Space startups backed by Y Combinator
Y Combinator has backed 5 space companies tracked by Space Bandits, across earth observation, space resources & mining, software and more. Those companies have raised $1.1B in disclosed funding between them. All of them are still operating independently.
Stoke Space Fully reusable Nova rocket with a novel regeneratively cooled second stage
AstroForge Asteroid mining missions targeting platinum-group metals, already flying
Inversion Space Arc reentry vehicles delivering cargo from orbit to anywhere on Earth in under an hour
Array Labs Formation-flying radar satellites building 3D maps of the entire planet
Epsilon3 SaaS for space ops
Rounds we have on record
Every round below names Y Combinator in the reporting we cite. This is what the portfolio above is built from, not an inferred relationship.
| Array Labs | Strategic round: $21M (2026-07)source ↗ |
|---|---|
| Array Labs | Series A: $20M (2026-01)source ↗ |
| Stoke Space | Series C: $260M (2025-01)source ↗ |
| AstroForge | Series A: $40M, bringing total funding to $55M (2025)source ↗ |
| Inversion Space | Series A: $44M, taking the total raised to about $54M (2025)source ↗ |
| Epsilon3 | Series A: $15M (2022-06)source ↗ |
Portfolios are built only from funding rounds we have documented with a source, so this shows the space investments we can evidence, not necessarily every one Y Combinator has made. Missing something? Tell us and we will add it with the source. How we verify.
Follow who is funding what in space
Founder interviews and the most promising space startups, straight to your inbox. Free, no spam, unsubscribe anytime.