Business Experience
Kathleen Mazzarella has served as Chair of Graybar Electric Company, Inc. (Graybar), a North American distributor of electrical, industrial, automation, and connectivity products and provider of related supply chain management and logistics services, since January 2013, as President and Chief Executive Officer since June 2012, and as a Director since January 2004. She is the first woman to lead Graybar since its founding in 1925.
Ms. Mazzarella previously served as Graybar’s Executive Vice President and Chief Operating Officer from December 2010 to June 2012. She joined Graybar in January 1980 and has held increasing roles of seniority, including Senior Vice President, Sales and Marketing, and Senior Vice President, Human Resources and Strategic Planning. Ms. Mazzarella has been instrumental in developing environmental, social, and governance practices for Graybar and, as a member and independent chair of the Board of Directors for Waste Management, focusing on driving sustainable operations that deliver innovation to customers. Under her leadership, Graybar has consistently invested in its community, actively cultivating an ownership culture, emphasizing integrity and fair opportunity, and it has earned recognition for its governance practices and as a top national workplace. Ms. Mazzarella is also a contributing author of Inside the Minds, a book on human capital management.
Ms. Mazzarella serves as Co-Chair for Concordance First Chance Campaign and as a Board Member for Greater St. Louis, Inc. She is a 2022 recipient of the inaugural St. Louis Titan 100 and an inaugural winner of the Modern Distribution Management Women in Distribution Leadership Award in 2021.