Justin Zeefe
Founding Partner at Green Flag Ventures
Los Angeles, United States
Justin Zeefe, Founding Partner at Green Flag Ventures is an active investor based in Los Angeles, United States. This profile covers what Justin Zeefe backs, at which stage, and how founders can reach out in 2026.
Justin Zeefe is Founding Partner at Green Flag Ventures, investing in early-stage Ukrainian tech with an emphasis on AI and Dual-Use products.
Justin Zeefe invests in Artificial Intelligence and Cybersecurity, typically at Seed and Series A.
- Location
- Los Angeles, United States
- Typical check
- $625K
What does Justin Zeefe invest in?
- Investor type
- VC
- Invests in
- Artificial IntelligenceCybersecurity
Where is Justin Zeefe based?
Justin Zeefe is based in Los Angeles, United States.
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- Startup investors in Los AngelesStartup investors in the United States
How to reach Justin Zeefe
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About this profile
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Cite this page
Round Funded. "Justin Zeefe." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/justin-zeefe
Frequently Asked Questions
Who is Justin Zeefe?
Justin Zeefe, Founding Partner at Green Flag Ventures is an active investor based in Los Angeles, United States. Justin Zeefe invests in Artificial Intelligence and Cybersecurity, typically at Seed and Series A.
What does Justin Zeefe invest in?
Justin Zeefe invests in Artificial Intelligence and Cybersecurity, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Justin Zeefe invest at?
Justin Zeefe typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Justin Zeefe's typical check size?
Justin Zeefe typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
Where is Justin Zeefe based?
Justin Zeefe is based in Los Angeles, United States.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.
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