The end of the ISS

The International Space Station has been continuously crewed for more than two decades, and it is the anchor of human spaceflight in low Earth orbit. It is also nearing the end of its service life. NASA has targeted a transition in 2030, when the station would be deorbited and its functions handed off to a commercial successor.

That handoff is the entire premise of the commercial space station market. Rather than build a government-owned replacement, NASA has chosen to become an anchor customer for privately built and operated stations, the same playbook it used to develop commercial cargo and crew delivery.

The transition is the catalyst behind a cluster of space promos, including Jason Simpkins’s “Galactic Supply Chain” pitch. It is a real program with a real timeline, and it is also years away from producing revenue at scale.

What commercial space stations are

A commercial space station is a privately owned orbital facility that sells capacity, services, and access to government and private customers. The business model borrows from the ISS: governments rent research and crew time, while private customers pay for manufacturing, tourism, and media opportunities in microgravity.

NASA’s Commercial Low Earth Orbit Destinations program is the near-term anchor. It funds development of one or more private stations so that a replacement is ready before the ISS retires. The agency is the guaranteed first customer, but the long-term bet is that private demand follows.

The market’s honest uncertainty is on that private-demand side. Government funding can seed the stations, but a self-sustaining commercial market in orbit has not been proven, and the customer base beyond NASA is still thin.

Starlab and Voyager’s prime role

Starlab is one of the leading commercial station designs, and Voyager is its lead designer and prime contractor. The station is a roughly 400-cubic-meter facility designed for continuous crewed operation, with a stated goal of keeping humans in orbit into the 2050s, well past the ISS handoff.

Voyager’s position is a real, named prime role, not a supplier tag-along. That distinction matters in the pitch: being the lead on a station is a different claim from supplying a component, and it is why Starlab features so heavily in the company’s narrative.

The station is scheduled to launch on a SpaceX Starship in 2028 or 2029. That schedule rests on two independent timelines: Starlab’s own development and Starship’s readiness to carry it. Both are ambitious, and either can slip.

The competition: Axiom Space and others

Starlab is not running alone. Axiom Space, a private company, is pursuing a different path to the same market, attaching its first modules to the ISS itself before detaching them into a free-flying station. That approach likely reaches operational status first, because it borrows the ISS’s power and life support in the early years.

The two paths illustrate the strategic divide. Axiom Space buys time by docking with the ISS. Starlab goes straight to a free-flying design, which is cleaner as a long-term successor but carries more schedule risk up front.

There are other entrants and concepts in the mix, but Starlab and Axiom Space are the two names that keep showing up in investor conversations. For how the Axiom Space side works, see our Axiom Space stock explainer.

The timeline and the market

The commercial station timeline runs in stages. Development and testing occupy the mid-2020s. First operational capability, whether by Axiom Space’s ISS-attached modules or Starlab’s free-flying launch, lands in the late 2020s. Full handoff and a mature market follow in the 2030s.

That is a long runway, and it defines the investment risk. The companies leading this market are spending heavily now for revenue that arrives at the end of the decade at the earliest. A pre-profit company whose flagship asset is a station that has not launched is, in effect, a development-stage bet.

The market also leans on broader space-economy demand, which we have covered in our space tourism piece. If private demand for orbital access grows the way the bulls expect, the station market has room; if it stalls, the stations fall back on NASA as their only customer.

The anchor-customer economics

NASA’s role as the anchor customer is the linchpin of the entire market. The agency’s commercial low Earth orbit program guarantees a baseline of crew and cargo revenue for whichever stations reach orbit, which gives developers a foundation to build on before private demand materializes.

The risk is that the anchor is not unlimited. NASA’s budget for station access is a real but finite line item, and it has signaled it wants competition rather than a single monopoly provider. A station that relies entirely on NASA funding survives; one that attracts private manufacturing and research customers thrives.

That distinction is the real long-term question for Starlab, Axiom Space, and every other entrant.

The bottom line

Commercial space stations are a real program with a real NASA anchor and a real competitive race between Voyager’s Starlab and Axiom Space. The honest caveat is timing and scale: the stations do not fly until the late 2020s, the revenue does not ramp until the 2030s, and the private demand that would make the market self-sustaining is still unproven.

Ready to see the research? Click here to access Jason Simpkins’s report.

NewsletterVetter is an independent publication. We receive compensation from some of the services we review through affiliate links. Nothing on this site is investment advice. Always do your own research.