By 2028, the Pentagon wants to demonstrate an initial version of Golden Dome, the Trump administration’s planned missile-defence architecture for the American homeland. By 2035, it wants a more complete, purpose-built system.
Between those dates lies a procurement challenge that could determine whether Golden Dome becomes a functioning defence network or another costly collection of unconnected programs.
The early architecture is expected to combine existing and emerging systems rather than wait for an entirely new shield to be developed. Gen. Michael Guetlein, the program’s director, has described Golden Dome as a system of systems: a network intended to link sensors, interceptors and command networks operated by different military services and defence agencies.
That framing shifts attention from a single marquee contract to a sprawling series of acquisitions: satellites that can detect and track missiles; secure networks that can move data rapidly; software that can combine information from multiple sensors; command systems that can support an interception; and hardware that can survive the demands of launch, orbit and combat operations.
For industry, the most immediate commercial opportunity may be in making those disparate elements work together.
From prototypes to a working network
The system will not be built all at once. The Space Force’s space-based interceptor program is being structured around prototype work and flexible acquisition arrangements, allowing the government to assess competing technologies before selecting capabilities to advance.
In late 2025 and early 2026, Space Systems Command awarded 20 Other Transaction Authority agreements to 12 companies, with a potential combined value of up to US$3.2 billion, to develop space-based interceptor technologies. The program’s stated objective is to demonstrate an initial capability that can be integrated into Golden Dome by 2028.
The winners include established defence contractors—Lockheed Martin, Northrop Grumman and Raytheon—as well as Anduril, SpaceX, True Anomaly, Turion Space and other newer entrants.
The mix offers a clue to the Pentagon’s strategy. It is seeking to preserve access to established missile-defence engineering while drawing on commercial-space companies that promise speed, lower costs and shorter development cycles.
But the contracts also underscore the program’s uncertainty. The 2028 interceptor target is for an initial capability, not a deployed, comprehensive orbital shield. The Space Force has selected Johns Hopkins University’s Applied Physics Laboratory as technical direction agent for the interceptor program, assigning it a role in maintaining technical coherence across an unusually broad field of participants.
That is a telling move. The central procurement problem is integration.
In the past, military programs have often bought sensors, satellites, command systems and weapons through separate offices, each with distinct specifications, budgets and schedules. Golden Dome’s premise is that those systems must exchange trusted data and operate as a unified network.
Where the contracts are going
The Space Development Agency is already moving toward larger-scale procurements. In July, it awarded agreements worth about US$1.75 billion to L3Harris Technologies and Sierra Space to build 36 missile-warning, tracking and missile-defence satellites. The spacecraft are expected to be available for launch by the end of 2028.
Those awards turn Golden Dome’s broad ambitions into a manufacturing schedule. L3Harris is to produce 18 missile-defence satellites under an agreement valued at about US$955 million. Sierra Space is to provide 18 missile-warning and tracking satellites under an agreement worth about US$798 million.
The procurement map, then, is beginning to come into focus. Companies should watch the Space Development Agency for tracking-layer contracts; Space Systems Command for interceptor, launch and related space-system work; and the Golden Dome program office for integration, experimentation and test opportunities.
The most valuable work may not always carry the Golden Dome name. It may appear in contracts for satellite ground systems, data transport, cyber protection, modelling and simulation, autonomous operations, component supply, test infrastructure and command-and-control software.
For Canadian companies, the path is likely to run through U.S. prime contractors and allied continental-defence work. That will require attention to U.S. security requirements, export controls and teaming arrangements. But the underlying demand—better sensors, faster data fusion, resilient communications and reliable space hardware—extends beyond the highest-profile interceptor programs.
The funding test
Congress provided US$22.5 billion for Golden Dome in 2026. Guetlein said in August that roughly 90 per cent of it had been obligated, while the timing and scale of the program’s next major funding instalment remained uncertain.
That uncertainty makes the next phase especially consequential. The Pentagon can accelerate prototype awards and demonstrations, but building a durable missile-defence architecture requires predictable funding, production capacity and sustained technical discipline.
Golden Dome’s first deadline is 2028. Its first real verdict may arrive much sooner, in the contracts the Pentagon chooses to award—and in whether those contracts produce a connected system rather than a collection of impressive parts.