Corporate Governance Biography

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Kathleen M. Mazzarella

Chairman, President and Chief Executive Officer, Graybar Electric Company, Inc.
Kathleen M. Mazzarella is president, chief executive officer and chairman of the board of directors of Graybar Electric Company, Inc., a leading distributor of electrical, communications and data networking products, provider of related supply chain management and logistics services and one of the largest employee-owned companies in North America. During her 35-year tenure at Graybar, Ms. Mazzarella has held executive-level positions in sales, human resources, strategic planning and marketing. She served as executive vice president and chief operating officer from 2010-2012. She was appointed president and CEO in 2012 and became chairman of Graybar’s board of directors the following year. Ms. Mazzarella also currently serves on the board of the Federal Reserve Bank of St. Louis, St. Louis Regional Chamber, United Way of Greater St. Louis, Civic Progress, the Saint Louis Club and the NAW Institute.



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