John Z. Blazevich is an entrepreneur, executive, inventor and philanthropist. Most notably, he is a seafood executive and former CEO of Contessa Premium Foods, a company he founded in 1984.[not in citation given] Blazevich is an ethnic Croat and was born in Sarajevo, Bosnia Herzegovina. His parents immigrated to Southern California in 1958. He holds a B.S. in Finance and Marketing from the University of Southern California. In 1980, Blazevich began his career providing oversight and management for worldwide procurement and sale of various tuna species to leading canneries. During such time he saw an opportunity to bring farm-raised Black tiger shrimp to the US market where this product was relatively unknown.