Corollary Wines

Jeanne Feldkamp and Dan Diephouse

Willamette Valley, OR

Featured:

Wednesday, May 6, 2026: Congress Has Heart Reception & Collectors Dinner
Saturday, May 9, 2026: Grand Tasting Reception

Jeanne Feldkamp and Dan Diephouse founded Corollary Wines with a singular mission: to explore the terroir of Oregon’s Willamette Valley and its expression in sparkling wine. The pair has been producing acclaimed traditional method bottlings from some of the region’s most storied cool-climate vineyards since 2017. 

In 2022, Corollary acquired 57 acres of land in the Eola-Amity Hills AVA where it has been developing one of Oregon’s only vineyards designed from the ground up exclusively for sparkling wines. The tasting room, designed in collaboration with Waechter Architecture and Heirloom Modern, opened in 2024 and received a Citation Award from the American Institute of Architects—the organization’s highest honor.

Jeanne and Dan have played key roles in elevating Oregon’s national and international reputation as a premier sparkling wine region. In 2024, they co-founded Method Oregon to champion Oregon’s fast-growing traditional method sparkling movement. Both currently serve on the Board of Directors.