S tewart Resnick, along with his wife Lynda Resnick, is the co-owner and co-chairman of The Wonderful Company, a massive privately held agricultural and consumer products conglomerate based in California. After a career in law, he started his first business in janitorial services. He and his wife later began acquiring a series of businesses, with a powerful and successful focus on California's Central Valley agriculture. They have since built one of the largest farming operations in the United States.

The Resnicks have become the world's largest producers of almonds and pistachios (under the Wonderful brand) and a major producer of citrus fruits (under the Halos brand). While Stewart is the strategic and operational leader of the farming empire, his wife Lynda is the marketing genius who has brilliantly transformed their agricultural commodities into iconic, high-margin consumer brands. Their other well-known brands include POM Wonderful pomegranate juice and Fiji Water. The couple are also among California's most significant philanthropists, having donated hundreds of millions to education, health, and the arts, particularly through their major gifts to Caltech and UCLA.