The German Tube-liner Day and the German Repair Day is an industry gathering at which the latest developments in sewer rehabilitation are presented. Due to their up-to-date and interesting topics, together with the high-calibre of the speakers, both events rank as the leading professional events in their field.

The city of Sisak and its suburbs have been affected by flooding several times in recent years as a result of rainfall events. In the Staro Pracno suburb, three rivers meet: the Sava, the Kupa and the Odra.

Saarbrücken Airport (SCN): Study regarding runway rehabilitation and adjustments to the strips

The existing runway (09/27) was rehabilitated in 2009.  Approximately a year and a half after this work, bubbles and ground water seepages were again identified.  Taken as a whole, the problems indicate that almost the entire runway is saturated.

In 2015, Cologne Bonn Airport GmbH commissioned igr with the site management and construction supervision of the rehabilitation of the drainage of sections 1 to 3.

On 3rd November 2016 the concluding conference of the BMBF (Federal Ministry of Education and Research) INIS joint project SinOptiKom ("Inter-sectoral process optimisation in the transformation of municipal infrastructures in rural settings"), took place in the Donnersberghalle in Rockenhausen. igr was closely involved in this project as a practice partner, primarily with the processing of incoming data, as well as with the implementation and evaluation of the newly-developed software.