Skip to main content
Home / Leadership / Nancy Killefer
Certara Board Nancy Killefer

Nancy Killefer

Nancy Killefer served as a Senior Partner at McKinsey & Company, an international management consulting firm, from 1992 until her retirement in August 2013. She joined McKinsey in 1979 and held a number of leadership roles, including serving as a member of the firm’s governing board. Ms. Killefer also served as Assistant Secretary for Management, Chief Financial Officer, and Chief Operating Officer of the U.S. Department of the Treasury from 1997 to 2000 and as a member of the IRS Oversight Board from 2000 to 2005, including as Chair of the IRS Oversight Board from 2002 to 2004.

Ms. Killefer holds a B.A. in economics from Vassar College and an M.S. in management from the Massachusetts Institute of Technology.

Ms. Killefer also serves on the boards of directors of Facebook, Inc. since March 2020, Cardinal Health, Inc., a healthcare services company, since September 2015 and Natura & Company, a global personal care cosmetics group, since January 2020.