Ball, one of the most common Mason jar companies, is based in Daleville, Indiana, according to the contact information on their website. The company is currently owned by Jarden Home Brands, part of the Jarden Corporation.
According to the "About Us" link on their website, Ball was originally based in Buffalo, New York, where the five Ball brothers started making Mason jars in 1884. However, after a fire destroyed the factory, they relocated to Muncie, Indiana. Daleville, where the company is currently located, is a suburb of Muncie. Jarden Home Brands also owns Kerr, another leading brand in Mason jars.