Gregory C. Pappas is the founder of Cosmos Communications Group Inc., the company that publishes Greek America Magazine and handles a number of public affairs advisory-related services for clients in Greece and the United States as well as strategic corporate planning, media relations and event planning throughout the world.

He also serves as a Public Advisor to John P. Calamos Sr., Chairman and CEO of Calamos Investments in Naperville, Illinois, a money management firm with over $45 billion in assets under management.

He has executive produced and co-executive produced a number of major international events and concerts featuring multi-platinum Greek singer Glykeria, to whom he also serves a close advisor, including the 1999 concerts in Tel Aviv with the Israel Philharmonic Orchestra, the 2004 Sunday of Orthodoxy concert in Istanbul, Turkey for the Ecumenical Patriarchate of Constantinople and a 2006 benefit concert for the Bishop’s Task Force on AIDS in Chicago, Illinois.

He serves on the executive board of directors of the PanHellenic Scholarship Foundation, which awards $250,000 annually to Greek American university students, as well as the Hellenic Museum and Cultural Center in Chicago, which is in the process of building a 45,000 square foot state of the art facility—the first of its kind serving the Greek American community in the United States.

In his capacity as publisher of Greek America—a magazine reaching over 250,000 readers throughout the nation, Pappas has interviewed dozens of business, religious, entertainment and political leaders throughout the world and has written dozens of award-winning and critically-acclaimed articles and profile pieces. He also writes for a number of publications in Athens, Greece.

A native of Pittsburgh, Pennsylvania and graduate of the University of Pittsburgh, Pappas supports a host of church and community organizations in his native Pittsburgh, as well as his adopted Chicago and is a member of the Leadership 100 Endowment Fund of the Greek Orthodox Archdiocese of America.