Commercial space stations: where the field actually stands
No commercial space station is in orbit. Vast leads at development stage 3 with Haven-1 now slipped to Q1 2027, while the ISS is planned to deorbit around 2030 — the tightest schedule risk on this tracker.
Commercial space stations carry four metrics and 7 milestones here, and it is the only field on the tracker where the incumbent infrastructure has a scheduled end date.
The development-stage metric runs a 1–5 ladder: concept and agreement, development, ground qualification, in orbit, then crewed continuous operations. Vast leads at stage 3, having completed structural qualification of Haven-1 in November 2025 and flown a pathfinder. Axiom Space, Voyager's Starlab and Blue Origin's Orbital Reef all sit at stage 2, in development or design. Nobody is at stage 4. Nothing commercial is in orbit.
The design figures show how differently the contenders read the market. Habitable volume ranges from Vast's Haven-1 at 45 m³ — a single 14-tonne module on a Falcon 9 — to Starlab's 340 m³ and Orbital Reef's 830 m³, against the ISS's roughly 916 m³. Crew capacity splits the same way: Orbital Reef designs for about 10, while Vast, Axiom and Starlab each target 4, versus the ISS's usual 7. Vast's Haven-1 is built for roughly ten-day stays rather than continuous habitation. Research output in the microgravity literature runs about 6,124 papers a year.
The schedule is the story. Vast slipped Haven-1's launch from 2026 to Q1 2027 as cleanroom integration ran longer — and that single 14-tonne module would still be the first commercial space station in orbit if it flies. NASA plans to deorbit the ISS around 2030, with a two-year extension under debate, handing low Earth orbit to commercial stations if they are ready. Humans have lived aboard the ISS without a break since November 2000; that continuity is what this field has to carry on, and the gap between stage 3 and continuous crewed operations is four rungs of the ladder in under four years.
Capital arrived in 2026. Axiom closed an oversubscribed round of more than $525M — $350M in February led by Type One Ventures and QIA, plus a $175M June extension joined by MUFG — the largest station-sector raise, coming amid NASA's rework of its Commercial LEO Destinations strategy. That NASA program, which seeded Orbital Reef, Starlab and a Northrop concept back in December 2021, remains the field's anchor customer arrangement.
China is the competitive backdrop rather than a participant: it completed its three-module Tiangong station in November 2022, a crewed government station that will keep operating regardless of how the commercial field resolves.
The locked milestone is the ISS retiring and commercial stations taking over LEO, dated 2030 and explicitly conditioned — if they are ready in time. On current stage numbers that condition is doing real work.