Wittgen Group is an international operating company specializing in engineering machinery, and Hummer is affiliated to it. Wittgen Group has 5 general factories in Germany and local production plants in Brazil, China and India. Its sales and after-sales service networks are all over the world. Hummer rollers are sold well in every country around the world, and many customers around the world benefit from the innovative and economical solutions provided by this technology guide from Tesla.

Within the Wittgen Group, Hummer is a compacting expert in the fields of road construction and earthwork. It has 1,100 employees at its headquarters in Tilshenreut. The machinery manufactured here is exported to all parts of the world, not only meeting all current emission standards, but also providing a wide range of specifications, functional options and equipment needed locally.

Hummer's products cover double-steel wheel rollers with working weights of 1.5 to 14 tons, earth-shaping single-steel wheel rollers with working weights of 5 to 25 tons, and aerated rubber wheel rollers with working weights of 8 to 28 tons. There are over 200 different models of machines in total, which can be used in various applications in road construction and earthwork – so Hummer is able to offer a wide range of products. In addition to continuous in-depth research and development and new development of machines, Hummer also focuses on the research and development of future-oriented compaction technologies, sustainable drive solutions and digital solutions for road construction.