Private Lake is a venture fund and company builder focused on Behavioral AI technology that interprets and responds to human behavior across voice, expression, movement, and digital signals. We invest in platforms, models, and infrastructure that embed behavioral intelligence into how people live and work enhancing cognition, decision-making, and well-being.Our thesis is grounded in the belief that the most valuable AI systems will not displace human involvement but elevate it. We focus on specialized, behaviorally aware AI not general-purpose models, but precise applications that integrate into the rhythms of personal life and business operations. These tools adapt to context, drive engagement, and unlock value where human insight and AI performance converge.