Stewart R. Cades
Manages U.S.-based administration, contract negotiation, and representation to clients including USAID and the World Bank. Stewart has over 25 years’ experience in international business and public education. He received a Masters of Education from Temple University, an L.L.B. from the University of Pennsylvania School of Law, and a B.S. in Economics from the Wharton School at the University of Pennsylvania.
Robert L. Arsenault
Manages technical staff and deliverables for all OSC business. Bob has over 20 years’ experience designing and implementing public education programs for a variety of public sector, international development and private sector clients. Bob received an MA in South Asian Studies from the University of Washington, and a BA in Religion from Gettysburg College.
Allen J. Model
Allen leads OSC’s strategic and financial planning. He has extensive experience in real estate, finance, and investment having served on the boards of numerous companies, corporations, and schools, as well as organizations concerned with the arts, service, and the environment. A graduate of Harvard, he earned a Masters of Social Work from Columbia and a J.D. from the University of Pennsylvania School of Law.
Ryan leads OSC’s efforts to integrate cutting edge research, communications methodologies, and technology in support of communications activities in the health, governance, and economic growth sectors. Ryan joined OSC in 2008 and serves as HQ director of Afghanistan projects. He earned his Master of Science in Political Science from the Massachusetts Institute of Technology and Bachelor of Arts degree in Biology and Anthropology from Bowdoin College.
Andrei has rejoined OSC after 20+ years of experience in international development and public health, both in the US and abroad.
Andrei’s international development career began at OSC where he worked on the Chernobyl Childhood Illness program in Ukraine. Since then he has worked extensively in Africa, the Middle East, and South Asia in leadership positions for a variety of NGOs, government agencies, and foundations.
Andrei has a proven track record in social and behavior change communications, private sector engagement in health, social marketing and franchising, family planning and reproductive health, maternal and child health, HIV and malaria prevention, independent media development, and community mobilization.
Carol is an experienced gender professional with three decades of leadership and management experience in over 40 countries directing signature programs and field operations for notable development, research and private sector institutions. Carol brings a track record of success drawn from wide-ranging experiences at country and global levels where she has worked with individuals, families and communities, civil society organizations, the private sector, government agencies and foundations to overcome challenges to gender equality as well as health, food security, nutrition, market competitiveness, climate change, and sustainable livelihoods. Carol has two Master’s degrees from Duke University, one in International Economic Development Policy and the other in Business and the Environment. She earned her Bachelors of Arts degree from the University of Illinois in Cultural Anthropology.
Leads Contracts/Grants Management, Finance and Accounting functions for OSC’s projects in Africa, Asia, Latin America, and Eurasia. Tsilina has over 5 years of experience in Contacts/ Grants Management, Financial Planning, Performance and Control. She earned her master’s degree in Business Administration from Drexel University and a bachelor’s degree in Accounting from Temple University. Tsilina has worked extensively on USAID and private sector-sponsored projects.