Construction company Janssen de Jong Groep, parent of Limburg-based Janssen de Jong Infra suspected of corruption, doubled its turnover to 546 million euros in eight years, placing it in the top 10 of Dutch construction companies. Management would not comment on Infra's corruption charges, which is why seven Limburg officials were detained Tuesday. The company has previously been involved in construction fraud and was fined 592 thousand euros by the NMA in 2006 for prohibited price-fixing. The company was named in 2002 by whistleblower and director of Koop Tjuchem Ad Bos. SubsidiaryWindward Roads would have agreed earlier with Koop Tjuchem to deliberately overbid on a project.

It would have been mutually agreed that Koop Tjuchem would get the project.Windward Roads is one of the eighteen subsidiaries of Janssen de Jong, with a total of 1,650 employees. The founders of the originally Roermond-based company Janssen & De Jong started collecting subsidiaries back in the 1990s. In 2001, the company was acquired by management and an investor and continued as Janssen de Jong. Janssen de Jong in divided into four divisions.Janssen de Jong Infra, which is suspected of corruption, is mainly activein South Limburg and East Brabant. TwentseWeg- enWaterbouw andAsfaltcentrale Roermond are also part of the Infra cluster. The Project Development and Construction branch develops building plans in a large part of the eastern Netherlands. With Rabobank, it forms Zuidgrond, which has more than 63 hectares of building land in towns and villages in Brabant and Limburg. Here Janssen de Jong Bouw can build a total of 1500 homes over the years.