Thomas Weigelt

Dussmann Stiftung & Co. KGaA operates as a holding company with interests in service companies. It focuses on services in the areas of infrastructural and technical facility management, catering, as well as support and medical care for senior citizens. The company was founded by Peter Dussmann in 1963 and is headquartered in Berlin, Germany.

TEAG Thüringer Energie AG engages in the sale, distribution, and trade of energy and related products. It offers electricity, natural gas, as well as electro-mobility solutions. It also provides thermographic and air permeability examination of buildings, and other consulting services. The company was founded on November 15, 2007 and is headquartered in Erfurt, Germany.

OKV-Ostdeutsche Kommunalversicherung AG is a German mutual insurance company that specializes in providing insurance services to municipalities, public bodies, and public utility companies. The company is based in Berlin, Germany. The company offers a range of insurance products, including building, inventory, and liability insurance, as well as cyber-risk, legal protection, and accident insurance. Jürgen Meier has been the CEO of the company since 2017.

GASAG AG engages in the supply and distribution of electricity and natural gas. It also provides renewable energy solutions and services. The company was founded on January 1, 1847 and is headquartered in Berlin, Germany.

KARL WEISS Technologies GmbH is a German company that specializes in civil engineering and classical piping and sewer construction. The private company is based in Berlin, Germany.

Kommunale Dienstleistungs-Gesellschaft Thüringen mbH is a private company based in Erfurt, Germany. The German company provides technical, physical, and chemical services. The CEO of the company is Stefanie Preikschat.

Part of Stadtverwaltung Hildburghausen, Wohnungsgesellschaft Hildburghausen mbH is a housing company that offers apartments, houses, commercial rooms, parking spaces, and building plots in and around Hildburghausen. The company is based in Hildburghausen, Germany. The German company provides important information for its district heating customers and also offers tenant services. The company was founded in 1991, and the CEO is Bernd Klering.