The Hellenic Initiative (THI) is a global, non-profit, non-governmental secular institution whose mission, through the generosity of the Greek diaspora and philhellene community, is to develop sustainable economic and business improvement programs to empower the Greek people toward long-term prosperity. Oli Mazi – All Together. Founded in 2012 by prominent leaders from the Greek global diaspora, THI is honored that President Bill Clinton has joined the effort as an honorary patron. Our focus is on jobs and philanthropy, and we are undertaking a number of initiatives designed to encourage entrepreneurship and investment in Greece.