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.
- Investor type
- VC
- Stages
- SeedSeries A
- Invests in
- Artificial IntelligenceCybersecurity
- Location
- Los Angeles, United States
- Typical check
- $625K
How to reach Justin Zeefe
Angels and operators like Justin Zeefe reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise.
Frequently Asked Questions
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.
How do I contact Justin Zeefe?
Unlock Justin Zeefe's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
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.