Top Hat is an educational technology company focused on transforming the higher education experience through interactive learning. Its comprehensive teaching platform empowers educators to actively engage students before, during, and after class through live polling, quizzes, discussions, and real-time feedback tools. The platform also includes features for attendance tracking, interactive assignments, and customized content creation, all designed to enhance engagement and improve outcomes in any course format. Top Hat also offers fully customizable, media-rich textbooks and open educational resources (OER), along with intuitive authoring tools that allow educators to create their own content. All materials support embedded assessments and AI-powered study support to make learning more active and engaging outside the classroom. At the center of the platform is Top Hat Ace, an AI-powered teaching and learning assistant that helps educators implement active learning more easily and gives students personalized, on-demand study support tailored to their course materials. The platform is accessible via https://toph.at/app, making it easy for instructors and students to collaborate in a flexible, digital-first environment built to support student success.