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David Greenberg serves as Chair of the Governance and Risk Assessment Committee and a member of the Audit Committee of International Seaways (NYSE: INSW), one of the largest global crude oil and petroleum tanker companies. Mr. Greenberg’s previous board experience (2006 to 2016) was as the independent director – and member of both the Audit and Compensation Committees –of APCO Worldwide, a private communications and government affairs consultancy and as a director (2013 to 2016) of Clean Tech Group, which creates opportunities for industrial companies to invest in innovative, clean technology. He also served for 5 years as Chairman of the Board of Trustees of The Keystone Center, a Colorado non-profit that brings together oil, chemical and pharmaceutical companies with leading NGOs to find solutions to complex public policy challenges at the federal and state levels.
From January through October 2020, he servied, at the Board’s request, as interim CEO of LRN Corporation, a technology and education company that provides ethics and compliance strategy, education, communications and a technology platform to corporations across the globe. LRN has helped to elevate the conduct of more than 35 million corporate employees around the world.
Greenberg is currently Managing Director of Cortina Partners LLC, a private equity firm that owns companies in the air medical, addiction treatment, bedding, textile and outdoor recreation industries and is CEO of Acqua Recovery, a residential drug and alcohol addiction center.
For 20 years prior to 2008, Mr. Greenberg served in various senior positions overseeing government affairs, corporate affairs, communications and strategy at Altria Group, Inc. – then the parent company of Philip Morris USA, Philip Morris International, Kraft Foods and Miller Brewing – culminating in his role as Senior Vice President, Chief Compliance Officer and a member of the Executive Committee. As one of five senior vice presidents of the corporation, he served on the Management Committee, which oversaw all strategy and company operations. He was also a principal architect of the company’s very successful efforts to end the ‘tobacco wars’ which threatened the company’s very existence. Earlier in his career, Mr. Greenberg was a partner in the Washington D.C. law firm of Arnold & Porter and also served as Legislative Director and General Counsel of the Consumer Federation of America. He attended Williams College and has JD/MBA degrees from the University of Chicago.
Greenberg has testified before the U.S. Congress, the European Union, the Israeli Knesset and other governmental bodies over two dozen times and has appeared on ABC Nightline, the CBS Morning News, BBC Morning, and the PBS News Hour, and has spoken at leading events for CEOs and boards.
Effective March 1, 2025, Thomas J. Vilsack, former United States Secretary of Agriculture and Governor of Iowa, became the first Chief Executive Officer for the World Food Prize Foundation. In this new role, Governor Vilsack is focusing on expanding the Foundation’s global network, and will further position the Foundation as a leader in addressing global food and nutrition insecurity, continuing his lifetime of public service.
Shelby Coffey III is a distinguished journalist, media executive, and thought leader whose career has helped shape the landscape of American news and public discourse. Over several decades, Coffey has held some of the most influential roles in journalism, including serving as editor of the Los Angeles Times, executive vice president of ABC News, and deputy managing editor of The Washington Post. His editorial leadership extended to key roles as president of CNN Financial News, editor of the Dallas Times Herald, and U.S. News & World Report.
Jerry Steiner has spent 40 years involved in agriculture following growing up on a Wisconsin dairy farm. He began his career with Monsanto, in multiple business leadership roles. From 2003-2013 he served as a member of the Executive team, as the company’s Executive Vice President of Sustainability and Corporate Affairs. He led the company’s global Government, Public and Industry Affairs teams across the 70 countries where Monsanto conducts business. This experience got Jerry connected to the Keystones centers work in agriculture. Key among his responsibilities were shaping the company’s public policy and building partnerships aimed at helping farmers around the world produce more food, while conserving valuable resources like water and energy. Two unique partnership that developed under his leadership were drought tolerant corn with 5 African countries, CIMMYT and the Gates foundation, and a building a sustainable business model in Brazil with the value chain leading to significant multi-company investment and soybean varieties that can protected themselves.
Jennifer Morris is the Chief Executive Officer of The Nature Conservancy, leading a team of nearly 6,000 staff working in more than 80 countries and territories tackling the dual crises of the 
Congressman Joe Neguse represents Colorado’s 2nd District in the U.S. House of Representatives. He was elected to his first term in November 2018, becoming the first Black Member of Congress in Colorado history. In December 2022, Rep. Neguse was elected by his colleagues to serve as Chair of the Democratic Policy and Communications Committee (DPCC), becoming the first Coloradan to serve in a senior elected leadership role in the House in over 85 years. He serves on the Natural Resources and Judiciary Committees, and was also appointed by House Minority Leader Hakeem Jeffries to serve as one of four Democrats on the prestigious Rules Committee. Rep. Neguse serves as Ranking Member on the House Subcommittee on Federal Lands, which he previously Chaired in the 117th Congress.
Llewellyn King was born in Southern Rhodesia, now Zimbabwe. He went into journalism as soon as he turned 16, stringing for Time magazine and United Press in Africa.
Steven Williams is the Chief Executive Officer of PepsiCo North America, overseeing a more than $48 billion business that spans PepsiCo’s Foods and Beverage operating units. His leadership encompasses more than 125,000 associates and over 900 locations across the U.S. and Canada. Steven joined PepsiCo in 2001 as part of PepsiCo’s acquisition of the Quaker Oats Company, which he joined in 1997, and has held leadership positions of increased responsibility since.