An operator angel, Arthur Kosten has 2 known investments: Preply and Knowunity.
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Investment focus
- Stage
- Seed
- Focus
- Co-founder Booking.comContentEdTechMarketplacesTravelTech
Contacts
Arthur Kosten portfolio companies (2)
- Preply
- Knowunity
Investor Profile
The known portfolio sits in sectors Commerce, Education, FinTech and Travel, and focus areas Co-founder Booking.com, Content, EdTech and Marketplaces.
Stage-wise, the known deals cluster around Seed rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
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Frequently asked questions
Who is Arthur Kosten?
Arthur Kosten is an operator angel with 2 known investments on file, among them Preply and Knowunity. The sections above list the sectors and stages attached to that record.
What does Arthur Kosten invest in?
Listed sectors include Commerce, Education, FinTech and Travel; listed focus areas include Co-founder Booking.com, Content, EdTech and Marketplaces. 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 Arthur Kosten invest at?
The known deals of Arthur Kosten include 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 Arthur Kosten?
A LinkedIn page is on file for Arthur Kosten. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 2 October 2026 · How this data is built · Report a correction or request removal