WASHINGTON, D.C. – Nov. 29, 2025 – The U.S. Space Force has awarded initial contracts for the development of space-based interceptor (SBI) prototypes to Northrop Grumman, Lockheed Martin, Anduril Industries, and True Anomaly. These awards represent the first material procurements under the Trump/Hegseth “Golden Dome” initiative, a decisive strategic pivot toward a proliferated space-based missile defense architecture (overruling previous ground-based preferences).
The contracts fund the development of competing prototypes for boost-phase interceptors, designed to shoot down adversary missiles shortly after launch and before they exit the atmosphere, and the associated fire-control stations necessary to coordinate signals from a vast sensor constellation. This moves beyond traditional regional missile defenses to a persistent, global-range protective shield.
A New Era of “Buy vs. Build” for Rapid Fielding
The inclusion of non-traditional defense companies Anduril Industries and True Anomaly alongside established industry primes validates the Pentagon’s emphasized “buy vs. build” shift, prioritizing rapid development and fielding of new capabilities through commercial innovation. The government has structured the competition with “prize pools” to incentivize rapid, successful development and on-orbit testing, an approach that places significant initial investment risk on the companies themselves in exchange for potential lucrative production contracts later.
This procurement strategy aims to leverage the commercial space sector’s agility, specifically targeting the rapid deployment capabilities exemplified by companies like SpaceX, which is reportedly a frontrunner to build the program’s necessary data custody layer.
The ‘Golden Dome’ Architecture and Vision
The “Golden Dome,” a multi-layer system inspired by Israel’s Iron Dome but vastly broader in scope, is intended to detect and destroy ballistic, hypersonic, and cruise missiles. The architecture calls for several key components, including:
- Hypersonic and Ballistic Tracking Space Sensor (HBTSS) layer.
- Proliferated space-based interceptors capable of boost-phase and potentially mid-course intercepts.
- Space Development Agency’s Proliferated Warfighter Space Architecture custody layer for tracking.
The program aligns with a broader national security strategy to counter evolving and sophisticated threats from Russia and China, which have both advanced their own missile capabilities.
While cost estimates vary widely—from a White House estimate of $175 billion to a Congressional Budget Office estimate exceeding $800 billion over 20 years—the initial contracts are relatively modest, with winning firms each receiving initial “prize” funds of approximately $120,000 to conduct ground demonstrations. The true value lies in competing for future production contracts, estimated to be worth billions annually.
The initiative represents a fundamental shift in U.S. missile defense posture, moving offensive and defensive capabilities into orbit to address threats earlier in their flight paths than current ground-based systems allow.