Environmental Defense Fund Executive and Leadership Team

July, 2026

Leadership Overview

Environmental Defense Fund has 6 executives leading key functions including technology, operations, finance, human resources, and strategy.

Driven by a commitment to environmental stewardship, Environmental Defense Fund provides innovative solutions for pressing environmental challenges, safeguarding the rights of people to clean air, water, and healthy ecosystems.

Leadership Roles at Environmental Defense Fund

  • Deputy Chief Financial Officer - Nancy Raditz
  • President - Fred Krupp
  • Chief Technology Officer - Makenzie Lystrup
  • Chief of Staff - Jill Isenbarger
  • Chief Information Officer - Brian Attas
  • Senior Vice President, Chief Human Resources Officer - Elizabeth Mattila
  • Nancy Raditz - Deputy Chief Financial Officer

    Nancy Raditz, the Deputy Chief Financial Officer at Environmental Defense Fund, supports the financial strategy and operational integrity of the organization. Raditz assists in managing budgets, financial reporting, and resource allocation to ensure EDF's programs effectively address environmental challenges. This role involves close collaboration with finance leadership to maintain fiscal responsibility and support the organization's commitment to environmental rights. By ensuring sound financial practices, the Deputy Chief Financial Officer enables EDF to maximize its impact in promoting healthy ecosystems and sustainable food systems. Nancy Raditz's dedication to financial stewardship underpins EDF's ability to deliver on its mission.

    Fred Krupp - President

    Fred Krupp, the President at Environmental Defense Fund, leads the organization's strategic vision and global operations to address critical environmental issues. Krupp drives the development and execution of innovative solutions aimed at protecting environmental rights, including access to clean air and water, healthy food, and flourishing ecosystems. This executive leadership involves guiding programmatic efforts, fostering key partnerships, and advocating for policies that promote environmental sustainability. By setting the organizational direction, the President ensures EDF remains at the forefront of environmental advocacy and impact. Fred Krupp's leadership is central to advancing EDF's mission and achieving tangible environmental progress worldwide.
    Fred Krupp

    Makenzie Lystrup - Chief Technology Officer

    Makenzie Lystrup, the Chief Technology Officer at Environmental Defense Fund, directs the strategic implementation of advanced technological solutions to address complex environmental issues. Overseeing the development and deployment of digital platforms, Lystrup ensures that EDF's operational capabilities are enhanced through cutting-edge innovation. This leadership involves architecting scalable systems that support data analysis, communication, and advocacy efforts across the organization. By integrating emerging technologies, the Chief Technology Officer drives efficiency and expands the reach of EDF's environmental protection initiatives. Makenzie Lystrup's focus remains on leveraging technology to achieve measurable environmental impact and secure a sustainable future.
    Makenzie Lystrup

    Jill Isenbarger - Chief of Staff

    Jill Isenbarger, the Chief of Staff at Environmental Defense Fund, orchestrates strategic initiatives and operational alignment across the executive team. Managing key projects and ensuring seamless communication between departments, Isenbarger facilitates the execution of EDF's core mission. This role involves advising leadership on critical organizational matters and driving cross-functional collaboration to achieve environmental goals. By streamlining internal processes and supporting the President's agenda, the Chief of Staff enhances organizational effectiveness. Jill Isenbarger's contributions are vital to maintaining operational momentum and advancing EDF's impact in protecting environmental rights and promoting healthy ecosystems.

    Brian Attas - Chief Information Officer

    Brian Attas, the Chief Information Officer at Environmental Defense Fund, oversees the strategic direction and management of the organization's information technology infrastructure. Attas ensures the security, reliability, and efficiency of all IT systems, supporting EDF's mission to provide solutions for environmental problems. This leadership encompasses managing data governance, cybersecurity protocols, and the integration of new technologies to enhance operational workflows. By optimizing IT resources, the Chief Information Officer enables EDF to effectively protect environmental rights and promote access to clean air, water, and nourishing food. Brian Attas's expertise drives the technological backbone that supports EDF's critical advocacy and programmatic work.

    Elizabeth Mattila - Senior Vice President, Chief Human Resources Officer

    Elizabeth Mattila, the Senior Vice President, Chief Human Resources Officer at Environmental Defense Fund, directs all human capital strategies to support the organization's environmental mission. Mattila oversees talent acquisition, employee development, and organizational culture initiatives, ensuring EDF attracts and retains top talent dedicated to environmental protection. This leadership role involves fostering an inclusive and high-performing work environment that aligns with EDF's values of providing solutions for environmental problems. By championing employee well-being and professional growth, the Chief Human Resources Officer strengthens the organization's capacity to advocate for clean air, water, and flourishing ecosystems. Elizabeth Mattila's focus is on building a robust workforce committed to environmental stewardship.

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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 Makenzie Lystrup (Chief Technology 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), Makenzie Lystrup (Chief Technology Officer) and other senior executives.
    How many executives does Environmental Defense Fund have?
    Environmental Defense Fund has 6 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 Technology Officer, Chief of Staff, Chief Information Officer.