Join Capital
Venture capitalBerlin · Pre-Seed–Series A
Investment thesis
The firm invests in deep technology companies that address critical infrastructure, industrial, and defence needs. It targets founders building solutions with genuine technological advantages over legacy systems, particularly those addressing geopolitical shifts reshaping industries. The investment approach extends beyond capital provision to include market navigation, technology scaling, and customer acquisition support through a network of high-level operators and strategists.
Source: firm website, verified Jul 21, 2026.
Investments · 11 tracked
founders shown can be your intro pathFoundation model enabling 100% automation of control software development with error-free testing capabilities.
High-performance in-space propulsion systems for small and large satellites using novel non-toxic propellants.
Photonic integrated circuits for high-speed, low-power optical communications.
High-performance autonomous interception systems for protecting civilian airspace and critical infrastructure from unauthorised drone activity.
Frequently asked questions
- What stage does Join Capital invest at?
- Join Capital invests at the Pre-Seed, Seed, Series A stages.
- What is Join Capital's typical check size?
- Join Capital typically writes checks of $1M – $5M.
- What sectors does Join Capital focus on?
- Join Capital focuses on Advanced Manufacturing, Deep Tech, Defense Tech, Enterprise Software, Hardware.
- Where is Join Capital located?
- Join Capital is headquartered in Berlin, DE.
- Does Join Capital lead rounds?
- Yes, Join Capital leads investment rounds.
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