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Quarterly review of global private SpaceTech Investment
Seraphim Space Index
Seraphim is the world’s leading specialist investor in SpaceTech. Since 2017, we have been producing the Seraphim Space Index report, which allows us to share our unique access to knowledge and data about investing in space technology. This data is now available in an easy-to-use interactive format, allowing you to look back and track growth and trends from 2017 to today. We are looking to help other investors gain a deeper understanding of the new space economy and share our excitement for the multi-decade transformational potential of SpaceTech.
INTERACTIVE INDEX DASHBOARD
quarterly index highlights
invested in the Trailing Twelve Months (TTM) to Q4 2025
$12.4bn
invested in Q4 2025 ($3.5bn in Q3 2025)
$3.8bn
deals in TTM to Q4 2025 (593 in TTM to Q4 2024)
604
deals in Q4 2025 (160 in Q3 2025)
147
biggest deal closed (Stoke Space)
$510m
average deal size in Q4 2025 ($30m in Q3 2025)
$35m
median deal size in Q4 2025 ($5.8m Q3 2025)
$8.5m
We use a wide range of different data sources to compile our investment tracker. This includes proprietary, off-market information from our deal flow, network, deal databases such as Crunchbase, industry news sources such as Spacenews and TechCrunch, and public announcements from companies. We only include third-party capital invested on an arm’s length basis and, therefore, do not include personal investments.
