A to Z Wineworks CEO Amy Prosenjak leads major Oregon wine brands

Amy Prosenjak, President and CEO of A to Z Wineworks LLC, oversees a portfolio of brands including A to Z, Erath, and Rex Hill. According to Circana data, these brands account for approximately one in every four bottles of Oregon-origin wine sold in U.S. multi-outlet retail, which includes grocery, mass, club, and drugstores.

Following years of expansion, the company reported that production across its brands fell by approximately 32% in 2025 to 550,000 9-liter cases. Prosenjak indicated that the company expects to maintain production levels around this amount in 2026, stating a commitment to following consumer trends and maintaining winemaking values even if it results in a smaller company size.