Jack Sim, Founder of World Toilet Organization (WTO), has been a successful businessman since age 24. Having achieved financial success in his 40s, he felt the need to change his direction in life and give back to humanity. Sim discovered that toilets were often neglected and grew concerned that the topic was often shrouded in embarrassment and apathy. In 1998, he established the Restroom Association of Singapore (RAS) whose mission was to raise the standards of public toilets in Singapore and around the world. Through RAS, Sim’s vision was to put Singapore on the “world map” by taking the initiative to provide clean public toilets. As he began his work in Singapore, he realized there were other existing toilet associations operating in other countries. In 2001, Jack Sim founded the World Toilet Organization (WTO) and four years later, the World Toilet College (WTC) in 2005.
In 2004, Sim was awarded the Singapore Green Plan Award 2012 by Singapore's National Environment Agency (NEA) for his contribution to Environment. In 2006, he was invited to launch The German Toilet Organization in Berlin. He is also a founding member of American Restroom Association. In 2007, Sim became one of the key members to convene the Sustainable Sanitation Alliance (SuSanA) comprised of over 130 organizations active in the sanitation sector. Sim is also an Ashoka Global Fellow and in 2008 was named Hero of the Environment by Time Magazine. He also sits in the World Economic Forum's Global Agenda Councils (GAC) for Water Security and also the GAC for Social Entrepreneurship.