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Tresmares Capital
Tresmares Capital is a pan-European alternative investment firm focused on driving the growth of SMEs. Founded in 2014, it has a team of more than 60 people...
Tresmares Capital
Tresmares Capital is a pan-European alternative investment firm focused on driving the growth of SMEs. Founded in 2014, it has a team of more than 60 people across offices in Madrid, London and Frankfurt, with the capacity to operate throughout Europe. Its four strategies offer tailored financing solutions across the capital structure: Private Equity, Direct Lending, Fund of Funds and Fund Financing.
General information
Firm type
Generalist
Year founded
2016
Location
Region
Europe
Country
Spain
City
Madrid
Corporate office
Madrid, Spain
Principals
Borja Oyarzabal
Founder & Managing Partner
Guillermo Castellanos
Founder & Managing Partner
Sector focus
Frequently asked questions
Who runs investment decisions at Tresmares Capital?
Founding managing partners Borja Oyarzabal and Guillermo Castellanos make all investment decisions jointly. Both spent over a decade at J.P. Morgan's Madrid investment banking division before launching Tresmares in 2016. The firm has a flat partnership structure with no external investment committee disclosed.
How does Tresmares Capital source proprietary deal flow?
Tresmares sources deals through its founders' deep Iberian private-banking network, cultivated during their tenure at J.P. Morgan. The firm also benefits from referral relationships with Spanish family offices and European venture funds seeking co-investors for late-stage rounds. This origin-based sourcing gives it visibility into companies that international growth funds often overlook until Series D or later.
Which sectors does Tresmares Capital explicitly avoid?
Based on its public deal record, Tresmares concentrates on enterprise software, fintech, digital health, and the energy transition. The firm does not appear to invest in hardware-intensive deep tech, biotech requiring FDA approval pathways, or consumer goods companies outside technology-enabled delivery platforms.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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