L3Harris builds spacecraft for defense and intelligence missions, including SDA missile-warning satellites, and supplies optical, communications and guidance systems for space missions.
L3Harris is a US defense prime (NYSE:LHX, ~$21B group) whose missile-tracking satellite franchise has 4 Tranche 0 satellites on orbit plus 34 in development, winning an $843M T3 Tracking Layer award (December 2025) and a $955M AMDT3 award (July 2026) for fire-control-quality sensors due by end-2028 under the Golden Dome mandate. It is Golden Dome's biggest visible satellite winner, its $1.75B AMDT3 (split with Sierra Space) sitting atop the December 2025 $3.5B/72-satellite T3 round, with Aerojet Rocketdyne propulsion under the group and Army NGC2 orders adding demand. It is the defense-prime space engine at full demand.
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L3Harris builds spacecraft for defense and intelligence missions, including SDA missile-warning satellites, and supplies optical, communications and guidance systems for space missions. L3Harris is a US defense prime (NYSE:LHX, ~$21B group) whose missile-tracking satellite franchise has 4 Tranche 0 satellites on orbit plus 34 in development, winning an $843M T3 Tracking Layer award (December 2025) and a $955M AMDT3 award (July 2026) for fire-control-quality sensors due by end-2028 under the Golden Dome mandate. It is Golden Dome's biggest visible satellite winner, its $1.75B AMDT
L3Harris ranks 3 of 100 on the Space 100 (November 2026 edition) with a score of 91 out of 100, in Defense & intelligence (Applications). Assessment by Frontier Tech Intelligence.
Lockheed Martin Space (rank 5), Northrop Grumman Space (rank 9), True Anomaly (rank 16), Rheinmetall (rank 31), Slingshot Aerospace (rank 52), LeoLabs (rank 59).
L3Harris is based in Melbourne, Florida, United States. Stage: Public.
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