remain operational into the 2030s, the service launched the Service Life Extension Program to ensure continuity of narrowband coverage as those satellites age and spectrum demand from joint and allied users grows.

Phase I of the extension program, launched in January 2024, awarded $66 million contracts each to Boeing and Lockheed Martin for risk reduction and early design activities. Space Force program officials had indicated in budget documents that a Phase II downselect was planned for fiscal 2026. Boeing's win closes that competition and removes Lockheed from the production path for the next generation of MUOS satellites — a notable outcome given that Lockheed designed and built every satellite in the current constellation.

Contract Terms and Funding

Space Systems Command obligated $204 million in fiscal 2026 research, development, test and evaluation funds at the time of award, representing the initial tranche of funding against the $2 billion ceiling. The contract type — fixed-price-incentive-firm-target — places performance and cost risk primarily on Boeing while offering a fee structure tied to meeting cost and schedule targets, consistent with the administration's ongoing push to shift defense satellite programs toward firm-fixed-price and incentive-based vehicles where technical maturity permits.

The two-offer competition indicates that both Boeing and Lockheed submitted full proposals following their Phase I work, giving Space Systems Command the benefit of a competitive downselect rather than a sole-source continuation. Boeing's win is also notable in the broader context of the company's defense satellite business, which has faced cost and schedule challenges on programs including GPS III follow-on. A fixed-price-incentive structure on MUOS Phase II signals the service's intent to hold the awardee to rigorous cost discipline. The $204 million obligated at award represents approximately ten percent of the contract ceiling, a typical initial funding tranche that gives the government leverage over contractor performance before committing the full program value.

Narrowband Communications Remains a Pentagon Priority

Despite the rapid expansion of commercial satellite broadband services, DoD officials have consistently maintained that narrowband communications require dedicated government systems. Narrowband links — lower data-rate but highly jam-resistant and accessible from small, low-power terminals — are the connectivity backbone for dismounted infantry, submarines, and aircraft operating in communications-denied or bandwidth-constrained environments. The MUOS constellation's wideband CDMA waveform, layered on top of its legacy UHF capability, extends that access to modern smartphones and software-defined radios without requiring the large dish antennas of earlier generations.

The Space Force's decision to extend MUOS rather than transition narrowband users entirely to commercial wideband services reflects both the operational criticality of the capability and the practical reality that no commercial provider currently offers the combination of global coverage, low-probability-of-intercept waveforms, and integration with military command-and-control networks that MUOS provides. Narrowband terminals are fielded across the joint force in quantities that make a near-term wholesale transition to a new architecture operationally impractical, and the wideband CDMA capability introduced with the current MUOS constellation is still being adopted at the unit level across the Army, Navy, and Marine Corps.

Boeing's win also signals that the Space Force is willing to break a long-running incumbent advantage in strategic satellite programs when a competitive downselect produces a technically superior or more cost-controlled alternative. Lockheed Martin has dominated military satellite production for decades across MUOS, GPS, and Protected Tactical SATCOM — Boeing's entry into MUOS Phase II represents the first major competitive loss Lockheed has suffered in the narrowband category. Program observers will watch whether the precedent affects competition dynamics in the Protected Tactical Satellite system and future GPS constellation sustainment decisions.

What It Means for Contractors

  • Boeing's win opens a decade-long performance period through 2035 for satellite integration, ground system support, and launch services subcontracts in El Segundo and at affiliated facilities.
  • Lockheed Martin's exclusion from Phase II production does not preclude the company from competing for MUOS ground segment sustainment or future narrowband follow-on programs beyond the current extension.
  • The fixed-price-incentive structure sets a precedent for future Space Force satellite competitions — contractors bidding on similar extension programs should anticipate cost accountability mechanisms rather than cost-plus vehicles.
  • Space Force's willingness to conduct a competitive downselect after Phase I parallel development represents a model other programs may replicate: fund two parallel designs at modest cost, then award production to the stronger performer.
  • Firms in the satellite integration supply chain — antenna systems, transponders, solar arrays, propulsion — should track Boeing's subcontracting notices on SAM.gov as the Phase II design matures.
  • Narrowband SATCOM users in allied nations — MUOS has active user agreements with NATO and Indo-Pacific partners — should coordinate with their respective defense ministries on access continuity planning as the Phase II satellites transition the constellation's waveform capabilities.

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