Who supplies SM-3 Block IB? Inside Raytheon's new $6.3 billion production contract
Published October 14, 2026 / SM-3 Block IB supply chain
Raytheon has received a contract valued at up to $6.3 billion for the production and sustainment of SM-3 Block IB interceptors.
The five-year contract, with two additional option years, follows a reversal of earlier plans to end new Block IB procurement after FY2024.
interceptors added
March 2026 production modification
interceptors under the preceding contract
After the March 2026 addition
new contract ceiling
Five years plus two option years
The preceding Block IB supplier network
Three interceptor contracts / FY2019-FY2026
New Block IB orders resumed in 2025. In March 2026, the Missile Defense Agency added 23 interceptors to an existing contract, bringing the total to 78, and funded one-time production-line restart costs.
Mimir's FY2019-FY2026 data identifies 147 distinct first-tier supplier sites across three preceding SM-3 Block IB interceptor contracts, representing approximately $800 million in mapped subcontract awards.
Where the mapped value flowed
Share of mapped first-tier subcontract award value
Boeing
Huntsville, Alabama
Avionics, cable assemblies and major electromechanical assemblies
Northrop Grumman
Woodland Hills, California
Inertial measurement and reference units
L3Harris Aerojet Rocketdyne
East Camden, Arkansas
Rocket motors
Magellan Aerospace
Middletown, Ohio
Fins, wings and boattails
Standex International
New Berlin, Wisconsin
Complex forming and radome assemblies
The five largest supplier sites accounted for approximately 74% of mapped first-tier subcontract value.
Boeing's position beneath Raytheon
Boeing's Huntsville operation appeared beneath all three preceding Block IB contracts and accounted for more than half of the mapped value.
In August 2026, Boeing announced seven-year agreements with the government and Raytheon to increase production of SM-3 avionics and ejector assemblies across the Block IB and Block IIA variants.
The new Raytheon contract therefore provides a longer demand horizon for an established but highly concentrated supplier network. Much of the ramp will pass through a relatively small group of operations already producing the interceptor's avionics, propulsion, navigation equipment, structures and energetic components.
RTX multi-year contract announcement, March 2026 Missile Defense Agency contract announcement, Department of War SM-3 production-framework announcement, Boeing SM-3 production-framework announcement, USAspending, FPDS and Mimir Data Platform and Modeling.
Mimir analysis covers mapped first-tier subcontract awards across three preceding SM-3 Block IB all-up-round contracts, FY2019-FY2026. Supplier sites are distinct CAGE-defined operations. Percentages refer to shares of the mapped first-tier subcontract award value after applying Mimir's subcontract de-duplication logic. They do not represent shares of total prime-contract value. Figures are rounded.