Stewart and Lynda Resnick

From almonds & oranges in California's Central Valley to grapefruits in South Texas, Stewart & Lynda Resnick owe their billions to nature's bounties.Nearly half of all Americans purchase one of their products, including Halos mandarin oranges, POM Wonderful and Fiji Water.Stewart bought his first farmland parcel in California in 1978 as a hedge against inflation, thus beginning their agricultural empire.A marketing genius, Lynda dropped out of college at 19 to start her own ad agency. Stewart initially was a client for his janitorial business.They own a majority stake in the Kern Water Bank, one of California's largest underground water storage facilities.