History

1995

Gerd Zwiehoff founds the G. Zwiehoff GmbH and – needless to say – distributes the road/rail Unimog

1996

the product range is being extended by a road/rail Sprinter

1998

special customer requests are already being catered to

2000

Unimog-implement-system-partnership by Daimler AG and system implementation U400

2007

major contract comprising 66 Unimogs for Kazakhstan

2010

development of the road/rail electric shunter ROTRAC E2 in cooperation with Linde MH

2011

the ROTRAC RR is being added to the product range

2012

Areceipt of the ÖkoGlobe award for the ROTRAC E2

2013

development of the ROTRAC E4

2014

Stephan Zwiehoff enters into the management of G. Zwiehoff GmbH

2014

service facility in Steinach is being opened

2016

development of Zwiehoff’s own rail guidance system for the Unimog U423

2017

farewell of company founder Gerd Zwiehoff

2019

new workshop in Niedermoosen (south Bavaria) is being opened

2020

obtainment of ECM certification

2021

implementation of environmental management according to ISO 14001

2022

awarding bronze medal at EcoVadis

2023

member of german railway industry association

2024

recertification for Unimog Expert Partner

2024

developement of the ROTRAC E1