David Greenbaum works as a Partner at Quiet Capital. The firm's known portfolio counts 19 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Partner at Quiet Capital, whose known portfolio counts 19 companies
- DISCO
- Swarm Aero
- SproutFi
- EON
- Impossible Metals
- Inertia
- Biossil
- DYNO
- Manifest OS
- Phoebe
- Science
- 21Shares
- and 7 more
Investor Profile
David Greenbaum is listed against sectors AI, Commerce, Consumer and FinTech, and focus areas Biotech, Content, Crypto and Developer APIs in the database.
Stage-wise, the deals at Quiet Capital cluster around Growth, Pre-Seed and Seed rounds.
The firm portfolio and the focus above give founders context on whether David Greenbaum matches their raise.
Colleagues at Quiet Capital
Alexander Kvamme
Founder & Investor
Menlo Park, United States
Michael Bloch
Partner
New York, United States
William Chmelar
Principal
New York, United States
Lee Linden
Founder
United States
Matt Humphrey
Partner
San Francisco, United States
Maura Kopko
Investor
Los Angeles, United States
Phuong M.
Partner
Irvine, United States
Kabir Masson
Partner & General Counsel
San Francisco, United States
Griffin Howard
Partner
San Francisco, United States
Daniel Gruneberg
Partner
United States
Frequently asked questions
Who is David Greenbaum?
David Greenbaum is an accelerator partner and venture capital investor based in San Francisco, California, United States, listed as Partner at Quiet Capital. The known portfolio of that firm counts 19 companies. That portfolio belongs to the firm, not to David Greenbaum personally.
What does David Greenbaum invest in?
Listed sectors include AI, Commerce, Consumer and FinTech; listed focus areas include Biotech, Content, Crypto and Developer APIs. 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 David Greenbaum invest at?
Quiet Capital appears in Growth, Pre-Seed and Seed rounds across its known deals, and David Greenbaum 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 David Greenbaum listed at?
David Greenbaum is listed as Partner at Quiet Capital. 10 other people in the database share a firm with David Greenbaum.
How do I contact David Greenbaum?
An email address and a LinkedIn page are on file for David Greenbaum. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds 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