Greg Sullivan

Greg Sullivan is a former Fortune Global CIO, CTO, and CEO and a Founding Partner of CIOSO Global, where he advises boards and executive teams on cybersecurity, AI governance, and enterprise technology risk. With leadership experience spanning national security and large-scale global operations, he helps organizationsm operationalize responsible AI adoption, strengthen resilience, and meet evolving regulatory expectations. Sullivan is a CISSP and a board member and senior advisor to organizations navigating high-consequence technology and risk decisions.