ESIM Chemicals


Dr. Frank Wegener

Chief Executive Officer

Frank Wegener was appointed CEO of ESIM Chemicals with effect from 1 March 2019.

He studied Technical Chemistry, graduating in 1992 from Essen University, Germany. Since then he has held executive positions at prominent chemical industry companies.




Harald Gruber

Chief Operating Officer

Harald Gruber was appointed COO during the carve out of ESIM Chemicals from DPx Fine Chemicals in September 2015.

He joined ESIM Chemicals after a successful career of more than 37 years in different chemical companies. During this time he gained a broad range of expertise covering the disciplines of Manufacturing, R&D including Piloting and Technical Service in the ISO as well as in the pharmaceutical environment.

Formerly, Harald held several management positions at DSM and DPx Fine Chemicals Austria including Production Manager, Manufacturing Director and Head of Operational Excellence. Harald Gruber started as apprentice finished two years master school and successfully completed an education as a Chemical Technical Engineer.


Bernhard Kienberger

Chief Financial Officer

Bernhard KienbergerBernhard Kienberger joined the management team in January 2016 and was appointed CFO of ESIM Chemicals.

Bernhard holds a master’s degree in Business Administration from Johannes Kepler University in Linz, Austria. He has a background of more than 20 years experience in the finance sector with a focus on taxes, accounting and controlling. In addition, he holds important roles in restructuring projects, SAP-projects and M&A-activities.