IBC Root Beer was founded in 1919 by the Griesedieck family as the Independent Breweries Company in St. Louis, Missouri. Root beer found a market as a legal beverage during the era of Prohibition. The Independent Breweries Company closed, but the trademark was purchased by the Kranzberg family, which operated the Northwestern Bottling Company. In the late 1930s, it was sold to the National Bottling Company, owned by the Shucart family. Popularity and distribution declined after World War II.
The Independent Breweries Company is a defunct syndicate founded in St. Louis, Missouri, by the combination of Griesediecks' National Brewery, Columbia (Alpen Brau), the Gast brewery in Baden, A.B.C., and Wagner Brewing Company. This combination was ill fated due to high overhead with too many executives and low profits forcing IBC into receivership. The IBC Root Beer was the main surviving brand of the syndicate, now owned by Keurig Dr Pepper.