Board of Directors

Independent Director since: 2024

Tom Bené has four decades of experience executing on strategic business priorities and delivering financial growth for large companies. Since 2021, he has served as President and Chief Executive Officer of Breakthru Beverage Group, where he is focused on leading the company through a period of growth and expansion by driving new capabilities and innovation. Prior to his current role, he held several operations and business leadership roles at Sysco Corporation, including serving as President, Chief Executive Officer, and Chairman. Before joining Sysco in 2013, Mr. Bené spent over 20 years at PepsiCo in numerous roles of increasing responsibility and scale.

Mr. Bené has a proven track record of driving growth and modernizing business models throughout his career. Through his prior operations and management positions, Mr. Bené has gained valuable insight and knowledge in the areas of leadership and management development, corporate strategy development, merchandising, sales, marketing, revenue management, shared services and distribution and supply chain management.

Mr. Bené shares his deep experience in logistics, as well as his focus on differentiation through the use of technology and providing outstanding customer service, to further our Company’s growth and optimization strategy. In addition, his dedication to employee development complements the Company’s People First commitment.

Mr. Bené holds a Bachelor of Science degree in business administration from the University of Kansas.

Independent Director since: 2023

Before his retirement in 2024 from the positions of President, Chief Executive Officer and a Director of Chevron Phillips Chemical Company LLC, a global petrochemical joint venture of Chevron U.S.A Inc. and Phillips 66 Company, Bruce Chinn was focused on leading the company through a period of sustainable growth. Mr. Chinn has over 40 years of experience driving operational, safety, and financial results. Previously, he held several operations and business roles at Chevron Corporation, leading large, diverse organizations. In these roles, Mr. Chinn focused on performance, partnership, and safety, while striving for continued success in the business and community. Mr. Chinn began his career at DuPont, where he held positions of increasing responsibility in manufacturing, technical, commercial and business leadership at the U.S. and international level.

Mr. Chinn brings extensive knowledge of circular solutions and renewable energy that is aligned with WM’s strategic focus on making sustainability growth investments in our recycling and renewable energy businesses. His operations leadership expertise bolsters WM’s continued efforts to drive operating efficiencies, enhance our safety culture, and differentiate our service offerings. Mr. Chinn’s broad and expansive dedication to operating excellence and developing strong culture provides valuable perspective to WM’s Board, and his experience allows him to share specific insight into focus areas such as renewable energy transition, environmental regulation and compliance, international exposure, and risk management.

Mr. Chinn serves as a director of Celanese Corporation, a global chemical and specialty materials company. He also serves as a board director for the Texas A&M University Association of Former Students.

Mr. Chinn holds a bachelor of science degree in chemical engineering from Texas A&M University.

Jim Fish has served as Chief Executive Officer and a Director of WM since 2016, and served as our President from 2016 until May 2025. For nearly 25 years, Mr. Fish has held several key positions at WM, including President and Chief Financial Officer; Senior Vice President – 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.

Before joining WM, Mr. Fish held finance and revenue management positions at Westex, a Yellow-Roadway subsidiary, Trans World Airlines, and America West Airlines. He began his professional career at KPMG Peat Marwick.

Mr. Fish’s extensive leadership and operational experience, together with his tremendous understanding of the environmental services industry, are instrumental to development and successful execution of WM’s growth strategy to deliver stockholder value. Additionally, through his professional and educational experience, Mr. Fish has developed valuable expertise in accounting, external reporting, investor relations, human capital and performance management, and risk management. Mr. Fish oversees WM’s Digital organization and participates directly in matters related to cybersecurity and information security risk mitigation and response strategies.

As North America’s largest comprehensive environmental solutions provider, sustainability is embedded in all aspect of WM’s business. As Chief Executive Officer of WM, Mr. Fish has a thorough understanding of the risks and opportunities presented in the areas of sustainability and environmental protection. Mr. Fish is deeply involved in WM’s efforts to mitigate such risks and capitalize on such opportunities in order to deliver on our brand promise, ALWAYS WORKING FOR A SUSTAINABLE TOMORROW^®.

An important part of WM’s people first culture is the diversity of WM’s workforce, which includes nearly 63,000 employees. Mr. Fish’s active engagement with employees at all levels of the organization reflects his commitment to fostering an inclusive environment in which employees feel valued and connected to WM’s long term success.

