Keith Gelles is a serial founder and technology executive with 25+ years building high-scale adtech, SaaS, and AI-driven products, currently advising clients as Founder & Chief Advisor of ThistleBrook Advisors while leading AI and traffic-optimization ventures at green ocean AI and Pulse Point. He has repeatedly translated machine learning, real-time data architectures, and product vision into commercial platforms—from scaling PointRoll to hundreds of employees and billions of impressions to pioneering interactive and connected-TV ad solutions at BrightLine and Medialets. Known for bridging strategy and hands-on engineering, he’s led CTO-level product and architecture work across fintech, biotech, media, and smart-city domains, often serving as fractional CTO/CPO. Keith’s background in computer science, mathematics and philosophy underpins a pragmatic approach to predictive modeling and system design that favors measurable business outcomes. Less obvious: he balances deep technical fluency with operational experience in real estate investing, giving him a practical investor’s lens on product-market fit and growth.
10 years of coding experience
28 years of employment as a software developer
Bachelor of Science (BS), in Computer Science, Mathematics & Philosophy, Bachelor of Science (BS), in Computer Science, Mathematics & Philosophy at University of Pittsburgh
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Keith Gelles - Founder, CEO & Chief Advisor at green ocean AI