Our Work

Since 1975, Keystone Policy Center has helped public, private, and civic-sector leaders solve complex problems and advance good public policy. We rely on our independence, our commitment to good science, and our skills in designing and leading consensus-building processes to establish new partnerships, reduce conflict, and produce policy agreements.

  • David I. Greenberg

    David I. Greenberg

    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…

  • David E. Greenberg

    David E. Greenberg

    David retired from his post as Vice Chancellor for Institutional Partnerships at the University of Denver in May, 2020. Is his eight years he served as the point person for the University when it hosted the Obama-Romney debate in 2012 and chaired the development of the University’s first Master Plan, which in its first phase…

  • Jeff Danter

    Jeff Danter

    As the executive vice president of field programs, Jeff is responsible for overseeing all state and area programs including land protection, urban parks development, and community-based conservation. Jeff joined TPL in 2011 and has worked in conservation since 1994. Prior to that he worked for an international electrical engineering company. Jeff received his BS in…

  • Shelby Coffey III

    Shelby Coffey III

    Currently a senior fellow at The Freedom Forum and Vice Chairman of The Newseum in Washington, DC, Coffey is the author of “Best Practices: The Art of Leadership in News Organizations,” a book on leadership that draws on the experiences of top media executives. Previously the president of CNN Business News and CNNfn, he was…

  • Terrance D. Carroll

    Terrance D. Carroll

    From being a police officer to serving as the 54th speaker of the Colorado House of Representatives to owning his own small business to practicing law, Terrance Carroll pulls from life experiences to provide his clients with unique and well-informed counsel. Terrance represents clients in corporate and transactional matters, as well as in government &…

  • Kathleen Barrón

    Kathleen Barrón

    Profile Barrón serves as executive vice president and chief strategy officer for Constellation, the nation’s largest producer of carbon-free energy and the leading competitive retail supplier of energy products and services for 2 million homes and businesses across the United States. In this role, Barrón is responsible for corporate strategy, corporate development, public policy, sustainability,…

  • Sarah Brown

    Sarah Brown

    Sarah Brown leads public affairs for BASF Agricultural Solutions, North America. She brings more than 15 years of experience in public affairs and industry relations across the agriculture industry. Most recently, Sarah served as Vice President of External Affairs for renewable energy start-up, Nacelle Solutions and Avolta. Sarah previously was Executive Director of Industry Relations…

  • Allyson Anderson Book

    Allyson Anderson Book

    Allyson Anderson Book is the Chief Sustainability Officer at Baker Hughes. In this role she oversees Baker Hughes’ energy transition strategy by driving sustainable operations, supporting commercial energy transition solutions for customers, and ensuring market creation of these solutions via stakeholder engagement and policy development. In 2021 alone, she was recognized by Petroleum Economist as among Top…

  • Paul Aliu

    Paul Aliu

    Paul is the Head of Medical Excellence, Operations and Governance at Novartis, with responsibility for defining and governing enterprise-wide medical standards and policies, ensuring timely clinical trial disclosure and transparency; and the oversight, standards, training, systems and operations for compassionate use/expanded access, scientific grants, peri- and post-registration medical programs (e.g. Investigator initiated trials, research collaborations,…

  • Tom Sheldon

    Tom Sheldon

    Tom Sheldon recently retired from his position as Chief Financial Officer of Global CO2 Science Initiative, a start-up non-profit whose focus was to fund and mentor research in the areas of carbon capture and use. Prior to that Tom served as Chief Financial Officer of the National Ecological Observatory Network, Inc. (NEON) where he spent…