Q4 2025 Rankings
Space Tech Startups to Watch, Q4 2025
Space tech has a small but distinct engineering footprint on GitHub.
| # | Company | Stage | Geo | Commits (14d) | Change | Contributors | Contrib. Growth | New Repos | Signal |
|---|---|---|---|---|---|---|---|---|---|
| 1 | pytroll | Growth | Unknown | 47 | +327% | 100 | +0% | 0 | Deploy frequency spike |
| 2 | CelestiaProject | Growth | Unknown | 1 | +0% | 54 | +0% | 0 | Framework migration |
| 3 | ss220-space Space Station 13 and more! | Growth | Unknown | 106 | -5% | 100 | +261% | 0 | Engineering hiring burst |
| 4 | goonstation The classic flavor of Space Station 13. | Pre-seed | Unknown | 53 | -23% | 2 | +0% | 0 | Framework migration |
| 5 | OpenC3 Open Source. Open Architecture. Command, Control and Communication | Series A/B | US | 42 | -58% | 45 | +0% | 0 | Framework migration |
| 6 | OpenSpace OpenSpace is an open source interactive data visualization software designed to show the known universe and portray our | Growth | Unknown | 6 | -60% | 59 | +40% | 1 | Framework migration |
Sorted by commit velocity change (14-day window, descending). Top 3 highlighted. Data last updated Q4 2025.
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Frequently Asked Questions
What engineering signals are space tech startups showing in Q4 2025?
In Q4 2025, we are tracking 6 space tech startups with measurable GitHub engineering signals. 1 of 6 show positive commit velocity growth. The most common signal type is "Framework migration", observed in 4 of the tracked companies. The average 14-day commit velocity across the sector is 43 commits, with pytroll leading at 47 commits (+327% change). These patterns have historically preceded fundraise announcements by six to twelve weeks.
Which space tech startup has the highest engineering acceleration in Q4 2025?
pytroll leads the space tech sector in Q4 2025 with 47 commits over a 14-day window, representing a +327% change from the prior period. With 100 active contributors, pytroll is showing a "Deploy frequency spike" pattern — one of the more reliable leading indicators of a significant product milestone or fundraise.
Where are the most active space tech engineering teams located?
Among the 6 space tech startups we track, US accounts for the highest concentration with 1 teams. Startups building launch vehicles, satellites, and space data platforms. Geographic distribution matters for investors because engineering talent clusters correlate with sector-specific domain expertise and proximity to early adopter customers.