Lead with the structure, not the slogan: a 'Golden Dome' is shorthand for layered missile defense, and layered means many systems working together rather than one wall in the sky. The RTX FY2025 10-K describes its Raytheon business as spanning integrated air and missile defense, smart weapons, missiles, advanced sensors and radars, interceptors, space-based systems, hypersonics and missile-defense work — which is, in one sentence, most of the layers.
Here is how the layers fit. First you have to see the threat: space-based sensors and ground or sea radars detect a launch and track the missile. Then you have to decide and cue: command-and-control ties the sensors to the shooters. Then you intercept, ideally more than once — a 'shot' in the boost phase, another mid-course in space, another in the terminal phase as the warhead descends. Each layer is a different set of hardware, often from a different prime.
That is why no one filing tells the whole story. Lockheed Martin's 2026 proxy statement lists hypersonic strike and defense, directed energy, and command-and-control among its solution areas — the cueing and the high-speed-threat side of the equation. Northrop Grumman's 2024 10-Q discusses higher volume on hypersonics programs and on the Tranche 2 Transport Layer, the kind of space-based connective tissue a layered system relies on.
Read across those documents and a procurement reality emerges: 'Golden Dome' as a single program name papers over an architecture that would be split among the major primes, each contributing the layer it already builds. RTX brings interceptors and radars; Lockheed brings hypersonic defense and battle management; Northrop brings space-layer transport and hypersonics. The system is a system of contractors as much as a system of systems.
For readers trying to follow the money rather than the press release, the discipline is to map capability to disclosure: when a prime describes 'space-based systems' or 'integrated air and missile defense' in its 10-K, that is the filing telling you which layer it expects to be paid to build. These records were surfaced via EdgarBeast and live on sec.gov.
One caution this desk insists on: a capability described in a filing is not a funded contract, and a program name in a budget headline is not the same as obligated dollars. Layered missile defense is an architecture and an ambition; which primes ultimately build which layers will be settled in award announcements, not in proxy-statement capability lists.