History of DYWIDAG

With the change of name from BAUHOLDING STRABAG SE to STRABAG SE and consolidation of FIMAG with the company, STRABAG SE becomes the new controlling company of the group. It is structured into three business fields – highway construction, building construction, construction engineering, and services.

Besides STRABAG, the principal companies within the group – which achieves an annual result of more than EUR 10 billion with over 53,000 employees – are DYWIDAG, HEILIT + WOERNER, and Züblin.

In Germany, STRABAG AG’s Building Construction and Construction Engineering sectors and DYWIDAG Bau GmbH are sold to Ed. Züblin AG as of 1 March 2006.

The FIMAG Group acquired essential parts of the insolvent WALTER-BAU Group. Included in the acquisition package were DYWIDAG International GmbH, DYWIDAG Bau GmbH, DYWIDAG SF- and Ing. Bau GmbH and WALTER HEILIT Verkehrswegebau GmbH, now HEILIT+WOERNER Bau GmbH. These companies together generate a building volume of nearly EUR 1,000 million with about 3,100 employees.

DYWIDAG Bau GmbH's scope of services includes civil engineering, energy-/power plants, bridge construction, industrial buildings and tunnelling as well as turnkey construction building.

Merger of Dyckerhoff & Widmann AG and WALTER BAU-AG into WALTER BAU-AG vereinigt mit DYWIDAG.

Walter Holding holds about 79 percent of the DYWIDAG shares (proprietary possession and via attribution).

Acquisition of the majority of shares by the Walter family together with Ed. Züblin AG.

Acquisition of UNION-BAU AG, Hoyerswerda. Successor company to VEB Bau- und Montagekombinat Kohle und Energie, Hoyerswerda.

Founding of DYWIDAG-Systems International GmbH (DSI).

Merger with Siemens-Bauunion GmbH.

Change of corporate form: from KG to AG.

Relocation of the company headquarters from Berlin to Munich.

Acquisition of all shares by Dr. Erich Lübbert.
Change of corporate form: from AG to KG.

Relocation of company headquarters from Wiesbaden-Biebrich to Berlin.

Sale of block of shares held by Dresdner Bank to the Aktiengesellschaft für Verkehrswesen Berlin, general director Dr. Erich Lübbert.

Annual turnover is DM 31 million.

Change of corporate form - from KG to AG - and relocation of the company headquarters from Karlsruhe to Wiesbaden-Biebrich.

The annual turnover is DM 4.5 million.

First construction contracts awarded abroad: gas collection tanks in Maastricht.

The company's annual turnover exceeds DM 1 million.

Establishment of a cement factory in Wiesbaden-Biebrich.

Gottlieb Widmann joins the company; change of name into Dyckerhoff & Widmann KG.

Eugen Dyckerhoff, son of Wilhelm Gustav Dyckerhoff, joins the company.

Wilhelm Gustav Dyckerhoff and Heinrich Lang set up the Lang & Cie. cement factory in Karlsruhe.