Thomas Zinnöcker

GAGFAH Immobilien Management GmbH provides real estate, real estate investment and building construction services. It provides provisions pertaining to tenant protection. The company is headquartered in Essen, Germany.

Deutsche Telekom Immobilien und Service GmbH provides facility management and telecommunication services. The company is headquartered in Frankfurt am Main, Germany.

Part of ista SE, ista Holding Europe GmbH is an investment holding German company. The company is based in Essen, Germany. The CEOs are Dieter Hackenberg and Thomas Zinnöcker. The private company was founded in 2003.

taskforce - Management on Demand AG provides line and project management services. It focuses on digital transformation, general management, supply chain and program management sectors. The company was founded by Lennart Koch and is headquartered in Munich, Germany.

Trionista Topco GmbH is a firm with interests in energy services. Its services include development, production and distribution of products for measurement, control of energy consumption, and services relating to the metering and billing of energy consumption data. In addition the firm's service also includes the provision of services to other businesses. The company was founded on September 16, 2013 and is headquartered in Essen, Germany.

Part of CK Hutchison Holdings Ltd., ista Energy Solutions Ltd. is a British company that provides energy services. The private company is based in Duxford, UK. The company was founded in 1957 by Johannes Schultz, Karl Völker. The CEO is Thomas Zinnöcker.

Part of Trius Holdings SCA, ista Deutschland GmbH is a private company based in Essen, Germany that provides solutions to make buildings climate-friendly, safe, and comfortable. The German company's digital infrastructure can also be used for other applications, such as digital smoke alarm devices, which can be remotely serviced, increasing residents' safety. With over 6,000 employees in 22 countries, ista aims to become the partner for digitization and smart solutions for building owners and their residents. The company was founded in 1957 by Johannes Schultz, Karl Völker, and Thomas Zinnöcker has been the CEO of the company since 2016. ista offers data-based products and services that make individual energy consumption transparent to residents, helping them save energy, costs, and CO2 emissions.