Frequentis AG is an Austria-based supplier of communications and information systems, diversifying its activities into two business segments: ATM (Air Traffic Management) business segment, which includes ATM Civil, including Information Management, and Defense business fields, and PST (Public Safety & Transport) business segment, which includes Public Safety, Public Transport and Maritime business fields. As of December 31, 2010, the Company had seven wholly owned subsidiaries in the area of Sales & Operations, four wholly owned subsidiaries and one majority owned subsidiary, as well as one affiliate, APUS Software GmbH, in the area of Software, and two wholly owned, one majority owned, one minority owned, as well as one affiliate, 3T Communications AG, in the area of Services. The Company's subsidiaries are located in the United States, the United Kingdom, Canada, Australia, Germany, Singapore, Slovak Republic, Romania, and the Czech Republic.

voestalpine is engaged in the production, processing, and distribution of materials made of steel and in research and development in the areas of metallurgy, metal processing, and materials technology. Co.'s steel division focuses on the production and processing of flat steel products. Co.'s special steel division is involve in tool steel and high-speed steel. Co.'s metal engineering division is engaged in turnout technology, rails and treated wire, and tubes. Co.'s metal forming division is involve in tube products and precision strip steel as well as pre-finished system components. Co.'s other activities include heavy plate production, a foundry, and a number of downstream processes.