Athos Capital is a Madrid-based early-stage venture capital firm investing in software and technology companies across Spain and Europe. The firm focuses on B2B SaaS, marketplaces, and tech-enabled services, supporting entrepreneurs with global ambitions.
Deal activity decreased year-over-year (3 deals in the last 12 months vs 5 prior). Average disclosed round size is $14.7M (across 12 rounds with reported amounts).
Portfolio
34
Fund Size
—
Top Stage
Unknown
Last 12 Mo
3
Team
FC
Fernando Castiñeiras
Managing Partner
CA
Carlo Agostinelli
Investment Director
FS
Fred Schulte-Hillen
Principal and Portfolio Manager
SW
Samuel W.
Investment Analyst
ZL
Zengjie LIN
Investment Analyst
MM
Matthew Moskey
Chief Investment Officer
JC
James Chia
Portfolio Manager
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
41 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 AAVantgarde Bio | Series B | — | Nov 2025 |
 Acoru | Series A | — | Oct 2025 |
 MRM Health | Series B | — | Sep 2025 |
 Shakers | Series A | — | May 2025 |
 Haya Therapeutics | Series A | $65M | May 2025 |
| Acoru | Seed | — | Apr 2025 |
| SSycai Medical | Unknown | — | Jan 2025 |
 AIgnostics | Series B | $34M | Oct 2024 |
 Ciudadela | Unknown | — | Jan 2024 |
 Harbiz | Unknown | — | Jan 2024 |
| CCiudadela | Unknown | — | Jan 2024 |
 Harbiz | Unknown | — | Jan 2024 |
| Shakers | Seed | — | Oct 2023 |
 Erudit AI | Series A | $10M | Sep 2023 |
| AAMSilk GmbH | Series C | — | Apr 2023 |
| KKaleidos | Series A | $12M | Feb 2023 |
 Penpot | Unknown | $8M | Sep 2022 |
 Zenrows | Unknown | — | Jan 2022 |
| Harbiz | Unknown | $5.5M | Jan 2022 |
| Harbiz | Unknown | — | Jan 2022 |
| FFroged | Seed | — | Jan 2022 |
 Genially | Series B | — | Sep 2021 |
 Mitto | Seed | — | Sep 2019 |
 Mitto | Seed | — | Sep 2019 |
 Lingokids | Series A | $6M | Oct 2018 |
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Top Co-Investors
ATHOS13 shared
JME Ventures7 shared
Banco Sabadell4 shared
Brighteye Ventures4 shared
Octopus Ventures4 shared
Big Sur Ventures3 shared
Decibel3 shared
Telefonica3 shared
Market One Capital3 shared
FJ Labs3 shared
Earlybird Venture Capital2 shared
Schroders Capital2 shared
Sofinnova Partners2 shared
Adevinta Ventures2 shared
IGNIA2 shared
Fondo Bolsa Social2 shared
33N Ventures2 shared
Adara Ventures2 shared
4Founders Capital2 shared
Encomenda2 shared
Last updated: 7 October 2026