Shay Grinfeld is the Co-Founder and Managing Partner at Greenfield Partners, where he focuses on investments in SaaS. See sector focus and contact routes.
Shay Grinfeld is the Co-Founder and Managing Partner at Greenfield Partners, where he focuses on investments in SaaS, healthcare, and artificial intelligence after previously serving as a senior advisor to TPG Growth and leading alternative investing at Thylacine Capital. His investment thesis targets early-growth-stage technology companies, primarily in the cybersecurity, AI, infrastructure, and SaaS sectors, with a geographic focus spanning New York and Tel Aviv. While specific check sizes and lead/follow behavior are not explicitly detailed in available sources, Grinfeld has acted as the lead partner on 10 deals and serves on the boards of multiple portfolio companies including Avanan and BigPanda. Notable portfolio companies he leads include BigPanda (AIOps), Coralogix (observability), Capitolis, Mixtiles, and Goodship, alongside successful exits such as Avanan (acquired by Check Point) and Guardicore (sold to Akamai for $600M). Greenfield Partners manages over $1 billion across these targeted sectors, reflecting a significant commitment to growth-stage tech-enabled businesses. Grinfeld is also a former Israel Air Force F-16 fighter pilot and holds an
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