Ralph Arnold is an angel investor and operator angel based in Berlin, Germany. The known portfolio is one company, CardioCube.
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Investment focus
- Stage
- Pre-Seed
- Sector
- AIHealthcareSaaS
Contacts
Ralph Arnold portfolio company (1)
- CardioCube
Investor Profile
The listing covers sectors AI, Healthcare and SaaS, and focus areas Digital Health, Healthcare Operations, Machine Learning and MedTech. Startups operating in these areas may find Ralph Arnold relevant.
The stage tag on this profile is Pre-Seed.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
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Frequently asked questions
Who is Ralph Arnold?
Ralph Arnold is an angel investor and operator angel based in Berlin, Germany with one known investment on file, CardioCube. The sections above list the sectors and stages attached to that record.
What does Ralph Arnold invest in?
Listed sectors include AI, Healthcare and SaaS; listed focus areas include Digital Health, Healthcare Operations, Machine Learning and MedTech. 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 Ralph Arnold invest at?
The database lists Ralph Arnold for Pre-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 Ralph Arnold?
A LinkedIn page is on file for Ralph Arnold. 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 6 September 2026 · How this data is built · Report a correction or request removal