TERASi
TERASi develops millimetre-wave wireless communications hardware for defence and security teams operating where conventional infrastructure or satellite links may be unavailable.
€11MSeed
LeadJC
Join Capital
join.capital ↗Activity from announced rounds
Activity in this selectionOct 16, 2026 · Sep 17, 2026
JOIN Capital invests early in deep-technology businesses addressing industrial, infrastructure, security and aerospace needs.
Investment focus
The firm describes a close working relationship with founders building technologies intended to scale and remain useful over time. Its published focus includes space systems, communications and technologies supporting resilience and security.
Activity recorded by RoundOS
In RoundOS, TERASi develops millimetre-wave communications, HyImpulse and ISPTech work on launch and propulsion systems, and enclaive provides confidential computing. These recorded financings show a selection of engineering-led infrastructure businesses; they are not a complete account of JOIN’s investments.
Sources
- Rounds participated in
- 1
- Confirmed lead rounds
- 1 All roles disclosed
- New companies
- 1 First participation on record · 0 follow-on
- Funding in participating rounds
- $12.6M 1 disclosed · full round size, not this investor’s share