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Anika Vartan has more than 20 years of experience designing, implementing, and evaluating public health and international development programs to improve access to—and quality of—health care, and increase community participation in social, economic, and political life. Vartan’s expertise is in mixed-methods and qualitative research, project management, health policy analysis, capacity building, adult education and technical assistance, organizational assessment and development, and community-driven development. She has supported the Administration for Community Living (ACL), Agency for Healthcare Research and Quality (AHRQ), Centers for Disease Control and Prevention (CDC), Centers for Medicare and Medicaid Services (CMS), Federal Drug Administration (FDA), Health Resources and Services Administration (HRSA), United States Agency for International Development (USAID), and Department of State (DOS) clients.

Arun Asok is a seasoned impact investor with 15 years of experience investing in and managing a portfolio of impact enterprises across Asia and Africa, particularly those focused on healthcare, financial services, and energy access.  As a senior advisor in Abt’s International Development Division, Arun leads mobilizing private capital and structuring impact investments for various client projects. More broadly, he leads Abt’s private capital and impact investment strategy and execution, and convenes thought leadership activities to champion private capital as a tool for inclusive growth and social and economic wellbeing. Arun’s expertise spans fund structuring, investment management, portfolio management, and business operations while forging public-private partnerships between UN organizations, ministries, developmental institutions, and commercial investors.

Natalie Matthews has over 15 years of experience in the field of homelessness, with a focus on direct service, system planning, database administration, and technical assistance and implementation (TA). Since joining Abt in 2009, Matthews has served in a variety of roles on its U.S. Department of Housing and Urban Development (HUD) Community Compass TA cooperative agreements. She’s also worked on several locally and U.S. Department of Veterans Affairs (VA)-funded TA projects, as well as research, monitoring and evaluation projects.  She served as the project director for the VA’s Supportive Services for Veteran Families (SSVF) monitoring project, served on the evaluation team for HUD’s first evaluation of rapid re-housing programs for families (2012), and led the evaluation of Hartford Connecticut’s homelessness prevention and rapid re-housing program (2014).

Natalie Arthur is a public health consultant with 20 years of experience working across health and human services sectors in Australia, Afghanistan, Bangladesh, United Kingdom, and United Arab Emirates. Natalie has led numerous complex program evaluation, review, and service development projects for Commonwealth, Australian state and territory government, and non-government organizations. She specializes in health, mental health, and disability. Natalie led the data scenario modelling of a further eight health service plans in Victoria and South Australia. As she worked on more than 40 projects, she built invaluable technical and project management experience supporting clients through the translation of complex methodologies into clear, utilization-focused recommendations.

Diane Paulsell is an applied social scientist with more than 20 years of experience designing, conducting, and overseeing mixed-methods policy-focused research, including national multi-site studies. She has also led rapid cycle learning and program improvement efforts with a variety of human services programs and a foundation-funded research program to advance equitable access to family supportive services. Her areas of expertise range from early care and education to parenting, family engagement, youth development and family supportive policies and programs, including nutrition.

Dr. James White, a registered nurse and Collaborative Specialist in Global Health (CSGH), is a senior health specialist with a focus on infectious disease and global health security (GHS). He has over 20 years of experience that includes delivery of emergency response programs in emergency and fragile settings, pandemic preparedness and response, health systems strengthening, and public-private collaboration for GHS. White has worked in more than 20 countries in Africa, Asia, and Latin America assisting in both acute outbreak response and preparation for health emergencies. He also represents Abt as a technical expert on external GHS and pandemic preparedness working groups. His clients have included the U.S. Agency for International Development (USAID), the United Kingdom’s Foreign Commonwealth and Development Office (FCDO), and the Canadian International Development Association (CIDA) (now Global Affairs Canada).

René Nutter is the U.S. Food Security & Agriculture Client Account Lead. She has more than two decades of experience helping further food security and education in women and children. From studies with Yale, Harvard, and the Gates Foundation to a long and successful partnership with the USDA Food and Nutrition Services (FNS), she has led large data collection studies and evaluations, provided technical assistance, and helped train the next generation of researchers.

Dr. Fiona Mactaggart is a multi-disciplinary technical advisor with more than 10 years of experience in monitoring, evaluation, research, and learning (MERL); infectious disease control; and public health. As a co-lead of Abt's MERL portfolio, she draws on complexity theory and scientific methods to help clients test what works, discover why it works, and provide timely evidence-based recommendations to inform important decisions about policy and practice. Mactaggart contributes to business development, programme delivery, and thought leadership. She works in five key areas: monitoring (e.g., design of digital tools and visualisation platforms) research (e.g., cross-sectional survey design), evaluation methodologies (e.g., contribution analysis), learning (e.g., portfolio level evidence-informed strategic decision making), and cross-cutting MERL capabilities (e.g., adaptive management and GEDSI). Mactaggart has worked extensively in the Pacific and Southeast Asia.

Roslyn M. Brock, a nationally recognized civil rights, health policy, and equity advocate, is Abt Global’s Chief Global Equity Officer.  Brock is Chairman Emeritus of the National Board of Directors for the National Association for the Advancement of Colored People (NAACP).  She was the youngest person ever elected NAACP chairman and the fourth woman to hold the position.She has dedicated her career to improving equity and opportunity for all and is a widely honored change agent for social justice with deep experience in health.