Michael Siek is a Managing Director at Dominari Securities, whose known portfolio counts 6 companies.
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Investment focus
- Stage
- GrowthLate-StageSeed
- Sector
- FinTech
Contacts
Affiliated funds' portfolios
Managing Director at Dominari Securities, whose known portfolio counts 6 companies
- SpaceX
- Kraken
- XAI
- Canva
- Polymarket
- Anduril Industries
Investor Profile
Founders in the listed sector FinTech fall inside that listing.
Dominari Securities appears in Growth, Late-Stage and Seed rounds across its known deals.
The firm portfolio and the focus above give founders context on whether Michael Siek matches their raise.
Colleagues at Dominari Securities
Frequently asked questions
Who is Michael Siek?
Michael Siek is a venture debt investor based in New York, United States, listed as Managing Director at Dominari Securities. The known portfolio of that firm counts 6 companies. That portfolio belongs to the firm, not to Michael Siek personally.
What does Michael Siek invest in?
Listed sectors include FinTech. 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 Michael Siek invest at?
Dominari Securities appears in Growth, Late-Stage and Seed rounds across its known deals, and Michael Siek is listed there as Managing Director. 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 Michael Siek listed at?
Michael Siek is listed as Managing Director at Dominari Securities. 2 other people in the database share a firm with Michael Siek.
How do I contact Michael Siek?
An email address, a phone number and a LinkedIn page are on file for Michael Siek. 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