Founded by Tony Magee in 1993 in the town of the same name in northern Califirnia near San Fransciso. They quickly outgrew these premises and moved the following year to their current site in nearby Petaluma.
Known for their unique takes on traditional beers styles they've grown steadily to become one of the biggest craft beer brewers in the USA. In 2015 Heineken took a 50% stake in the company and two years bought the remaining shares to make it a wholly owned subsidiary. The founder, Tony Magee, continued as CEO of the company.