Join Capital
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Investment Thesis
Invest early in foundational deep tech that solves the world's toughest problems across defence, space, quantum computing, AI/cybersecurity, and advanced materials—companies that can lead, scale, and last.
Investment Profile
- Stage: Seed
- Sectors: Defence, Space, Quantum Computing, Cybersecurity, Advanced Materials, Autonomous Systems
- Check size: $1M–$5M
- Geography: Europe
Investment Team
- Florian Grigoleit — Co-Founder
- Joe Griston — Co-Founder, Generative Engineering · engineering toolchain
Frequently Asked Questions
What does Join Capital invest in?
Join Capital is a seed stage Defence, Space, Quantum Computing, Cybersecurity, Advanced Materials, Autonomous Systems investor, typically writing $1M–$5M checks, primarily investing in Europe. Their thesis: Invest early in foundational deep tech that solves the world's toughest problems across defence, space, quantum computing, AI/cybersecurity, and advanced materials—companies that can lead, scale, and last.
How do I get a meeting with Join Capital?
Use DryPowder's AI fund matching to see exactly how your startup aligns with Join Capital's thesis and portfolio. The tool gives you a fit score and specific talking points tailored to Join Capital's focus areas (Defence, Space, Quantum Computing, Cybersecurity, Advanced Materials, Autonomous Systems), so you can approach them with confidence.
Is Join Capital actively deploying capital?
DryPowder tracks deployment signals for Join Capital — including recent deals, LP closes, and portfolio news. Signal subscribers get real-time alerts when Join Capital makes moves, so you can reach out when the timing is right.
Is Join Capital right for your startup?
Use DryPowder's AI fund matching to see how Join Capital compares to your raise profile — and find the best-fit investors from 500+ tracked funds.