Tammie Siew is a General Partner & Co-Founder at Pebblebed, whose known portfolio counts 11 companies.
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Investment focus
- Sector
- AIHealthcareSaaS
Contacts
Affiliated funds' portfolios
General Partner & Co-Founder at Pebblebed, whose known portfolio counts 11 companies
- BottleCap AI
- Lemurian Labs
- Northflank
- Adaptive
- Cognee Inc
- OpenMind
- Kepler
- Ulysses Ecosystem Engineering
- Vidoc Security Lab
- Anomaly Bio
- Cognee
Investor Profile
Tammie Siew is listed against sectors AI, Healthcare and SaaS, and focus areas Biotech, Cloud Infrastructure, Cybersecurity and Data Analytics in the database.
Stage-wise, the deals at Pebblebed cluster around Pre-Seed, Seed and Series A rounds.
What the affiliated firm has backed is the closest available signal on whether Tammie Siew is worth approaching.
Colleagues at Pebblebed
Frequently asked questions
Who is Tammie Siew?
Tammie Siew is an accelerator partner and venture capital investor based in San Francisco, California, United States, listed as General Partner & Co-Founder at Pebblebed. The known portfolio of that firm counts 11 companies. That portfolio belongs to the firm, not to Tammie Siew personally.
What does Tammie Siew invest in?
Listed sectors include AI, Healthcare and SaaS; listed focus areas include Biotech, Cloud Infrastructure, Cybersecurity and Data Analytics. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Tammie Siew invest at?
Pebblebed appears in Pre-Seed, Seed and Series A rounds across its known deals, and Tammie Siew is listed there as General Partner & Co-Founder. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Tammie Siew listed at?
Tammie Siew is listed as General Partner & Co-Founder at Pebblebed. 2 other people in the database share a firm with Tammie Siew.
How do I contact Tammie Siew?
An email address, a phone number and a LinkedIn page are on file for Tammie Siew. 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