The Leonhard Moll Betonwerke GmbH & Co KG has a long-standing tradition, which goes back to as early as 1929 when the Munich-based building contractor Leonhard Moll built a concrete factory. Since 1935, the company has been developing and producing industrial-scale spun concrete masts, which have also been used for antenna mast applications since the introduction of the railway radio network. After Leonhard Moll registered a patent for prestressed concrete sleepers in 1937 - which made him a pioneer in this technology - millions of concrete sleepers have been produced and turned out to be the mainstay of sales.