Environmental Defense Fund Executive and Leadership Team

May, 2026

Leadership Overview

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

Dedicated to providing solutions for environmental problems, Environmental Defense Fund protects the environmental rights of people, ensuring access to clean air and water, healthy food, and flourishing ecosystems.

Leadership Roles at Environmental Defense Fund

  • Deputy Chief Financial Officer - Nancy Raditz
  • President - Fred Krupp
  • President, Board of Trustees - Gail Osherenko
  • 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 health and strategic resource allocation of the organization. Raditz assists in managing budgets, financial planning, and ensuring fiscal responsibility to uphold the company's mission of providing environmental solutions. This position involves contributing to the oversight of financial operations, including accounting, reporting, and compliance, to support the protection of environmental rights. By ensuring sound financial management, Nancy Raditz enables Environmental Defense Fund to effectively fund initiatives aimed at securing clean air and water, nourishing food, and healthy ecosystems. The Deputy Chief Financial Officer's duties include supporting the development of financial models and forecasts that align with programmatic goals and donor requirements. Raditz plays a key part in maintaining the financial integrity necessary for the organization's long-term sustainability and impact.

    Fred Krupp - President

    Fred Krupp, the President at Environmental Defense Fund, directs the organization's strategic vision and overall operational leadership. Krupp spearheads initiatives to develop and implement innovative solutions for pressing environmental problems, driving the company's mission forward. This executive position involves guiding policy advocacy, scientific research, and market-based strategies to protect environmental rights globally. By championing efforts to secure clean air and water, promote healthy food systems, and conserve flourishing ecosystems, Fred Krupp significantly advances EDF's impact. The President's responsibilities include engaging with key stakeholders, securing funding, and ensuring the effective execution of programs across diverse environmental sectors. Krupp's leadership is central to navigating complex environmental challenges and achieving tangible, sustainable outcomes for the planet and its inhabitants.
    Fred Krupp

    Gail Osherenko - President, Board of Trustees

    Gail Osherenko, the President, Board of Trustees at Environmental Defense Fund, provides strategic oversight and governance for the organization. Osherenko leads the Board in fulfilling its fiduciary duties, ensuring that Environmental Defense Fund effectively pursues its mission to solve environmental problems and protect environmental rights. This leadership role involves guiding the Board's strategic direction, approving major organizational policies, and ensuring accountability for achieving goals related to clean air and water, nourishing food, and flourishing ecosystems. By collaborating with the executive leadership team, Gail Osherenko helps to maintain the organization's integrity and long-term sustainability. The President, Board of Trustees ensures that the organization operates in alignment with its founding principles and effectively serves its mission. Osherenko's governance is crucial for maintaining public trust and driving impactful environmental action.

    Jill Isenbarger - Chief of Staff

    Jill Isenbarger, the Chief of Staff at Environmental Defense Fund, directs strategic initiatives and operational alignment across the organization. Overseeing cross-departmental projects, Isenbarger ensures seamless execution of the company's mission to provide solutions for environmental problems. This leadership position involves managing key internal communications and facilitating high-level decision-making processes to support the protection of environmental rights. By coordinating efforts between various teams, Jill Isenbarger drives progress on critical environmental challenges, focusing on access to clean air and water. The role requires close collaboration with executive leadership to translate overarching goals into actionable plans, thereby enhancing the organization's impact on fostering healthy ecosystems and nourishing food systems globally. Isenbarger's oversight extends to optimizing internal workflows and resource allocation to maximize the effectiveness of Environmental Defense Fund's programs.

    Brian Attas - Chief Information Officer

    Brian Attas, the Chief Information Officer at Environmental Defense Fund, architects and manages the organization's technology infrastructure and digital strategy. Attas drives innovation in information systems to support the company's mission of solving environmental problems and protecting environmental rights. This role involves overseeing the development and implementation of secure, scalable IT solutions that enhance operational efficiency and data management. By ensuring robust technological capabilities, Brian Attas enables Environmental Defense Fund to effectively monitor ecosystems, advocate for clean air and water, and promote healthy food systems. The Chief Information Officer's responsibilities include safeguarding sensitive data, managing cybersecurity protocols, and exploring emerging technologies to advance the organization's outreach and impact. Attas's leadership ensures that technology serves as a critical enabler for achieving EDF's goals in fostering flourishing ecosystems and sustainable food access.

    Elizabeth Mattila - Senior Vice President, Chief Human Resources Officer

    Elizabeth Mattila, the Senior Vice President, Chief Human Resources Officer at Environmental Defense Fund, leads the strategic development and execution of human capital initiatives. Mattila oversees all aspects of human resources, including talent acquisition, employee development, compensation, and benefits, to support the organization's mission of solving environmental problems. This critical role ensures that Environmental Defense Fund attracts, retains, and cultivates a high-performing workforce dedicated to protecting environmental rights. By fostering a positive and inclusive organizational culture, Elizabeth Mattila enhances employee engagement and productivity, directly contributing to the success of programs focused on clean air, water, nourishing food, and flourishing ecosystems. The Chief Human Resources Officer's responsibilities include aligning HR strategies with the company's overall objectives and ensuring compliance with labor laws. Mattila's leadership is vital for building the organizational capacity needed to achieve EDF's ambitious environmental goals.

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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 Gail Osherenko (President, Board of Trustees).
    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), Gail Osherenko (President, Board of Trustees) 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, President, Board of Trustees, Chief of Staff, Chief Information Officer.