Gil Elbaz is a serial entrepreneur and data infrastructure pioneer who co-founded TenOneTen Ventures. His career has been defined by building foundational data and AI technologies that have shaped the modern internet. Gil co-founded Applied Semantics, the company that created the contextual advertising technology which became Google AdSense after Google acquired the company in 2003. At Google, he served as Engineering Director of the Santa Monica office, helping build out Google's presence in Los Angeles. He then founded Factual Inc., a location data platform that aggregated and organized the world's data, making it accessible and contextual. Factual merged with Foursquare in 2020, where Gil now serves as Co-Chairman. Gil also founded the Common Crawl Foundation, an open repository of web crawl data that has become one of the most important datasets in AI research — it has been used to train many of the world's largest language models, including GPT and other foundational models. Beyond investing, Gil serves on the boards of the X PRIZE Foundation and is a Trustee of Caltech. He is a member of the IAB Mobile Board.