Osana Lestari Konsultan (Osana International) was organized by Professor DR. P.W.J. Nababan under the laws of the Republic of Indonesia in 1991.
Professor Nababan was born into a traditional farming family in Butar, North Sumatra. At an early age, he became motivated to learn English and, after graduating from high school and college, developed the desire to study in the United States where he ultimately earned a Masters Degree from the University of Texas in Austin and a doctoral degree from Cornell University in Ithaca, New York. Over a twenty-five year professional career, he became one of Indonesia’s leading educators and author of numerous education and linguistics books.
Professor Nababan founded Osana with the objective of better preparing public sector officials (particularly those in the Ministry of National Education) and private sector executives to further Indonesia’s growth and development after the New Order regime.
In 1993, Professor Nababan appointed his daughter, Dra. Melva Nababan, as the President Director and transferred his share interest to a family foundation. Today, Osana has more than twenty years experience assisting developing governments, newly-autonomous local governments, as well as state and regional-owned enterprises, to implement and institutionalize complex multilateral agency and bilateral donor-financed technical assistance projects. A keynote characteristic of this assistance has been materially assisting the drive to good governance and better fiduciary performance in public, public-private and public-community transactions.