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Marianne El-Khoury is a seasoned health professional with a proven track record of leading and managing large-scale health programs. At Abt, she has held senior management and technical roles on USG-funded projects in health systems strengthening, infectious diseases, and private sector health. She has also led research and evaluation studies in family planning and reproductive health, maternal and child health, and health financing.

Dr. Ndombour Gning Cisse is a biologist and scientist with 16 years of experience in public health and environmental health management, particularly in malaria vector control in Africa. She has experience in all aspects of insecticide spraying operations, including planning, training, supervision, human resources talent management, leadership development, strategic planning, project implementation, and capacity development assignments in four countries.

Kristie McKinley is a federal IT and business development leader with more than 33 years of experience supporting the U.S. Department of Agriculture (USDA).

Debra Kemp Fleischer is a certified Project Management Professional (PMP) with 25 years of experience supporting federal programs. She applies her background in environmental science and policy with communications expertise to inform and engage stakeholders about regulatory and voluntary programs. She has led the development and implementation of multi-media communications strategies for a variety of audiences, including non-profit organizations, industry, environmental groups, and federal staff. She has experience with plain language writing, message development, and risk communication. 

Rodrigue Fiacre Ahoumènou Agossa is a public health entomologist with more than 12 years of experience in control and elimination of infectious diseases, particularly malaria control programs. His expertise includes project management; research; vector control tools development and evaluation; case management; and health system strengthening. He also has worked on development, consolidation, and popularization of norms, policies, and guidelines for the fight against malaria and neglected tropical diseases. He has collaborated with the Global Fund, World Health Organization, Against Malaria Foundation, and Ministry of Health.

Eduardo Castellon has two decades of experience helping public sector clients—from the U.S. Agency for International Development (USAID) and the U.S. Postal Service (USPS) to the Department of Housing and Urban Development—grow and refine their operations and impact. He has extensive experience delivering consulting expertise focused on artificial intelligence (AI), supply chain, procurement, financial management, and advanced analytics. His technological, consultative, and entrepreneurial skills help clients find new ways to address challenges ranging from affordable housing to homelessness to guaranteed income. He also has extensive expertise in technical assistance and implementation (TA&I) approaches. And his management experience includes developing high-performing teams through skills and career development and succession planning.

Matthew Eby has over 20 years of leadership experience in supporting life science research and consulting for military, federal public health, and international agencies. His diverse career spans basic and applied research on environmental bioremediation, designing nanomaterials to combat antimicrobial resistance, and protecting our nation against bioterrorism. He also led federal and international agencies in modernizing public health systems and pandemic response efforts. Clients have included the Air Force, Navy, Army, Defense Advanced Research Projects Agency, Centers for Disease Control and Prevention (CDC), Food and Drug Administration, National Institutes of Health, and United Arab Emirates. He  has authored more than 20 peer-reviewed publications with 1000+ citations. He also is an active supporter of local community initiatives that tackle affordable housing, food insecurity, and systemic poverty.

Douglas W. Elmendorf, Ph.D., is Lucius N. Littauer Professor of Public Policy at Harvard University’s John F. Kennedy School of Government. He served as Dean of the Kennedy School from 2016 to 2024 and was previously Director of the Congressional Budget Office from 2009 to 2015.Elmendorf has held senior economic positions with the Federal Reserve Board, the President’s Council of Economic Advisers, and the Treasury Department, where he was Deputy Assistant Secretary for Economic Policy. He is a widely respected economist who has deep knowledge of many of Abt’s core research areas, including health care policy and approaches to increasing economic security.Elmendorf is the author of more than 30 publications and has testified before Congress on economic issues 50 times since 2005. 

Brooke Abrams is a trained political scientist and researcher. With over 11 years of experience, she specializes in applied housing and health, bringing expertise in managing and contributing to place-based, mixed-method, and community-centered solutions. Her work spans research, evaluation, and technical assistance (TA) projects across diverse policy domains, delivering innovative and tailored strategies to drive impactful change.As a Client Solutions Architect at Abt, Abrams plays a pivotal role in designing client-focused frameworks and solutions that emphasize rigorous, data-informed, multi-disciplinary, and population-tailored design. She specializes in community-specific, monitoring, evaluation, and technical assistance approaches to engage and work alongside persons with lived expertise.