Join Capital | Activity | F4

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Team Portfolio Raise Champions Essays

F4/Join Capital/Activity

Join Capital Activity

Every public signal F4 has attached to this firm, with sources and cross-entity links.

Types

Time range

Investment

Co-led HyImpulse's $58M Series A Extension with Ace Capital Partners, joined by DLR as a new investor, to advance European rocket launch technology.

HyImpulse

HyImpulse Join Capital

cbinsights.comSEP 2, 2026

SEP 2, 2026

New Fund

European Investment Fund committed €50M to Join Capital's Fund III (targeting €235M) for European deeptech and dual-use investments.

Fund III

bloomberg.comMAR 4, 2026

MAR 4, 2026

Investment

Backed ISPTech's €5.5M seed round for in-space propulsion technology.

ISPTech

ISPTech Join Capital

axios.comFEB 26, 2026

FEB 26, 2026

Investment

Co-led enclaive's €4.1M seed round for multi-cloud confidential computing alongside the Amadeus APEX Technology Fund.

enclaive

enclaive Join Capital

tech.euFEB 3, 2026

FEB 3, 2026

Essay

Published a thesis essay on RF spectrum contention and portfolio company Quadsat's role in signal intelligence.

Finding the Signal in the Noise: Why Quadsat Matters

QuadsatJoin Capital

join-capital.medium.comOCT 3, 2025

OCT 3, 2025

Investment

Invested alongside the NATO Innovation Fund in Kreios Space's €8M seed round for Very Low Earth Orbit satellites.

Kreios Space

Kreios Space Join Capital

bloomberg.comSEP 19, 2025

SEP 19, 2025

Exit

Portfolio company Advae was acquired by Orisha.

Advae

AdvaeJoin Capital

cbinsights.comMAR 4, 2025

MAR 4, 2025