InfraServ Wiesbaden

InfraServ GmbH & Co. Wiesbaden KG (ISW) is a German industrial services group and the operator of the Industriepark Wiesbaden, also known as the Industriepark Kalle-Albert, located on the banks of the Rhine in the Hessian state capital of Wiesbaden. The company group employs around 950 people and provides a broad range of services including energy supply, environmental protection and emissions control, logistics and hazardous materials storage, waste disposal and wastewater treatment, information technology, fire protection, occupational safety, occupational medicine, real estate management, and facility management. The company was created in 1997 through the spin-off of parts of Hoechst AG at the former Kalle-Albert site. Following the merger of Hoechst and Rhone-Poulenc into Aventis in 1999, Hoechst AG transferred its shares to Celanese AG. Today, the managing general partner of InfraServ Wiesbaden is InfraServ Verwaltungs-GmbH in Frankfurt am Main, a subsidiary of Celanese GmbH. The limited partnership shares are held by various companies. As a wholly owned subsidiary, InfraServ Wiesbaden Technik GmbH & Co. KG (ISW Technik), along with its subsidiaries EMW Technik and PIK Anlagenbau, belongs to the InfraServ Wiesbaden Group. ISW Technik, with more than 400 specialists, focuses on the planning, realization, and maintenance of plants and buildings for customers in the Rhein-Main region. The parent company also includes the InfraServ Wiesbaden Bildungszentrum, which provides vocational training and adult education in technical professions for industrial park companies and other regional businesses. In 2024, the ISW Group generated revenue of 295.3 million euros. In 2020, the largest investment in the company's history went into operation with a new gas and steam turbine power plant. The power plant, with its 36-meter-high boiler house and two 60-meter-high chimneys, is a landmark in the region. Its capacity was increased from 32 to 78 megawatts. As of mid-2025, the industrial park hosts around 75 companies with nearly 6,000 employees in total.

InfraServ Wiesbaden emerged in 1997 through the spin-off of parts of Hoechst AG at the former Kalle-Albert site in Wiesbaden. The site itself has a long history, with the Chemische Fabrik Kalle and Chemische Werke Albert as predecessors. The historic Kalle-Haus building within the industrial park is part of the Route der Industriekultur Rhein-Main (Rhine-Main Industrial Heritage Route). In 1999, following the merger of Hoechst and Rhone-Poulenc to form Aventis, Hoechst AG transferred its shares in InfraServ Wiesbaden to Celanese AG. This established the ownership structure that continues today, with InfraServ Verwaltungs-GmbH in Frankfurt am Main, a subsidiary of Celanese GmbH, acting as the managing general partner. In 2020, the company commissioned a new gas and steam turbine power plant, the largest investment in its history. The plant increased power capacity from 32 to 78 megawatts and, with its 36-meter-high boiler house and two 60-meter-high chimneys, became a regional landmark. As of mid-2025, the industrial park is home to around 75 companies employing nearly 6,000 people. In 2024, the ISW Group reported revenue of 295.3 million euros.

• 2025

  As of mid-2025, the industrial park hosts around 75 companies with nearly 6,000 employees.

• 2024

  ISW Group reports revenue of 295.3 million euros.

• 2020

  New gas and steam turbine power plant commissioned, increasing capacity from 32 MW to 78 MW.

• 1999

  Hoechst AG transfers its shares to Celanese AG following the Hoechst-Rhone-Poulenc merger into Aventis.

• 1997

  InfraServ Wiesbaden founded through spin-off of Hoechst AG operations at the Kalle-Albert site.

Operator of a major chemical industrial park and provider of integrated industrial services in the Rhein-Main region.

• Energy supply

• Environmental protection and emissions control

• Logistics and hazardous materials storage

• Waste disposal and wastewater treatment

• Information technology

• Fire protection

• Occupational safety and medicine

• Real estate and facility management

• Plant engineering and maintenance (ISW Technik)

• Vocational training and adult education (Bildungszentrum)

1. 1InfraServ Wiesbaden - Wikidatawikidata.org
2. 2InfraServ Wiesbaden - Wikipedia (German)de.wikipedia.org