An angel investor and operator angel based in Denver, Colorado, United States, Dan Siroker has 6 known investments: Milk Video, June, Haystack, Voicepanel, Navattic and MindPortal.
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Investment focus
- Sector
- AIHardwareHealthcareSaaS
Contacts
Dan Siroker portfolio companies (6)
- Milk Video
- June
- Haystack
- Voicepanel
- Navattic
- MindPortal
Investor Profile
The listing covers sectors AI, Hardware, Healthcare and SaaS, and focus areas Consumer Software, Customer Support, Data Privacy and Enterprise SaaS. Startups operating in these areas may find Dan Siroker relevant.
Stage-wise, the known deals cluster around Pre-Seed and Seed rounds.
The portfolio and focus above give founders context on whether Dan Siroker matches their raise.
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Frequently asked questions
Who is Dan Siroker?
Dan Siroker is an angel investor and operator angel based in Denver, Colorado, United States with 6 known investments on file, among them Milk Video, June and Haystack. The sections above list the sectors and stages attached to that record.
What does Dan Siroker invest in?
Listed sectors include AI, Hardware, Healthcare and SaaS; listed focus areas include Consumer Software, Customer Support, Data Privacy and Enterprise SaaS. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Dan Siroker invest at?
The known deals of Dan Siroker include Pre-Seed and Seed rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
How do I contact Dan Siroker?
An email address, a phone number and a LinkedIn page are on file for Dan Siroker. 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