4th Generation Winemaker

Anthony Riboli

4th generation family winemaker Anthony Riboli received his M.S. in Viticulture from the University of California, Davis. During the 1997 harvest, he apprenticed under Michael Weis at Groth Vineyards and Winery in Napa Valley.

Since joining the Riboli Family Wine Estates, his foremost goal has been the improvement of the quality of our wines through his meticulous focus in the vineyards. Major innovations include clonal selections, crop thinning, and deficit irrigation. One of his greatest pleasures is working beside his father and grandfather.

Head Winemaker

Arnaud Debons

Arnaud Debons worked in the Bordeaux and Cahors regions of France after graduating from the prestigious winemaking program at the University of Toulouse. Looking for a change and a challenge, he moved to the U.S. where he worked as an assistant winemaker for Newton Vineyards in Napa Valley for several years before joining Riboli Family at San Antonio Winery in 2003.

Arnaud brings constant energy and commitment to his job and particularly enjoys visits to the winery’s estate vineyards in Monterey, Paso Robles, and Napa Valley.


Ben Mayo

With more than 15 years of winemaking and management experience in Paso Robles at Rotta Winery and Eberle Winery, San Luis Obispo native joins the San Antonio winemaking team in Paso Robles, focusing predominantly on the San Simeon, Maddalena, and Opaque brands of the Riboli Family Wine Estates portfolio.

Mayo was also heavily involved in the construction and management of the new state-of-the-art winery on Wisteria Lane off Golden Hill Road, which opened Summer 2016.