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Diane Fraser started out working in art departments for a marketing product manufacturer in high school and a consulting firm in college. After college, she began a career in non-profits, where she developed and managed communications, public relations, fundraising, and events.

David Cooley is an environmental scientist with more than 15 years of experience working in climate change and environmental management. His work has focused on the interactions between climate change mitigation, air pollution reductions, and improvements in public health. He has managed multiple projects for the U.S. Environmental Protection Agency (EPA), U.S. Agency for International Development, and the New York State Energy Research and Development Authority (NYSERDA) to evaluate opportunities to reduce greenhouse gas (GHG) and air pollutant emissions.

Brian Chirwa is an agricultural and environmental scientist with over three decades worth of experience working on projects funded by the World Bank, the U.S. President’s Malaria Initiative (PMI), the Environmental Council of Zambia, and the Southern African Development Community (SADC). He brings 18 years’ experience on PMI-funded projects focused on indoor residual spraying (IRS) and insecticide-treated nets (ITNs) and has provided technical leadership, assistance, and high-level management for country-wide Zambian IRS and ITN campaigns. Brian also has three decades' worth of experience designing environmental information systems (EIS) for public organizations.

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.

Radha Roy is a mixed-methods researcher and senior evaluation leader with over 16 years of experience designing and directing large-scale federal evaluations of workforce development, income support, and education programs.

Gary L. Perlin, the retired chief financial officer of Capital One Financial Corporation, is the non-executive chairman of Abt Global’s Board of Directors.Perlin has more than three decades of experience in senior finance roles in for-profit and not-for-profit organizations. As CFO of Capital One – one of the largest financial services companies in the nation – Perlin was responsible for the company’s overall financial management. He was named “Best Finance Company CFO” for four years by Institutional Investor magazine between 2007 and 2011.

Dr. Lianne Fisman is an experienced researcher and a recognized expert in qualitative and mixed method research design, and analysis. She specializes in evaluating and strengthening programs that support economically disadvantaged individuals and communities. Dr. Fisman currently leads Abt’s Qualitative and Mixed Methods sub-capability. During her tenure at Abt, Dr. Fisman has served as project director and task leader on projects related to a variety of policy areas, including housing, youth and community development, education, and financial wellness.

Sanjoti Parekh has 20 years of experience serving in leadership, management, and advisory roles in the Australian healthcare industry. Prior to that she worked as a clinician for five years. With expertise in public health, epidemiology, and primary care, she leads policy and program reviews, rapid and systematic literature reviews, health services planning, and development of population health strategies. In addition, Sanjoti oversees outcome and impact evaluations, post-implementation reviews, and quality-improvement, governance, and research programs.