O3

Meet the

O3 Family members

OXO Labs

OXO Labs is a Budapest-based technology incubator founded in 2014 that supports early-stage startups across Central and Eastern Europe. It focuses on helping innovative digital and tech-driven companies scale through strategic investment, hands-on mentoring, and access to regional and international networks. OXO Labs has played a key role in fostering the startup ecosystem in Hungary, with a portfolio that spans sectors such as fintech, mobility, healthtech, and SaaS, and it continues to serve as an innovation hub aligned with O3 Partners’ long-term investment and growth strategy.

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3TS Capital Partners

3TS Capital Partners is a European technology-focused growth capital firm founded in 1999 that backs high-potential small and medium-sized companies across sectors such as software, internet, media & communications, and tech-enabled services. It plays the role of an active partner helping portfolio companies scale via strategic guidance, operational support, and leveraging industry networks. The firm is regionally anchored in Central & Eastern Europe and in the DACH region and invests across stages from expansion to buyouts, deploying EUR 3-7 million per deal.

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Catalyst NXT Ventures

Catalyst NXT Ventures is a Bucharest-based venture capital firm founded in 2012 that specializes in providing early stage capital to technology and tech-enabled companies in Romania and the broader CEE region. Through its funds, it invests typically in the €1m–€3m range in scaling startups with already launched products and capable management teams, offering not only capital but active strategic guidance, operational support, and access to co-investors and networks. Over time, Catalyst has been instrumental in facilitating exits (such as SmartBill) and has backed companies like Adapta Robotics and Footprints AI, aiming to catalyze local leaders into regional or global challengers.

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O3 Secondaries

O3 Secondaries N.V. is an open-ended, evergreen vehicle established in 2026 to finance new secondary investments and profitable portfolio companies across Europe, with a strong focus on the CEE & DACH regions. The vehicle provides liquidity solutions for existing shareholders while supporting high-potential businesses with flexible capital structures designed to create long-term value. It targets profitable or near- breakeven companies as well as high-growth businesses in the scaling phase, investing through secondary transactions or combined secondary and primary financings.

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