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VC FundPuts its own capital into companiesLAST VERIFIED Oct 2026 · 8 SOURCES

Athos Capital

Also known as Athos Capital, SGEIC, S.A., Capitana Venture Partners

Madrid/Barcelona early-stage software VC (2016) that merged with Capitana Venture Partners in 2021; three funds, the latest Athos Capital Fund III (2026); 40+ startups backed.

Not ATHOS KG, the Strüngmann family office in Germany (profiled as athos-kg).

HEADQUARTERS
Madrid, Spain
FOUNDED
2016
AUM
—
OUTSIDE CAPITAL
Yes
TEAM LISTED
5 people

Focus

STAGES
SeedSeries A
SECTORS
Software & SaaSArtificial IntelligenceFintech
ASSET MIX
Venture capital
GEOGRAPHY
Spain

Overview

Athos Capital is an early-stage investor based in Madrid and Barcelona that invests in software and technology, mostly in Spain. It was created in 2016 by Fernando Castiñeiras and merged in January 2021 with Capitana Venture Partners (founded 2015, led by Juan Filiberto Martínez), the first merger of Spanish venture capital managers, with €45M under management at the time. It has invested through Athos Capital Fund I (2017), Capitana Tech Fund, Athos Capital Fund II (2021, target €30–40M) and Athos Capital Fund III (2026).

Investment thesis

Seed and Series A digital and technology companies, mainly software (AI, design, content creation, fintech, B2B marketplaces and SaaS), mostly in Spain.

PORTFOLIO (12)

  • GeniallyNOTABLE
    Software & SaaS
  • LingokidsNOTABLE
    Education
  • Penpot
    Software & SaaS
  • Restb.ai
    Artificial Intelligence · Exited
  • Unnax
    Fintech · Exited
  • ElectronicID
    Software & SaaS · Exited
  • Zenrows
    Software & SaaS
  • Shakers
    Software & SaaS
  • Acoru
    Fintech
  • Ciudadela
    Real Estate & PropTech
  • Kaitoi
    Artificial Intelligence · since 2026
  • Spacebackend
    Space · since 2026

People

  • Fernando Castiñeiras
    Partner · source
  • Juan Filiberto Martínez
    Partner · source
  • Robert Tomas
    Partner · source
  • Marta Hidalgo
    Finance · source
  • Elisabet Garriga
    Operations · source

Links

Frequently asked questions

Athos Capital is a VC fund based in Madrid, Spain, founded in 2016.

Yes. Athos Capital invests its own capital in private companies.

Athos Capital invests at Seed and Series A stages in Software & SaaS, Artificial Intelligence and Fintech.

Key people at Athos Capital include Fernando Castiñeiras (Partner), Juan Filiberto Martínez (Partner), Robert Tomas (Partner) and Marta Hidalgo (Finance).

Athos Capital's investments include Genially, Lingokids, Penpot, Restb.ai, Unnax, ElectronicID, Zenrows and Shakers, among others.

Athos Capital states that it reviews opportunities through introductions only.

Yes. Athos Capital manages capital from outside investors.