Private markets.
Public access
O3 Partners is a listed investment platform bringing together leading private-market fund managers across Europe. Through one scalable group, we offer public-market investors diversified access to venture capital, private equity and the growth of the managers behind them.
Built for
what's next
O3 Partners is a partnership as well as a close-knit family of private equity and venture capital investment and service provider entities with complementary regional and industry focus at different investment stages
Private markets. Public access.
O3 Partners is a listed investment platform bringing together leading private-market fund managers across Europe. Through one scalable group, we offer public-market investors diversified access to venture capital, private equity and the growth of the managers behind them.
Our Founder is our story
Péter Oszkó, Dr., Co-Founder and Managing Partner of O3 Partners, brings extensive experience in company building, finance and complex transactions. Following a career with various Big Four firms, he left his Managing Partner position in 2009 to serve as Hungary’s Finance Minister, taking on a one-year crisis management role during a critical period.
Building on this experience, he laid the foundations of OXO Holding in 2014, which grew into a broader European investment group through international expansion and strategic integrations, ultimately becoming today’s O3 Partners.
Expertise behind every decision
Andrea Novák is Head of Fund Operations at O3 Partners, building the group’s operational, regulatory and reporting architecture across multiple jurisdictions and fund structures. She came to fund operations by an unusual path seven years at the Budapest Stock Exchange, rising to Deputy Finance Director, before moving to the fund side to take on CFO and COO roles across venture capital, private equity and credit platforms. BlackRock added a global institutional dimension. She joined O3 Partners to build the operational backbone of a European investment platform in the middle of scaling.
Róbert Héjja is a seasoned investment professional with over 25 years of experience across private equity, venture capital, M&A and corporate finance. Throughout his career, he has built deep expertise in identifying investment opportunities, executing complex transactions and supporting the growth and strategic development of companies across Central and Eastern Europe.
Róbert Héjja is a seasoned investment professional with over 25 years of experience across private equity, venture capital, M&A and corporate finance. Throughout his career, he has built deep expertise in identifying investment opportunities, executing complex transactions and supporting the growth and strategic development of companies across Central and Eastern Europe.
We invest across borders to help outstanding founders and promising ventures scale beyond local limitations
O3 Partners connects stable yet high-growth businesses with capital that is not only smart and sector-aware, but geographically unbounded and capable of providing long-term, multi-cycle financing for growth. By combining regional expertise with a pan-European perspective, we simplify market entry, expansion, and scalability for selected founders ready to go beyond their home turf.
We operate with unified governance while ensuring independent, yet thorough investment decisions
Our framework provides transparency for LPs, while competitive operational efficiency and at the same time independent decision-making for family member GPs. Our integrated portfolio management system streamlines deal flow, valuations, risk management, and follow-on investments. This structure enables more efficient capital allocation and better risk-adjusted results.
We offer extensive market access, a completely unique pipeline and even particular co-investment opportunities
The diversity of O3 Partners provides access to exceptional market depth and unique deal information, which we use in our continuously evolving data-driven approach to select the best investment opportunities. This way, our investors can not only get the latest market updates, but also have the chance to take advantage of investment opportunities that are relevant to them.
Family Members
O3 Partners brings together a group of established private equity and venture capital companies across Europe, combining strong local market expertise with the scale and reach of an international investment group.
Catalyst NXT Ventures
3TS Capital
O3 Secondaries
OXO Labs
Building beyond borders?
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