Tien Tzuo is an angel investor and operator angel based in San Francisco, California, United States with 12 known investments: Siftery, Vybe, Omneky, Anchor, Pilot, Amplitude, HelloSign, Concord, Maximor AI, Vonage, Curogram and Oncue.
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Investment focus
- Focus
- Developer ToolsEnterprise SaaSSubscription Billing
Contacts
Tien Tzuo portfolio companies (12)
- Siftery
- Vybe
- Omneky
- Anchor
- Pilot
- Amplitude
- HelloSign
- Concord
- Maximor AI
- Vonage
- Curogram
- Oncue
Investor Profile
The listing covers sectors Consumer, SaaS and Travel, and focus areas Developer Tools, Enterprise SaaS and Subscription Billing. Startups operating in these areas may find Tien Tzuo relevant.
Tien Tzuo appears in Pre-Seed and Seed rounds across the known deals.
The portfolio and focus above give founders context on whether Tien Tzuo matches their raise.
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Frequently asked questions
Who is Tien Tzuo?
Tien Tzuo is an angel investor and operator angel based in San Francisco, California, United States with 12 known investments on file, among them Siftery, Vybe and Omneky. The sections above list the sectors and stages attached to that record.
What does Tien Tzuo invest in?
Listed sectors include Consumer, SaaS and Travel; listed focus areas include Developer Tools, Enterprise SaaS and Subscription Billing. 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 Tien Tzuo invest at?
The known deals of Tien Tzuo 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 Tien Tzuo?
An email address, a phone number and a LinkedIn page are on file for Tien Tzuo. 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