Mr. Fish currently serves as a director of Caterpillar Inc., a leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. He also serves on the board of the Greater Houston Partnership.

Mr. Fish earned a bachelor’s degree in accounting from Arizona State University and a master’s degree in business administration, with emphasis on finance, from the University of Chicago. 

Independent Director since: 2015

Andrés Gluski has served as President, Chief Executive Officer and a Director of The AES Corporation, a Fortune 500 global energy company, since 2011. Mr. Gluski began his tenure at AES in 2000 and previously served as Executive Vice President and Chief Operating Officer from 2007 to 2011. Under his leadership, AES has become a leader in implementing clean technologies, including energy storage and renewable power.  Through his professional experience, Mr. Gluski has extensive knowledge with respect to evaluating renewable energy strategies, and he has developed expertise in considering and evaluating climate-related risks and opportunities, which is directly applicable to WM’s business and our sustainability growth strategy. Mr. Gluski has experience in the development of sustainability and corporate social responsibility goals, as well as oversight of compliance programs.

Prior to joining AES, Mr. Gluski served in a broad range of roles in the public and private sectors, including working as Executive Vice President of Corporate and Investment Banking in Grupo Santander. Mr. Gluski served as a member of the President’s Export Council from 2013 to 2016 and served as an expert witness at U.S. Congressional hearings on the subject of energy policy. He currently serves as Chairman of Council of the Americas and co-chair of the World Economic Forum’s Electricity Industry community.

Mr. Gluski has also focused on shaping an innovative workplace at AES with a diverse and inclusive culture throughout the world. These efforts have given Mr. Gluski valuable expertise in the areas of human capital management, diversity and inclusion that he utilizes in his role as Chair of the Management Development & Compensation Committee of WM’s Board. Mr. Gluski has been named amongst the 100 Most Influential Latinos by Latino Leaders Magazine.

The depth and breadth of Mr. Gluski’s international business and finance background, and experience in managing growth opportunities while focusing on operational innovation, allow him to provide invaluable risk management, government affairs, public policy, public relations, communications and investor relations insight in his role as a member of the WM Board.

Mr. Gluski holds a bachelor’s degree from Wake Forest University, as well as a master’s degree and a PhD in economics from the University of Virginia.

Independent Director since: 2013

Victoria Holt joined Proto Labs, Inc. as President, Chief Executive Officer and a Director in 2014, retiring in 2021. With manufacturing facilities in five countries, Proto Labs is a leading e-commerce technology enabled digital manufacturer of custom prototypes and on-demand product parts.

Ms. Holt began her career at Monsanto Company, where she held various assignments of increasing responsibility before moving to Solutia, Inc., a divestiture of the Monsanto Company’s chemical business, as Vice President and General Manager Performance Films. Ms. Holt later held various roles with PPG Industries, Inc., a leading coatings and specialty products company, including Senior Vice President of Glass and Fiber Glass. Ms. Holt then served as President and Chief Executive Officer of Spartech Corporation, a leading provider of plastic sheet, compounds and packaging products, until its sale to PolyOne in 2013.

Ms. Holt has a diverse international business background serving a wide spectrum of customers looking for sustainable solutions across diverse end markets including plastics, materials, automotive, medical, aerospace, consumer and general industrial. Ms. Holt brings passion and extensive experience in the areas of sustainable innovation, environmental solutions, plastics operations and management and recycling to WM’s Board. Ms. Holt’s proven success leading large global companies across a broad range of manufacturing, chemical and materials industries has demonstrated her deep understanding of risk management, operations, strategic planning and performance measurement. Ms. Holt provides tremendous insight into the areas of continuous improvement, use of data analytics, e-commerce, digitally connected operations and execution of WM’s technology-led, sustainability-linked strategy to grow our business and mitigate climate risks.

Ms. Holt also serves as a director of Piper Sandler Companies, deepening her expertise with respect to capital markets and financial services, and she is a director of A.O. Smith Corp., a leading global manufacturer of water heaters and boilers. Ms. Holt has developed expertise in corporate governance as a member of other public and private company boards of directors, and she shares this expertise with WM's Board in her position as Chair of the Nominating & Governance Committee.

She holds a bachelor’s degree in chemistry from Duke University and a master’s degree in business administration from Pace University. Ms. Holt has completed the National Association of Corporate Directors (NACD) Cyber Risk Oversight Program and earned the CERT Certificate in Cybersecurity Oversight.

