| Calendar of events 2010 | |||
| February 10 | City | Event / Fair | Participant |
| 01-03/02 | Berlin | Quo Vadis annual congress "meet the best – to be the best" | HOCHTIEF Construction |
| 09-11/02 | Essen | E-world Energy & Water | HOCHTIEF Energy Management |
| March 10 | City | Event / Fair | Participant |
| 09-11/03 | Frankfurt am Main | Facility Management Trade Fair and Congress | HOCHTIEF Facility Management |
| 11-12/03 | Wiesloch | Join the best | HOCHTIEF |
| 16/03 | Köln | OFW | HOCHTIEF |
| 16-18/03 | Berlin | Energy Masters Further information | HOCHTIEF Energy Management |
| 25/03 | Business Results Press Conference 2010 | HOCHTIEF | |
| 25/03 | Analysts' and Investors' conference on the Full-Year Report 2009 | HOCHTIEF | |
| April 10 | City | Event / Fair | Participant |
| 12-15/04 | Doha | Project Qatar 2010 | Streif Baulogistik |
| 19-23/04 | Frankfurt am Main | Hannover Messe, ESCO-Forum | HOCHTIEF Energy Management |
| 27-28/04 | Berlin | Connecticum | HOCHTIEF |
| May 10 | City | Event / Fair | Participant |
| 04-06/05 | Darmstadt | Konaktiva | HOCHTIEF |
| 11/05 | Essen | General Shareholders' Meeting 2010 | HOCHTIEF |
| 17/05 | Quarterly Report January to March 2010 | HOCHTIEF | |
| 17/05 | Conference call with analysts and investors on the Quarterly Report | HOCHTIEF | |
| 19-20/05 | Freiburg | 6th International Geothermal Conference Further information | HOCHTIEF Energy Management |
| 28/05 | Münster | Business Contacts | HOCHTIEF |
| June 10 | City | Event / Fair | Participant |
| 22-23/06 | Stuttgart | Consense – International Congress and Trade Fair for Sustainable Building | HOCHTIEF |
| 28/06 | Bochum | Bonding | HOCHTIEF |
| August 10 | City | Event / Fair | Participant |
| 16/08 | Half-Year Report January to June 2010 | HOCHTIEF | |
| 16/08 | Analysts' and investors' conference on the Half-Year Report | HOCHTIEF | |
| October 10 | City | Event / Fair | Participant |
| 04-06/10 | Munich | Expo Real | HOCHTIEF |
| November 10 | City | Event / Fair | Participant |
| 11/11 | Interim Report January to September 2010 | HOCHTIEF | |
| 11/11 | Conference call with analysts and investors on the Interim Report | HOCHTIEF | |
| 24-25/11 | Cologne | Absolventenkongress ("Graduates' Congress") | HOCHTIEF |
| 29/11-01/12 | Aachen | Bonding | HOCHTIEF |