DDI Hans Zirl

Studies in metallurgical engineering, specialized in foundry, Montan University Leoben

Graduation as Dipl.Ing.

Postgraduate studies in economics, Technical University of Munich

Graduation as Dipl.Wirtsch.Ing.

Steel foundry Georg Fischer, Schaffhausen, Switzerland

Entry into the family business as a sales manager and investment planner

Since 1984 CEO of the firm ZIRLGUSS GmbH

Authorised Officer

Mag. Eva Tarjan

Studies in German, history, philosophy at the Karl-Franzens University, Graz

Graduation as Mag.phil.

Professor at business schools in Deutschlandsberg and Graz

Since 2013 Authorized Officer at ZIRLGUSS

Director Sales & Marketing

Mag. Dr. Werner Oratsch

Studies in Economics at the Karl-Franzens-University, Graz

Graduation as Master and Doctor

IT-Sales and Business Consulting in Vienna and Graz

Financial Officer at a technical consulting company in the paper industry

Financial Officer at an American copper wire manufacturing company

CFO in the automotive supply industry

Since 2017 Director Sales and Marketing at Zirl Guss GmbH

Project Management

Ing. Jelena Reinbacher

Born in Belgrade

Two completed apprenticeships, including machine tool builder

Specialist training as a CNC technician

Study qualification course

Studied “Energy, Transport and Environmental Management” at the University of Applied Sciences “Joanneum”

College for industrial engineering, Higher Technical College Graz


Industrial engineer with several years of experience in the automotive supply industry

as a prototype project coordinator and connection engineer with a focus on quality

Project manager at Zirl Guss since March 2023


“If you want to be fast, go it alone.

If you want to go far, go with us.” (African proverb)

Office Management

Sandra Bergmann, Bakk.rer.nat.

Higher School Certificate

Bachelor’s degree at the Karl-Franzens-University in Graz

10 years of professional experience in various business operations

Since February 2019 at Zirl Guss

Office Management

Office Management

Silvia Reinbacher

Secondary school for economics and business studies

Office and Data Processing School

LAP office clerk at the WIFI Graz

More than 20 years of professional experience in the service sector

Since July 2023 at Zirl Guss

Office Management

Finanzen / Controlling

Waltraud Potzinger

Apprenticeship office clerk

Accountant exam at the Chamber of Commerce Graz

24 years professional experience in accounting (e.g. Karl-Franzens-University Graz)

Child Break for 3 children

Since January 2018 at Zirl Guss

Management Finance and Controlling