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Leonard M. Hicks, whose 20+ years of experience in business operations and financial management includes leading large-scale growth and transformation for Lockheed Martin and the Mission Essential Group, is Abt Global’s chief financial officer and a member of the executive management team. He is a proven entrepreneur who brings best-in-class leadership and collaborative approaches to problem solving.

Chris Long has over 35  years of management consulting and service delivery expertise in the public-sector market. At Abt, he is focused on shaping and driving delivery of strategy and transformation solutions to our clients. He provides executive oversight of operations, growth, delivery, and innovation, while fostering collaboration enterprise-wide.

Jeffrey (Jeff) Leone is a senior growth leader with more than 20 years of experience leading growth teams and managing complex business development functions such as capture, bids and proposals, market intelligence and competitive assessment, pipeline development, and sales analytics.  Leone’s experience cuts across a range of U.S. domestic and international development markets at Abt and at large, global companies. 

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.

Sarah Gibson is a project-management specialist with 23 years of experience in public policy research. She has more than 20 years of experience managing complex projects, implementing random assignment studies and researching and analyzing policy for clients such as the Social Security Administration and the Department of Housing and Urban Development. She is proficient in project management, including resource management, budgeting and quality control.

Baris Yener has more than 25 years of experience in executive leadership, growth strategy development, and organizational transformation. His business-development and project work has involved a wide range of clients, including the World Bank, Department of Defense, Department of Homeland Security, Centers for Disease Control and Prevention, and other private sector and federal agencies.As Chief Client Officer at Abt, Yener leads client strategy and growth to ensure the voice of the customer drives investment decisions, capability development, and market execution. 

Sean McClellan, Ph.D. is a mixed-methods researcher with over a decade of experience in full cycle health services research. He has experience managing research projects, developing analytic designs, cleaning and analyzing administrative data, fielding rigorous surveys, conducting qualitative interviews, and communicating findings in plain language.

Lisa Simeon is Abt Global’s Chief Operations Officer.  In this role, Simeon is establishing a global operations function to cover all aspects of project management. It will include continuous improvement and scalability of Abt’s standards, processes, and digital platforms for project start-up and closeout, workforce planning, risk management, and quality review to achieve strong financial performance and ensure client satisfaction across the company. She will continue to oversee Human Resources and will add responsibility for global security operations and emergency response to her portfolio.

Philippa Venning has more than 25 years of experience working in international development across the Asia Pacific for government, the private sector, multilateral organisations and NGOs.