In 1966, Robert Pepi's family bought a ranch with vineyards in the Napa Valley, thinking it a retreat from the city. In 1980, he and his retired father decided to start a winery on the property, giving it the name they each carried, Robert Pepi. Thefirst harvest was in 1981, and Pepi has been making wine ever since. After the winery sold, he became a consulting winemaker, working mainly in California, but traveling also to Argentina, Colorado, and Texas.
In 2008 Pepi found a Syrah vineyard with which he wanted to work, and in 2009 made Cabernet Franc from the MacAllister Vineyard and a Cabernet Sauvignon from Spring Mountain in Napa Valley.