Mary O’Sullivan

Mary O’Sullivan is the manager of learning and development at PSA Security Network, where she leads PSA University — the platform that brings together technical training, professional skills and career development tools for integrators and security professionals. With more than a decade in higher education before transitioning into the security industry, O’Sullivan draws on her background in communication, education, and instructional design to create learning experiences that are both practical and impactful. She is passionate about connecting operations to strategy and making training accessible, relevant, and actionable.