Siegried Vallant

SPL Powerlines GmbH & Co. KG provides planning, installation and maintenance of energy infrastructures. It designs and develops electric products. The company was founded in 1997 and is headquartered in Vienna, Austria.

Part of Bouygues SA, VLB Leitungsbau GmbH & Co. KG specializes in the planning, installation, and maintenance of transmission lines. The company is based in Bad St.Leonhard, Austria.

Part of Bouygues SA, FEB-Fahrleitung & Elektrobau GmbH is an Austrian international company that operates in the rail, energy, products, and emobility sectors. The company is based in Wolkersdorf, Austria. The company provides consulting, engineering, installation, maintenance, and product development services to its international rail customers. FEB-Fahrleitung & Elektrobau electrifies streetcars, subways, light rail, and trolleybus systems in the local transportation sector and standard and high-speed rail lines in the long-distance transportation sector. The company's energy business focuses mainly on Austria and Germany, where it provides a complete range of services from planning to maintenance of medium, high, and extra-high voltage lines. FEB-Fahrleitung & Elektrobau develops and distributes products, components, and complete systems for electrification in local and long-distance transportation. The company's emobility business offers customized charging solutions for bus and truck depots. The company was founded by Rudolf Schütz, and the CEO is Erwin Chladek.

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.

Geiswinkler & Geiswinkler Architekten ZT GmbH provides electrical fittings and architectural planning for buildings and industries. The private company is based in Vienna, Austria.

Powerlines Group GmbH provides construction and power engineering infrastructure facilities. The firm specializes in the electrification of railway tracks, with focus on the design and maintenance of catenary systems of long and short-distance networks. It also engages in the implementation of power infrastructure projects for rail-mounted vehicles and trolley buses. The company was founded in 2006 and is headquartered in Wolkersdorf im Weinviertel, Germany.