Investor profile
David Birnbaum
Accelerator, Venture capital & Co-founder and Managing Partner at Five Four Ventures
David Birnbaum is a Co-founder and Managing Partner at Five Four Ventures, whose known portfolio counts 7 companies.
Is David Birnbaum a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
Contacts
Affiliated funds' portfolios
Co-founder and Managing Partner at Five Four Ventures, whose known portfolio counts 7 companies
- Caraway
- Fernish
- David Energy
- Miss Grass
- House of Wise
- Zygo
- The Sill
Investor Profile
David Birnbaum is listed against sectors Commerce and Consumer, and focus areas D2C, E-Commerce, Lifestyle Brands and Subscription in the database.
Stage-wise, the deals at Five Four Ventures cluster around Seed and Series A rounds.
The firm portfolio and the focus above give founders context on whether David Birnbaum matches their raise.
Colleagues at Five Four Ventures
Frequently asked questions
Who is David Birnbaum?
David Birnbaum is an accelerator partner and venture capital investor based in New York, United States, listed as Co-founder and Managing Partner at Five Four Ventures. The known portfolio of that firm counts 7 companies. That portfolio belongs to the firm, not to David Birnbaum personally.
What does David Birnbaum invest in?
Listed sectors include Commerce and Consumer; listed focus areas include D2C, E-Commerce, Lifestyle Brands and Subscription. 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 Birnbaum invest at?
Five Four Ventures appears in Seed and Series A rounds across its known deals, and David Birnbaum is listed there as Co-founder and Managing 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 Birnbaum listed at?
David Birnbaum is listed as Co-founder and Managing Partner at Five Four Ventures. One other person in the database shares a firm with David Birnbaum.
How do I contact David Birnbaum?
An email address and a LinkedIn page are on file for David Birnbaum. 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.
Skip the browsing. Let AI find your ideal investors in one minute.
Paste your startup website and AI picks your best-fit investors out of 135,000+ profiles.
Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal