Ground Truth

Improving humanitarian action by making people the focus of program design and performance.


David Bonbright - Chief Executive

David is founder and Chief Executive of Keystone. Over the past three decades, as a grantmaker and manager with Aga Khan Foundation, Ford Foundation, Oak Foundation, and Ashoka, David has sought to evolve and test innovative approaches to strengthening citizen self-organization for sustainable development as an alternative to prevailing bureaucratic, top-down models of social service delivery and social value creation.

While with the Ford Foundation, he was declared persona non grata by the apartheid government in South Africa. In 1990 he returned to South Africa and entrepreneured the development of key building blocks for civil society, including the first nonprofit internet service provider, the national association of NGOs, the national association of grantmakers, and enabling reforms to the regulatory and tax framework for not-for-profit organisations that were among the first laws passed by the newly elected Mandela government.

Andre Proctor - Programme Services Director

An African historian by training, Andre has worked for the last thirty years in education and development practice. For the last twelve years he has specialized as facilitator of organization development processes for CSOs in Africa, including program evaluations where he has pioneered new approaches to developmental impact evaluation.

A founding partner of Keystone in 2004, Andre now serves as its Programme Director and manages the Cape Town office. He leads on the development of Keystone’s ground-breaking Impact Planning, Assessment and Learning (IPAL) methodology and also co-leads in the development of Keystone’s Comparative Constituency Feedback Survey methodology.

Nick van Praag - Ground Truth program

The Ground Truth program is led by Nick van Praag, whose career spans humanitarian and development work at the UN, the World Bank and the Aga Khan Development Network. Nick has focused on the linkages between humanitarian programs and development during much of his career, most recently as a member of the core team preparing the World Bank’s World Development Report for 2011. His particular interest in beneficiary feedback and humanitarian performance stems from his time at UNHCR. Please click here to learn more about the Ground Truth program.

Natalia Kiryttopoulou - Senior Consultant

Natalia is a Senior Consultant at Keystone. Her work focuses on the design and implementation of Constituent Voice tools and services for a wide range of clients in the international cooperation field. Her area of expertise is in designing, setting up and implementing monitoring and evaluation systems that are specifically focused in gathering and analyzing feedback from the constituents of organizations that want to create social value. She has wide experience in delivering such systems and training teams on the ground, having worked on a variety of projects mainly in African and Latin American countries.

Natalia has been working in the international cooperation field since 2005 and has been associated with Keystone since the early years, having held different positions in the organisation. Her career includes a 3-year assignment with Oxfam Spain as a Monitoring, Evaluation and Learning Officer where she lead the international cooperation departments’ efforts to build an accountability system towards partners and primary constituents and also provided specialised advice for building M&E systems for women’s rights programmes. She is Greek and routinely carries out her work in English, Spanish, French and Portuguese.

Kai Hopkins - Senior Consultant

Kai Hopkins is a Senior Consultant at Keystone Accountability and delivers on all client projects from Comparative Constituent Feedback projects to bespoke consultancy. This portfolio includes a diverse range of clients, including the World Bank, trusts and foundations such as CS Mott and the Hewlett Foundation, NGOs such as Save the Children, Oxfam and Christian Aid and social investors and for-profit companies. Kai is responsible for Keystone’s Development Partnership survey, a benchmarked feedback survey taken by almost 70 leading international NGOs. Kai joined Keystone after three years as General Manager at Alliance magazine, which he led through a period of expansion. Alliance magazine is the leading publication on international philanthropy and social investment. Kai has an undergraduate degree in Politics and an MBA.

Ilva Letoja - Office Manager

Ilva has worked in the international development sector for 6 years and has extensive experience of working both in Europe and overseas. Ilva obtained her master’s degree in European Studies from Katholieke Universiteit Leuven, Belgium and joined Keystone in 2014 after several years as International Medical Programme Coordinator at a major USA-based medical charity. Ilva is based in London, and is responsible for financial and operational matters at Keystone.

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