History of Riegeltechnik® GmbH:
1957
Foundation of Riegeltechnik® GmbH by
Mr Hans Wilhelm Pentzien and Mr. Wilhelm Zorn
of shareholders agreement dated 18 March 1957
Headquarters: Delle 47, 453 Mülheim an der Ruhr
1965
Company headquarters Hingbergstr. 63, 453 Mülheim an der Ruhr
1973
Mr. Pentzien retires at 27 November 1973 from the company
1974
Mr. Herbert Düsing is on 02 May 1974 appointed as Deputy Managing Director
1978
The Managing Director Mr. Wilhelm Zorn is deceased
1989
Renting the workshop Arminstr. 103, 47117 Oberhausen
1994
Relocation of headquarters to Hardenbergstr. 186,
45575 Mülheim an der Ruhr
1996
Alojz Potocnik, according to partnership agreement of 24 January 1996 appointed associate
2004
Company headquarters moved to the workshop
Arminstr. 103, 46117 Oberhausen
2009
Relocation of the headquarters of the total shareholders' agreement from 27.04.2009 to Laubenhof 15, 45326 Essen
2016
The Managing Director Mr. Herbert Düsing is deceased