Day One Capital Fund III

Day One Capital

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Status

ACTIVE

Global HQ

Toronto, Canada

Countries of investment

United States
Singapore
United Kingdom
China
Germany
Switzerland
France
Italy
Poland
Central and Eastern Europe (CEE)
Denmark
Finland
Iceland
Norway
Sweden
Belgium
Netherlands
Luxembourg
Spain
Portugal
Southeast Asia

Investment stages

Pre-Seed
Seed
Series A

Industries

Robotics
Aerospace
Defense Tech
Enterprise Software
Software
Cybersecurity
AI
Deep Tech

About
Day One Capital focuses on AI, SaaS, healthtech, and deep-tech startups, particularly those based in Central and Eastern Europe. The firm looks for companies with strong product-market fit and the potential for rapid scalability. Day One Capital supports founders with strategic partnerships, go-to-market strategies, and expansion into global markets, particularly in Europe and the U.S.

Min check size: $318K
Max check size: $2.1M
Fund size: Unlock
NPS: Unlock

Investment Thesis

Day One Capital invests in early-stage startups in AI, SaaS, healthtech, and deep tech, with a particular focus on companies that can scale across Central and Eastern Europe (CEE). The firm supports high-growth companies with global expansion potential.

Lead investor: Unlock
Co Invest: Unlock
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Manager's Experience

Launched in Budapest in 2011 by Elek Straub (former chairman and CEO of Magyar Telekom), György Simó (credited with setting up the Hungarian portal Origo), and Csaba Kakosy (Hungary's economy and transport minister in 2007 and 2008), and backing Central and Eastern European founders since 2012. Reports about EUR 94M across its vehicles, including CEE Fund II at EUR 45M and the Creative Minds Fund at EUR 15M. Portfolio includes Colossyan, Orqa, Veridion, Whalebone, HeyReach, and Allonic, spread across Hungary, Croatia, Romania, the Czech Republic, and North Macedonia. Leads or co-leads pre-seed and seed rounds of EUR 300K to 2M in AI-native software for legacy industries, robotics and drones, cybersecurity and data infrastructure, defense and resilience technology, and software for creative industries.