Board of Directors
PTF’s Board of Directors brings together a diverse range of individuals from different parts of the world with extensive experience of anti-corruption and international economic development. They meet at least twice per year to review PTF’s progress; discuss financial, audit, and governance developments; and consider key strategic issues.
Jean-Louis Sarbib
Board Co-Chair
Jean-Louis Sarbib is currently Co-Chair of the PTF Board of Directors. He was until January 2019 Chief Executi...
Hasan Tuluy
Board Co-Chair
Hasan Tuluy is currently Co-Chair of the PTF Board of Directors. He has also been a consultant and adviser on ...
Wayne Nissly
President and CEO
Wayne Nissly is the president & CEO of Partnership for Transparency. An experienced executive leader, Wayn...
David Bernstein
Board Member
David Bernstein retired from the World Bank in 2024 after over 20 years working on justice reform, anticorrupt...
Diariétou Gaye
Board Member
Diariétou Gaye is a former Vice President for Human Resources at the World Bank. In her role, Ms. Gaye’s prima...
Ellen Goldstein
Board Member
Ellen Goldstein was the World Bank’s Country Director for the Western Balkans, which includes Albania, Bosnia ...
Mirella Hernani
Board Member
Mirella Hernani is a Monitoring and Evaluation Advisor with more than 18 years of experience in designing and ...
Katherine Marshall
Board Member
Katherine Marshall has worked for five decades on international development, focusing on the world’s poorest c...
Cissy Nabazinga Kagaba
Board Member
Cissy Nabazinga Kagaba was appointed to the PTF Board in May 2023. A Ugandan national, she is a lawyer and the...
Emmanuel Noubissie Ngankam
Board Member
Emmanuel Noubissie Ngankam has more than 40 years of extensive and diverse professional experience in the priv...
Tjaarda Storm van Leeuwen
Board Member and Treasurer
Tjaarda P. Storm van Leeuwen is Treasurer of PTF and a part-time energy sector adviser. He retired from the Wo...
Deborah Wetzel
Board Member
Deborah Wetzel is a U.S. national with more than 30 years of experience in development work around the world. ...
Stephen Zimmermann
Board Member
Stephen Zimmermann is UNICEF’s Director of Internal Audit and Investigations where he overseas multi-disciplin...
President’s Council
President’s Councilors are individuals who have made valuable contributions to PTF and continue to provide guidance and advice.
Vinay Bhargava
Chief Technical Advisor and President's Councilor
Vinay Bhargava served as the senior adviser for Public Sector Governance at the World Bank from 2006 to 2007. ...
John Clarke
President's Councilor
John Clark served as PTF’s Board Chair from 2014 to 2020. Mr. Clark has worked with development NGOs, the Worl...
Peter Eigen
President's Councilor
Prof. Dr. Peter Eigen is from Germany. A lawyer by training, he founded Transparency International in 1993. Pr...
Pierre Landell-Mills
President's Councilor
Pierre served as PTF’s President and CEO for the organization’s first decade and has been a member of the PTF ...
Daniel Ritchie
Executive Committee Member and President's Councilor
Daniel is a founder and former President of PTF, as well as an independent consultant on economic development....
Richard Stern
Executive Committee Member and President's Councilor
Richard Stern served as President of PTF from January 2014 to December 2021. Richard is a retiree from the Wor...
Frank Vogl
President's Councilor
Frank Vogl is a founding member of the Board of PTF, a former Board Chair (April 2020 t0 May 2023) and Vice Ch...
Management, Staff, and Consultants
Members of the PTF Advisory Team volunteer their services. They are seasoned development and management experts with diverse backgrounds who oversee and direct all aspects of PTF’s operations.
PTF also maintains a small staff and consultants to support program development and evaluation, financial management, technology solutions, communications strategies, and more.
Executive Committee
Wayne Nissly
President and CEO
Wayne Nissly is the president & CEO of Partnership for Transparency. An experienced executive leader, Wayn...
Barbara Kafka
Executive Committee Member
Barbara Kafka served for over 33 years at the World Bank in a range of posts which involved her in the economi...
Daniel Ritchie
Executive Committee Member and President's Councilor
Daniel is a founder and former President of PTF, as well as an independent consultant on economic development....
Richard Stern
Executive Committee Member and President's Councilor
Richard Stern served as President of PTF from January 2014 to December 2021. Richard is a retiree from the Wor...
Staff
Wayne Nissly
President and CEO
Wayne Nissly is the president & CEO of Partnership for Transparency. An experienced executive leader, Wayn...
Yacine Belhaj-Bouabdallah
Program Manager
Yacine Belhaj-Bouabdallah is the Program Manager at the Partnership for Transparency. He has a Bachelor’s degr...
Strategic Advisory Team
Wayne Nissly
President and CEO
Wayne Nissly is the president & CEO of Partnership for Transparency. An experienced executive leader, Wayn...
Haleh Bridi
PTF Europe Chair
Haleh Bridi is Chair of PTF Europe and a member of the Management Team. Haleh is a former Director for the Afr...
Lars Jeurling
Advisory Team Member
Since 2004, Lars Jeurling has been an adviser of Partnership for Transparency, working mostly on Eastern Europ...
Jeff Kass
Advisory Team Member
Jeff has been a PTF member since April 2011, serves on the PTF Management and Governance Committees and advise...
Robert Liebenthal
Advisory Team Member
Robert Liebenthal is a development economist and manager with more than 40 years of management and field exper...
Aileen Marshall
Advisory Team Member
Aileen Marshall joined PTF in 2020 after her retirement from the World Bank where her last position was Partne...
Indira Sandilya
Advisory Team Member
Indira Sandilya is a development communication professional, with many years of work experience in India, the ...
Tjaarda Storm van Leeuwen
Board Member and Treasurer
Tjaarda P. Storm van Leeuwen is Treasurer of PTF and a part-time energy sector adviser. He retired from the Wo...
Gaiv Tata
Advisory Team Member
During his 28 years with the World Bank, Gaiv worked on private sector development, public enterprise reform/p...
Pietronella van den Oever
Advisory Team Member
After retiring from the World Bank, Pietronella van den Oever was a Visiting Scholar at the Population Referen...
Consultants
Rachel Ansley
Project Consultant
Rachel Ansley is the part-time Program Manager of the Partnership for Transparency Africa subcommittee and assists with the Voice ...
Nadishani Perera
Consultant
Nadishani Perera is a visionary, with a remarkable track record in promoting transparency, accountability, and clean governance. N...

































