Antti Karjalainen is an angel investor and operator angel based in San Francisco, California, United States with 4 known investments: UltiHash, Omenia, Robot Framework Foundation and Siili Solutions.
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Investment focus
- Sector
- AIFinTechHealthcareSaaS
Contacts
Antti Karjalainen portfolio companies (4)
- UltiHash
- Omenia
- Robot Framework Foundation
- Siili Solutions
Investor Profile
The listing covers sectors AI, FinTech, Healthcare and SaaS, and focus areas Application Integration, Data Analytics, Developer Tools and Enterprise SaaS. Startups operating in these areas may find Antti Karjalainen relevant.
Stage-wise, the known deals cluster around Pre-Seed and Seed rounds.
The portfolio and focus above give founders context on whether Antti Karjalainen matches their raise.
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Frequently asked questions
Who is Antti Karjalainen?
Antti Karjalainen is an angel investor and operator angel based in San Francisco, California, United States with 4 known investments on file, among them UltiHash, Omenia and Robot Framework Foundation. The sections above list the sectors and stages attached to that record.
What does Antti Karjalainen invest in?
Listed sectors include AI, FinTech, Healthcare and SaaS; listed focus areas include Application Integration, Data Analytics, Developer Tools and Enterprise SaaS. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Antti Karjalainen invest at?
The known deals of Antti Karjalainen include Pre-Seed and Seed rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
How do I contact Antti Karjalainen?
An email address, a phone number and a LinkedIn page are on file for Antti Karjalainen. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal