David Adeyemi is a public health physician, a husband, and a father. When he is not working, he loves to travel, play football, and volunteer to provide free medical services to disadvantaged populations.

David Ainsworth is business editor at Devex, where he writes about finance and funding issues for development institutions. He was previously a senior writer and editor for magazines specializing in nonprofits in the U.K. and worked as a policy and communications specialist in the nonprofit sector for a number of years. His team specializes in understanding reports and data and what it teaches us about how development functions.

David Ainsworth is business editor at Devex, covering funding trends, procurement issues, and fundraising strategies. He was previously editor at Civil Society News, a U.K. publication specializing in nonprofits, and he has worked for a number of U.K.-based charities. He is located in London and can be reached at david.ainsworth@devex.com.

David Archer is head of participation and public services at ActionAid, having been head of education for many years. He is a co-founder of the Global Campaign for Education, chair of the Board of the Right to Education Initiative, and chair of the Strategy and Impact Committee of the Global Partnership for Education.

David Barash, M.D. is the executive director of global health and chief medical officer for the GE Foundation. David leads the GE Foundation work to improve surgical access to underserved populations globally and to impact the opioid crisis in Massachusetts. He is co-founder and immediate past co-chair of the Private Sector Roundtable, a collaboration of several multinational companies to support the work of the Global Health Security Agenda in preparing for and combating pandemic outbreaks.

David Baxter is the director of the Institute for Public Private Partnerships, a Tetra Tech Company based in Arlington, Virginia. He was born in Cape Town, South Africa, and has lived and worked across Africa. He is a fully trained educator and socio-economist and has worked at a number of educational/research institutions. He is focused on developing PPP capacity building programs for international clients (public and private sector) mostly who are focused on the energy, water, and transportation sectors.

David Booth is a director and research fellow for politics and governance at the Overseas Development Institute. He leads research on developmental regimes in Africa, which builds on the conclusions of the Africa Power and Politics Program. He has worked on aid, innovations in development policy and practice, and the political economy of governance and service delivery in Africa and Latin America. He speaks Spanish.

David Bryden is the director of Frontline Healthcare Workers Coalition, an alliance of United States-based organizations working together to urge greater and more strategic investments in frontline health workers in low- and middle-income countries.

David Cogswell is a senior consultant in Deloitte's federal strategy practice and a former Princeton in Asia fellow. David's work focuses on serving nonprofit organizations in health and education, as well as helping build partnerships across sectors to achieve greater social impact.

David Collins is an economist and accountant with over 30 years of experience in international health and development projects, including working as resident health care finance advisor to the Ministries of Health of Kenya and South Africa. He works for Management Sciences for Health in health care financing and is a professor at Boston University, where he teaches health care finance. He provides technical assistance and training to developing countries in all areas of health economics and finance. This includes the development and use of costing tools for modeling integrated packages of hospital, health centre and community services, as well as for modeling vertical program costs, such as for TB, family planning, malaria and community case management.