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In 2000, Nico Freccia and Shaun O’Sullivan opened the doors to the 21st Amendment brewpub in San Francisco’s historic South Park neighborhood with Freccia managing the restaurant and O’Sullivan spearheading the brewing process. In addition to quickly becoming one of the city’s favorite pubs, 21st Amendment began expanding beyond the Bay Area by helping to pioneer the movement to canned craft beer. In 2015, they opened a Brewery & Tap Room in San Leandro where most of their beers are made and canned. Known for artistic packaging, witty names and delicious brews, 21st Amendment offers year-round selections, seasonal offerings and its Insurrection Series of small-batch, limited releases. Sold in 28 states, 21st Amendment is among the top 50 craft beer breweries in America.

21st Amendment Brewery Questions

The 21st Amendment Brewery annual revenue was $6.2 million in 2026.

Shaun O'Sullivan is the Co-Founder and Brewmaster of 21st Amendment Brewery.

18 people are employed at 21st Amendment Brewery.

21st Amendment Brewery is based in San Leandro, California.

The NAICS codes for 21st Amendment Brewery are [31212, 312, 3121, 31].

The SIC codes for 21st Amendment Brewery are [20, 208].

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