Mark Sullivan

As Chief Operating Officer, Mark Sullivan is responsible for IDC’s worldwide financial reporting, analysis, and planning. He is a member of IDC’s senior management committee.

Mr. Sullivan joined IDC in 1992 as director of finance. He was named vice president, finance in 1998, and CFO in 1999.

Prior to joining IDC, Mr. Sullivan served as controller from 1988 –1992 for CW Publishing, publisher of Computerworld. He joined International Data Group in 1987 as a financial analyst.

Prior to his IDG tenure, he held various financial analyst positions at General Electric Company manufacturing operations in Michigan, Ohio, and Massachusetts. He completed, with honors, General Electric’s Financial Management Program.

Mr. Sullivan earned his Bachelor of Arts degree in finance from Michigan State University.