There are thousands of American owned breweries, but the big three, Bud, Coors, and Miller are owned by outside companies.
Yuengling in Pennsylvania is 100 % US owned
There are around 1,500 American breweries, most of them small with limited distribution. Among the larger ones are Stone Brewing Co., Boston Beer Co., Sierra Nevada Brewing, Dogfish Head Craft Brewery, and Yuengling Brewing. The breweries typically associated with the U.S., Budweiser, Miller, and Coors are all owned by foreign conglomerates now.
Moosehead Breweries is a family-owned, 100% privately held company. So, unfortunately shares are not available for purchase....but the company's fine products are! Joel Levesque Vice-President Public Affairs Moosehead Breweries Limited
Greene King is a brewery in the UK established in 1799. It is one of the largest British-owned breweries in the UK, and currently holds 2% of the UK beer market.
Miller Brewing Company is now owned by SAB Breweries. They are headquartered in South Africa.
Yes, Pabst is American owned. But, it is brewed by SABMiller (not American owned).
Palm Breweries was created in 1597.
Sleeman Breweries ended in 1933.
Sleeman Breweries was created in 1988.
Vaux Breweries was created in 1837.
Sinclair Breweries was created in 1988.
Asahi Breweries was created in 1889.