is a physician who has specialized in international family planning for 35 years. Dr. Black served as chief executive of Marie Stopes International, based in London, for 35 years, stepping down in 2006. He is now a consultant and advisor worldwide to reproductive health and social marketing programs.

is a pioneer in the field of contraceptive social marketing. He designed and managed the Bangladesh program-perhaps the world's best-in the 1970s. He subsequently served for seven years as executive director of Population Services International, the world's largest social marketing organization. Earlier, he worked for CARE and the pharmaceutical company Mead Johnson in Asia.

is the president of DKT International which he founded in 1989. He was co-founder (with Dr. Black) of Population Services International. Mr. Harvey has been championing the benefits of social marketing for over three decades. Earlier he served as deputy director of CARE's program in India.

has been working in family planning and HIV/AIDS prevention for the last 15 years. He has lived and worked in West Africa for five years, and in Pakistan for four years, where he designed and directed the largest reproductive health social franchising programme in the world. As chief executive of Marie Stopes International, Mr. Hovig presides over one of the world's largest and most successful clinic-based reproductive health programs.

currently serves as the Country Director for DKT International in Indonesia, managing what is now what of the largest social marketing programs in the world.  He has been involved in HIV/AIDS prevention and family planning work since 1991, having previously worked in Ethiopia and Ecuador.  His professional interests center on advancing the cause of social marketing for improved health and socially responsible capitalism.