David Elskamp is Co-Founder and CEO at Lexius, an AI-powered retail security platform that detects shoplifting in real time using existing store cameras. Lexius is part of Y Combinator's Winter 2026 batch and is based in San Francisco.

David graduated from Stanford with a Master's degree and holds a bachelor's in Computer Science from University of Twente, where he wrote his thesis on recognizing different types of crimes in cities. At age 14, he started David Elskamp Media, building a six-figure media agency while in high school.

David was named Most Entrepreneurial Student of the Year 2023 at University of Twente and was a semi-finalist for the Philips Innovation Award. He is a 2x founder with expertise in AI, machine learning, and computer vision technology.

Lexius was founded in 2024 and addresses the $120B annual loss U.S. retailers face from theft by turning existing security cameras into AI systems that detect shoplifting without new hardware. The company has worked with retail partners including Coop Vandaag and has attracted significant interest with an exploding waitlist.

Lexius leverages partnerships with top universities including UC Berkeley, MIT, and Stanford to build advanced AI models using behavioral recognition technology. The platform integrates seamlessly with existing camera systems and provides real-time alerts to prevent theft before shoplifters leave the store.