SpaceX has received a $2.29 billion contract from the US Space Force to build a major military satellite communications network known as the “Space Data Network Backbone” (SDN Backbone). The project will create a secure, high-speed system for moving military data around the world using low-Earth-orbit satellites.
The contract requires SpaceX to deliver a working prototype by the end of 2027. According to the Space Force, the network will use optically linked satellites to provide faster and more resilient communications for US military operations.
Elon Musk’s SpaceX Will Build US Military Satellite
The SDN Backbone is part of a broader Pentagon effort to modernize military communications and missile defense systems.
The network is expected to support the US military’s “Golden Dome” defense architecture by connecting satellites, sensors, and interceptors in real time.
The project also shows how deeply SpaceX has become involved in US national security infrastructure. Recent budget documents indicate the Space Force plans to spend billions more on the wider Space Data Network program in the coming years.
Which Stocks Could Benefit?
With SpaceX’s highly anticipated IPO approaching, several publicly traded defense and space companies could benefit from rising military spending on satellites, missile defense, and secure communications.
Some companies may gain directly through future contracts. Others could benefit from investor interest in the growing defense-space sector.
| Company | Ticker | Why It Could Benefit |
| Rocket Lab USA Inc. | RKLB | Strong exposure to military satellites and launch services |
| Northrop Grumman Corporation | NOC | Major defense-space contractor with satellite communications work |
| Lockheed Martin Corporation | LMT | Expected to benefit from Golden Dome missile defense programs |
| RTX Corporation | RTX | Supplies missile defense and military communication systems |
| The Boeing Company | BA | Has large defense and space operations tied to Pentagon programs |
| L3Harris Technologies Inc. | LHX | Focused on military communications and tactical systems |
| Viasat Inc. | VSAT | Provides satellite communication services for defense clients |
| Iridium Communications Inc. | IRDM | Operates global satellite communication networks |
| Firefly Aerospace | FLY | Expanding into missile defense and military space systems |
| York Space Systems | YSS | Builds satellites linked to Space Force projects |
Growing Military Space Race
The Space Data Network reflects a larger shift in US defense strategy. Instead of relying on a few expensive satellites, the Pentagon now wants massive networks of smaller connected satellites that can move data faster and survive attacks more easily.
That shift could create long-term opportunities for defense, satellite, and aerospace companies across the US market.
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