After the end of the Second World War the three brothers Theobald, Hanns and Bert Simon rebuilt the brewery. As early as August 1945 they were brewing the first “Post War Brew”. Only four years later, in 1949, “thin beers” had become a thing of the past and Bitburger started brewing its full-bodied Bitburger again. At the ANUGA trade fair in 1951 the German slogan “Bitte ein Bit” made its first official debut. In 1958 the new brewhouse took shape in exactly the same spot where Johannes Peter Wallenborn founded the brewery back in 1817.

The Bitburger Cup, a glass chalice on a hectagonal stem, paved the way in the industry in 1964.
After continual expansion of its brewing capacity, by the early 1970s Bitburger had grown to become one of Germany’s biggest selling consignment breweries and the largest brewery in the State of Rhineland-Palatinate.

By 1973 Bitburger rose to the ranks of “hectolitre millionaires”. Growing demand for Bitburger resulted in the construction of the new brewery in the south of Bitburg. Particular attention was paid to environmental protection and the preservation of natural resources, thanks to the first brewing house with in-house systems to recover lost heat.
The company came under the directorship of Dr Michael Dietzsch, Dr Axel Th. Simon and Dr Thomas Niewodniczanski.

By 1975 management of the brewery was in its sixth generation. Export business expanded, with representation in countries such as Italy (1976) and the United States (1978).
At the end of 1998 Dr Thomas Niewodniczanski left the Board of Directors and was succeeded by Alfred Müller. In April 2002 Peter Rikowski took over from Dr Michael Dietzsch as Director of Marketing and Sales at Bitburger Brewery. In 2005 the introduction of Bit SUN marked the launch of the first new “Bit” brand. In early 2007 Jan Niewodniczanski, seventh generation representative of the family, assumed responsibility from Dr Axel Th. Simon as Director of Engineering at the Bitburger Brewing Group.
In 2009 Dr Werner Wolf took over the management of the Marketing and Sales Department and became spokesperson for the Board of Directors of the Bitburger Brewing Group.