About us

The GSA Gesellschaft für Schadstoffanalytik mbH was founded in 2005. Its current managing directors are former employees of the Gesellschaft für Staubmesstechnik und Auftragsanalytik GmbH in Neuss.

We are experts due to decades of experience with pollutants. Our qualified and individualised range of services is primarily aimed at companies in the field of occupational safety and emission protection. Our customers include architects, remediation companies, representatives of the real estate management, owners and tenants.

30 +

years of experience


international certificates


out of 5 stars on google

Our certificates

Certificates of the Gesellschaft für Schadstoffanalytik mbH (testing laboratory)

Sicherheits Certifikat Contraktoren
TÜV Rheinland
Forum Asbest Schweiz

Trusted by:

> 50% DAX companies

Known from:

Our accreditation

We carry out our activities in a professional and competent manner at an internationally comparable level.

Round robin tests

Taking part in round robin tests is a crucial element of quality assurance.

Our accreditation with the DAkkS ensures that our testing and analysis procedures are carried out according to the highest possible quality and safety standards.

GSA is a regular participant of the following interlaboratory tests, conducted by HSL (Health and Safety Laboratory) and IOM (Institute of Occupational Medicine)

  • AFRICA (Asbestos Fibre Regular Informal Counting Arrangement) von IOM in Edinburgh
  • AIMS (Asbestos in Materials Scheme) von HSL in Buxton
  • SEMS (Scanning Electron Microscopy Fibre Counting Scheme) von HSL in Buxton


Three decades in the service of health and environmental protection.

For more than three decades, we have been committed to ensuring that people can live in a healthy environment at work and at home. Our many years of experience and in-depth knowledge enable us to recognise risks and offer effective solutions for controlling harmful substances. Numerous companies also appreciate this quality standard. We are proud that we now count over 50 % of DAX-listed companies among our customers.

Our commitment to sustainability goes beyond direct pollutant analysis. By successfully qualifying as a supplier on the independent Integrity Next platform, we show that transparency and responsibility are important to us. We not only want to protect people’s health, but also make a positive contribution to protecting our planet.

Find out more about our sustainability profile on Integrity Next here.

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