DiaSys Diagnostic Systems GmbH: Diagnostic Reagents and Systems of Highest Quality

Two thirds of all diagnoses and therapeutic decisions are based on laboratory tests. DiaSys Diagnostic Systems was the first diagnostic company, which specialised on developing and manufacturing ready-to-use reagents of highest stability. Meanwhile, DiaSys is well-known as supplier of diagnostic systems of superior quality.

Today, laboratories, hospitals and phy­­sicians in more than 100 countries receive more than 90 different tests, fully automated analyzers as well as POC devices for near patient testing, which give reliable results in routine and special diagnostics e.g. in diabetes, metabolic syndrome, disorders of the iron or lipid metabolism and diseases of liver, kidneys or pancreas.

The global network of affiliates and distributors guarantees close contact to the users. Beside the headquarters in Holzheim, Rhein-Lahn-Kreis, DiaSys maintains production sites and holdings in China, India, Indonesia, Brazil, Japan, France and USA. The international development department continuously enhances the test portfolio and provides innovative and user-friendly system solutions for the diagnostic lab.


  1. Address

    Alte Straße 9
    65558 Holzheim
    Tel +49 6432 9146-0
    Fax +49 6432 9146-32

  2. Management

    Bertrand de Castelnau
    Dr. Günther Gorka
    Peter Zöller

  3. Year of establishment


  4. Business activity

    Development, production and sales of reagents and systems for the clinical laboratory, clinical chemistry, immunoturbidimetry, quality control, near patient testing