William Ou is an angel investor based in São Paulo, Brazil with one known investment, ZiO Health.
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Investment focus
Contacts
William Ou portfolio company (1)
- ZiO Health
Investor Profile
The listing covers sectors Consumer, FinTech, Healthcare and SaaS, and focus areas Biotech, Cryptocurrency, Digital Health and Enterprise SaaS. Startups operating in these areas may find William Ou relevant.
The stage tags on this profile are Pre-Seed and 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 William Ou?
William Ou is an angel investor based in São Paulo, Brazil with one known investment on file, ZiO Health. The sections above list the sectors and stages attached to that record.
What does William Ou invest in?
Listed sectors include Consumer, FinTech, Healthcare and SaaS; listed focus areas include Biotech, Cryptocurrency, Digital Health 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 William Ou invest at?
The database lists William Ou for 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 William Ou?
An email address, a phone number and a LinkedIn page are on file for William Ou. 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 6 September 2026 · How this data is built · Report a correction or request removal