Senior Staff

Diana Aviv
President and CEO

Diana Aviv is president and CEO of Independent Sector, the national leadership network for America’s nonprofits, foundations, and corporate giving programs. By representing tens of thousands of organizations across the country, Independent Sector advances the common good by leading, strengthening, and mobilizing the charitable community.

Diana is a frequent speaker on trends in and key issues for the sector. She has testified before Congress and has been featured in media outlets such as The New York Times, The Washington Post, The Wall Street Journal, NPR, and

Diana also served as executive director of the Panel on the Nonprofit Sector, convened by Independent Sector at the encouragement of the leadership of the Senate Finance Committee. This independent panel recommended actions to strengthen the governance, transparency, and accountability of public charities and private foundations, many of which were enacted into law. The Panel also issued the Principles for Good Governance and Ethical Practice: A Guide for Charities and Foundations. More than 150,000 have been distributed to members of the nonprofit community.

Diana came to Independent Sector in 2003 after spending nine years at the Jewish Federations of North America as their vice president for public policy and director of its Washington Action Office. Diana focused on federal legislation and regulations, particularly policies affecting health and human service organizations.

Diana was formerly associate executive vice chair at the Jewish Council of Public Affairs, director of programs for the National Council of Jewish Women, and director of a comprehensive program to serve battered women and their families. She had a private psychotherapy practice in New York and New Jersey and has served as an expert witness in capital cases in New Jersey.

In December 2010, President Obama appointed Diana to the White House Council for Community Solutions that mobilizes citizens, nonprofits, businesses, and government to solve community needs. A founding board member of the Outcomes and Effective Practices Portal, Diana serves on the board of governors of the Partnership for Public Service and the National Commission on Civic Investment in Public Education, as well as on the board of directors for the Southern Africa Legal Services Foundation. She is a member of the advisory boards of the Comptroller General’s at the Government Accountability Office, the Peter G. Peterson Foundation, the International Center for Not-for-Profit Law, and the Centers on the Public Service of George Mason University.

She was previously a member of the Smithsonian Institution’s Board of Regents’ Committee on Governance, the board of directors for GuideStar and the National Council on Aging, and the advisory board for the National Center on Philanthropy and the Law. A native of South Africa, Diana graduated with a B.S.W. from the University of Witwatersrand in Johannesburg and received a master’s degree in social work at Columbia University. 
Amanda Broun
Vice President, Programs and Practice

Amanda Broun is vice president, programs and practice at Independent Sector. In her role, Amanda leads efforts to strengthen leadership, accountability, and effectiveness in nonprofit organizations of all sizes and missions. Amanda has years of experience supporting nonprofits through policy, program, and capacity building, most recently at Public Education Network (PEN), a network of community-based public education advocacy organizations. Prior to PEN she served as Chief Education Counsel to the U.S. Senate Committee on Labor and Human Resources.  As counsel for the U.S. Senate Committee on Labor and Human Resources, Amanda drafted legislation and committee reports, including the Elementary and Secondary Education Act.  She frequently represented Committee Chairman, Senator Edward M. Kennedy, in negotiations with staff from all branches of government. 

Prior to working on the Hill, she was legislative counsel in the Intergovernmental Affairs Office of the NYC Office of Management and Budget, where she did extensive writing and analysis of the fiscal impact of proposed state legislation.  She also was a staff attorney in the Office of the General Counsel of the NYC Board of Education. 

Amanda received a law degree from New York University School of Law and a bachelor’s in sociology from Barnard College, Columbia University. 

Erica Greeley Erica Greeley
Vice President, Networks and Member Engagement

Erica Greeley leads Independent Sector’s efforts to expand and engage its diverse network. Erica’s role includes strengthening IS’s current membership, while investigating how people, organizations, and networks can best work together in today’s dynamic environment. Erica joined IS in 2007 as Director, Strategic Initiatives.

Prior to IS, Erica served the National Council of Nonprofit Associations (now the National Council of Nonprofits) as Director of Strategic Policy Planning and then Deputy Director. In that capacity, she oversaw an initiative that convened over 100 town hall meetings across the US to discuss the needs of local nonprofits. Her 18 years in the nonprofit and philanthropic sector also includes managing fundraising and marketing campaigns, evaluating community-building initiatives, chairing local grant-making committees, and directing after-school programs for at-risk youth.

Erica is an adjunct faculty member of Georgetown University’s Nonprofit Management Executive Certificate Program and serves on the board of Microfinance Opportunities. She holds a B.A. from Wesleyan University and an MPP from the Public Policy Institute at Georgetown University.

Candy Hill
Candy Hill
Vice President, Communications and Marketing

Candy Hill is vice president, communications & marketing, leading Independent Sector's efforts to serve as the voice of the charitable community both within the sector and to decision makers, media, and the public. Candy's role includes implementing an internal and external communications, branding, marketing, and public relations plan to advance Independent Sector’s strategic vision, broaden awareness of its programs and priorities, grow its membership, drive broader donor support, and increase engagement across key stakeholder audiences.

