Alex Teng works as a Partner at Fifty Years. The firm's known portfolio counts 16 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Partner at Fifty Years, whose known portfolio counts 16 companies
- Aalo Atomics
- Gridware
- Tangible
- Journey Clinical
- Adaption Labs
- Faction
- 64x Bio
- BIOS
- Deepcell
- Electroflow Technologies
- Noya
- Elicit
- and 4 more
Investor Profile
The listing covers sectors AI, Climate, Hardware and Healthcare, and focus areas Biotech, Clean Energy, Digital Health and Genomics. Startups operating in these areas may find Alex Teng relevant.
Stage-wise, the deals at Fifty Years cluster around Seed, Series A and Series B rounds.
What the affiliated firm has backed is the closest available signal on whether Alex Teng is worth approaching.
Colleagues at Fifty Years
Seth Bannon
Founder & investor
San Francisco, United States
Ela Madej
Founding Partner
San Francisco, United States
Piotr Wilam
Investor
Cracow, Poland
D. Scott Phoenix
Partner
Berkeley, United States
Chris Castig
Investor
United States
Frequently asked questions
Who is Alex Teng?
Alex Teng is a venture capital investor based in San Francisco, California, United States, listed as Partner at Fifty Years. The known portfolio of that firm counts 16 companies. That portfolio belongs to the firm, not to Alex Teng personally.
What does Alex Teng invest in?
Listed sectors include AI, Climate, Hardware and Healthcare; listed focus areas include Biotech, Clean Energy, Digital Health and Genomics. 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 Alex Teng invest at?
Fifty Years appears in Seed, Series A and Series B rounds across its known deals, and Alex Teng is listed there as Partner. 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 Alex Teng listed at?
Alex Teng is listed as Partner at Fifty Years. 5 other people in the database share a firm with Alex Teng.
How do I contact Alex Teng?
A LinkedIn page is on file for Alex Teng. 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 5 September 2026 · How this data is built · Report a correction or request removal