NSSL Phase 3: Stoke and Rocket Lab

Rocket Lab being selected alongside Stoke shows that NSSL Phase 3 Lane 1 is less a winner take all endorsement and more a government market making tool for credible new launch vehicles. The Space Force on ramped both companies into Lane 1 on March 27, 2025, expanding the field to five providers. For Stoke, that means it is being judged in the same emerging provider bucket as Neutron, not yet against Falcon 9 on proven flight record or mission volume.

• Lane 1 is the lower risk tolerance tier for commercial like national security missions, and it is built as a multiple award IDIQ with recurring on ramps. That structure matters because Stoke does not need to displace incumbents immediately, it only needs to become eligible to bid as its vehicle matures.
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• Rocket Lab brings an operating launcher, Electron, existing launch site and mission operations experience, and a larger 13 ton Neutron roadmap. That gives the government a second serious new entrant with real launch muscle, and sets a practical benchmark for Stoke on readiness, cadence, and customer trust.
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• The addressable pool is meaningful. Internal estimates put Lane 1 at up to $5.6 billion through 2029. Early task orders have already gone to SpaceX, which shows the contract vehicle is active now, while newer entrants use selection to prove reliability and work toward their first actual mission awards.
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The next step is a sorting process inside the same contract lane. Rocket Lab is likely to press its advantage in operations and medium lift payloads, while Stoke tries to turn full reusability into lower cost and faster turnaround. As more on ramps and task orders are issued, Lane 1 will become the proving ground that determines which fast follower becomes a durable national security launch supplier.