Independent Director since: 2015

Kathleen Mazzarella has served as President and Chief Executive Officer of Graybar Electric Company, Inc., a leading distributor of electrical, communications and data networking products and provider of related supply chain management and logistics services, since 2012, and as Chairman since 2013. During her more than 45-year tenure at Graybar, Ms. Mazzarella has held numerous executive-level positions in operations, sales, human resources, strategic planning and marketing, including Executive Vice President and Chief Operating Officer, Senior Vice President – Sales and Marketing and Senior Vice President – Human Resources and Strategic Planning.

Ms. Mazzarella has been instrumental in developing and communicating Graybar’s commitment to sustainability initiatives. Graybar focuses on sustainability in the way it operates and in the innovative solutions it provides to its customers. The company offers energy-saving products, renewable energy solutions and supply chain services that support sustainable construction, renovation and maintenance of infrastructure and facilities. The company also invests in the communities it serves and emphasizes integrity, inclusion, and opportunity for all employees.

Ms. Mazzarella brings her deep and valuable experience leading a diverse range of business functions necessary for an employee-driven, customer-focused business, similar to WM. Through her role as Chief Executive Officer and her service on the board of directors and key committees for other public companies, she has developed expertise in the evolving social and corporate governance landscape. In addition to her experience overseeing financial reporting and controls, technology systems and platforms, and other functional and operational areas, she has particular experience in the area of human capital management, including succession planning, diversity and inclusion initiatives, and oversight of corporate culture. Ms. Mazzarella also brings expertise in labor relations, public policy, operational innovation and strategic planning.

Ms. Mazzarella currently serves as a director of Cigna Corporation and as a director of Core & Main, a distributor of water, sewer, fire protection and storm drain products. She also serves on the board of the National Association of Wholesaler-Distributors (NAW) and previously served on the board of the NAW Institute for Distribution Excellence.

Ms. Mazzarella previously served as Chairman of the Federal Reserve Bank of St. Louis, and she has experience serving on various organizational and charitable boards, including the United Way of Greater St. Louis and the executive committee of Greater St. Louis, Inc.

Ms. Mazzarella holds an associate degree in telecommunications engineering, a bachelor’s degree in applied behavioral sciences from National Louis University, and a master’s degree in business administration from Webster University.

Independent Director since: 2021

Having recently served as Chief Executive Officer and Chair of the Board of Directors of Sabre Corporation, a leading global software and technology company that powers the travel industry, Sean Menke has experience heading a global network of development, sales, operations and corporate functions. In 2015, Mr. Menke joined Sabre as president of Sabre Travel Network, Sabre’s largest line of business. Under Mr. Menke’s leadership, Sabre won major new business opportunities, increased global market share, secured Sabre’s position as the leading global distribution system in North America, Latin America and Asia-Pacific, and led innovation to enable sales of more customized fares and ancillary products that help drive the changing travel industry landscape.

Before joining Sabre, Mr. Menke spent more than 20 years in executive leadership roles in the airline industry. He served as Chief Executive Officer at Frontier Airlines and at Pinnacle Airlines, and he held senior level marketing, operations, customer experience, strategy, planning, sales, distribution and revenue management roles, including with Air Canada and Hawaiian Airlines. He also served as Executive Vice President at IHS Inc., a global information technology company.

Mr. Menke is a proven transformation leader, and uses his extensive experience in technology and transportation operations to bring together strategy and data to address complex issues as a member of the WM Board. His expertise in logistics and commitment to delivering efficient, customer-focused innovation through imaginative technology-led solutions helps advance WM’s strategy to differentiate its services.

Mr. Menke has extensive executive experience in technology‑driven companies and brings to the Board a strong understanding of both enterprise technology transformation and cybersecurity oversight. He has experience overseeing cybersecurity and privacy risk mitigation efforts, including cyber intrusion response planning and remediation.  In addition, during his tenure at Sabre, Mr. Menke led a multi‑year modernization of Sabre’s global technology infrastructure, leveraging advanced cloud‑based solutions to deploy machine learning and generative artificial intelligence to support dynamic pricing optimization, software code augmentation and enhanced customer service automation.

Mr. Menke also brings valuable governance experience from his service on the board of directors of JetBlue Airways Corporation, a major airline in the United States and global travel company.

