HASSLACHER Gruppe Deutschland is a German company based in Kleinheubach, operating under HASSLACHER Holzbauteile GmbH & Co. KG and active since 1901. The company focuses on engineered timber structures, prefabricated components and larger timber-construction projects.

Its services are centred on timber engineering, prefabricated structural elements, project planning and production support for technically demanding buildings. The company fits commercial or institutional projects where repeatability, technical documentation and reliable delivery are important.