Justin Zeefe

September 8, 2023
Justin Zeefe is Founding Partner at Green Flag Ventures; a dual-US/Ukraine-based venture capital firm investing in early-stage, innovative Ukrainian technology startups. Prior to co-founding Green Flag, Justin co-founded Nisos: the Managed Intelligence Company, which delivers smart defense and effective response against advanced threat actors, disinformation, and abuse of digital platforms for the Fortune 1000. Before co-founding Nisos, Justin served for a decade in the US Government, pursuing & countering sophisticated digital adversaries.

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