Investing in Early-Stage Tech
to Forge Strategic Strongholds.

The next industrial edge isn’t flashy – it’s foundational.
We invest early, stay close and build companies that can handle the world’s toughest problems. If it can’t lead, scale and last, it’s not worth building.

Defence

Space & Aerospace: Developing reusable spacecraft, cutting-edge satellite systems, and next-gen propulsion technologies to position Europe at the forefront of space exploration and security.

Surveillance & Intelligence: Advancing digital twin technology, next-generation surveillance systems, and spacecraft for space security and debris removal, enhancing intelligence and situational awareness.

Enterprise

Quantum & Advanced Computing: Driving innovation in quantum computing, quantum networking, and high-performance computing to enable secure communications and unprecedented computational capabilities

AI & Cybersecurity: Leveraging AI-driven systems for predictive cybersecurity, workplace safety, and informed decision-making to counter evolving threats and strengthen operational resilience.

Industrial

Advanced Materials & Manufacturing: Pushing the boundaries of lightweight materials, integrated photonic circuits, and advanced manufacturing to create stronger, more efficient, and highly capable defence platforms.

Autonomous Systems & Robotics: Innovating in modular robotics, autonomous mobile systems, and unmanned vehicles to enhance automation and operational effectiveness

Here's the latest

21.03.25

Join Capital

Heise Online

21.03.25

Swisscom and German start-up test Quantum security solution
For quantum-safe communication, Swisscom and Quantum Optics Jena have tested the transmission of keys for symmetric encryption.

Heise Online

Swisscom and German start-up test Quantum security solution

29.01.25

Join Capital

Medium

29.01.25

The Western World — and especially Europe — needs DARPA
Mission2044 panel in New YorkThe Western World — and especially Europe — needs a DARPAThis article is published following a fireside chat between Dr. Daniel Carew, Partner at Join Capital, and Sha-Chelle Manning, Chief of Commercial Strategy at DARPA, during the Mission2044 event in New York.In 1957, the Soviet Union launched the world’s first satellite, Sputnik 1....

Medium

The Western World — and especially Europe — needs DARPA

28.11.24

Join Capital

Medium

28.11.24

Enabling AI Governance at Scale: Why We Invested in Calvin Risk
Calvin Risk founders Julian Riebartsch (CEO) and Syang Zhou (CTO)On the individual level, AI has been a widely discussed, recognised, and in-demand buzzword for quite some time now. On an organisational level, however, despite the rapid acceleration of AI initiatives, AI projects are stuck in deployment because the societal and financial...

Medium

Enabling AI Governance at Scale: Why We Invested in Calvin Risk

30.10.24

Join Capital

Medium

30.10.24

“Defence and the Commercial Sector are Intertwined”: A View from Ukraine
What can and should the West be learning from the war in Ukraine? In this article, Dr. Daniel Carew — the head of defence and strategic technology investment at Join Capital — shares his impressions of Kyiv and his thoughts about the future of European defence.By Dr. Daniel CarewI lead the Strategic Technology investment strategy at...

Medium

“Defence and the Commercial Sector are Intertwined”: A View from Ukraine

12.09.24

Join Capital

Medium

12.09.24

Empowering Secure Communication in the Quantum Age: Why We Invested in Quantum Optics Jena
Quantum Optics Jena presenting at Join Capital Portfolio Day 2024Encryption technologies are vital to maintaining trust in today’s interconnected world. They help to secure critical infrastructure, privacy in communications, IP and trade secrets and confidential business data. Yet, current mathematics-based encryption technologies are increasingly vulnerable to the growing sophistication of cyberattacks.Fast-forward...

Medium

Empowering Secure Communication in the Quantum Age: Why We Invested in Quantum Optics Jena