Roland Feistritzer

PORR Umwelttechnik GmbH engages in the planning of environmental projects as well as the implementation of pollution detection, process development, and plant construction works. It also offers transportation and recycling services for demolition and construction waste. The company was founded in 1990 and is headquartered in Vienna, Austria.

Siemens dd engages in the provision of electricity production, transmission, and distribution solutions. It also offers installation and maintenance services. The company's products are automation, identification, locating, and process control systems, industry software, converters, generators, couplings, and gear units. Siemens was founded in 1886 and is headquartered in Zagreb, Croatia.

Bundesimmobiliengesellschaft mbH engages in the construction, leasing, and management of real estate. It specializes in the administration and maintenance of buildings, construction and project management, overall restoration, and facility management. The company was founded in 1992 and is headquartered in Vienna, Austria.

Siemens AG Österreich engages in the manufacture and sale of industrial products in the fields of electrical engineering, telecommunications engineering, measurement engineering, control engineering, machine building, as well as precision mechanics and related technologies. It also plans, executes, and sells all types of systems and system components for the production, transmission, and processing of information and energy. The company was founded on October 23, 1879 and is headquartered in Vienna, Austria.

Wiener Städtische Versicherung AG provides insurance services and solutions. It operates through the following segments: Property and Casualty, Life, and Health. It offers financial security as well as homeowner, household, motor vehicle, and travel insurances to private customers. It also specializes in company pension plans, severance pay schemes, company health insurances, and actuarial services. The company was founded in 1824 and is headquartered in Vienna, Austria.

Siemens Industry, Inc. provides building controls, fire safety, energy and environmental solutions, and security system solutions. It offers electrical engineering services and manufactures electrical products. The firm also provides communication, transportation, and power generation systems and services. The firms divisions include building technologies, drive technologies, industry automation, industry solutions and mobility. The company was founded on July 5, 1994 and is headquartered in Buffalo Grove, IL.