It all started on a farm


Karl Wiedemann is self-employed.

Awards for a lifetime achievement


For the third time, Karl Wiedemann provides the chamber winner in the practical performance competition of young craftspeople and receives the Silver badge of honour for his special services to the profession.


For his many years of contribution to the craft and his life's work, Karl Wiedemann is awarded the Golden master craftsman's certificate on the occasion of his 80th birthday.

The company is growing...


Carla Wiedemann takes over the commercial management.


WIEDEMANN & REICHHARDT Maschinen- & Fahrzeugbau: the GmbH (Ltd.) is founded.


Foundation of WIEDEMANN VERTRIEBS GMBH sewer cleaning vehicles by Carla Wiedemann and expansion of national and international sales.


...and continues to evolve


Rainer Reichhardt, Karl Wiedemann’s previous colleague and employee, takes a stake in the company.

Rainer Reichhardt takes over the focus on GGVS/ADR, the support of foreign customers and training and remains an active member of the company until June 2019.


Relocation to todays business premises in Altenmünster.

The family company grows


Foundation of WIKA Kft. in Hungary by Karl Wiedemann.

Initially, the components are manufactured here (tank, booms, liquid ring pumps, etc.). The already existing production hall, which was bought, looks large and it seems inconceivable that it will ever be fully utilized. The limits reveal themselves only a few years later.

In 2006, the premises are expanded and a new assembly hall for vehicle construction is built.

Another production hall is built in 2014 and another test hall is added in 2016.


The new generation


WIEDEMANN & REICHHARDT Maschinen- und Fahrzeugbau GmbH takes over WIEDEMANN VERTRIEB sewer cleaning vehicles.

As an independent company, WIEDEMANN enviro tec has been a member of the WIEDEMANN GROUP since 2015 and connects with Stefanie Wiedemann, as a daughter of the entrepreneurial family, in the second generation of tradition and innovation in the house of WIEDEMANN.