GSA Gesellschaft für Schadstoffmessung und Auftragsanalytik
GSA offers its qualified and individualised services in the field of indoor pollution primarily to businesses in the health care and emission protection sector, to real estate agents, architects, facility and real estate management, home owners and t
Introduction
GSA offers its qualified and individualised services in the field of indoor pollution primarily to businesses in the health care and emission protection sector, to real estate agents, architects, facility and real estate management, home owners and t...

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In 1995 the company moved from Düsseldorf to Cologne, in the summer of 2004 the company moved again to Wermelskirchen, a city on the periphery of the business area Cologne / Düsseldorf, to establish a new and modern company surface of 900 m².
The Company Niezgodka was founded 1967 in Hamburg and is still a family business. Today nearly 60 employees are working at Niezgodka GmbH. With specializing in construction and production of valves in stainless steel, the company had great success fr
