[citation needed] The subsidiary Imtech Deutschland GmbH & Co. KG was also responsible for business in Poland, Romania, Austria, Finland und Russia.

Imtech was the general contractor for the technical equipment of the Deutsche Bank Twin Towers in Frankfurt.

[8] The specific cause was the project of a theme park near Warsaw with a sketched total volume of approximately 750 million Euro.

[8][9] This is the 240 hectare theme park Adventure World Warsaw with hotels, restaurants and a planned power plant.

[8][12] The managing director Klaus Betz and Axel Glaß, Chief Financial Officer and Member of the Board, left the German company.

[19] On 27 July 2013 it was announced that a criminalist officially named as "Mr. Y" had been consulted in 2011 to investigate the corruption in the reconstruction of the twin towers in Frankfurt.

He identified more than he should; he warned the company in his final report in May 2011 about mafia structures and he charged the manager of the German subsidiary, Klaus Betz.

[20][21] On 7 October 2014 the general assembly of shareholders approved into an emission of new shares for 600 million Euro to rescue the company.

[25] Peter Mulder, the CEO of Adventure World Warsaw (AWW) said in his 2016 interview, that "Royal Imtech was offering a full turn-key construction contract together with its financing.

Royal Imtech did not invest more than EUR 22 mln – that was the working capital that they loaned to AWW and they also did some simple mechanical, electrical, engineering drawings, which cost app.

[26] On 23 August 2016, a former department head of BER Airport company (Flughafen Berlin Brandenburg GmbH FBB) admitted in court to taking €150,000 in bribes from Imtech on a parking lot next to a highway in 2012.

In return, he is said to have worked within FBB to ensure that additional claims in the amount of more than 60 million euros were transferred unchecked.