Norbert Nagele

Unternehmens Invest AG is a holding company, which engages engages in the acquisition and administration of industrial companies. The company also invests in national and international medium-sized enterprises with long-term investment strategy. It operates through the following segments: UIAG, Pongratz Group, UIAG Holding Group, and Begalom Group. The company was founded in 1990 and is headquartered in Innere Stadt, Austria.

Swietelsky AG engages in the provision of construction and engineering services. Its services include roads, plazas, and areas; railway construction; building construction; tunneling; civil construction; bridge construction; sports and recreation facilities; and test center. It operates through the following geographical segments: segments: Austria, Germany, Hungary, the Czech Republic, and other countries. The company was founded by Hellmuth Swietelsky in 1936 and is headquartered in Linz, Austria.

SWIETELSKY Baugesellschaft mbH /Kladensky & Brustmann/ is an Austrian company led by Kurt Kladensky and Hellmuth Brustmann. The private company is based in Linz, Austria.

delfortgroup AG engages in the design, development, manufacturing and promotion of specialty papers. Its products include ecopac, electrical insulation, plugwrap and cigarette, release base, thin print, printed products, and tipping base papers. The firm serves the tobacco, print and publish, pharma, cosmetics and healthcare, labels, food and cooking, power and transformers, and retail industries. The company was founded in 2006 and is headquartered in Traun, Austria.

Silhouette International Schmied AG designs, manufactures, and markets ophthalmic frames. The private company is based in Linz, AT, and has subsidiaries in Austria, Czechia, Spain, and the United Kingdom.