- 1994: The company is founded by Maria and Wolfgang J. Riegler in Weeze, Alte Heerstr. 36, Germany
- 1999: Relocation to new production and administration building in Weeze, Industriestr. 44, Germany
- 2004: Capacity stepped up to five production lines
- 2007: Andreas Bäßler joins the board of directors
- 2007: Major expansion of the facility adds more room for production and storage
- 2008: Larger sales team and international alignment
- 2009: Legal company form changed to AG - Delta Kunststoffe AG
- 2010: Markus Riegler joins the board of directors.
- 2011: EUR 1.5m investment in additional production lines.
- 2012: Further expansion of sales force and service team.
Additional 10.000 sqm. for further expansion have been acquired in 2010.