Proliferated Warfighter Space Architecture

Agency

U.S. Space Force

Acronym

PWSA

Budget

~$3.5B (Tranche 3 Tracking Layer OTAs, Dec 2025)

Phase

Development

Domain

Space

• CompanyLockheed MartinAmerican aerospace, defense, and security company.
• CompanyL3Harris TechnologiesAmerican defense technology company.
• CompanyRocket LabEnd-to-end space company providing launch services, satellites, and spacecraft components.
• CompanyNorthrop GrummanMajor American aerospace and defense prime contractor (B-21 bomber, space systems, advanced weapons).
• CompanySierra SpaceCommercial space systems including Dream Chaser spaceplane, habitats, and defense satellites.
• CompanyYork Space SystemsBuilds proliferated small satellites for the Space Development Agency and other customers.

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What is Proliferated Warfighter Space Architecture?

The Space Development Agency's Proliferated Warfighter Space Architecture (PWSA) is a layered, tranche-based architecture combining government and commercial assets to provide resilient space-domain awareness, custody, and missile warning and tracking across orbital regimes. Split out from a broader 'Space Warfighting Architecture' record to distinguish it from the separate Golden Dome space-based interceptor layer, which has its own budget and participant set (see golden-dome-sbi).

Which agency runs Proliferated Warfighter Space Architecture?

Proliferated Warfighter Space Architecture is run by U.S. Space Force and is also known as PWSA.

What is the budget for Proliferated Warfighter Space Architecture?

Proliferated Warfighter Space Architecture has a budget of ~$3.5B (Tranche 3 Tracking Layer OTAs, Dec 2025), currently in its Development phase.

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