L3Harris ranks 3 on the Space 100 with a score of 91; Slingshot Aerospace ranks 52 with 73. L3Harris is ahead on production, commercials, progress, technology, positioning and firepower. Slingshot Aerospace is ahead on deployment. Level on leverage. L3Harris is based in Melbourne, United States, Slingshot Aerospace in United States. L3Harris: Public. L3Harris is named in 109 signals and Slingshot Aerospace in 5.
L3Harris builds spacecraft for defense and intelligence missions, including SDA missile-warning satellites, and supplies optical, communications and guidance systems for space missions.
Darker bar: ahead of the other company on that measure.
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.
109 signals name L3Harris.
74 facts on file.
Slingshot Aerospace sells Portal, an AI-powered platform for LEO operations and orbital tracking to space and government customers.
Darker bar: ahead of the other company on that measure.
Slingshot Aerospace is a US space-situational-awareness company running 220+ optical sensors at 22 sites on five continents (LEO-through-GEO tracking, day and night) with a product stack spanning a Global Sensor Network, sovereign space-object tracking, the Agatha AI anomaly-explanation engine, and on-demand tasking. It is the optical half of the commercial SSA duopoly (complement to LeoLabs' radar), embedding into operator workflows as its moat, with a Portal platform expansion (January 2026). It holds the largest single visible award among the SDA startups (value not captured this pass); revenue is estimated at 10-100m.
5 signals name Slingshot Aerospace.
11 facts on file.
L3Harris ranks 3 on the Space 100 with a score of 91; Slingshot Aerospace ranks 52 with 73. L3Harris is ahead on production, commercials, progress, technology, positioning and firepower. Slingshot Aerospace is ahead on deployment. Level on leverage. L3Harris is based in Melbourne, United States, Slingshot Aerospace in United States. L3Harris: Public. L3Harris is named in 109 signals and Slingshot Aerospace in 5.
L3Harris ranks 3 on the Space 100 with a score of 91; Slingshot Aerospace ranks 52 with 73. L3Harris is ahead on production, commercials, progress, technology, positioning and firepower. Slingshot Aerospace is ahead on deployment. Level on leverage. L3Harris is based in Melbourne, United States, Slingshot Aerospace in United States. L3Harris: Public. L3Harris is named in 109 signals and Slingshot Aerospace in 5. Both company files carry the scores on eight measures, the facts with sources and the latest signals.
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