The only winery in Sonoma County specializing in ports and after-dinner wines. Sonoma Portworks is an artisan winery located in the historic Foundry Wharf area of downtown Petaluma. Everything we create is unique and delicious. Our style of winemaking allows the grape varietal to exhibit its character. For almost 30 years, our ports have put smiles on faces. Find out for yourself and book a tasting to discover our extensive portfolio of after-dinner wines, artisan spirits, and culinary food products. You've never tasted anything like this!