SpaceX wins $2.29 billion Space Force contract for data network backbone
Space Systems Command awarded SpaceX $2.29 billion to build the backbone of its new military Space Data Network.

what happened
The U.S. Space Force's Space Systems Command awarded SpaceX a $2.29 billion Other Transaction Authority agreement on May 26, 2026 to develop the Space Data Network (SDN) Backbone, a proliferated low Earth orbit constellation built on SpaceX's Starshield satellites, per Breaking Defense and DefenseScoop. SpaceX must deliver a fully operational prototype by the end of 2027. The SDN Backbone, formerly known as MILNET, is meant to provide high-capacity, low-latency data transport linking sensors to shooters and will work alongside the Space Development Agency's Transport Layer as part of the Golden Dome missile-defense architecture, per DefenseScoop. Col. Ryan Frazier, acting Space Force portfolio acquisition executive, said the award "leverages the best of commercial innovation and delivers a strong foundation for the SDN mission set," per DefenseScoop.
why it matters
This is one of SpaceX's largest single defense contracts and anchors it as the backbone provider for the Pentagon's emerging Space Data Network, ahead of the multi-vendor pool the Space Force later opened to Amazon, Lockheed Martin, Northrop Grumman, Rocket Lab, and York Space Systems for interoperability demonstrations against this same backbone. It cements Starshield as core Golden Dome infrastructure alongside SpaceX's other awards under the program.
for who
Defense primes, satellite communications vendors
signal-to-noise
quick facts
- Companies
- SpaceX
- Category
- procurement
- Impact
- major
- SNR
- 4 / 5
- Event date
- 2026-05-26
- Published
- 2026-08-21 05:32 UTC