Sandy Hoa Dang, Co-Founder & Principal

Born in Hanoi, Sandy left Vietnam when she was ten years old. After living in rural China and Hong Kong refugee camps, Sandy resettled in the United States at the age of thirteen. Because of her personal experience, Sandy has devoted her life to helping children and families. For more than a decade, she served as Founder and Executive Director of Asian American Leadership, Empowerment, and Development (AALEAD), an organization that supports immigrant and refugee families through a broad array of educational and social services. On transitioning from AALEAD, she received a fellowship to attend the Masters of Public Administration program at the Harvard Kennedy School. Since graduating in 2010, she has been working as an organizational development consultant at the Montgomery County Department of Health and Human Services in Maryland. In 2011, Sandy was appointed by President Barack Obama to serve on the Board of Directors of the Vietnam Education Foundation. She also serves on the board of the National Coalition for Asian Pacific American Community Development, the Community Advisory Board of the John F. Kennedy Center for the Performing Arts, and the Community Advisory Council for WETA Television. In addition to her MPA, Sandy holds a BA from Duke University and a Masters in Social Work from Catholic University. She is fluent in Cantonese and Vietnamese. 


Marc Ross Manashil, Co-Founder & Principal

Marc brings 25 years of global social sector experience to 11plus. He co-founded and served as the longtime Director of The Clarence Foundation  –  a public foundation promoting engaged international philanthropy. In this capacity, Marc advised high-net-worth individuals and facilitated donor circles in which business executives pooled their funds and invested in social change organizations worldwide. In 2010, Marc completed a Master in Public Administration at the Harvard Kennedy School where he received a Presidential Public Service Fellowship  –  one of the school's most prestigious awards. During this time, Marc deepened his expertise in group facilitation, leadership development and consensus-based mediation while serving as a Teaching Assistant for a course on cross-cultural leadership. As program lead on the Community-Driven Innovation team of TechSoup Global, Marc oversaw a network of 50 groups in 20 countries that link technology experts with social benefit organizations. Most recently, he served as US Executive Director of Muso, a global health nonprofit working to end preventable deaths in the world's most vulnerable communities. Marc has been a passionate advocate of collaborative philanthropy through his service on the Member Services Committee of Exponent Philanthropy, as a noted speaker, and contributor to philanthropy and news publications. In addition to his MPA, Marc holds a Master of Social Welfare from UC Berkeley and a BA in Political Science from UC Santa Barbara. 

Angela Mason, Co-Founder & Principal

Angela is a highly successful fundraiser and public speaker with decades of experience in the global development and philanthropy arena. She has coached major donors, high-net-worth families and corporations, enabling them to enjoy the life-changing aspects of global philanthropy. In 1990, she left a lucrative career in executive search to found Touch Romania, a nonprofit organization helping disabled kids in that country. A twenty-year career with World Vision followed. Angela has traveled to nearly 80 countries with donors, media teams and business partners raising awareness about poverty, justice, health and environmental issues. As the Co-Founder of The Clarence Foundation, Angela was part of a dynamic team engaging donors through giving circles. She has produced award-winning television documentaries including the crisis of clean water, genocide in Rwanda and Bosnia, trafficking, street children, maternal health and children's education. Angela loves to teach fundraising, public speaking and media relations, mixing her British humor, development knowledge and zest for global adventure! Angela is the recipient of the Soroptimist International Award for “Women Helping Women,” the CBS/San Francisco Chronicle “Jefferson Award” and the ABC/Johnson & Johnson “Remarkable Woman Award” presented on the morning show The View.

Jamie Purdon, Senior Consultant, Leadership Development

Jamie is the cofounder and President of RPA Consulting, a strategic partner of 11plus that offers training in leadership development, negotiation and strategic communication.  As President, Jamie is responsible for the creation of all strategic program material.  Before RPA, Jamie was one of the more influential journalists in Canada.  He was responsible for the daily newsgathering operations for the CBC both domestically and internationally.  He is a multi-award winning television producer, and has led, or created many of the outstanding programs in Canadian radio, including, This Morning, As it Happens, and The Current.  He also directed CBC’s federal and provincial election coverage.  Jamie has degrees from York University, Ryerson, and the University of Windsor.  He is also a graduate of the Kennedy School of Government at Harvard, where he received a Masters in Public Administration.