Day One Capital is a venture capital firm. Based in Budapest, Hungary. Among the 19 companies in the known portfolio are Allonic, Miros, Orqa, Whalebone, Colossyan and Hithium Energy Storage.
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Investment focus
Who to pitch at Day One Capital
Day One Capital portfolio companies (19)
- Allonic
- Miros
- Orqa
- Whalebone
- Colossyan
- Hithium Energy Storage
- Perciv AI
- Qneiform
- ABZ Innovation
- Commsignia
- Huasun Energy
- Juewu Technology
- Dehu Coating Film
- Resoloon
- Anbo Technology
- Guangjing Energy
- Guotai
- Linchao Jewelry
- Zhen Gong Spirits
Co-investors
Funds that share portfolio companies with Day One Capital.
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About Day One Capital
The firm's listing covers sectors AI, Consumer, Hardware and SaaS, and focus areas AI Applications, Computer Vision, Cybersecurity and Developer Tools; known deals cluster at Pre-Seed, Seed and Series A.
Of the 8 people on file at Day One Capital, Csaba Kakosy (Managing Partner), Elek Straub (Founding Partner) and Gyorgy Simo (Managing Partner) are listed as the contacts to approach first.
Across the known portfolio, 20 co-investors appear alongside Day One Capital, including Keen Venture Partners, Tiny Supercomputer Investment Company and China Growth Capital.
Frequently asked questions
What is Day One Capital?
Day One Capital is a venture capital firm based in Budapest, Hungary, with a known portfolio of 19 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Day One Capital invest in?
Listed sectors include AI, Consumer, Hardware and SaaS; listed focus areas include AI Applications, Computer Vision, Cybersecurity and Developer Tools. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Day One Capital invest at?
The known deals of Day One Capital include Pre-Seed, Seed and Series A rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Day One Capital?
3 of the 8 people on file at Day One Capital are listed as contacts for the firm. All 8 have their own profile page.
How do I contact Day One Capital?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 8 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal