Ofer Schreiber, Senior Partner and Head of Israel Office at YL Ventures. See sector focus and contact routes.
Ofer Schreiber, Senior Partner and Head of Israel Office at YL Ventures, invests primarily in early-stage cybersecurity startups (seed to Series B) with a focus on deep proprietary technology and strong engineering capabilities. His firm typically makes few, selective investments per year to provide intensive support, with check sizes ranging from $10M seed rounds to $41M Series B rounds in recent deals like Aim Security and Grip Security. Notable portfolio companies include cybersecurity unicorns Axonius and Orca Security, as well as acquired firms FireLayers (acquired by Proofpoint for $55M) and BlazeMeter (acquired by CA). Schreiber’s distinctive thesis emphasizes capital efficiency, large Total Addressable Markets (TAM), and investing only in sectors where YL has deep expertise, particularly cybersecurity and enterprise software.
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