| 1910 |
Starting of “Derenko” as a carpenter company, by August Derenko. |
| 1934 |
Carry on by Johann and Josef Derenko. |
| 1974 |
Carry on by Hans and Hannelore Hiehs, and changing to a Ges.m.b.H. |
| 1976 |
Starting of the planing office of hotelerie and gastronomy, at Vienna 9. district, Pramergasse 6 |
| 1985 |
Moving and expansion of carpent to Vienna 21. district, Prager Street 274- 276 |
| 1989 |
Carry on of “Derenko” by Andreas and Gerda Hiehs, and further expansion of the planing office |
| 2004 |
“All together now”, the office is moving to Seegasse 6, 1090 Vienna |
| 2005 |
The 5th generation of Derenko, made by Mrs. Bianca Hiehs |
| 2009 |
Mr. Bernhard Hiehs joins the team of Derenko |
| 2010 |
Derenko celebrates 100 years of experience |
| 2011 |
The family roots lead us into the beautiful Waldviertel. Opening of the new company location in lower austria (Schiltern near Langenlois). |
100 YEARS
OF DERENKO