Ms. Mazzarella has been the Chairman of the company since May 2023. She also serves as a Director at Waste Management since 2015. Ms. Mazzarella has been the Chairman, President, and Chief Executive Officer at Graybar Electric Company (Graybar) since 2013. 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 an Executive Vice President and Chief Operating Officer from 2010-2012. Ms. Mazzarella has been serving as a Director at the Federal Reserve Bank of St. Louis since 2015.

Mr. James C. Fish., Jr has been the Director, Chief Executive Officer and President of WM since November 2016. Prior to this, he served as the Chief Financial Officer and Executive Vice President of the company, and held various positions, including Senior Vice President of WM's Eastern Group, Area Vice President for Pennsylvania and West Virginia, Market Area General Manager for Massachusetts and Rhode Island, Vice President of Price Management, and Director of Financial Planning and Analysis. Prior to joining the company, Mr. Fish held finance and revenue management positions at Westex, Trans World Airlines, and America West Airlines.

Ms. Devina A. Rankin has been the Chief Financial Officer and the Executive Vice President of the company since February 2020. Previously, he served as the Chief Financial Officer and Senior Vice President of WM since February 2017. She joined the company in 2002, and held various Corporate Finance positions, including Assistant Treasurer and Treasurer. Prior to joining WM, Ms. Rankin worked at Arthur Andersen and Ernst & Young.

Mr. John J. Morris, Jr. has been the Chief Operating Officer and Executive Vice President of WM since January 2019. He has been associated the company for the past 20 years, and held various roles, including Senior Vice President of Operations from 2012 to December 2018, Chief Strategy Officer from March 2012 to July 2012, General Manager of NYC, Vice President of Greater Mid-Atlantic Area and Senior Vice President of Field Operations.

Mr. John Varkey Senior Vice President and Chief Information Officer of the company. Prior to this, he served as Vice President, Enterprise Digital Services. Before this, he served in CIO and other technology leadership roles for companies.