Mr. Menke holds a bachelor’s degree in economics and aviation management from Ohio State University and a master’s degree in business administration from the University of Denver. He recently completed the MIT Sloan + CSAIL Artificial Intelligence: Implication for Business Strategy Program with a focus on strategic integration of robotics, machine learning, and natural language processing in global organizations.

Independent Director since: 2019

William Plummer served as Executive Vice President and Chief Financial Officer for United Rentals, Inc., the world’s largest equipment rental company, from 2008 to 2019, where he was responsible for the development of the company’s finance activities and investor relations, and he co-led its mergers, acquisitions and divestitures strategies. He also led the company’s safety function and its data and analytics efforts. Mr. Plummer was instrumental in helping the company execute a strategy focused on improving the profitability of its core equipment rental business through revenue growth, margin expansion, operational efficiencies and acquisitions.

Mr. Plummer brought more than two decades of financial leadership experience when he joined United Rentals, having served in a several executive roles, including as Executive Vice President and Chief Financial Officer of Dow Jones & Company, Inc., where he set policy for its global finance and corporate strategy functions. Prior to Dow Jones, Mr. Plummer was Vice President and Treasurer of Alcoa Inc., where he was responsible for global treasury policy and capital markets transactions. Mr. Plummer also held several executive positions at Mead Corporation, including President of its Gilbert Paper division, Vice President of corporate strategy and planning, and Treasurer. 

Mr. Plummer brings extensive accounting, audit, internal control, and risk management experience to the WM Board and as Chair of the Audit Committee. In particular, he has first-hand experience developing, enhancing and overseeing risk management programs at large public companies, including identification and oversight of risks related to human capital, climate, cybersecurity and information technology. He provides insight based on his broad and substantial background in finance, logistics, operational improvement, mergers and acquisitions and capital markets transactions. He also brings valuable experience executing a customer-focused strategy, driving organic revenue growth, and improving free cash flow. Mr. Plummer is deeply engaged in advancing and overseeing results from WM’s people-first strategic focus and diversity and inclusion initiatives.

Mr. Plummer has experience as a member of the board of directors of a number of other large public companies, with particular focus on audit committee service and leadership. Mr. Plummer is currently a director of Global Payments Inc., and Mr. Plummer previously served on the board of directors of Mason Industrial Technology, Inc. and Nesco Holdings, Inc.

Mr. Plummer holds bachelor’s and master’s degrees in aeronautics and astronautics from Massachusetts Institute of Technology and a master’s degree in business administration from Stanford University.

Independent Director since: 2021

As U.S. Managing Director and U.S. Head of Electrification for ABB Ltd., a global technology company, specializing in the areas of electrification, robotics, power, and automation, until 2020, Maryrose Sylvester was responsible for ABB’s largest geographical market and the implementation of operational innovations. Ms. Sylvester also championed the company’s diversity and inclusion efforts and accelerated ABB’s Encompass Diversity program.

Prior to joining ABB Ltd., Ms. Sylvester spent more than 30 years at General Electric, where she held a number of leadership roles, including serving as President and Chief Executive Officer of each of GE Lighting, GE Intelligent Platforms, which focused on industrial automation, and GE Current, a digital power service business that delivers integrated energy systems. Ms. Sylvester was instrumental in launching the GE Women’s Network.

Ms. Sylvester is a strategic, growth-oriented leader with a focus on the areas of technology, innovation and automation. Through her prior experience, Ms. Sylvester has developed expertise in delivering technology-enabled and energy-efficient sustainable solutions. Ms. Sylvester provides experience and extensive knowledge of product development, marketing, technology and supply chain strategy to the WM Board. Ms. Sylvester has in-depth expertise in the area of improving energy efficiency in response to climate risk. Ms. Sylvester also shares insight from her prior experience to inform WM’s strategy to improve processes and drive efficiency through automation. Ms. Sylvester is passionate about advancing diversity and inclusion and has expertise developing and driving such initiatives in the workplace.

Ms. Sylvester also brings valuable governance experience from her service on the board of directors of Harley-Davidson, Inc., Vontier Corporation, a global industrial technology company focused on smarter transportation and mobility, including alternative energy solutions, and Flex, Ltd., a global provider of services to original equipment manufacturers.

Ms. Sylvester holds a bachelor’s degree in procurement and production management from Bowling Green State University and a master’s degree in business administration from Cleveland State University.