Environmental Defense Fund Executive and Leadership Team

November, 2026

Leadership Overview

Environmental Defense Fund has 5 executives leading key functions including information systems, technology development, organizational operations, financial management, and executive leadership.

Committed to protecting environmental rights, Environmental Defense Fund delivers science-based solutions to ensure clean air, water, and healthy ecosystems for communities across the globe.

Leadership Roles at Environmental Defense Fund

  • Deputy Chief Financial Officer - Nancy Raditz
  • President - Fred Krupp
  • Chief Information Officer - Brian Attas
  • Chief Technology Officer - Makenzie Lystrup
  • Chief of Staff - Jill Isenbarger
  • Nancy Raditz - Deputy Chief Financial Officer

    Nancy Raditz, the Deputy Chief Financial Officer at Environmental Defense Fund, manages the fiscal health and budgetary planning required to sustain large-scale environmental programs. Raditz oversees financial reporting, grant management, and resource allocation to ensure transparency and accountability in all operations. By monitoring economic trends, the Deputy Chief Financial Officer provides the insights necessary for long-term financial stability. Nancy Raditz collaborates with department heads to align spending with the strategic objectives of protecting environmental rights. This role involves maintaining rigorous compliance standards and optimizing the financial structure to support global conservation efforts. Raditz directs the audit processes and risk management strategies, safeguarding the assets of the organization. Through careful fiscal oversight, the Deputy Chief Financial Officer ensures that every dollar contributes to the mission of providing clean air and water. Raditz maintains the financial integrity of the nonprofit, enabling the continued pursuit of sustainable solutions for complex environmental problems.

    Fred Krupp - President

    Fred Krupp, the President at Environmental Defense Fund, defines the overarching vision and strategic direction for the organization's environmental advocacy. Krupp leads the executive team in developing science-based solutions to address climate change and protect natural resources. By engaging with policymakers and global leaders, the President advances the mission of securing clean air and water for all people. Fred Krupp oversees the expansion of conservation initiatives, ensuring that the nonprofit remains at the forefront of environmental policy and innovation. This leadership role involves setting the tone for organizational culture and driving the commitment to flourishing ecosystems. Krupp manages high-level partnerships that amplify the impact of research and advocacy efforts. Through decisive leadership, the President navigates complex environmental challenges and promotes sustainable practices across industries. Krupp maintains the focus on long-term goals, ensuring that the organization continues to deliver effective, scalable solutions to protect the planet for future generations.
    Fred Krupp

    Brian Attas - Chief Information Officer

    Brian Attas, the Chief Information Officer at Environmental Defense Fund, directs the digital infrastructure supporting global environmental advocacy. Attas manages the secure data networks and information systems required to track climate metrics and ecological health across international regions. By architecting robust cybersecurity frameworks, the Chief Information Officer protects sensitive research data from external threats. This role involves collaborating with cross-functional teams to integrate advanced analytics into the nonprofit's core mission of environmental protection. Brian Attas ensures that technological resources remain scalable to meet the demands of large-scale conservation projects. Through the implementation of cloud-based solutions, the Chief Information Officer optimizes internal workflows and enhances communication between remote research hubs. Attas maintains the integrity of digital assets, providing the foundation for data-driven decision-making. Ultimately, the Chief Information Officer drives the technological evolution necessary to sustain long-term environmental impact and organizational efficiency.

    Makenzie Lystrup - Chief Technology Officer

    Makenzie Lystrup, the Chief Technology Officer at Environmental Defense Fund, leads the development of innovative tools for monitoring climate change and ecosystem stability. Lystrup oversees the deployment of satellite technology and remote sensing platforms to gather critical environmental data. By bridging the gap between complex scientific research and actionable policy solutions, the Chief Technology Officer accelerates the adoption of sustainable technologies. Makenzie Lystrup coordinates with engineering teams to refine software applications that track air quality and water safety metrics. This leadership position requires constant evaluation of emerging tech trends to maintain a competitive edge in environmental advocacy. Lystrup manages the technical roadmap, ensuring alignment with the broader goals of protecting human rights to clean resources. Through strategic partnerships with research institutions, the Chief Technology Officer expands the reach of monitoring initiatives. Lystrup drives the innovation agenda, securing the technical capabilities required to address urgent global environmental challenges.
    Makenzie Lystrup

    Jill Isenbarger - Chief of Staff

    Jill Isenbarger, the Chief of Staff at Environmental Defense Fund, coordinates executive operations and facilitates strategic alignment across all departments. Isenbarger manages the flow of information between the leadership team and the board, ensuring that organizational priorities remain focused on environmental protection. By streamlining internal processes, the Chief of Staff enhances the effectiveness of advocacy campaigns and research initiatives. Jill Isenbarger oversees the execution of high-level projects, maintaining clear communication channels to support the nonprofit's mission. This role involves managing complex stakeholder relationships and ensuring that operational activities reflect the core values of the organization. Isenbarger drives the implementation of administrative policies that support staff productivity and cross-departmental collaboration. Through meticulous planning and oversight, the Chief of Staff enables the leadership team to focus on long-term environmental goals. Isenbarger maintains organizational stability, ensuring that resources are allocated efficiently to support the protection of clean air, water, and flourishing ecosystems.

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    Frequently Asked Questions Regarding Environmental Defense Fund Top Executives and Leadership Team

    Who leads Environmental Defense Fund?
    Environmental Defense Fund is led by Nancy Raditz (Deputy Chief Financial Officer), along with executives such as Fred Krupp (President) and Brian Attas (Chief Information Officer).
    Who is part of Environmental Defense Fund’s executive team?
    The executive team of Environmental Defense Fund includes leaders such as Nancy Raditz (Deputy Chief Financial Officer), Fred Krupp (President), Brian Attas (Chief Information Officer) and other senior executives.
    How many executives does Environmental Defense Fund have?
    Environmental Defense Fund has 5 executives leading key business areas.
    What roles are included in Environmental Defense Fund’s leadership team?
    The leadership team of Environmental Defense Fund includes roles such as Deputy Chief Financial Officer, President, Chief Information Officer, Chief Technology Officer, Chief of Staff.