David Andrew Tietjen Wiener is a Partner at Beresford Ventures, whose known portfolio counts 8 companies.
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Investment focus
- Focus
- BiotechConstruction TechDigital HealthLedger FundNLP
Contacts
Affiliated funds' portfolios
Partner at Beresford Ventures, whose known portfolio counts 8 companies
- Justpoint
- Hyivy Health
- Vincere Biosciences
- VoiceScript
- ikas
- CheckToBuild
- Dynami Battery
- Vistim Labs
Investor Profile
David Andrew Tietjen Wiener is listed against sectors AI, Hardware, Healthcare and Real Estate, and focus areas Biotech, Construction Tech, Digital Health and Ledger Fund in the database.
Stage-wise, the deals at Beresford Ventures cluster around Pre-Seed, Seed and Series A rounds.
The firm portfolio and the focus above give founders context on whether David Andrew Tietjen Wiener matches their raise.
Colleagues at Beresford Ventures
Mert Ozyurek
Manager / Partner
Orlando, United States
Jim Balaschak
Manager / Partner
Winter Park, United States
Scott Saliterman
Investor
Miami, United States
Amy Recht
Manager
Tallahassee, United States
Jim Horowitz
Partner
Port St Lucie, United States
Frequently asked questions
Who is David Andrew Tietjen Wiener?
David Andrew Tietjen Wiener is a venture capital investor based in Miami Beach, Florida, United States, listed as Partner at Beresford Ventures. The known portfolio of that firm counts 8 companies. That portfolio belongs to the firm, not to David Andrew Tietjen Wiener personally.
What does David Andrew Tietjen Wiener invest in?
Listed sectors include AI, Hardware, Healthcare and Real Estate; listed focus areas include Biotech, Construction Tech, Digital Health and Ledger Fund. 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 Andrew Tietjen Wiener invest at?
Beresford Ventures appears in Pre-Seed, Seed and Series A rounds across its known deals, and David Andrew Tietjen Wiener 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 Andrew Tietjen Wiener listed at?
David Andrew Tietjen Wiener is listed as Partner at Beresford Ventures. 5 other people in the database share a firm with David Andrew Tietjen Wiener.
How do I contact David Andrew Tietjen Wiener?
An email address and a LinkedIn page are on file for David Andrew Tietjen Wiener. 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