The U.S. Space Development Agency (SDA) is a U.S. Space Force direct-reporting unit focused on the rapid deployment of space-based capabilities to the joint warfighter. It aims to achieve this through the development, fielding, and operation of the Proliferated Warfighter Space Architecture, a threat-driven constellation of small satellites in low Earth orbit. SDA's key focus areas include military data and communications connectivity, missile tracking, and development of a resilient space architecture, working with partners like Lockheed Martin, SpaceX, and York Space Systems. Their work supports terrestrial missions and enhances warfighter lethality, maneuverability, and survivability.
All verified mentions of this organization in source documents.
Rocket Lab's contract for the Tranche 3 satellites marks its first selection as a prime contractor for the SDA's tracking mission.
The Space Development Agency awarded $3.5 billion in contracts to continue building the Proliferated Warfighter Space Architecture.
The Space Development Agency awarded four contracts totaling $3.5 billion on Dec. 19 to build 72 satellites for the Tranche 3 Tracking Layer.
The Tranche 3 awards represent a significant scaling of the Space Development Agency's spiral development model.
The Proliferated Warfighter Space Architecture (PWSA) is an initiative by the Space Development Agency to create a global mesh-networked missile defense and communications architecture in low-Earth orbit.
Lockheed Martin, Rocket Lab USA, Northrop Grumman, and L3Harris Technologies are to build 72 satellites for Tranche 3 of the U.S. Space Force's Space Development Agency's Tracking Layer under more than $3.5 billion in Other Transaction Authority rapid prototyping contracts.
Northrop Grumman Corporation was awarded a Tracking Layer of Tranche 3 (TRKT3) contract by the Space Development Agency (SDA) to deliver missile warning and tracking satellites.
Northrop Grumman is set to deliver 150 satellites as part of Tranches 1, 2, and 3 for the Space Development Agency’s missile defense initiative.
The Space Development Agency's Proliferated Warfighter Space Architecture has been working on a constellation of satellites with missile warning and tracking capabilities.
Cailabs has demonstrated its Space Development Agency (SDA)-compatible optical ground station in a space-to-ground optical demonstration with a Kepler Communications satellite.
The modified Quickbeam™ payload will be optimized for Missile Warning and Missile Tracking applications within the Space Development Agency's Proliferated Warfighter Space Architecture.
Muon Space secured a $1.9 million Direct-to-Phase II Small Business Innovation Research contract from SpaceWERX to adapt its commercial remote sensing technology for the Space Development Agency's missile defense architecture.
The Halo™ satellite platform was selected for the Space Development Agency's Hybrid Acquisition for Proliferated Low-Earth Orbit pool in late 2024.
The legislation directs $500 million to the Space Development Agency’s Tranche 3 Transport Layer and $474 million to the polar segment of the Next-Generation Overhead Persistent Infrared missile warning system.
In September 2025, Kepler partnered with the Space Development Agency and General Atomics Electromagnetic Systems to establish the first-ever commercial bi-directional optical link between a satellite and a General Atomics MQ-9B SkyGuardian aircraft in flight.
The Space Development Agency is building the Proliferated Warfighter Space Architecture, a low-earth orbit mesh for hypersonic missile detection and tracking.
Sedaro's simulation architecture is trusted by the U.S. Space Force, Space Development Agency, NASA, and leading primes.
The Space Development Agency has allocated a place for AI-powered systems within its architecture for proliferated assets.
In 2025, York Space Systems completed assembly, launch, and commissioning of 21 satellites for the Space Development Agency's first-generation Transport Layer.
The constellation is built for compatibility with the U.S. Space Development Agency's optical communications standard.