Leveraging a diverse background in communications, public policy, and development, Candy is a seasoned professional with 15 years in the nonprofit field and extensive experience in government. Most recently, Candy served as Executive Vice President, Social Policy and External Affairs, at Catholic Charities USA (CCUSA), a charter IS member. Before serving nine years at CCUSA, Candy led Catholic Charities of Monroe County (Mich.) as CEO/president. Prior to her service with Catholic faith-based organizations, Candy had a distinguished career with the State of Michigan, Department of Human Services. She has served also as an adjunct professor at the Columbus School of Law, Catholic University of America in Washington, D.C.

A Michigan native, Candy earned a B.S. from Alma College in Michigan and a J.D. at the University of Detroit-Mercy. She earned a certificate in executive management from Harvard's Kennedy School.
Nadine Jalandoni
Vice President, Convenings & Knowledge Sharing

Nadine Jalandoni is vice president for convenings & knowledge sharing at Independent Sector. Her responsibilities include providing research support to departments across the organization; promoting organizational effectiveness; contributing to strategic planning; and developing and managing the program content for the IS Annual Conference. She has been with IS since 1999 and worked on IS’s Giving and Volunteering series, in addition to co-authoring two key nonprofit resource publications, The Nonprofit Almanac, and Social Justice Grantmaking.

Nadine serves on various nonprofit research advisory committees and is responsible for calculating the annual dollar value of volunteer time. She has been involved in managing the IS international program and represented IS at the CIVICUS Global Assemblies. During this time she also co-chaired the Steering Committee of the Affinity Group of National Associations (AGNA). Prior to Independent Sector, Nadine worked as associate executive director for a major corporate foundation in the Philippines, as research manager for the United Way of Southeastern PA, and other research positions with nonprofits and consultancy firms. She holds a B.S. in foreign service from Georgetown University and an M.A. in international development from American University.

Jeffrey Moore
Vice President, Strategy and Special Initiatives

Jeff Moore is Independent Sector's vice president, strategy and special initiatives, supporting the organization's critical strategic visioning efforts as it guides the sector to meet the future needs of democratic society. He is a senior leader with broad experience in the nonprofit field, government, and industry. He most recently served in an executive role in the health-systems research field.

Jeff has served as a senior advisor to the Secretary of Defense and as legislative director to Congressman Thomas J. Downey (NY). In each of his positions, he has built critical partnerships and alliances that have accelerated organizational and mission success. His leadership style—he was described by one of his former board members as being “the weaver of the cloth”—and career experiences create a unique foundation for advancing critical thinking, strategic development, and organizational performance.

Jeff considers his Distinguished Civilian Service Award, presented in 1998 by Secretary of Defense William Cohen, to be among his greatest career achievements. Cohen honored Moore at the end of his tenure in the Clinton administration for his contributions to the nation’s security and his unique ability to build bridges between U.S. government agencies, the U.S. private sector, and foreign governments.

Geoffrey Plague
Vice President, Public Policy

Geoffrey Plague leads Independent Sector’s efforts to advance policies that enhance the ability of charitable and philanthropic organizations to improve lives across the country and around the world. Before becoming vice president, Geoff served as Independent Sector’s director of government relations for more than two years, working on the development of policy objectives and the implementation of an advocacy campaign focused on the tax treatment of nonprofit organizations and charitable giving. 

Prior to joining IS, Geoff served as advocacy and policy director at the Basic Education Coalition, a group of international development organizations dedicated to providing every child around the world access to a quality education. 

Geoff served nearly 15 years in the United States Congress, and the New York Times in August 2008 called him “a well-respected Capitol Hill veteran.” He held senior positions in the offices of Senator Byron Dorgan (D-ND) and Representatives Steny Hoyer (D-MD) and Robert Andrews (D-NJ). 

Geoff received an MA in International Affairs from American University’s School of International Service and a BA in Political Science from the University of Kansas. He has taught courses on the U.S. Congress at Georgetown University and St. Mary’s College of Maryland.

Geoff is also the founder and president of Buildings & Books, a 501(c)(3) public charity that constructs children's community libraries in sub-Saharan Africa.

Claire S. Wellington
Senior Vice President, Governance and Special Projects

Claire Wellington joined IS in November 2004, and now leads the organization's efforts to bring together theorists, researchers, and practitioners to identify the emerging trends in the nonprofit sector. She was most recently vice president and general counsel to the American Association of Exporters and Importers, where she provided legal and policy advice and prepared reports on a range of regulatory and legislative matters. Prior to AAEI, Claire was chief of staff and senior advisor of the enforcement division at the U.S. Department of the Treasury, where her work included anti-corruption efforts and sanctions policy.

Claire received a bachelor's degree in government from Smith College, a master's degree in international affairs from Columbia University, and a law degree from Harvard Law School. She is a member of the Minority Outreach Advisory Board of the National Center for Missing and Exploited Children and co-author of “The Foreign Corrupt Practices Act: Avoiding the Pitfalls,” published in the Preventive Law Reporter. Among other accomplishments, she received the Treasury Department's Secretary's Honor Award in 2001.

Join IS Today