Justin Miller is an angel investor and operator angel based in San Diego, California, United States with 2 known investments: Contactually and Sapho.
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Investment focus
Contacts
Justin Miller portfolio companies (2)
- Contactually
- Sapho
Investor Profile
The listing covers sectors Commerce, Consumer, Hardware and SaaS, and focus areas Advertising, Cloud Infrastructure, Consumer Software and Enterprise SaaS. Startups operating in these areas may find Justin Miller relevant.
The portfolio and focus above give founders context on whether Justin Miller matches their raise.
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Frequently asked questions
Who is Justin Miller?
Justin Miller is an angel investor and operator angel based in San Diego, California, United States with 2 known investments on file, among them Contactually and Sapho. The sections above list the sectors attached to that record.
What does Justin Miller invest in?
Listed sectors include Commerce, Consumer, Hardware and SaaS; listed focus areas include Advertising, Cloud Infrastructure, Consumer Software 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.
How do I contact Justin Miller?
A phone number and a LinkedIn page are on file for Justin Miller. They are readable inside RaiseHunt after you create an account. The database holds no email address for this profile.
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Data: RaiseHunt investor dataset · Snapshot 6 September 2026 · How this data is built · Report a correction or request removal