| February 12 | City | Event / Fair | Participant | |
| 07-08/02 | Berlin, Germany | Quo Vadis Congress | HOCHTIEF Solutions | ical |
| 29/02 | Annual Report 2011, 7:00 a. m. CET | HOCHTIEF | ical | |
| 29/02 | Business Results Press Conference | HOCHTIEF | ical | |
| 29/02 | Analysts' and Invesors' conference on the Full-Year Report 2011 | HOCHTIEF | ical | |
| 28/02-01/03 | Karlsruhe, Germany | pharma lounges | HOCHTIEF Solutions, HOCHTIEF Energy Management | ical |
| March 12 | City | Event / Fair | Teilnehmer | Termin importieren |
| 06-08/03 | Hanover, Germany | FM Messe und Kongress | HOCHTIEF Solutions | ical |
| 06-09/03 | Cannes, France | MIPIM | HOCHTIEF Solutions | ical |
| 09-10/03 | Cologne, Germany | Fachtagung Energiespeicher (Energy Storage Symposium) | HOCHTIEF Solutions | ical |
| 15-16/03 | Berlin, Germany | European Chemical Manufacturing Masters | HOCHTIEF Solutions, HOCHTIEF Energy Management | ical |
| 29/03 | Sinsheim, Germany | future thinking | HOCHTIEF Solutions | ical |
| 29-30/03 | Stuttgart, Germany | 5th Clean Energy & Passivehouse 2012 | HOCHTIEF Solutions | ical |
| April 12 | City | Event / Fair | Teilnehmer | Termin importieren |
| 23-27/04 | Hanover, Germany | Hannover Messe | HOCHTIEF Energy Management | ical |
| May 12 | City | Event / Fair | Participant | Add date |
| 03/05 | Essen, Germany | General Shareholders' Meeting 10:30 a. m., Congress Center Essen, West Entrance, Norbertstraße | HOCHTIEF | ical |
| 08/05 | Quarterly Report January - March 2012, 7:00 a. m. CET | HOCHTIEF | ical | |
| 08/05 | Conference call with analysts and investors on the Quarterly Report | HOCHTIEF | ical | |
| June 12 | City | Event / Fair | Participant | Add date |
| 11-12/06 | Hamburg, Germany | Real Estate North | HOCHTIEF Solutions | ical |
| 13-14/06 | London, UK | Renewable UK Global Offshore Wind 2012 | HOCHTIEF Solutions | ical |
| 19-20/06 | Stuttgart, Germany | Consense 2012 International Trade Fair and Congress for Sustainable Building, Investment, Operations and Maintenance | HOCHTIEF | ical |
| 26-29/06 | Bremen, Germany | WAB Windforce 2012 | HOCHTIEF Solutions | ical |
| August 12 | City | Event / Fair | Participant | Add date |
| 14/08 | Half-Year Report January - June 2012, 7:00 a. m. CET | HOCHTIEF | ical | |
| 14/08 | Analysts' and investors' conference on the Half-Year Report | HOCHTIEF | ical | |
| September 12 | City | Event / Fair | Teilnehmer | Termin importieren |
| 18-22/09 | Husum, Germany | Husum Wind Energy | HOCHTIEF Solutions | ical |
| October 12 | City | Event / Fair | Participant | Add date |
| 08-10/10 | Munich, Germany | EXPO REAL 2012 15th International Trade Fair for Commercial Property and Investment | HOCHTIEF | ical |
| November 12 | City | Event / Fair | Participant | Add date |
| 07/11 | Interim Report January - September 2012, 7:00 a. m. CET | HOCHTIEF | ical | |
| 07/11 | Conference call with analysts and investors on the Interim Report | HOCHTIEF | ical |