Mainstay is a developer of a chatbot platform that boosts enrollment, persistence, and completion at hundreds of colleges and universities. The company uses artificial intelligence and machine learning to facilitate the path to and through college. Specifically, Mainstay developed Oli, a chatbot that combines AI with human experts to provide free college guidance to all students. For their college partners, it eliminates repetitive tasks, helps colleges meaningfully engage students at scale, and provides deep insights into their pipeline of prospects.