Silverius Oscar Unggul co-founded Telapak Association with Ambrosius Ruwindrijarto in 2006. Ambrosius served as president from 2006 to 2012 and is now no longer a Telapak member. Silverius now serves as the president and is an expert on community engagement, risk mitigation and conflict resolution. Telapak transforms illegal loggers into sustainable famers through forest management, and destructive fisherman into sustainable fisherman through sustainable marine management. In collaboration with the private sector, he led Telapak to implement inclusive business on forestry, marine and tourism. Silverius was named as an Ashoka Fellow 2006, Conde Nast Traveler Environmental Award 2008, Young Global Leader 2009 and Skoll Awardee on Social Enterpreneur 2010.