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Halleh Seyson

Executive Vice President
Chief Operating Officer

Halleh Seyson joined CATHEXIS as Senior Vice President in October 2019 and became the company's Executive Vice President and Chief Operating Officer in May 2020. As COO, Ms. Seyson is responsible for leading CATHEXIS operations, including client management, portfolio performance, and growth initiatives.
Ms. Seyson brings with her more than two decades of experience working in the federal, health, and information technology industries. Prior to CATHEXIS, Ms. Seyson’s leadership roles included Group VP at Social & Scientific Systems, where she led health policy, data analytics, and technology line of businesses and VP of Health IT at GDIT.
Ms. Seyson received her B.S. in Computer Science and M.S. in Information Systems and Engineering from George Mason University. She is a certified Project Management Professional (PMP) and Certified Scrum Master (CSM). She has a passion for mentoring young professionals and helps nonprofit organizations such as the Healthcare Information and Management Systems Society National Capital Area Chapter as a mentor. Ms. Seyson resides in Washington, D.C. with her husband, Geoffrey.