Hannes Winkler

TRIGAMMA Vermögensverwaltung GmbH operates as a holding company, which engages in the management of participating interests in firms. It also provides financial management services for associated enterprises. The company was founded by Ernst Lemberger and Hannes Winkler in 1989 and is headquartered in Vienna, Austria.

Frauenthal Automotive Elterlein GmbH is the largest producer of compressed air tanks with a market share of over 80%%. The private company is based in Elterlein, Germany. The German company offers internships and holiday work opportunities for students to gain insights into various professions. The compressed air tanks produced by the company are used in air brake systems to store compressed air for securing the necessary braking functions. The company has operational procurement teams responsible for the daily procurement of materials, which are always coordinated with the strategic procurement team. The company was founded in 1990, and the CEOs are Detlef Schubert and Matthias Thalheim.

Part of TRIGAMMA Vermögensverwaltung GmbH, SHT Haustechnik AG is Austria's number one partner for installers in the field of plumbing, heating, and installation technology. The company is based in Vienna, Austria. The Austrian company offers marketing services such as advertising campaigns and seminars to its member companies under the well-known brand "1a-Installers". SHT Haustechnik also has a passion for bathrooms and offers a range of high-quality products under the PASSION brand.

Ventana Holding GmbH operates as a private holding company. The company was founded in 1999 and is headquartered in Vienna, Austria.