CTC ABGiersch GmbH is a medium-sized company headquartered in Hemer with training centers in Hohenaspe and Kaufbeuren. In the 2024 fiscal year the company employed an average of 64 people. Giersch manufactures and sells heating burners and boilers as well as photovoltaic-thermal solar systems and additionally trades renewable heating systems such as heat pumps, photovoltaic modules and gas condensing boilers. Key sales markets are boiler manufacturers, German heating installation companies and trading companies; burners are also exported abroad.
Die Herstellung und der Vertrieb von umweltschonenden und energiesparenden wärmetechnischen Geräten sowie die Herstellung und der Vertrieb zugehöriger Artikel
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Source: German Commercial Register (Handelsregister) Iserlohn Local Court, HRB 8776 (as of 7 October 2026)
Source: German Commercial Register (Handelsregister) Iserlohn Local Court, HRB 8776 (as of 7 October 2026)
Source: German Commercial Register (Handelsregister) Iserlohn Local Court, HRB 8776 (as of 7 October 2026)
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Source: German Commercial Register (Handelsregister) Iserlohn Local Court, HRB 8776 (as of 7 October 2026)
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