Dan Marioni

is a fifth-generation Sonoma native and a former mechanical engineer who transitioned into winemaking. His winemaking journey began in 2016 at the historic Coturri Winery, where he worked with Nic Coturri and learned the "Coturri Way" of winemaking—a philosophy of zero additions and zero subtractions. In 2019, he launched his own label, Marioni Wine, continuing this commitment to natural winemaking. The wines are vinified and crushed at Magnolia Wine Services in Sonoma, California.

Marioni's approach emphasizes the vineyard, where he aims to have total control over farming practices. He works to prove that hand-farmed, organic, and sustainable practices lead to the highest quality wines that are a true representation of their place of origin. He works with both estate-farmed fruit and fruit sourced from other vineyards that he knows have sound, environmentally focused practices. The wines are described as "zero-zero," meaning nothing is added to the wine or fermentations. Each cuvée is labeled with original black ink prints carved by Marioni himself.