Grant Miller is an angel investor and operator angel based in Austin, Texas, United States. The known portfolio counts 12 companies: Overnight, Not Diamond, OpsLevel, LAIKA, RAD Security, Opal Security, Replenysh, WeDo, Fermyon Technologies, Okteto, KSOC Labs and Steadybit.
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Investment focus
- Stage
- Seed
Contacts
Grant Miller portfolio companies (12)
- Overnight
- Not Diamond
- OpsLevel
- LAIKA
- RAD Security
- Opal Security
- Replenysh
- WeDo
- Fermyon Technologies
- Okteto
- KSOC Labs
- Steadybit
Investor Profile
The listing covers sectors Consumer, Hardware and SaaS, and focus areas Cloud Infrastructure, Consumer Internet, Cybersecurity and DevOps. Startups operating in these areas may find Grant Miller relevant.
Stage-wise, the known deals cluster around Seed rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
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Frequently asked questions
Who is Grant Miller?
Grant Miller is an angel investor and operator angel based in Austin, Texas, United States with 12 known investments on file, among them Overnight, Not Diamond and OpsLevel. The sections above list the sectors and stages attached to that record.
What does Grant Miller invest in?
Listed sectors include Consumer, Hardware and SaaS; listed focus areas include Cloud Infrastructure, Consumer Internet, Cybersecurity and DevOps. 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 Grant Miller invest at?
The known deals of Grant Miller include 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 Grant Miller?
An email address, a phone number and a LinkedIn page are on file for Grant Miller. 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